9782 Series Two Cell
Conductivity/Resistivity
Analyzer/Controller
Operator’s Manual
70-82-25-74
Rev 3
6/99
Copyright, Notices, and Trademarks
Printed in U.S.A. – © Copyright 1999 by Honeywell Inc.
Revision 3 – 6/99
While this information is presented in good faith and believed to be accurate, Honeywell
disclaims the implied warranties of merchantability and fitness for a particular purpose and
makes no express warranties except as may be stated in its written agreement with and for its
customer.
In no event is Honeywell liable to anyone for any indirect, special or consequential damages.
The information and specifications in this document are subject to change without notice.
CE CONFORMITY
This product is in conformance with the protection requirements of the following European Council
Directives: 89/336/EEC, the Electromagnetic Compatibility Directive and 73/23/EEC, the Low Voltage
Directive. Conformance of this product with any other “CE Mark” Directive(s) shall not be assumed.
ATTENTION
The emission limits of EN 50081-2 are designed to provide reasonable protection against harmful
interference when this equipment is operated in an industrial environment. Operation of this equipment in a
residential area may cause harmful interference. This equipment generates, uses and can radiate radio
frequency energy and may cause interference to radio and television reception when the equipment is used
closer than 30 m to the antenna(e). In special cases, when highly susceptible apparatus is used in close
proximity, the user may have to employ additional mitigating measures to further reduce the
electromagnetic emissions of this equipment.
SYMBOL DEFINITIONS
This CAUTION symbol on the equipment refers the user to the Product Manual for additional
!
information. This symbol appears next to required information in the manual.
WARNING, risk of electric shock. This symbol on the equipment warns the user of potential
shock hazard where voltages greater than 30 Vrms, 42.4 Vpeak, or 60 Vdc may be accessible.
Earth Connnection.
Honeywell
Industrial Automation and Control
Automation College
2820 West Kelton Lane
Phoenix, AZ 85023
(602) 313-5669
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99ii
About This Document
Abstract
This manual contains instructions for installation and operation of the 9782 Series
Conductivity/Resistivity Analyzer/Controller.
Revision Notes
The following list provides notes concerning all revisions of this document.
Rev. ID Date Notes
0 6/98 This manual accompanies the initial release of the 9782 Series
Conductivity/Resistivity Analyzer/Controller.
1 7/98 Changes were made to Section 9 to reflect changes in the software.
2 12/98 Included dimension drawings for backlit and non-backlit option (Sec. 3)
3 6/99 Edits were made to standardize terminology and to add the latest MSG.
References
Honeywell Documents
The following list identifies all Honeywell documents that may be sources of reference for the material
discussed in this publication.
Document Title ID # Binder Title Binder ID #
Trademarks
AutoClean is a trademark of Honeywell Inc.
Noryl is a trademark of GE Company.
Contacts
The following list identifies important contacts within Honeywell.
Organization Telephone Address
Honeywell Technical Assist ance Center 1-800-423-9883
(USA and Canada)
1100 Virginia Avenue
Fort Washington, PA 19038
6/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual iii
Contents
1. INTRODUCTION ..................................................................................................... 1-1
1.1 Description ..................................................................................................................................... 1-1
Multi-function instrument...............................................................................................................................1-1
User interface..................................................................................................................................................1-1
Easy to configure............................................................................................................................................1-1
Input................................................................................................................................................................1-2
Outputs............................................................................................................................................................1-2
DE (Digital integration)..................................................................................................................................1-2
Relays.............................................................................................................................................................1-2
1.2 Features .......................................................................................................................................... 1-3
Automatic cell washing...................................................................................................................................1-3
Computed values.............................................................................................................................................1-3
Automatic range scaling..................................................................................................................................1-3
Password protection........................................................................................................................................1-3
Extensive diagnostics......................................................................................................................................1-3
Watertight corrosion-resistant case.................................................................................................................1-4
Solution Temperature Compensation..............................................................................................................1-4
1.3 Operating the Analyzer/Controller................................................................................................. 1-6
1.3.1 Keypad Use ........................................................................................................................... 1-6
Front panel keys used for all operator tasks....................................................................................................1-6
Selecting a parameter for edit.........................................................................................................................1-7
Editing a parameter assignment from a list of available choices.....................................................................1-7
Editing a parameter numeric value .................................................................................................................1-7
Controlling an AutoClean operation manually................................................................................................1-7
1.3.2 Online Displays.....................................................................................................................1-8
Introduction ....................................................................................................................................................1-8
Individual cell display.....................................................................................................................................1-8
Combined display...........................................................................................................................................1-9
Computed value..............................................................................................................................................1-9
Clock and AutoClean....................................................................................................................................1-10
1.4 Menu Hierarchy............................................................................................................................ 1-11
Menus for every task.....................................................................................................................................1-11
1.5 Planning........................................................................................................................................ 1-13
1.5.1 Overview............................................................................................................................. 1-13
Configuration system minimizes decisions...................................................................................................1-13
1.5.2 Using Relays........................................................................................................................ 1-13
Relays assigned during I/O setup..................................................................................................................1-13
Interactions affecting permitted relay assignments.......................................................................................1-14
1.5.3 Deciding on a Control Strategy........................................................................................... 1-16
All 9782 models can use relays for control...................................................................................................1-16
Optional analog outputs for control ..............................................................................................................1-16
Selecting a strategy.......................................................................................................................................1-16
1.6 Overview of Installation and Setup Tasks....................................................................................1-17
Setup tasks described in this manual.............................................................................................................1-17
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99iv
2. SPECIFICATIONS AND MODEL NUMBER............................................................ 2-1
2.1 Specifications ................................................................................................................................. 2-1
2.1.1 User Interface........................................................................................................................ 2-1
Display............................................................................................................................................................2-1
Keypad............................................................................................................................................................2-1
2.1.2 Physical ................................................................................................................................. 2-1
Case ................................................................................................................................................................2-1
Case Dimensions.............................................................................................................................................2-1
Weight ............................................................................................................................................................2-1
Mounting ........................................................................................................................................................2-1
2.1.3 Compliance............................................................................................................................ 2-2
CE conformity.................................................................................................................................................2-2
Year 2000 .......................................................................................................................................................2-2
2.1.4 Electrical................................................................................................................................ 2-2
Power Requirements....................................................................................................................................... 2-2
Fuse Rating.....................................................................................................................................................2-2
2.1.5 Model Ranges........................................................................................................................ 2-2
Standard range models....................................................................................................................................2-2
Wide range models.........................................................................................................................................2-3
2.1.6 Operating Conditions ............................................................................................................ 2-3
Operating Conditions......................................................................................................................................2-3
Performance under reference operating conditions.........................................................................................2-4
Operating Influences under normal operating conditions...............................................................................2-4
2.1.7 Outputs .................................................................................................................................. 2-4
Standard alarm/control relays .........................................................................................................................2-4
Optional alarm/control relays .........................................................................................................................2-4
Optional analog outputs.................................................................................................................................. 2-4
Optional Digital Communication Link............................................................................................................2-5
2.1.8 Temperature Compensation ..................................................................................................2-5
Availability.....................................................................................................................................................2-5
2.1.9 AutoClean.............................................................................................................................. 2-5
Cell rinse schedule settings.............................................................................................................................2-5
2.1.10 Control................................................................................................................................. 2-5
Settings...........................................................................................................................................................2-5
2.1.11 Computed Values................................................................................................................ 2-6
Available selections........................................................................................................................................2-6
2.2 Model Number Breakdown............................................................................................................ 2-7
Introduction ....................................................................................................................................................2-7
3. UNPACKING, PREPARATION, AND MOUNTING ................................................. 3-1
3.1 Overview ........................................................................................................................................ 3-1
Introduction ....................................................................................................................................................3-1
What’s in this section?....................................................................................................................................3-1
3.2 Unpacking and Preparing............................................................................................................... 3-2
Procedure........................................................................................................................................................3-2
3.3 Mounting........................................................................................................................................ 3-3
Introduction ....................................................................................................................................................3-3
Panel-mounting...............................................................................................................................................3-3
Wall- and pipe-mounting................................................................................................................................3-3
6/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual v
4. POWER WIRING..................................................................................................... 4-1
4.1 Overview ........................................................................................................................................ 4-1
Introduction ....................................................................................................................................................4-1
What’s in this section?....................................................................................................................................4-1
4.2 General Wiring Practices for Power Wiring..................................................................................4-2
Safety precautions...........................................................................................................................................4-2
Avoid damage to components.........................................................................................................................4-2
Wiring for immunity compliance ....................................................................................................................4-2
Conform to code.............................................................................................................................................4-3
4.3 Power Wiring Considerations ........................................................................................................ 4-3
Recommended wire size .................................................................................................................................4-3
Power supply voltage and frequency within specs..........................................................................................4-3
4.4 Installing Power Wiring................................................................................................................. 4-4
Procedure........................................................................................................................................................4-4
5. I/O SETUP AND SYSTEM CONFIGURATION........................................................ 5-1
5.1 Overview ........................................................................................................................................ 5-1
Introduction ....................................................................................................................................................5-1
What’s in this section?....................................................................................................................................5-1
Powering up the Analyzer/Controller .............................................................................................................5-1
5.2 I/O Setup and Configuration Tasks................................................................................................ 5-2
Ease of configuration......................................................................................................................................5-2
Accessing the I/O setup and configuration menus..........................................................................................5-2
Purpose of I/O setup.......................................................................................................................................5-2
Purpose of configuration menu items..............................................................................................................5-2
Illustrations.....................................................................................................................................................5-3
System defaults...............................................................................................................................................5-3
5.3 Performing I/O Setup ..................................................................................................................... 5-4
Purpose...........................................................................................................................................................5-4
Display resolution and unit of measure...........................................................................................................5-4
5.4 Configuring Current Adjusting Type (CAT) Control and/or Retransmission of Process Variables5-10
Purpose.........................................................................................................................................................5-10
Procedure......................................................................................................................................................5-10
5.5 Configuring On/Off, Duration Adjusting Type (DAT), or Pulse Frequency Type (PFT) Control5-12
Purpose.........................................................................................................................................................5-12
Procedure......................................................................................................................................................5-12
5.6 Configuring Alarms...................................................................................................................... 5-16
Purpose.........................................................................................................................................................5-16
Procedure......................................................................................................................................................5-16
5.7 Setting the Clock.......................................................................................................................... 5-17
Purpose.........................................................................................................................................................5-17
Procedure......................................................................................................................................................5-17
5.8 Configuring AutoClean................................................................................................................ 5-18
Purpose.........................................................................................................................................................5-18
Timer-initiated operation..............................................................................................................................5-18
Operator-initiated operation..........................................................................................................................5-18
Hold mode....................................................................................................................................................5-19
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99vi
5.9 Selecting a Computed Value to Be Displayed............................................................................. 5-21
Purpose.........................................................................................................................................................5-21
Procedure......................................................................................................................................................5-21
5.10 Summary of Menu Choices and System Defaults......................................................................5-23
Introduction ..................................................................................................................................................5-23
6. INPUT AND OUTPUT WIRING ............................................................................... 6-1
6.1 Overview ........................................................................................................................................ 6-1
Introduction ....................................................................................................................................................6-1
What’s in this section?....................................................................................................................................6-1
6.2 General Wiring Practices for I/O Wiring....................................................................................... 6-2
Safety precaution............................................................................................................................................6-2
Avoid damage to components.........................................................................................................................6-2
Immunity Compliance.....................................................................................................................................6-2
Conform to code.............................................................................................................................................6-2
Recommended maximum wire size.................................................................................................................6-3
Cables for locations without interference........................................................................................................6-3
Shielded wiring for locations with interference..............................................................................................6-3
Avoiding interference .....................................................................................................................................6-3
References ......................................................................................................................................................6-3
6.3 Wiring Analog Inputs and Outputs................................................................................................. 6-4
Introduction ....................................................................................................................................................6-4
Cell identification significant to computed value............................................................................................6-4
Procedure........................................................................................................................................................6-4
6.4 Wiring Relays................................................................................................................................. 6-7
6.4.1 Installation............................................................................................................................. 6-7
Introduction ....................................................................................................................................................6-7
Procedure........................................................................................................................................................6-7
6.4.2 Disconnecting RC Arc Suppression Circuits........................................................................ 6-9
Introduction ....................................................................................................................................................6-9
Procedure........................................................................................................................................................6-9
6.4.3 Wiring a Device to the Relay Indicating Output Range Status........................................... 6-10
Introduction ..................................................................................................................................................6-10
Interconnections............................................................................................................................................6-10
7. AUTOCLEAN THEORY AND PIPING..................................................................... 7-1
7.1 Overview ........................................................................................................................................ 7-1
Introduction ....................................................................................................................................................7-1
What’s in this section?....................................................................................................................................7-1
7.2 AutoClean Sequence and Piping.................................................................................................... 7-2
Rinse sequence................................................................................................................................................7-2
Select valves and fittings with appropriate pressure ratings............................................................................7-3
Minimize liquid volume in system..................................................................................................................7-3
6/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual vii
8. CALIBRATION ........................................................................................................ 8-1
8.1 Overview ........................................................................................................................................ 8-1
Introduction ....................................................................................................................................................8-1
What’s in this section?....................................................................................................................................8-1
Calibration menu customized for different configurations..............................................................................8-1
8.2 Recommendations for Successful Measurement and Calibration.................................................. 8-3
Selection and care of cell essential.................................................................................................................8-3
Recommendations...........................................................................................................................................8-3
8.3 Entering the Cal Factor for Each Cell............................................................................................ 8-4
Introduction ....................................................................................................................................................8-4
Procedure........................................................................................................................................................8-4
8.4 Performing Calibration Trim.......................................................................................................... 8-5
Introduction ....................................................................................................................................................8-5
8.5 Removing Calibration Trim Values............................................................................................... 8-7
Introduction ....................................................................................................................................................8-7
Procedure........................................................................................................................................................8-7
8.6 Determining and Entering the TDS Conversion Factor................................................................. 8-8
Introduction ....................................................................................................................................................8-8
Determining TDS conversion factor...............................................................................................................8-8
Out-of range-values forced to closest limit.....................................................................................................8-8
Calibrate the Analyzer/Controller before entering TDS conversion factor.....................................................8-8
Procedure........................................................................................................................................................8-9
9. DIAGNOSTICS AND MESSAGES .......................................................................... 9-1
9.1 Overview ........................................................................................................................................ 9-1
Introduction ....................................................................................................................................................9-1
What’s in this section?....................................................................................................................................9-1
9.2 System Status Messages................................................................................................................. 9-2
Related to operation of Analyzer/Controller...................................................................................................9-2
9.3 Process Alarm Messages................................................................................................................ 9-3
Alarms dependent on configuration................................................................................................................9-3
9.4 On-Line Diagnostics and System Error Messages......................................................................... 9-4
Self-tests at 0.5 second intervals.....................................................................................................................9-4
Output affected by error..................................................................................................................................9-4
9.5 Off-Line Diagnostics...................................................................................................................... 9-5
Introduction ....................................................................................................................................................9-5
9.5.1 Display and Keyboard Test................................................................................................... 9-5
Procedure........................................................................................................................................................9-5
9.5.2 Output Tests .......................................................................................................................... 9-7
Procedure........................................................................................................................................................9-7
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99viii
10. MAINTENANCE................................................................................................... 10-1
10.1 Overview .................................................................................................................................... 10-1
Introduction ..................................................................................................................................................10-1
What’s in this section?..................................................................................................................................10-1
10.2 Output Calibration...................................................................................................................... 10-3
Introduction ..................................................................................................................................................10-3
Required equipment......................................................................................................................................10-3
Procedure......................................................................................................................................................10-3
10.3 Specifying a Tagname or Other Display String......................................................................... 10-6
Introduction ..................................................................................................................................................10-6
Procedure......................................................................................................................................................10-6
10.4 Viewing Product Information and Changing Model Number Stored in Memory...................... 10-7
Introduction ..................................................................................................................................................10-7
Procedure......................................................................................................................................................10-7
10.5 Adjusting the Screen Contrast.................................................................................................... 10-9
Introduction ..................................................................................................................................................10-9
Procedure......................................................................................................................................................10-9
10.6 Entering a Password for Security............................................................................................. 10-10
Introduction ................................................................................................................................................10-10
Procedure....................................................................................................................................................10-10
10.7 Resetting All Configuration and Calibration Values to Factory Settings................................10-11
Introduction ................................................................................................................................................10-11
Procedure....................................................................................................................................................10-11
10.8 Entering Values for Lead Resistance Compensation (Wide Range Only)............................... 10-12
Introduction ................................................................................................................................................10-12
Procedure....................................................................................................................................................10-14
10.9 Replacing the Fuse ................................................................................................................... 10-15
Introduction ................................................................................................................................................10-15
Procedure....................................................................................................................................................10-15
11. ACCESSORIES AND REPLACEMENT PARTS LIST ........................................ 11-1
11.1 Overview .................................................................................................................................... 11-1
Introduction ..................................................................................................................................................11-1
What’s in this section?..................................................................................................................................11-1
11.2 Part Numbers.............................................................................................................................. 11-2
Introduction ..................................................................................................................................................11-2
APPENDIX A PROPORTIONAL CONTROL TUNING................................................A-1
Adjust effective proportional band width ......................................................................................................A-1
Treatment takes too long, but no unacceptable overshoot .............................................................................A-1
Unacceptable overshoot.................................................................................................................................A-1
6/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual ix
APPENDIX B TWO-CELL APPLICATIONS................................................................B-1
Ion Exchange.................................................................................................................................................B-1
Reverse Osmosis............................................................................................................................................B-1
Conductivity/Resistivity/TDS Difference......................................................................................................B-2
Parts Rinsing..................................................................................................................................................B-2
Softener Monitoring.......................................................................................................................................B-3
Steam Power Measurements..........................................................................................................................B-3
Sodium Hydroxide & Hydrochloric Acid Concentration Measurements.......................................................B-4
APPENDIX C MICROPROCESSOR BOARD SWITCH SETTINGS ...........................C-1
Introduction ...................................................................................................................................................C-1
Location of switches ......................................................................................................................................C-1
SW1 - all positions set to off .........................................................................................................................C-1
SW2 - settings are dependent on options.......................................................................................................C-1
APPENDIX D USING A PRECISION CHECK RESISTOR..........................................D-1
Introduction ...................................................................................................................................................D-1
Set cal factor and calibration trim for ideal conditions..................................................................................D-1
Calculations for conductivity, resistivity, and TDS.......................................................................................D-1
Concentration values......................................................................................................................................D-2
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99x
Tables
Table 1-1 Key Functions.......................................................................................................................... 1-6
Table 1-2 9782 Conductivity/Resistivity Analyzer/Controller Menu Hierarchy................................... 1-11
Table 1-3 Available Combinations of Relay Assigments ...................................................................... 1-15
Table 1-4 Overview of Analyzer/Controller Installation Tasks............................................................. 1-17
Table 3-1 Procedure for Unpacking and Preparing the 9782................................................................... 3-2
Table 4-1 Procedure for Installing AC Power Wiring.............................................................................4-4
Table 5-1 Procedure for Performing I/O Setup........................................................................................ 5-6
Table 5-2 Procedure for Configuring CAT Control and/or Retransmission of Process Variables........ 5-10
Table 5-3 Procedure for Configuring On/Off Control...........................................................................5-13
Table 5-4 Procedure for Configuring PFT Control................................................................................5-14
Table 5-5 Procedure for Configuring DAT Control............................................................................... 5-15
Table 5-6 Procedure for Configuring Alarms........................................................................................ 5-16
Table 5-7 Procedure for Setting the Clock.............................................................................................5-17
Table 5-8 Procedure for Configuring AutoClean................................................................................... 5-19
Table 5-9 Procedure for Specifying a Computed Value........................................................................5-21
Table 5-10 Menu Choices and System Defaults....................................................................................5-23
Table 6-1 Recommended Maximum Wire Size ....................................................................................... 6-3
Table 6-2 Procedure for Installing Analog I/O Wiring............................................................................ 6-5
Table 6-3 Relay Contact Maximum Ratings............................................................................................ 6-7
Table 6-4 Procedure for Wiring Relays................................................................................................... 6-8
Table 6-5 Procedure for Disconnecting RC Arc Suppression Circuits.................................................... 6-9
Table 8-1 Procedure for Entering Cal Factor...........................................................................................8-4
Table 8-2 Conductivity of Potassium Chloride Solutions at 25 °C ......................................................... 8-5
Table 8-3 Procedure for Performing Calibration Trim Using a Reference Solution............................... 8-6
Table 8-4 Procedure for Removing Calibration Trim Values.................................................................. 8-7
Table 8-5 Procedure for Entering TDS Conversion Factor...................................................................... 8-9
Table 9-1 System Status Message............................................................................................................ 9-2
Table 9-2 Process Alarm Messages.......................................................................................................... 9-3
Table 9-3 On-Line Diagnostics and System Error Messages................................................................... 9-4
Table 9-4 Procedure For Initiating Display and Keyboard Tests............................................................. 9-5
Table 9-5 Procedure for Testing Relays and Analog Outputs ................................................................. 9-7
Table 10-1 Procedure for Calibrating Outputs....................................................................................... 10-4
Table 10-2 Procedure for Specifying a Tagname or Other Display String............................................ 10-6
Table 10-3 Procedure for Viewing Product Information and Changing the Stored Model Number....10-7
Table 10-4 Procedure for Adjusting the Screen Contrast ...................................................................... 10-9
Table 10-5 Procedure for Entering a Password.................................................................................... 10-10
Table 10-6 Procedure for Resetting All Configuration to Factory Settings......................................... 10-11
Table 10-7 Procedure for Entering Values for Lead Resistance Compensation.................................. 10-14
6/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual xi
Table 10-8 Procedure for Replacing the Fuse...................................................................................... 10-16
Table 11-1 Part Numbers ....................................................................................................................... 11-2
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99xii
Figures
Figure 1-1 9782 Front Panel..................................................................................................................... 1-5
Figure 1-2 Representative Process Value Display for a Cell in Standard Range Analyzer..................... 1-8
Figure 1-3 Representative Combined Display ......................................................................................... 1-9
Figure 1-4 Representative Computed Value Display...............................................................................1-9
Figure 1-5 AutoClean Display ............................................................................................................... 1-10
Figure 3-1 Sample Nameplate.................................................................................................................. 3-3
Figure 3-2-1 Mounting and Dimensions - Non-Backlit Display Option.................................................. 3-4
Figure 3-2-2 Mounting and Dimensions - Non-Backlit Display Option.................................................. 3-4
Figure 3-3-1 Mounting and Dimensions - Backlit Display Option.......................................................... 3-4
Figure 3-3-2 Mounting and Dimensions - Backlit Display Option.......................................................... 3-4
Figure 4-1 AC Power Terminals.............................................................................................................. 4-5
Figure 6-1 Terminal Connections............................................................................................................. 6-6
Figure 6-2 Sample Multipoint Recorder Chart Illustrating Auto Output Range Change for Steam
Condensate Monitoring.................................................................................................................... 6-10
Figure 6-3 Interconnections between 9782 and Recorder with Range Identification by Point Change 6-11
Figure 7-1 Automatic Cell Wash Setup................................................................................................... 7-3
Figure 10-1 Example of a Conductivity Loop...................................................................................... 10-14
Figure 10-2 Location of Power Fuse.................................................................................................... 10-18
6/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual xiii
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 6/99xiv
1.1 Description
Multi-function instrument
The Honeywell 9782 Conductivity/Resistivity Analyzer/Controller (Figure 1-1) is a
microprocessor-based instrument for analysis of conductivity, resistivity, total dissolved solids,
or concentration in industrial processes. The resolution for all measurements is +/- 0.5% of
reading (except for temperature; see below). The units of measure are:
• conductivity: microSiemens per centimeter, microSiemens per meter, or milliSiemens per
centimeter
• resistivity: megohms or kilohms
• TDS: PPT, PPM or PPB
• concentration: percent by weight
Introduction
1. Introduction
• temperature: resolution 0.1% for 0 to 99.9 °C, and 1 C° for 100 C° and higher
User interface
An easy-to-read display provides instant access to process values. The displays of process values
show the instrument’s tagname (or other configurable text) at the top of the screen.
Every display includes an “alarm stripe”, a line dedicated to displaying process alarm messages,
status messages, and system diagnostic messages, whenever any are active. (One or more relays
can also be used for alarm annunciation; see 1.5.2.)
Dedicated-function membrane keys to the right of the display on the front panel are used to:
• cycle through the displays of real-time values
• access configuration, calibration, and maintenance menus
• change and enter setpoints and other parameters
In addition, three variable function keys are below the display. The function of each of these
“soft keys” depends on the purpose of the screen currently on display. Soft key labels are always
displayed at the bottom of the screen, immediately above the relevant function key.
Easy to configure
Menu-driven configuration is fast and easy. Only configuration parameters related to features
supported by the hardware and relevant to the specific application are displayed.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual
1-1
Conductivity/Resistivity Analyzer/Controller
Input
Input to the 9782 can be from any Honeywell conductivity cell at distances up to 1500 feet.
Outputs
Optional isolated 0 to 1 V, 0 to 10 V and 4 to 20 mA outputs are available. Use these analog
outputs for retransmission of process variables, or for Current Adjusting Type control using an
output signal that is directly proportional to the input (see 1.5.3).
Relays
Two 2A SPDT alarm/control relays are standard, with an additional two 3A relays (either general
purpose or hermetically sealed) available as an option (see Sub-Section 2.17). These relays can
be used to:
• take advantage of special features such as automatic cleaning of cells
• control process variables (see 1.5.3)
• annunciate alarms
More details about use of relays are provided in 1.5.2.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-2
1.2 Features
Automatic cell washing
The standard AutoClean feature can periodically rinse cells automatically. The schedule and
duration of the operation are configurable. An internal relay actuates external solenoid valves to
control the flow of rinse water to the cells.
Computed values
The Analyzer/Controller can calculate and display your choice of the following values:
• ratio of the two cell inputs
• difference between two cell inputs
• percent passage
• percent rejection
• parts per million carbon dioxide (9782C-S0 only)
The equations used are in the specifications in Section 2.
Introduction
Automatic range scaling
The Analyzer/Controller supports automatic range scaling of the output. If this feature is
enabled, then when the measured value falls below 10% of the output scaling limit, the output is
scaled by a factor of 10. An internal relay can be dedicated to this function. The relay closes
contacts
NC-COM when the output is scaled to the low range, and closes contacts NO-COM when the
range shift occurs. The relay can be used to control an indicator or to switch the output to a
second channel of a multipoint recorder when the range change occurs.
This output range scaling has no effect on the display. Display scaling is specified independent
of output scaling.
Password protection
A password (up to four digits) can be configured. If the security feature is enabled, the password
will be required to access configuration, calibration, and maintenance software functions.
Extensive diagnostics
The 9782 Analyzer/Controller performs extensive self-diagnostics as a background task during
normal operation. If a problem is detected, a message is displayed on the alarm stripe to alert the
operator. In addition, the operator can initiate keypad and display tests using Maintenance Menu
functions.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual
1-3
Conductivity/Resistivity Analyzer/Controller
Watertight corrosion-resistant case
The 9782 is enclosed in a watertight and corrosion resistant industrial case, designed for panel,
pipe or wall mounting. It has an EMI/RFI shielded plastic case.
Solution Temperature Compensation
There are two types of 9782C Analyzer/Controller models: standard range and wide range. Both
types provide temperature compensation as described below. The standard range
Analyzer/Controller is ideal for high-purity water applications. The wide range
Analyzer/Controller is suitable for chemical solutions.
To take advantage of the temperature compensation capabilities, the appropriate solution
temperature compensation type must be entered for each cell as described in Section 5.
Standard Range - A standard range 9782 Analyzer/Controller provides true high purity
temperature compensation for deionized water as well as for routine applications. The
Analyzer/Controller also employs unique compensation algorithms for the highest accuracy in
power industry water treatment using ammonia or morpholine, as well as for cation conductivity
samples. Semiconductor resistivity measurements on acid etch rinse operations, especially with
hot deionized water, also achieve the highest available accuracy. For pharmaceutical
applications, raw conductivity data is available at the touch of a button.
For high-purity water special temperature compensation is required in the range of 0.055 to 5
microsiemens/cm per 0.2 to 18 Megohms-cm. Traditional compensation techniques used in most
analog instruments require temperature compensator selection for a reference conductivity
represented by a single curve. This method lacks the capability to accurately reflect the changing
temperature coefficient of water for variations in temperature and conductivity on either side of
that reference value. Advanced high-purity water temperature compensation determines the
conductivity of an impurity at any concentration of water at any temperature, and the interaction
between the two. It compensates these values to obtain the conductivity referenced to 25 °C.
Because the temperature coefficients involved are both high and variable, a precise temperature
measurement is required to achieve accurate compensation. To accomplish this the 9782
Analyzer/Controller first makes precise temperature measurements over a wide range, even with
long sensor leads. Second, an accurate conductivity measurement is assured by use of the cell
constant trim factor. Third, internal high resolution algorithms are used to make exact highpurity water calculations. This high level of performance in an inexpensive, yet highly reliable
instrument is the result of over seventy years of experience in making industrial conductivity
measurements.
For power plant cation/ammonia conductivity measurements temperature compensation provides
the highest accuracy for measurements of cation exchanger effluent and acidic cation
conductivity samples with Larson Lane-type analyzers.
This compensation matches both strong inorganic and weak organic acid temperature
characteristics. Measurements of steam and condensate samples containing ammonia are also
greatly improved using this algorithm.
For power plant morphonline conductivity measurements temperature compensation was
developed specifically for this market’s water chemistry. Morpholine has unique temperature
characteristics that are handled automatically by the 9782 Analyzer/Controller.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-4
Introduction
For semiconductor etch rinse resistivity measurements temperature compensation provides the
most accurate measurements of used rinsewater containing traces of acidic etchants. Rinse
quality control and water reclamation monitoring can be made with greater precision when this
compensation is used.
Wide Range - A wide range Analyzer/Controller uses precise algorithms to compute
temperature-compensated conductivity, total dissolved solids (TDS), or concentration for display
and output, based on conductivity and temperature inputs. The wide range instruments are ideal
for controlling deionizer and softener regenerant dilutions. Full spectrum temperature
compensation, specifically for sodium hydroxide, sulfuric acid, hydrochloric acid and sodium
chloride, automatically provides exact correction of temperature influences as they vary with
both concentration and temperature. Readout in conductivity or ppm TDS units may also be
selected.
+RQH\ZHOO
+RQH\ZHOO
Figure 1-1 9782 Front Panel
F1
F2
F2
F3
F3
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Conductivity/Resistivity Analyzer/Controller
1.3 Operating the Analyzer/Controller
1.3.1 Keypad Use
Front panel keys used for all operator tasks
As shown in Figure 1-1, five keys with dedicated functions are on the front panel. In addition,
three “soft keys” vary their function according to the needs of the screen on display. Use of the
keys is described in Table 1-1.
Table 1-1 Key Functions
Key Name Use
DISPLAY When process values are on display: Use DISPLAY to cycle
through available real-time displays.
When the main menu (Configuration, Calibration,
Maintenance, I/O Setup) is on display: Use DISPLAY to
return to displaying process values.
MENU When process values are on display: Use MENU to access
the menus. If the security feature is enabled, the display will
prompt for entry of the password before access to the menus
is permitted. (Enter the password using the procedure for
editing a parameter numeric value as described on the next
page.)
F1
When any menu or configuration screen is on display: Use
MENU to go up a level in the display hierarchy. Frequently this
means returning to the main menu.
UP When a menu or configuration screen is on display: Use
UP to highlight a different item.
When changing a numerical value: Use UP key to increment
the value of the digit at the cursor.
DOWN When a menu or configuration screen is on display: Use
DOWN to highlight a different item.
When changing a numerical value: Use DOWN to
decrement the value of the digit at the cursor.
ENTER When a menu item is highlighted: Use ENTER to select it.
When editing a parameter: Use ENTER to save the new
value.
F1, F2, F3
[function
keys]
When a “soft key” label is displayed below the alarm
stripe: Use the function key directly below the label to perform
the action.
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Selecting a parameter for edit
To select a parameter for edit:
• display the screen containing the parameter
• use the UP or DOWN keys to highlight the parameter name
• press the ENTER key to highlight the displayed current value
Editing a parameter assignment from a list of available choices
To edit a parameter having a text string as an assigned value:
• select the parameter and highlight its current value as described above
• use the UP or DOWN keys to display the other valid choices
• when your choice is displayed, press ENTER
Editing a parameter numeric value
To edit a parameter having a numeric value:
• select the parameter and highlight its current value as described above; the “DPP”, ←
and → soft keys will be displayed (During calibration the ← and → soft keys will be
displayed once the UP or DOWN key has been pressed.)
Introduction
• use the “DPP” soft key to position the decimal point
• use the ← or → soft keys to move the cursor to the digit to be changed
• use the UP and DOWN keys to increment or decrement the value
• when all digits necessary have been changed, press ENTER
Controlling an AutoClean operation manually
To initiate an AutoClean operation manually, press the DISPLAY key until the AutoClean
screen is displayed. Next press the “START” soft key.
This display can also be used to see how much time is remaining until the next scheduled
AutoClean operation. When AutoClean is active, the alarm stripe will display “AUTO CLEAN”,
and the AutoClean display will show 00:00:00.
If necessary, pause the operation using the “PAUSE” soft key. To resume the operation, press
“PAUSE” again. To cancel the operation, use the “STOP” soft key. If pause is left on, the
sequence will resume automatically after twenty minutes.
At the start of the AutoClean operation alarms and outputs will be held at current levels,
regardless of whether the AutoClean was scheduled or started manually. The alarms and outputs
will be held throughout the AutoClean operation.
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1.3.2 Online Displays
Introduction
The online displays available when the operator presses the DISPLAY key depend on the
number of cells connected to the Analyzer/Controller, and on the special features used. The
instrument’s tagname (or other configurable text) is at the top of the screen for all displays
except the digital clock and the AutoClean Sequence display. Every display includes an “alarm
stripe”, a line dedicated to displaying process alarm messages, status messages, and system
diagnostic messages, whenever any are active.
Individual cell display
For each cell connected to the Analyzer/Controller an online display similar to Figure 1-2 is
provided. The information on this display includes:
• the value measured by the cell, with the appropriate unit of measure filled in
• an indication of whether the value is temperature compensated (TC) or not
compensated (NC); the display can be toggled between displaying compensated and
raw data using the F1 function key
• the temperature in °C
• if the value displayed is a percent concentration (9782C-W0 only), the chemical will
be identified above the alarm stripe
In addition of the function key used to toggle the temperature compensation display, function
keys are available to access calibration displays (without going through the menus), and to
acknowledge alarm stripe messages.
CONDENSATE T105
TC
8.59
25. 2°C
ALARM STRIPE
NC CAL ACK
Figure 1-2 Representative Process Value Display for a Cell in Standard Range Analyzer
C1
µS
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-8
Combined display
If two cells are connected to the Analyzer/Controller, then a display is available that includes the
measured variable for both cells (see Figure 1-3). Another combined display also includes the
temperature measured by each cell.
Introduction
MIXED BEDS 1 AND 2
TC
C1 0.58 µS
C2 0.25 µS
ALARM STRIPE
NC CAL ACK
Figure 1-3 Representative Combined Display
Computed value
If the Analyzer/Controller is configured to calculate a computed value such as the ratio between
the cells’ readings, a screen will be available to display the value, along with a label (see Figure
1-4).
CATION TRAIN A
0.67
RATI O
ALARM STRIPE
NC CAL ACK
Figure 1-4 Representative Computed Value Display
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Conductivity/Resistivity Analyzer/Controller
Clock and AutoClean
If the 24-hour clock is turned on, a time display will be available. If AutoClean is configured,
then the AutoClean screen will be included in the display cycle (see Figure 1-5). When
AutoClean is active, the screen will display the time remaining. When this screen is on display,
the function keys can be used to control the AutoClean operation as described in 1.3.1.
START PAUSE STOP
AUTO CLEAN
TIME RE MAINING
01: 58:29
ALARM STRIPE
Figure 1-5 AutoClean Display
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-10
1.4 Menu Hierarchy
Menus for every task
For your convenience, menus are provided for configuration, calibration, maintenance, and I/O
setup tasks. The menu hierarchy is shown in Table 1-2. Not every menu item applies to every
system.
Table 1-2 9782 Conductivity/Resistivity Analyzer/Controller Menu Hierarchy
Menu Item Purpose Where
Introduction
Described
CONFIGURATION
CAT/RETRANSMISSION configure parameters for using analog
ALARMS specify value to be alarmed, alarm
DISCRETE CONTROL specify setpoints, range limits, etc. to use
ADVANCED FEATURES set the clock, set up automatic cell
CALIBRATION
CELL CAL FACTOR enter cell-specific cal factor 8.3
CALIBRATION TRIM calibrate system using a reference solution
TDS CONVERSION FACTOR C1
TDS CONVERSION FACTOR C2
set up Analyzer/Controller to implement
your alarm and control strategy
outputs for control and retransmission of
process values
setpoints, deadbands, and delay
relays for control
cleaning, and specify the computed value
to be displayed
calibration functions Section 8
with each cell; remove trim
enter a process-specific total dissolved
solids conversion factor for each cell
Section 5
5.4
5.6
5.5
5.7, 5.8, 5.9
8.4, 8.5
8.6
Table 1-2 continued on next page
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Conductivity/Resistivity Analyzer/Controller
Table 1-2 9782 Conductivity/Resistivity Analyzer/Controller Menu Hierarchy
Menu Item Purpose Where
Described
MAINTENANCE
OFF-LINE FUNCTIONS
INSTRUMENT SETUP
do occasional system tasks Sections 9 and
10
[see functions listed below] [see below]
DISPLAY TEST test display 9.5.1
KEYBOARD TEST test keyboard 9.5.1
OUTPUT TESTS test relays and analog outputs 9.5.2
OUTPUT CALIBRATION calibrate outputs electrically 10.2
[see functions listed below] [see below]
INSTRUMENT TAGGING configure tagname or other text to be
displayed at the top of the screen
PRODUCT INFORMATION view software version and stored model
number; if a special technical support
password is known, alter model number in
memory (in case of hardware upgrades)
SCREEN CONTRAST adjust display contrast 10.5
SECURITY assign password to limit access to
configuration, calibration, and maintenance
functions
RESET UNIT reset all configuration and calibration
values back to factory settings
10.3
10.4
10.6
10.7
I/O SETUP
LEAD RESISTANCE COMP
[wide range models only]
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-12
specify wire gauge and length when long
leads are used; instrument will compensate
for these long leads
choose features, make relay and analog
output assignments
10.8
5.3
1.5 Planning
1.5.1 Overview
Configuration system minimizes decisions
The 9782C Analyzer/Controller was designed for easy configuration using menu displays and the
keys on the front panel. Numeric values such as setpoints and range limits are easy to enter using
the UP and DOWN keys and function keys (see 1.3). Other configuration parameter
assignments are selected by scrolling through a list of available choices using the UP and
DOWN keys.
During configuration only those parameters and choices relevant to features supported by your
Analyzer/Controller’s hardware will be available for configuration. For example, if the model
purchased does not contain hardware for the optional analog outputs, then none of the screens
relating to output configuration will be applicable.
Although configuration is a simple process, to make best use of the 9782C Analyzer/Controller
and its features, a little advance planning is recommended.
Introduction
1.5.2 Using Relays
Relays assigned during I/O setup
Every 9782 model includes two internal relays. Two more relays are available as an option.
During I/O setup (see 5.3) the 9782’s software will assign relays to the features you select. The
design of the Analyzer/Controller allows multiple alarms to be assigned to one relay, allowing
greater flexibility with fewer relays. All other 9782 features using relays (AutoClean, range
status indication, and discrete control) require one relay per instance of the feature. You will not
be permitted to select features requiring more that the available number of relays.
Once a relay has been dedicated to a function, the relay will not be available for assignment to
another function. In order to get the most functionality from the available relays, plan your
strategy before implementation. The order in which features are presented (during I/O setup) for
relay assignment is:
1. Cell 1 “Advanced Features” AutoClean and range status indication
2. discrete control (both cells)
3. alarm annunciation (both cells), and Cell 2 AutoClean and range status
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Conductivity/Resistivity Analyzer/Controller
Interactions affecting permitted relay assignments
Table 1-3 is provided so that you can optimize your use of relays to implement your control
strategy. Each row in the table represents an available combination of relay assignments for a
single feature or multiple alarms.
ATTENTION
AutoClean and range status indication cannot be selected for use with two cells simultaneously.
Your choices are:
•
For Cell 1 only, use AutoClean (Relay 1) and/or range status indication (Relay 2).
•
For both Cell 1 and Cell 2, use AutoClean (Relays 1 and 3), with no range status indication,
nor any discrete control.
•
For both Cell 1 and Cell 2, use range status indication (Relays 2 and 4), with no AutoClean,
nor any discrete control.
When reading the tables keep in mind the following:
• The entry “Diagnostic” in the tables indicates that the relay can be used to indicate the
unit’s failure of a self-test (see 9.4).
• The entry “or discrete control” means that the relay can be assigned to discrete control
or to one alarm. If the relay is selected for discrete control, then the alarm choice
sharing the cell in the table with “or discrete control” will not be available in that
row’s combination of relay assignments.
• If the Analyzer/Controller has only two relays, then only the choices for Relay 1 and
Relay 2 will be available.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-14
Introduction
Table 1-3 Available Combinations of Relay Assigments
Features Used Relay 1 Relay 2 Relay 3 Relay 4
Alarm 1Alarm 2Alarm 3Alarm 4
Alarm 1 and Diagnostic Alarm 2 Alarm 3 Alarm 4
Alarms Only
Discrete Control
and Alarms
Range Status
and Alarms
Range Status,
Discrete Control
and Alarms
Alarm 1 Alarm 2 and Diagnostic Alarm 3 Alarm 4
Alarm 1 Alarm 2 and Alarm 4 Alarm 3 Alarm 2 and Alarm 4
Alarm 1 and Alarm 2 Al arm 3 and Alarm 4 Alarm 1 and Alarm 2 Alarm 3 and Alarm 4
Alarm 1
Alarm 1 and Diagnostic
Alarm 1
Alarm 1
Alarm 1 Cell 1 Range St atus Alarm 3 Alarm 4
Alarm 1 and Alarm 2 Cell 1 Range S tatus Alarm 3 Alarm 4
Alarm 1 and Diagnostic Cell 1 Range Status Alarm 3 Alarm 4
Alarm 1 and 2 and 3 and 4 Cell 1 Range Status Alarm 1 and 2 and 3 and 4 Cell 2 Range Status
Alarm 1 and 2 and 3 and 4
and Diagnostic
Alarm 1
Alarm 1 and Alarm 2 Cell 1 Range S tatus
Alarm 1 and Diagnostic Cell 1 Range Status
or discrete control
or discrete control
or discrete control
or discrete control
Alarm 2
Alarm 2
Alarm 2 and Diagnostic
Alarm 2 and Alarm 4
Cell 1 Range Status A l arm 1 and 2 and 3 and 4
Cell 1 Range Status
or discrete control
or discrete control
Alarm 3
or discrete control
Alarm 3
or discrete control
or discrete control
Alarm 3
or discrete control
Alarm 3
and Diagnostic
or discrete control
Alarm 3
Alarm 3
or discrete control
Alarm 3
or discrete control
Alarm 4
Alarm 4
Alarm 4
Alarm 2 and Alarm 4
Cell 2 Range Status
Alarm 4
Alarm 4
Alarm 4
or discrete control
or discrete control
or discrete control
or discrete control
or discrete control
or discrete control
AutoClean, Range
Status, and Alarms
With or Without
Discrete Control
AutoClean
and Alarms
AutoClean,
Discrete Control,
and Alarms
AutoClean Cell 1 Range Status
AutoClean Cell 1 Range Status Alarm 2 and 3 and
AutoClean Alarm 2 Alarm 3 Alarm 4
AutoClean Alarm 2 and Diagnostic Alarm 3 Alarm 4
AutoClean Alarm 2 and 3 and 4 AutoClean Alarm 2 and 3 and 4
AutoClean Alarm 2 and 3 and 4 and
AutoClean
AutoClean Alarm 2 and Diagnosti c
Diagnostic
Alarm 2
or discrete control
Alarm 3
or discrete control
Diagnostic
AutoClean Alarm 2 and 3 and 4 and
Alarm 3
or discrete control
Alarm 3
or discrete control
Alarm 4
Alarm 4
Diagnostic
Alarm 4
Alarm 4
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or discrete control
or discrete control
or discrete control
or discrete control
1-15
Conductivity/Resistivity Analyzer/Controller
1.5.3 Deciding on a Control Strategy
All 9782 models can use relays for control
All 9782 models have at least two relays. (Two more relays are optional.) Unless dedicated to
other functions, these relays can be used to control process variables using the three types of
discrete control available.
• On/Off Control using one to four cycle timers with configurable setpoint, deadband,
cycle period, and “on” time.
• PFT (Pulse Frequency Type) Proportional-Only Control using one to four relays. The
pulse output is generated by repeated relay contact opening and closure. The frequency
of the pulse is proportional to the deviation from the configurable setpoint. The
proportional band limit and maximum pulse frequency rate are also configurable. This
type of output is used to control such devices as pulse-type electronic metering pumps.
• DAT (Duration Adjusting Type) Proportional-Only Control using one to four relays.
Also known as time-proportioned control, DAT cycles a relay output on and off,
varying the “on” time in proportion to the deviation from setpoint. This type of output
is used to control devices such as solenoid valves.
Optional analog outputs for control
Up to three analog outputs are available as options. These current or voltage outputs can be used
to retransmit a process variable using an output signal that has been scaled. An analog output
that is directly proportional to an input can be used for Current Adjusting Type (CAT) control.
(Despite the name of this control type, voltage outputs can also be used.)
When an output is used to retransmit a process variable, the values representing 0 and 100%
outputs are configurable.
In CAT control the process values for the setpoint and proportional band limit are configurable.
Selecting a strategy
When considering whether to use On/Off control or one of the proportional-only strategies,
compare the requirements of your application with the benefits of each control type.
Proportional control will usually provide faster batch treatment with less overshoot than On/Off
control. However, it is important to note that proportional-only control is recommended only for
batch processes and for pretreatment in continuous neutralization systems.
Proportional-only control does not include any reset action. As a result, changes in reagent
demand that occur in continuous processes are not accommodated and control will not reach the
setpoint. In a batch process, reagent is added until a setpoint is reached and the batch is not
emptied until this occurs.
If you decide to use proportional-only control, select the type based on the input requirements of
the device to be controlled. See Appendix A for a discussion of tuning proportional-only control.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-16
1.6 Overview of Installation and Setup Tasks
Setup tasks described in this manual
This manual contains instructions for all installation and operation tasks relating to the
Analyzer/Controller. (Instructions for installing and using the cells are provided in the manuals
supplied with the cells.) Table 1-3 provides an overview of the Analyzer/Controller installation
tasks, as well as providing references to the relevant sections of the manual.
Table 1-4 Overview of Analyzer/Controller Installation Tasks
Sequence Task Section
Introduction
1
2
3
4
5
6
7
8
9
10
Consider the environmental and electrical specs when
selecting a site to install the Analyzer/Controller.
Unpack, inspect and mount the unit. 3
Check tag to confirm that unit is compatible with the voltage at
your site.
Install power wiring. 4
Perform I/O setup and configure the software to implement
your control strategy.
Wire inputs and outputs to match I/O setup in Step 5. 6
If AutoClean will be used, install necessary piping and valves. 7
Configure a tagname or other text string to be displayed at the
top of the screens showing real-time process values.
To limit access to I/O setup, configuration, calibration, and
maintenance functions, enter a password.
Display model number stored in memory and software version
number. Note these for future reference. (If you call for
technical assistance, you will need this information.)
10
10
10
2
4
5
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Conductivity/Resistivity Analyzer/Controller
The manual also contains:
• information about diagnostics, status messages, and system error messages
(Section 9)
• instructions for returning all parameter values to the factory settings (Section 10)
• instructions for calibrating the outputs and changing the fuse (Section 10)
• parts list (Section 11)
• supplementary information for special applications and proportional control tuning tips
(appendices).
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/991-18
2. Specifications and Model Number
2.1 Specifications
2.1.1 User Interface
Display
LCD dot matrix display, 128 by 64 dpi. Backlit: solid state LED. Displays Cell 1 and Cell 2
values in terms of conductivity, resistivity, concentration, or TDS (temperature compensated or
not compensated); Cell 1 and Cell 2 temperature; computed value (if enabled); time (if clock is
enabled); time remaining in AutoClean cycle (if feature is configuration); alarm conditions, and
diagnostics.
Alarm messages, status messages, and diagnostic messages are available on all displays.
Keypad
Specifications and Model Number
Monoplanar front panel with 8 keys. Push-button entry with tactile feedback.
2.1.2 Physical
Case
Gray Noryl plastic, NEMA 4X/IP55 Rainproof and Outdoor. Interior conductive coating to
provide effective RFI/EMI shielding.
Case Dimensions
156 x 156 x 178 mm (6 1/8 x 6 1/8 x 7 in.); panel cutout 141 x 141 mm (5.53 x 5.53 in.).
Weight
1.8 kg (4 lb).
Mounting
Panel mounting hardware supplied. Surface and pipe mounting hardware available. See Figure
3-2 or the Parts List.
2.1.3 Compliance
FM/CSA
This product has FM and CSA Hazardous Location Approval for Class I, Div. 2, Groups A, B, C
and D classified areas.
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CE conformity
This product is in conformance with the protection requirements of the following European
Council Directives: 89/336/EEC, the Electromag netic Compatibility Directive and 73/23/EEC,
the Low Voltage Directive. Conformance of this product with any other “CE Mark” Directive(s)
shall not be assumed.
Year 2000
This instrument will be unaffected by the occurrence of the year 2000.
2.1.4 Electrical
Power Requirements
120 +/- 10% Vac, 47-63 Hz, 15 VA.
240 +/- 10% Vac, 47-63 Hz, 15 VA.
Memory retained by EEPROM when power is off.
Fuse Rating
120V operation : 0.25 amp/250V
240V operation: 0.125 amp/250V
2.1.5 Model Ranges
Standard range models
Conductivity
(microsiemens/cm)
0-1.999*
0-19.99*
0-199.9*
0-1,999
0-19,990
* Equivalent µS/m ranges also available.
** For power plant degassed cation conductivity measurements.
*** Recommended cell constant for most power plant applications.
Standard Display Ranges: 9782C-S0
TDS** Resistivity (ohms-cm) Cell Constant Required
(cm-1)
0-1,999 ppb
1-19,990 ppb
0-199.9 ppm
0-1,999 ppm
0-10,000 ppm
0-19.99M
0-1.999M
0-199.9K
0-19.99K
0-1.999k
0.01
0.1***
1.0
10
25 or 50
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/992-2
Wide range models
Conductivity (microsiemens/cm) TDS Cell Constant Required (cm-1)
100-1,999 0-1,999 ppm 0.1
1000-19,990 0-19,990 ppm 1
Conductivity (millisiemens/cm)
Concentration
0-18.00% Hydrochloric Acid* 50**
0-19.99% Sulfuric Acid 50**
0-19.99% Sodium Hydroxide* 25** ro 50
Specifications and Model Number
Wide Display Ranges: 9782C-W0
10-199.9 0-199.9 ppt 10
10-500 —25
20-1,000 — 50
0-19.99% Sodium Chloride 25** or 50
* The maximum concentration measurable by conductivity depends on temperature. Maximum
for sodium hydroxide allowed by the 9782 Analyzer is 10% at 0º C, 13% at 25º C and 20% at
75º C with linear interpolation between these points. The maximum concentration for
hydrochloric acid is 15.5% above 40º C.
** Measurements in the lower half of the concentration ranges and below 50º C may also use
the next lower available cell constant.
2.1.6 Operating Conditions
Operating Conditions
Ambient Temperature: Normal 0 to 60 °C (32 to 140 °F), extreme -10 to +60 °C (14 to 140 °F);
storage -30 to +70°C (-22 to 158 °F).
Line Voltage: Normal 120 +/- 10% Vac (extreme 100 to 132 Vac, 47 to 63 Hz)
Normal 240 +/- 10% Vac (extreme 200 to 264 Vac, 50 to 60 Hz)
RH: 90% maximum non-condensing @ 40°C (104 °F) max.
Installation Category: II
Pollution Degree: 2
Altitude: <20,000 M (6562 ft)
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Performance under reference operating conditions
Display Accuracy:
Standard Ranges (Conductivity/Resistivity); ±0.5% of reading.
Wide Ranges (Conductivity); ±0.5% of reading or 0.02% of span.
Concentration; ±0.5% of span, ±1% conformity to conductivity vs. concentration data tables.
Output accuracy: Adjustable to within 0.01 mA, repeatable to within ±0.1% of span.
Reference Operating Conditions: 25 ±1 °C; 10 to 40% RH; 120 or 240 Vac; process temp 25 °C
measured
Operating Influences under normal operating conditions
Effect on accuracy (% of span): Temperature: 0.05% per °C; RH: <1%; Line Voltage: <0.1%
per volt; Power Loss: memory retention by EEPROM (no batteries).
2.1.7 Outputs
Standard alarm/control relays
Two SPDT Form C general purpose relays rated 0.6 amps at 120/240 Vac, 0.6 amps at 110 Vdc,
2 amps at 30 Vdc. Maximum switching power for ac, 125 VA resistive; for dc, 60W resistive.
Optional alarm/control relays
9782C- _ _ - R2: Two additional SPDT Form C, rated at 3 amps at 120 Vac
or 28 Vdc, no analog outputs
9782C- _ _ - R0: Two hermetically sealed Form C, rated at 3amps at 120 Vac
or 28 Vdc, plus one analog output 0 to 1 Vdc or 0 to 10 Vdc
or isolated 4 to 20 mA.
Optional analog outputs
One, two or three 4 to 20 mA outputs are available via an optional plug-in circuit card and
program module. Isolated from ground, inputs and one another.
Maximum isolation voltage: 240 Vac (will withstand 1500V hi-pot test).
Output adjustment: to within 0.01 mA.
Repeatability: ±0.1% of span. 600 ohm maximum load resistance. Proportional to selected
output
range.
9782C- _ _ - 00: None
9782C- _ _ -VC: One analog output: 0 to1V or 0 to10 Vdc or isolated 4 to20
mA dc (600 ohms maximum load)
9782C- _ _ - C2: Two analog outputs: both isolated 4 to 20 mA dc.
9782C- _ _ - C3: Three analog outputs: all 4 to 20 mA dc
One analog output also available in combination with optional relays (see above).
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/992-4
2.1.8 Temperature Compensation
Availability
All models can provide high resolution (0.05º C, typical) temperature compensation by
microprocessor calculation over 0 to 140º C for high purity water and concentrations as well as
routine water measurements.
standard range models: Temperature compensation algorithms are for NaCl,
acid/cation/ammonia, or morpholine.
wide range models: Temperature compensation algorithms are for NaCl, HCl,
NaOH, or H
Displayed process value can be toggled between compensated and uncompensated while the
Analyzer/Controller is online.
2.1.9 AutoClean
Cell rinse schedule settings
2SO4
Specifications and Model Number
.
Timer Cycle: Adjsutable; up to 28 days with day, hour, minute resolution.
Rinse Time: 1-1999 seconds.
Resume Process Time Delay: 1-1999 seconds.
2.1.10 Control
Settings
On/off period: 1 to 1000 seconds
On/off percent “on” time: 0 to 100%, 1% resolution.
Setpoint and proportional band limit ranges:conductivity: 0.055 to 19,999 µS/cm
resistivity: 0 to 19.99 Mohms/cm
temperature: 10 to 140 °C
DAT cycle period: 1 to 200 seconds.
PFT maximum frequency: 1 to 200 pulses/minute.
PFT pulse width: 50 ms, compatible with electronic pulse-type metering pumps.
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Conductivity/Resistivity Analyzer/Controller
2.1.11 Computed Values
Available selections
Description Equation Range
Available Computed Values
ratio between the values
measured by the cells
difference between the values
measured by the cells
percent passage
percent rejection
parts per million carbon
dioxide
(9782C-S0 only)
Cell
Cell12
Cell Cell12−
Cell
1
x
Cell
2
1
Cell
()x1
2
Cell
100
0.001 to 19,990
-19,990 to 19,990
0 to 100%
100−
0 to 100%
0 to 19.99 ppm
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/992-6
2.2 Model Number Br eakdown
Sel
Introduction
The model number breakdown is presented in the tables that follow.
The basic model number consists of a key number. Appended to this key number are characters
that identify the features in various categories. The meaning of the characters in each category is
presented in a table identified below. Note that because Tables III and IV do not affect I/O and
configuration parameter selection, the characters in these tables are displayed as “don’t care”
conditions (X) in product information viewed using the maintenance menu.
Instructions
9782 Analyzer Offers:
Standard - Backlit Display
Standard - 120/240 Volt Power Requirements
Standard - All models CE Compliant
Standard - All Conductivity models are 2 cell inputs
Standard - Built-in software for ON/OFF, Duration Adjusting and Pulse
Frequency Type Discrete Control with Standard and/or Optional relays,
Menu Driven Prompts for Display / Programming / Maintenance,
Text messages for Alarms/Diagnostics
Standard - FM Haz. Loc. Approval, Class I, DIV 2 (relays rated for 120 volt max)
Optional - Built-in software for proportional only Current Adjusting type control
with the selection of a 4-20 mA output(s)
Specifications and Model Number
9782S - Specific Ion Analyzer Offers:
Standard - All of the above
Standard - All Specific Ion models include one 4-20mA output and 4 relays
(No other options from Table II)
ect the desired key number. The arrow to the right marks the selection available.
Make one selection from Tables using the column below the proper arrow.
A dot ( ) denotes unrestricted availability.
Key Number I II III IV
_ _ _ _ _ - _ _ - _ _ - _ _ _ _ _ _ - _ _
KEY NUMBER Selection Availability
Description
pH/ORP 9782P
Conductivity 9782C
Specific Ion 9782S
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Conductivity/Resistivity Analyzer/Controller
gging
TABLE I - INPUTS
pH/ORP Electrodes
pH from External Pre-amp 01
Direct Glass/Antimony pH/ORP Electrode/Internal Pre-amp 02
Direct DURAFET pH electrode, Internal Pre-amp 03
Direct Glass from HPW7000, Hi-pHurity Water Assembly,
Internal Preamp
Conductivity Cells
Range Standard
Specific Ion
Range - 0.001 to 1990 0M
TABLE II - AVAILABLE OUTPUTS
No Outputs or Additional Relays 00
0-1V & 0-10 V and 4-20 mA VC
Two 4-20 mA C2
Three 4-20 mA C3
Two Additional Relays - Hermetically Sealed R0
and 0-1V, 0-10V, 4-20 mA output
TABLE III - OPTIONS Selection PCS
User’s Manual English
Pipe Mounting Kit None _ 0 _ _ _ _
Pipe Mounting Kit
Ta
None _ _ 0 _ _ _
Linen
Stainless Steel
Power Factory Set 120 Volt Operation _ _ _ 0 _ _
Factory Set 240 Volt Operation
(Relay contacts rated for 120 volt maximum)
Certificate of No
Calibration Yes
Wide
(Note 2)
(Note 3)
(Note 4)
(Note 1)
(Note 1)
04
S0
W0
9782 _ Availability
E _ _ _ _ _
_ 1 _ _ _ _
_ _ L _ _ _
_ _ S _ _ _
_ _ _ 1 _ _
_ _ _ _ 0 _
_ _ _ _ 1 _
TABLE IV
Factory Use Only BD
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/992-8
Specifications and Model Number
Note 1: Customer must supply tagging information; Up to 3 lines allowed.
(22 characters for each line)
Note 2: This option for use with HPW7000 assembly only.
Note 3: Standard range should be selected if measuring the following
conductivity, resistivity or TDS ranges:
STANDARD RANGE
Conductivity TDS Cell Constant
0-1.999 0-1999 ppb 0.01
0-19.99 0-19,990 ppb 0.1
0-199.9 0-199.9 ppm 1. 0
0-1999 0-1999 ppm 10
0-19,990 0-10,000 ppm 25 or 50
Resistivity Cell Constant
0-19.99M 0.01
0-1.999M 0.1
0-199.9k 1.0
0-19.99k 10
0-1.999k 25 or 50
Note 4: Wide range should be selected if measuring the following
conductivity, TDS or weight % concentration ranges:
WIDE RANGE
Conductivity TDS Cell Constant
100-1999 0-1999 ppm 0.1
1000-19,990 0-19,990 ppm 1.0
10-199.9 mS 0-199.9 ppt 10
10-500 mS 25
20-1000 mS 50
Weight % Concentration Cell Constant
0-18.00% Hydrochloric Acid 50
0-19.99% Sulfuric Acid 50
0-19.99% Sodium Hydroxide 25 or 50
0-19.99% Sodium Chloride 25 or 50
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3. Unpacking, Preparation, and Mounting
3.1 Overview
Introduction
This section contains instructions for unpacking, preparing, and mounting the
Analyzer/Controller. Instructions for wiring are provided in Sections 4 and 6. Software
configuration is described in Section 5.
What’s in this section?
The topics in this section are listed below.
Unpacking, Preparation, and Mounting
Topic See Page
3.1 Overview 3-1
3.2 Unpacking and Preparing 3-2
3.3 Mounting 3-3
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Conductivity/Resistivity Analyzer/Controller
3.2 Unpacking and Preparing
Procedure
Table 3-1 contains procedure for unpacking and preparing the 9782.
Table 3-1 Procedure for Unpacking and Preparing the 9782
Step Action
ATTENTION
For prolonged storage or for shipment, the instrument should be kept in its shipping
container. Do not remove shipping clamps or covers. Store in a suitable environment only
(see specifications in Section 2).
Carefully remove the instrument from the shipping container.
1
Compare the contents of the shipping container with the packing list.
2
•
Notify the carrier and Honeywell immediately if there is equipment damage or shortage.
•
Do not return goods without contacting Honeywell in advance.
Remove any shipping ties or packing material. Follow the instructions on any attached tags,
3
and then remove such tags.
All 9782 Analyzer/Controllers are calibrated and tested at the factory prior to shipment.
4
Examine the model number on the nameplate (Figure 3-1) to verify that the instrument has
the correct optional features. (See Section 2 for model number breakdown.)
Select an installation location that meets the specifications in Section 2. The 9782 can be
5
panel-, wall- or pipe-mounted (see 3.4).
ATTENTION
Pipe mounting is not recommended if the pipe is subject to severe vibration. Excessive vibration
may affect system performance.
If extremely hot or cold objects are near the installation location, provide radiant heat
6
shielding for the instrument.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/993-2
Unpacking, Preparation, and Mounting
Honeywell
York, PA U.S.A.
ATTENTION - UNIT SET FOR 240 VAC
9782C-S0-VC-E0010-00
S/N: 9751Y712345670001
USA WARRANTY ASSISTANCE - 1 - 800-423-9883
120/240 VAC 50/60 Hz 15VA
Contact Rating 1 & 2: 0.6 Amps at 120/240 VAC,
0.6 Amps at 110 VDC, and 2 Amps at 30 VDC.
If installed 3 & 4: 3 Amps at 120 VAC, 28 VDC.
CASE: NEMA 4X Directions: 70-82-25-74
Figure 3-1 Sample Nameplate
CE
3.3 Mounting
Introduction
The 9782 Analyzer/Controller can be panel-, wall- or pipe-mounted.
Panel-mounting
Figures 3-2-1 and 3-2-2 (non-backlit) and 3-3-1 and 3-3-2 (backlit) show panel cutout
dimensions. They also illustrate how the instrument is attached to a panel by clamping the edges
of the cutout between the case flange and the supplied U-bracket which is fastened to the rear of
the case.
The panel may be up to 3/ 8 in. thick. Cutouts for adjacent 9782 Analyzer/Controllers may be no
closer than .687 in. horizontally and .937 in. vertically, resulting in a nominal edge-to-edge bezel
separation of .078 in.
Note that if the panel already has a cutout for a 7082 instrument, the same cutout can be used for
the 9782. If the panel has a cutout for a 7070, 7075, 7076, 7077, or 7078 instrument, a Reducer
Panel Kit is available for mounting the 9782. The part number is in Section 11.
Wall- and pipe-mounting
A bracket is available as an option for wall or pipe mounting the unit as shown in Figures 3-2-1
and 3-2-2 (non-backlit) and 3-3-1 and 3-3-2 (backlit).
The mounting bracket part number is in Section 11.
ATTENTION
Pipe mounting is not recommended if the pipe is subject to severe vibration. Excessive vibration
may affect system performance.
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Conductivity/Resistivity Analyzer/Controller
6.12 ± .030
Case Outline
155.57 ± 0.76
Square
C
L
7.00 ± .040
177.80 ± 1.02
6.00
152.40
C
L
(2) ¼-20 Tapped Holes
in rear of case for
mounting bracket
4.81
122.17
1.37
34.92
Panel Cutout
2.75
69.85
min spac e
between
horizontal
cutouts
.687
17.45
.125
3.18 R max
permissible
7.43 ± .070
188.72 ± 1.78
.87
Dia holes (4)
22.22
for lead wires,
accomodates conduit
by customer
5.516
140.11
2.76
70.05
.50
12.70
+.047
- 0
+1.19
- 0
Terminal Boards
5.516
140.11
2.76
70.05
.937
23.81
min space between
vertical cutouts
7.68 ± .060
195.07 ± 1.52
2.41
61.21
LEGEN D:
+.047
- 0
+1.19
- 0
inches
mill ime ters
Horizontal Rear Pipe Mounting
Figure 3-2-1 Mounting and Dimensions – Non-Backlit Display Option
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/993-4
1.00
25.40
IPS Pipe
(by customer)
3.06
77.80
Note 1: Do not exceed 80 lb-in torque
when tightening fastners.
Unpacking, Preparation, and Mounting
Vertical Rear Pipe Mounting
7.43 ±.070
188.72 ±1.78
Top View
7.43 ±.070
188.72 ±1.78
C
L
LEGEN D:
1.00
25.40
Note 1: Do not exceed 80 lb-in torque
when tightening fastners.
inches
mill ime ter s
IPS Pipe
(by customer)
Panel Mounting
into existing 7075, 7076, 7077, and 7078 series cutouts
1.50
38.10
3.00
76.20
3.06
77.80
7.68 ±.060
195.07 ±1.52
C
L
6.43 ±0.70
163.32 ±1.78
R.H. Side View
Wall Mounting
7.68 ±.060
195.07 ±1.52
1.06 ±.025
26.92 ±0.64
Four holes in bracket or
1/4 dia. mounting bolts
(bolts by customer)
.25 max.
6.35
Customer Panel
6.27 ±.040
159.26 ±1.02
Panel Mounting
6.63
C
L
6.27 ±.040
159.26 ±1.02
3.31
84.07
168.40
1.00 ±.025
25.40 ±0.64
.12 min.
.37 max.
3.04
Customer Panel
9.40
C
L
Figure 3-2-2 Mounting and Dimensions – Non-Backlit Display Option
6.43 ±0.70
163.32 ±1.78
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Conductivity/Resistivity Analyzer/Controller
6.12 ± .030
155.57 ± 0.76
Square
C
L
Case Outline
7.21 ± .040
183.13 ± 1.02
6.00
152.40
C
L
(2) ¼-20 Tapped Holes
in rear of case for
mounting bracket
4.81
122.17
1.37
34.92
Panel Cutout
2.75
69.85
min sp ace
between
horizontal
cutouts
.687
17.45
.125
3.18 R max
permissible
7.64 ± .070
194.06 ± 1.78
.87
Dia holes (4)
22.22
for lead wires,
accomodates conduit
by customer
5.516
140.11
2.76
70.05
.50
12.70
+.047
- 0
+1.19
- 0
Terminal Boards
5.516
140.11
2.76
70.05
.937
23.81
min space between
vertical cutouts
7.68 ± .060
195.07 ± 1.52
2.41
61.21
LEGEN D:
+.047
- 0
+1.19
- 0
inches
mill ime ter s
Horizontal Rear Pipe Mounting
Figure 3-3-1 Mounting and Dimensions – Backlit Display Option
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/993-6
1.00
25.40
IPS Pipe
(by customer)
3.06
77.80
Note 1: Do not exceed 80 lb-in torque
when tightening fastners.
Unpacking, Preparation, and Mounting
Vertical Rear Pipe Mounting
7.64 ±.070
194.06 ±1.78
Top View
7.64 ±.070
194.06 ±1.78
C
L
LEGEND:
1.00
25.40
Note 1: Do not exceed 80 lb-in torque
when tightening fastners.
inches
millimeters
IPS Pipe
(by customer)
Panel Mounting
into existing 7075, 7076, 7077, and 7078 series cutouts
1.50
38.10
3.00
76.20
3.06
77.80
7.68 ±.060
195.07 ±1.52
C
L
6.43 ±0.70
163.32 ±1.78
R.H. Side View
Wall Mounting
7.68 ±.060
195.07 ±1.52
1.27 ±.025
32.26 ±0.64
Four holes in bracket or
1/4 dia. mounting bolts
(bolts by customer)
.25 max.
6.35
Customer Panel
6.27 ±.040
159.26 ±1.02
Panel Mounting
6.63
C
L
6.27 ±.040
159.26 ±1.02
3.31
84.07
168.40
1.21 ±.025
30.73 ±0.64
.12 min.
.37 max.
3.04
Customer Panel
9.40
C
L
Figure 3-3-2 Mounting and Dimensions – Backlit Display Option
6.43 ±0.70
163.32 ±1.78
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4.1 Overview
Introduction
This section contains instructions for installing ac power wiring for the Analyzer/Controller, in
preparation for configuring the software and performing I/O setup as described in Section 5.
We recommend that you wait to install input and output wiring (see Section 6) until after I/O
setup. During I/O setup the software will determine for you which relay to use for each feature.
What’s in this section?
The topics in this section are listed below.
Power Wiring
4. Power Wiring
Topic See Page
4.1 Overview 4-1
4.2 General Wiring Practices for Power Wiring 4-2
4.3 Power Wiring Considerations 4-3
4.4 Installing Power Wiring 4-4
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Conductivity/Resistivity Analyzer/Controller
4.2 General Wiring Practices for Power Wiring
WARNING
Wiring should be performed by qualified personnel only.
Safety precautions
WARNING
A disconnect switch must be installed to break all current carrying conductors. Turn off power
before working on conductors. Failure to observe this precaution may result in serious personal
injury.
WARNING
An external disconnect switch is required for any hazardous voltage connections to the relay outputs.
Avoid damage to components
ATTENTION
This equipment contains devices that can be damaged by electrostatic discharge (ESD). As
solid state technology advances and as solid state devices get smaller, they become
increasingly sensitive to ESD. The damage incurred may not cause the device to fail
completely, but may cause early failure. Therefore, it is imperative that assemblies containing
static sensitive devices be carried in conductive plastic bags. When adjusting or performing any
work on such assemblies, grounded work stations and wrist straps must be used. If soldering
irons are used, they must also be grounded.
A grounded work station is any conductive or metallic surface connected to an earth ground,
such as a water pipe, with a 1/2 to 1 megohm resistor in series with the ground connection. The
purpose of the resistor is to current limit an electrostatic discharge and to prevent any shock
hazard to the operator. The steps indicated above must be followed to prevent damage and/or
degradation, which may be induced by ESD, to static sensitive devices.
Wiring for immunity compliance
In applications where either the power, input or output wiring are subject to electromagnetic
disturbances, shielding techniques will be required. Grounded metal conduit with conductive
conduit fittings is recommended.
Connect the ac mains through a fused disconnect switch. To ensure that the unit meets the
requirements of the EMC directive 89/336/EEC, a power line filter kit is included with each unit.
Wind three turns of each wire (14 AWG maximum) through the filter core for the two power and
protective earth leads as illustrated in Figure 4-1. The wound filter cores shall be located
external to the 9782 case within 25 cm.
Conform to code
Instrument wiring should conform to regulations of the National Electrical Code.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/994-2
4.3 Power Wiring Considerations
Recommended wire size
Power Wiring
Observe all national and local electrical codes when making power connections. Unless locally
applicable codes dictate otherwise, use 14 gauge (2.081 mm
Power supply voltage and frequency within specs
The power supply voltage and frequency must be within the limits stated in the specifications in
Section 2.
2
) wire for ac power.
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Conductivity/Resistivity Analyzer/Controller
4.4 Installing Power Wiring
Procedure
Follow the procedure in Table 4-1 to install AC power wiring.
WARNING
Turn power off at mains before installing AC power wiring.
Table 4-1 Procedure for Installing AC Power Wiring
Step Action
Check the tag on the outside of the case to be sure that the voltage rating of the unit
1
matches the supply voltage at your site.
ATTENTION
The unit may be damaged if you apply power with the wrong voltage.
Open the case:
2
•
Grasp the bottom center portion of the front bezel and pull it downward and toward you
slightly to disengage the bottom of the bezel from the edge of the case.
•
Lift the bezel gently to disengage it from the top edge of the case.
•
Swing the bezel to the left. (The bezel and display assembly is mounted on pivot arms.)
The safety cover with its warning label will be visible.
Remove the safety cover by removing the single screw holding it in place.
3
Install a fused disconnect switch in the power line which will be connected to the
4
Analyzer/Controller.
•
If a 230/240 Vac line is to be connected, use a 0.125 amp fuse.
•
If a 110/120 Vac line is to be connected, use a 0.25 amp fuse.
To ensure that the unit meets the requirements of EMC directive 89/336/EEC, install the
5
power line filter kit supplied with the Analyzer/Controller. Wind three turns of each wire (14
AWG maximum) through the filter core for the two power and protective earth leads as
illustrated in Figure 4-1. The wound filter cores shall be located external to the 9782 case
within 25 cm.
Connect the power wiring to terminals L1 and L2/N as shown in Figure 4-1. Connect the hot
6
side of the line to terminal L1 and the grounded side of the line to terminal L2/N.
If the L2/N side of the line cannot be grounded, add an isolating transformer electrically
between the power supply and the instrument and ground the L2/N terminal.
WARNING
The ground terminal must be connected to a reliable earth ground. If metal conduit is used, connect
a bonding wire between conduits. Do not rely upon the conductive coating of the instrument case to
provide this connection. Failure to observe this precaution may result in serious personal injury.
Replace the safety cover and secure it with the screw.
7
8 Close the case and power up the unit. Do not apply power until the case is closed.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/994-4
PE = Protective
Eart h Ground
Power Wiring
Power Terminations
L1
L2/N
PE
Figure 4-1 AC Power Terminals
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5. I/O Setup and System Configuration
5.1 Overview
Introduction
This section provides instructions for performing I/O setup and for configuring the
Analyzer/Controller’s software to implement your control strategy.
What’s in this section?
The topics in this section are listed below.
5.1 Overview 5-1
5.2 I/O Setup and Configuration Tasks 5-2
I/O Setup and System Configuration
Topic See Page
5.3 Performing I/O Setup 5-4
5.4 Configuring Current Adjusting Type Control and/or Retransmission of Process
Variables
5.5 Configuring On/Off, Duration Adjusting Type (DAT) or Pulse Frequency Type
(PFT) Control
5.6 Configuring Alarms 5-16
5.7 Setting the Clock 5-17
5.8 Configuring AutoClean 5-18
5.9 Selecting a Computed Value To Be Displayed 5-21
5.10 Summary of Menu Choices and System Defaults 5-23
Powering up the Analyzer/Controller
Every time the Analyzer/Controller is powered up the unit performs a “warm reset”. During a
warm reset, alarms are not cleared, and outputs are maintained at their last value prior to the loss
of power or initiation of the warm reset. A warm reset has no effect on configuration or
calibration values.
In addition to this warm reset, a “cold reset” function is available to return ALL configuration
values to the factory settings shown in Table 5-10. During a cold reset some I/O setup values
will also be changed. In addition, the cal factor will be set to match the default cell constant, and
the calibration trim or TDS ( total dissolved solids) conversion factor will be removed,
eliminating any changes made using the calibration menu (see Section 8). All alarms will be
cleared. Analog outputs will go to zero momentarily, then go to the factory default values. A
cold reset can be initiated using a maintenance menu function as described in Section 10. It will
also be initiated during I/O setup if the measurement type, relay activation, display resolution,
cell constant, or an analog or discrete I/O assignment is changed.
5-10
5-12
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Conductivity/Resistivity Analyzer/Controller
5.2 I/O Setup and Configurati on Tasks
Ease of configuration
Configuring the 9782 software is fast and easy. A menu is provided for every configuration task.
You will be permitted to configure only those parameters relevant to your application and
supported by the Analyzer/Controller model you purchased. In fact, configuration screens will
contain only prompts and menu choices that apply to your application.
Accessing the I/O setup and configuration menus
Use the MENU key to access the main menu which includes CONFIGURATION and I/O
SETUP choices.
If the security feature has been enabled as described in Section 10, the password must be entered
in response to the prompt before you can proceed. (Out-of-the-box units do not require entry of a
password to access the menu system.)
Purpose of I/O setup
I/O setup can be accessed to either choose or review I/O parameters. When you choose features
during I/O setup, the software makes appropriate I/O assignments. I/O setup (see 5.3) must
precede configuration. The choices made during I/O setup determine which prompts and menu
choices are available during configuration. (Even though I/O setup is performed first, I/O
SETUP is last on the main menu because you usually only have to access this function a few
times in the life of your Analyzer/Controller.)
Purpose of configuration menu items
The configuration menu contains the following items for accessing screens used to configure the
features described below.
• CAT/RETRANSMISSION: If the hardware supports analog outputs, configure parameters
related to use of these outputs as described in 5.4.
• ALARMS: If one or more relays are available for annunciation of alarms, configure each
alarm input, setpoint, deadband, and delay as described in 5.6. (Alarms are assigned to
relays with I/O SETUP.)
• DISCRETE CONTROL: One or more relays can be used to achieve control of process
variables using On/Off, Duration Adjusting Type (DAT) or Pulse Frequency Type (PFT)
control strategies. Configure the related parameter values as described in 5.5.
• ADVANCED FEATURES: This menu item provides access to configuration screens for
the following features:
• CLOCK SETUP: A display showing the current time can be accessed when the unit
is online. The 24-hour clock must be set before you can use the AutoClean feature
described below. Set the clock as described in 5.7.
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• AUTOCLEAN: AutoClean is a feature that lets the Analyzer/Controller periodically
• COMPUTED VALUE: The Analyzer/Controller can compute and display a value,
Illustrations
The procedures in this section contains illustrations of display screens. These pictures are
intended to show the types of information displayed on each screen. However, the screens you
will actually see on your Analyzer/Controller may be different from the pictures in the manual.
The displays will be customized for the hardware and application.
System defaults
Table 5-10 contains the menu choices available (or ranges for numeric values) and system
defaults for I/O assignments and configuration parameters, as well as for values entered during
maintenance functions described in Section 10.
I/O Setup and System Configuration
rinse the cells automatically. Configure control of AutoClean as described in 5.8.
such as the ratio between Cell 1 and Cell 2 conductivity values or the parts per million
of carbon dioxide. Select the value to be displayed as described in 5.9. (A different
computed value can be sent to an analog output as described in 5.3.) If a computed
value is used, it is significant which cell is considered “Cell 1” and which is “Cell 2”.
This must be taken into account when wiring the inputs. See 6.3 for details.
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Conductivity/Resistivity Analyzer/Controller
5.3 Performing I/O Setup
Purpose
Before you can configure your Analyzer/Controller to implement your alarm and control strategy
you must perform I/O setup. In I/O setup you choose the features to be used, based on the
hardware capability of the 9782 model being configured. Using your selections, the software
will display the relay and analog output assignments appropriate for your application. The
choices made during I/O setup determine which prompts and menu choices are available during
configuration. For a discussion of the features available, and of the interactions affecting relay
assignments, see Section 1.
I/O setup is also used to specify relay action. The relay action used for alarm and/or control
action for all relays in the Analyzer/Controller can be specified as energized or de-energized on
alarm (or when discrete control point is ON).
In addition, I/O setup is used to specify display resolution and unit of measure (see below).
Display resolution and unit of measure
For standard range models (9782C-S0), the resolution of the display of conductivity or resistivity
can be selected. (No other displays are affected.)
• When set to LOW, the decimal point is fixed. It remains in the same place throughout the
display range.
• When set to HIGH, the decimal point will automatically be shifted one place to the left to
provide greater resolution when the displayed value falls below 10% of the high display
range, and conversely, be shifted back when the value increases above 10%.
This selection of low or high display range has no effect on the fixed or auto output range status.
For conductivity measurement the unit of measure can also be specified for standard range
Analyzer/Controllers. No unit of measure is displayed for wide range models. The
Analyzer/Controller automatically uses the conductivity unit of measure appropriate for the cell
constant (see Wide Display Ranges table in Sub-Section 2.1.5.)
ATTENTION
If you use I/O setup to view parameters, making no changes, a cold reset will not occur.
However, if you change any parameter other than the type of solution for which temperature
compensation should be applied, you will cause the Analyzer/Controller to perform a cold reset
(see page 5-1). This cold reset is necessary to ensure that the integrity of the unit remains intact
when critical parameters have been changed.
ATTENTION
AutoClean and range status indication cannot be selected for use with two cells simultaneously.
Your choices are:
• For Cell 1 only, use AutoClean (Relay 1) and/or range status indication (Relay 2).
• For both Cell 1 and Cell 2, use AutoClean (Relays 1 and 3), with no range status indication,
nor any discrete control.
• For both Cell 1 and Cell 2, use range status indication (Relays 2 and 4), with no AutoClean,
nor any discrete control.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-4
Procedure
The procedure for I/O setup configuration is shown in Table 5-1.
I/O Setup and System Configuration
ATTENTION
If you add an option card to the 9782, it is very important that you change the model number
stored in memory (see Section 10).
During I/O setup the software will display prompts only for those features the hardware can
support. The model number of the unit was stored in the 9782 memory at the factory. Each
combination of features has a unique model number (see Section 2). Therefore, the processor
can use this information to determine which prompts and selections are appropriate.
Entering the new number when you modify the hardware will let the processor know about the
new hardware capabilities. As a result, you will be able to configure the unit to take advantage of
features requiring that hardware.
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Conductivity/Resistivity Analyzer/Controller
Table 5-1 Procedure for Performing I/O Setup
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SETUP
DIAGNOSTICS
| PREV | N EXT
Go to I/O SETUP.
2
RELAY SETTINGS
RLY1 RLY2 RLY3 R LY4
ACLN RNGS ALM3 A LM4
The first screen shows the present use of available relays.
This information is read-only.
In this example the 9782 has four relays. Relay 1 is used
DIAGNOSTICS
| PREV | N EXT
for AutoClean. Relay 2 is used for indication of automatic
output range switching. Relay 3 is used to trigger an alarm
annunciator for Alarm 3. Relay 4 is used for Alarm 4
annunciation.
Go to the next screen.
3
4
ANALOG OUTPUTS
OUTPUT1 C1
OUTPUT2 C2
OUTPUT3 RATO
DIAGNOSTICS
| PREV | NEXT
ATTENTION
RECONFIG OF ANY I/O
SETUP PARM WILL
RESET CONFIG PARMS
TO FACTORY DEFAULTS
MENU TO EXIT
DIAGNOSTICS
| PREV | NEXT
The next screen shows the present assignments for the
optional current or voltage outputs, if available. This
information is read-only.
1
Go to the next screen.
I/O setup is normally performed only once, before field
connections are made to the Analyzer/Controller. You can
also use this menu to view parameters. If you do not
change anything, you will not cause a cold reset of the
unit. You can exit now using the MENU key. If you go
past this “Attention” screen, you must go through the entire
sequence of I/O setup screens before returning to the
main menu.
Go to the next screen.
5
ADVANCED FEATURES
AUTOCLEAN YES
RANGE STATUS NO
Specify whether AutoClean should be enabled. If YES, a
relay will be dedicated to this use.
Specify whether you want to use a relay to indicate when
DIAGNOSTICS
| | N EXT
the range shifts for the analog output based on Cell 1’s
input. (Output scaling is specified in Step 13.) If YES, a
relay will be assigned to indicate when the Cell 1 range
switch occurs.
Go to the next screen.
1
If the system uses a DE option card, no analog outputs are supported by the hardware. The screen will show “DE
ENABLED”, instead of displaying output assignments.
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I/O Setup and System Configuration
Step Screen Action
6
DISCRETE CONTROL
SELECT YES
DIAGNOSTICS
| PREV | N EXT
If any relays are still available, the screen will display a
query about discrete control.
7
8
9
10
DISCRETE CONTROL TYPE
RELAY 3 N/A
RELAY 4 DAT
DIAGNOSTICS
| PREV | NEXT
RELAY ASSIGNMENTS
RLY1 RLY2 RLY3 RLY4
ACLN RN GS AA DAT
DIAGNOSTICS
| PREV | NEXT
RELAY ACTIVATION
STATE ON ALARM
SELECT DE-ENERGIZE
DIAGNOSTICS
| PREV | N EXT
MEASUREMENT TYPE
SELECT COND/TDS
DIAGNOSTICS
| PREV | N EXT
If discrete control will be used, select the relay(s) to be
used and the type of control for each.
Go to the next screen.
If any relays are still available, then indicate which feature
will be associated with each available relay. In our
example, only Relay 3 can be assigned using this screen.
Relays 1, 2 and 4 have already been dedicated to other
functions.
However, by selecting AA, all alarms can be directed to a
single relay.
The display will indicate whether relay activation in case of
alarm (or control output “ON” state) is currently ENERGIZE
or DE-ENERGIZE.
Use this display to specify the desired relay action.
Specify the type of measurement to be performed by the
Analyzer/Controller.
If you specify any measurement type other than the default
(conductivity/total dissolved solids), the unit will
immediately perform a cold reset, returning all
configuration and calibration trim (or TDS factor) values to
the factory defaults.
A cold reset will also return some I/O setup values to
factory settings. If you change the measurement type,
be sure to cycle through all the other I/O setup
screens and check that the settings are appropriate
for your application.
Go to the next screen.
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Conductivity/Resistivity Analyzer/Controller
Step Screen Action
11
DISPLAY RESOLUTION
RESOLUTION LOW
UOM uS
Use this screen to specify the display resolution, LOW
(fixed) or HIGH (automatically adjusted).
Also use it to specify the unit of measure for conductivity
DIAGNOSTICS
| PREV | NEXT
measurement with standard range models.
•
If the instrument is a standard range model and the cell
constant is 0.01, 0.1, or 1.0, then the choices are
microSiemens per centimeter (µS/cm) displayed as uS or
microSiemens per meter (µS/m) displayed as uSm.
•
If the instrument is a standard range model and the cell
constant is 10 or greater, then the unit of measure is
always microSiemens per centimeter (µS/cm) displayed as
uS.
12
SELECT CELL CONSTANT
C1 0.1
C2 N/A
DIAGNOSTICS
| PREV | NEXT
Specify the cell constant for each cell. Note that this is the
cell constant for the type of cell. The number can be found
on the label on the potted connector housing of the cell.
The cell constant is indicated by the three characters
following the four-digit series number. For example, a cell
labeled 4973-001 has a 0.01 cell constant. When in
doubt, refer to the manual supplied with the cell.
2
Changing the cell constant causes the unit to perform a
cold reset, returning all configuration and calibration trim
(or TDS factor) values to the factory defaults.
A cold reset will also return some I/O setup values to
factory settings. If you change the measurement type,
be sure to cycle through all the other I/O setup
screens and check that the settings are appropriate
for your application.
If only one cell will be used, enter its constant for Cell 1
and select N/A for Cell 2. Step 5 in Table 6-2 outlines the
necessary wiring procedure when using Cell 1 and not Cell
2.
Go to the next screen.
2
Do not confuse this cell constant, universal for the type of cell, with the cell calibration factor that applies only to
each individual cell. The cell calibration factor is found on the plastic tag hanging from the cell lead wires. It is
entered using the calibration menu as described in Section 8.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-8
I/O Setup and System Configuration
|
Step Screen Action
13
14
15
SOLUTION TEMP COMP
C1 ACID/NH3/ETA
C2 NACL
DIAGNOSTICS
| PREV | NEXT
ANALOG OUTPUTS
OUTPUT1 C1
OUTPUT2 C2
OUTPUT3 RAT O
DIAGNOSTICS
| PREV | NEXT
OUTPUT SCALING
OUTPUT1 LINFIX EDRNG
OUTPUT2 LINAU TORNG
OUTPUT3 BI-L INEAR
Select the type of solution for which temperature
compensation should be applied.
If the hardware supports analog outputs, specify for each
which process variable or computed value will be
associated with the output.
If analog outputs will be used, specify the scaling for each
output.
4
3
CAT (Current Adjusting Type) control uses Fixed
DIAGNOSTICS
| PREV | NEXT
Linear Range only. Retransmitted process values can
be scaled. A retransmitted computed value always
uses Fixed Linear Range.
16
I/O SETUP COMPLETE
PRESS
ENTER TO CONTINUE
DIAGNOSTICS
| PREV |
UPDATING EEPROM
DIAGNOSTICS
| |
UPDATING EE PROM
PRESS ENTER
TO RETURN TO
MAIN MENU
DIAGNOSTICS
|
At this point, you have completed the I/O setup menu. If
you have changed at least one parameter (other than
solution temperature compensation) the unit will perform a
cold reset (see page 5-1).
When you press ENTER to continue, the message
“UPDATING EEPROM” will provide feedback, letting you
know your selections have been activated.
When the update has been completed, you will be
prompted to exit the menu.
3
If the system uses a DE option card, no analog outputs are supported by the hardware. The screen will show
“DE ENABLED”, instead of displaying output assignments.
4
This output range sca ling has no effect on the display. Di splay resolution is configured using the maintena nce
menu as described in Section 10.
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Conductivity/Resistivity Analyzer/Controller
5.4 Configuring Current Adjusting Type (CAT) Control and/or
Retransmission of Process Variables
Purpose
If the hardware supports analog outputs, during I/O setup you had an opportunity to specify
which process variable or computed value will be associated with each output. An analog output
can be used for scaled retransmission of the value, or for Current Adjusting Type control by
means of an output signal that is directly proportional to the input signal or computed value.
Before using analog outputs, you must configure the related parameter values.
For a discussion of tuning proportional control see Appendix A.
Procedure
The procedure for configuring CAT control and/or retransmission of process variables is shown
in Table 5-2.
Table 5-2 Procedure for Configuring CAT Control and/or Retransmission of
Process Variables
Step Screen Action
1
2
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DISCRE TE CONT ROL
ADVANC ED FEAT URES
DIAGNOSTICS
| PREV | NEXT
CAT/RETRANSMISSION
CAT
RETRANSMISSION
Go to CONFIGURATION | CAT/RETRANSMISSION.
ATTENTION: Any value entered for one of these
parameters will take effect as soon as it is entered.
If the Analyzer/Controller hardware only supports one
analog output, the screen at the left will be displayed when
CAT/RETRANSMISSION is selected from the menu.
DIAGNOSTICS
| PREV | N EXT
If the hardware supports three analog outputs, the screen
in Step 6 will be displayed when CAT/RETRANSMISSION
is selected from the menu.
If CAT control will be used, select it from the menu.
5
5
If the system uses a DE option card, no analog outputs are supported by the hardware. The screen will show “DE
ENABLED”, instead of displaying analog outputs.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-10
I/O Setup and System Configuration
|
Step Screen Action
3
4
CAT CONTROL
CAT1
CAT2
CAT3
DIAGNOSTICS
| PREV | NEXT
CAT CONTROL OUTP UT 1
SCALING LINFIXEDRNG
INPUT C1
SETPOINT 12000
PB LIMIT 300
DIAGNOSTICS
| PREV | N EXT
µ
S
µ
S
Select an output to configure it for control.
Go to the next screen.
The input type and appropriate unit of measure will already
be filled in, based on the process variable or computed
value assigned to this analog output during I/O setup. The
scaling characteristic will also be filled in; CAT output is
always linear fixed-range. (All this is read-only
information.)
Use the setpoint and proportional band parameters to
define the output span.
5
RETRANSMISSION
OUTPUT 1
OUTPUT 2
To configure retransmission on a unit with a single analog
output, go to CONFIGURATION |
CAT/RETRANSMISSION | RETRANSMISSION.
DIAGNOSTICS
PREV | NEXT
To configure retransmission on a unit with three analog
outputs go to CONFIGURATION |
CAT/RETRANSMISSION and select the output to be
configured.
6
OUTPUT 1
SCALING LINFIXEDRNG
INPUT C1
0% 0.0
100% 19.0
DIAGNOSTICS
| PREV | NEXT
µ
S
µ
S
For each output to which a process variable or computed
value was assigned during I/O setup, the value assigned
will be displayed, as well as the type of scaling to be
applied, and the appropriate unit of measure. (This is
read-only information.)
Specify the range by entering the values to be represented
by outputs of 0% and 100%. If reverse-acting output is
required, enter the high range value at the 0% prompt and
the low range value at the 100% prompt.
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Conductivity/Resistivity Analyzer/Controller
5.5 Configuring On/Off, Dur ation Adjusting Type (DAT), or
Pulse Frequency Type (PFT) Control
Purpose
During I/O setup you had an opportunity to specify whether to use one or more relays to achieve
control of a process variable with a discrete control strategy: On/Off, DAT or PFT.
On/Off control can be implemented based on any measured or computed value.
DAT and PFT control can be based on Cell 1 input, Cell 2 input, the computed ratio
computed difference
If you specified one or more of these discrete control types during I/O setup, you will be able to
configure the related parameter values.
For a discussion of tuning proportional control (applicable to PFT and DAT control) see
Appendix A.
Procedure
Cell Cell12−
.
Cell
Cell12
, or the
The procedure for configuring On/Off control is shown in Table 5-3.
The procedure for configuring PFT control is shown in Table 5-4.
The procedure for configuring DAT control is shown in Table 5-5.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-12
I/O Setup and System Configuration
Table 5-3 Procedure for Configuring On/Off Cont rol
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | DISCRETE CONTROL |
ON/OFF.
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DIS C RE TE CONTROL
ADVA NCED FEATURES
DIAGNOSTICS
| PREV | N EXT
DISCRETE CONTROL
ON/OFF
PFT
DAT
DIAGNOSTICS
| |
2
3
ON/OFF CONTROL
CYCLE PERIOD 500s
CYCLE TMR 1
CYCLE TMR 2
CYCLE TMR 3
CYCLE TMR 4
DIAGNOSTICS
| |
CYCLE TIMER 1 RLY2
INPUT C1
ACTION HIGH
SETPOINT 15000 µS
DEADBAND 250 µS
ONTIME 50%
DIAGNOSTICS
| |
ATTENTION: Any value entered for one of these controlrelated parameters will take effect as soon as it is entered.
Use this screen to specify the length of the cycle period for
all timers.
To configure an individual timer associated with one of the
relays, select it from the menu.
The relay assigned to this On/Off control output during I/O
setup will already be filled in. (This is read-only
information.)
Specify the process value or computed value to be used
as the input.
Specify whether relay activation should occur when the
input’s value exceeds the setpoint (HIGH action) or falls
below the setpoint (LOW action).
Enter the setpoint.
If desired, specify a deadband. (Once the output is ON, it
will remain ON until the controlled variable differs from the
setpoint by at least the value of the deadband.)
Enter the percent of the cycle period that the relay should
stay on when the setpoint is reached.
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Conductivity/Resistivity Analyzer/Controller
Table 5-4 Procedure for Configuring PFT Control
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | DISCRETE CONTROL | PFT.
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DIS C RE TE CONTROL
ADVA NCED FEATURES
DIAGNOSTICS
| PREV | N EXT
DISCRETE CONTROL
ON/OFF
PFT
DAT
DIAGNOSTICS
| |
2
PFT CONTROL
DB FREQ RATE 100 P/M
PFT1
PFT2
DIAGNOSTICS
| |
ATTENTION: Any value entered for one of these controlrelated parameters will take effect as soon as it is entered.
Specify the maximum frequency rate (in pulses per
minute) representing 100% output. (Be sure this rate is
compatible with the controlled device.) This rate will be
used for all PFT outputs in the Analyzer/Controller.
Use this screen to select the PFT control output to be
configured.
3
PFT 1
OUTPUT RLY2
INPUT C1
SETPOINT 15000 µS
PB LIMIT 250 µS
DIAGNOSTICS
| |
The relay assigned to this PFT control output during I/O
setup will already be filled in. (This is read-only
information.)
Specify the process value or computed value to be used
as the input.
Enter the setpoint at which the output should be turned on.
Enter the PB Limit. This is the value for which the output’s
pulse output rate will be at its maximum frequency.
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I/O Setup and System Configuration
Table 5-5 Procedure for Configuring DAT Control
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | DISCRETE CONTROL | DAT.
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DIS C RE TE CONTROL
ADVA NCED FEATURES
DIAGNOSTICS
| PREV | N EXT
DISCRETE CONTROL
ON/OFF
PFT
ATTENTION: Any value entered for one of these controlrelated parameters will take effect as soon as it is entered.
DAT
DIAGNOSTICS
| |
2
DAT CONTROL
CYCLE PERIOD 200 S
DAT1
DAT2
Specify the length of the cycle period (in seconds) for the
time-proportioned control.
Use this screen to select the DAT control output to be
DIAGNOSTICS
| |
3
ON/OFF CYCLE TIMER 1
OUTPUT RLY2
INPUT C1
SETPOINT 15000 µS
PB LIMIT 250 µS
DIAGNOSTICS
| |
configured.
The relay assigned to this DAT control output during I/O
setup will already be filled in. (This is read-only
information.)
Specify the process value or computed value to be used
as the input.
Enter the setpoint at which the output should be turned on.
Enter the PB Limit. This is the value for which the output’s
on duration will be maximum.
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Conductivity/Resistivity Analyzer/Controller
5.6 Configuring Alarms
Purpose
If you assigned one or more alarms to at least one relay during I/O setup (described in 5.3), then
for each alarm select the process value or computed value to be alarmed, setpoint, deadband, and
delay as described below.
Procedure
The procedure for configuring parameters for an alarm is described in Table 5-6.
Table 5-6 Procedure for Configuring Alarms
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | ALARMS.
CONFIGURATION
CAT/RETRANSMISSION
ALAR MS
DISC RETE CONTROL
ADVA NCED FEATURES
DIAGNOSTICS
| PREV | N EXT
2
3
ALARMS
DELAY TIME 3 S
ALARM1
ALARM2
ALARM3
ALARM4
DIAGNOSTICS
| |
ALARM1
OUTPUT RLY2
INPUT C1
ACTION HIGH
SP 15000 µS
DEADBAND 250 µS
DIAGNOSTICS
| |
ATTENTION: Any value entered for one of these alarmrelated parameters will take effect as soon as it is entered.
Use this screen to enter a delay time to prevent brief
process upsets from activating an alarm. The delay
entered here will apply to all alarms.
Select the alarm to be configured.
The relay to which the alarm was assigned during I/O
setup will be displayed as read-only information.
Enter the measured variable or computed value to be
alarmed.
Indicate whether this is a high or low alarm.
Enter the setpoint value at which the alarm will become
active.
Specify the deadband. Once the alarm is active, it will not
deactivate until the alarmed variable differs from the
setpoint by at least the value of the deadband.
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5.7 Setting the Clock
Purpose
A display showing the current time can be accessed when the unit is online. The 24-hour clock
must be set before you can use the AutoClean feature described in Sub-Section 5.6.
Procedure
Follow the procedure in Table 5-7 to set the 24-hour clock.
Table 5-7 Procedure for Setting the Clock
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | ADVANCED FEATURES |
CLOCK SETUP.
I/O Setup and System Configuration
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DISC RETE CONTROL
ADV A NC ED FEATURE S
DIAGNOSTICS
| PREV | N EXT
ADVANCED FEATURES
CLO C K SE TUP
COMP UTED VALUE
AUTO CLEAN
DIAGNOSTICS
| |
2
24 HOUR CLOCK SETUP
CLOCK OFF
HOURS 13
MINUTES 30
DIAGNOSTICS
| | NEXT
Set the clock. For example, if you will start the clock at
1:30 PM, enter 13 hours, 30 minutes.
Start the clock and specify what should happen to the
clock if the power fails.
•
ON W/RESET starts the clock now. Following power
failure, the clock will be reset to 00:00 and the diagnostic
message “RESET CLOCK” will be displayed.
• ON W/O RESET starts the clock now. Following power
failure the clock will remain off, and the diagnostic
message “RESET CLOCK” will be displayed.
Display of ”RESET CLOCK” will continue until you either
reset the clock or turn it off.
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Conductivity/Resistivity Analyzer/Controller
5.8 Configuring AutoClean
Purpose
The AutoClean feature periodically rinses the cells automatically (see Section 7). If this feature
was selected during I/O setup (described in 5.3), configure control of AutoClean as described
below.
AutoClean configuration consists of specifying the frequency and duration of the rinses.
ATTENTION
For AutoClean to operate, the 24-hour clock must be set as described in 5.7.
The piping and valves required by AutoClean are shown in Section 7.
There are two modes of operation, timer-initiated and operator-initiated through the front panel
as described below.
Timer-initiated operation
With the 24-hour clock turned ON and the AutoClean feature enabled (and the appropriate piping
in place), this mode performs unassisted cell cleaning. The AutoClean Time Remaining on-line
display provides an up-to-date time stamp of the next occurrence of an automatic cell cleaning.
Once the timer reaches zero, the cell cleaning will occur. Upon completion, the timer will be
reset and the Time Remaining display will again provide a countdown to the next cleaning. To
temporarily disable timer-initiated AutoClean, you must either turn off the 24-hour clock (which
preserves your timer setup), or set the timer to all zeros (see Step 3 in Table 5-8). Unless the
Time Remaining display is on screen, you will not see the AUTO CLEAN message during a
scheduled cleaning.
Operator-initiated operation
To operate in this mode, you must have the AutoClean Time Remaining display on screen.
Initiate the AutoClean sequence by pressing the START soft key. Once the START soft key is
pushed, the time display will go to zero and the message “AUTO CLEAN” will appear on the
alarm stripe.
The sequence will stop cleaning if the STOP soft key is pressed or if you leave this display.
Once stopped, the Analyzer/Controller will wait for the configured resume delay time (to allow
the cell measurement to stabilize) before coming back on-line. During the resume delay the
“AUTO CLEAN” message will flash.
If the PAUSE soft key is used while the AutoClean Time Remaining display is on screen, the
AutoClean sequence will stop temporarily. If the PAUSE soft key is not pushed again to resume
the sequence, then the sequence will automatically resume in 20 minutes.
Once the AutoClean sequence has been completed (including resume delay), the “AUTO
CLEAN” message disappears and the time remaining clock will be displayed again, showing the
time remaining until the next scheduled timer-initiated cleaning.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-18
Hold mode
During AutoClean operations alarms and outputs are always held. This means that no alarms
will become active during the automatic operation. If one or more relays are being used for
alarm annunciation, they will go to the non-alarm state. Analog outputs and discrete control
relays will be held at their current value or state when the operation starts.
At the completion of the AutoClean operation the hold will be released and normal operation will
resume after the configured delay.
Procedure
If AutoClean was selected during I/O setup, follow the procedure in Table 5-8 to use the
displayed screens for configuration when AUTO CLEAN is selected from the ADVANCED
FEATURES configuration menu.
Table 5-8 Procedure for Configuring AutoClean
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | ADVANCED FEATURES |
AUTO CLEAN.
I/O Setup and System Configuration
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DISC RETE CONTROL
ADV A NC ED FEATURE S
DIAGNOSTICS
| PREV | N EXT
ADVANCED FEATURES
CLOC K SETUP
COMP UTED VALUE
AU TO CLEAN
DIAGNOSTICS
| PREV | N EXT
2
ATTENTION
24 HOUR CLOCK MUST
BE SETUP FOR
THIS FEATURE
If you have already set the clock, go to the next screen.
If you have not set the clock, press MENU to exit this
function, then set the clock as described in Sub-Section
DIAGNOSTICS
| | NEXT
5.7.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 5-19
Conductivity/Resistivity Analyzer/Controller
Step Screen Action
3
AUTO CLEAN
TIME R SE TUP
DAYS 3
HOURS 16
MINUTES 30
CURRENT DAY 2
DIAGNOSTICS
| | NEXT
Timer setup is used to specify the frequency of the rinses.
•
If several rinses are to be performed in a single day:
a) specify the number of days as zero
b) specify the number of hours and minutes in the
interval between rinses.
•
If rinses are to occur at intervals of days:
a) specify the number of days in the interval
b) specify the time of day (hours and minutes) the
rinse should occur.
In our example, the rinse will occur every third day at
4:30 PM.
•
If you plan to use AutoClean, but initiate rinses manually
using the real time AutoClean Time Remaining display:
a) specify the number of days as zero
b) specify the number of hours and minutes in the
interval between rinses as zero also.
IF YOU ENTER ALL ZEROS, NO AUTOMATIC
RINSES WILL BE PERFORMED.
Specify where today falls in the AutoClean cycle. For
example, if the interval for rinses is 3 days and you want
the first rinse to be tomorrow, specify that today is day 2.
4
AUTO CLEAN
RINS E SETUP
DURATION 180
RESUME DELAY 60
DIAGNOSTICS
| PREV | N EXT
Enter the duration of the rinse (in seconds).
Enter the number of seconds the Analyzer/Controller
should wait after the rinse before resuming normal
operation.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-20
I/O Setup and System Configuration
5.9 Selecting a Computed Value to Be Displayed
Purpose
The Analyzer/Controller can calculate and display a computed value. The available values are:
Cell
• RATIO: ratio between the values measured by the cells;
• DIFFERENCE: difference between the values measured by the cells;
Cell
1
x
100
Cell
• %PASSAGE: computed percent passage:
• %REJECTION: computed percent rejection:
2
Cell
()x1
Cell
• PPMCO2: computed parts per million carbon dioxide (standard range analyzers only)
Appendix B includes examples of applications using these values.
ATTENTION
Cell12
1
100−
2
Cell Cell12−
If a computed value is used, it is significant which cell is considered “Cell 1” and which is
“Cell 2”. This must be taken into account when wiring the inputs. See 6.3 for details.
Procedure
Use the procedure in Table 5-9 to specify a computed value.
Table 5-9 Procedure for Specifying a Computed Value
Step Screen Action
1
MENU
CONFIGURATION
CALIBRATION
MAINTENANCE
I/O SE TUP
DIAGNOSTICS
| PREV | N EXT
CONFIGURATION
CAT/RETRANSMISSION
ALARMS
DISC RETE CONTROL
ADV A NC ED FEATURE S
DIAGNOSTICS
| PREV | N EXT
Go to CONFIGURATION | ADVANCED FEATURES |
COMPUTED VALUE.
ADVANCED FEATURES
CLOC K SETUP
CO MP UT ED V A LU E
AUTO CLE AN
DIAGNOSTICS
| PREV | N EXT
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 5-21
Conductivity/Resistivity Analyzer/Controller
Step Screen Action
2
COMPUTED VALUE
SELECT DIFFERENCE
DIAGNOSTICS
| | N EXT
Specify the value to be computed.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-22
I/O Setup and System Configuration
5.10 Summary of Menu Choices and System Defaults
Introduction
Table 5-10 contains the menu choices available (or ranges for numeric values) and system
defaults for I/O assignments and configuration parameters, as well as for values entered during
maintenance functions described in Section 10, and the TDS conversion factor entered using the
calibration menu described in Section 8. Not every choice shown in this table applies to every
application.
Table 5-10 Menu Choices and System Defaults
PARAMETER CHOICES or RANGE
(Default is underlined)
I/O setup: measurement type
I/O setup: solution temperature compensation type
I/O setup: cell constant for Cell 1
9782C-S0
COND/TDS [total dissolved solids]
RESISTIVITY
9782C-W0
COND/TDS
CONCENTRATION
9782C-S0
NaCl
NH3/ACID/ETA
MORPHOLINE
NaCl (TDS)
NH3 (TDS)
MORPHOLINE(TDS)
9782C-W0
NaCl
HCl
NaOH
H2SO4
NaCl(TDS)
HCl(TDS)
NaOH)TDS)
H2SO4(TDS)
0.01
0.1
1.0
10.0
5.0
25.0
50.0
I/O setup: cell constant for Cell 2
I/O setup: AutoClean enabled
I/O setup: range status enabled
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 5-23
0.01
0.1
1.0
10.0
5.0
25.0
50.0
N/A
NO
YES
NO
YES
Conductivity/Resistivity Analyzer/Controller
PARAMETER CHOICES or RANGE
(Default is underlined)
I/O setup: discrete control enabled
I/O setup: discrete control type for each available relay
I/O setup: relay activation on alarm/control
I/O setup: display unit of measure (conductivity only)
I/O setup: relay alarm assignments
NO
YES
PFT
DAT
O/F [on/off]
N/A
ENERGIZE
DE-ENERGIZE
standard range models with cell constant ≤ 1:
uS (microSiemens per centimeter)
uSm (microSiemens per meter)
standard range models with cell constant of 10,25,or 50:
uS (microSiemens per centimeter) only
wide range models: automatially change from uS to mS
depending on cell constant; no selection available.
ALM1 [alarm 1] default for Relay 1
ALM2 [alarm 2] default for Relay 2
ALM3 [alarm 3] default for Relay 3
ALM4 [alarm 4] default for Relay 4
A1/D [alarm 1 or diagnostic]
A2/D [alarm 2 or diagnostic]
A3/D [alarm 3 or diagnostic]
A4/D [alarm 4 or diagnostic]
A1/2 [alarm 1 or 2]
A3/4 [alarm 3 or 4]
12/D [alarm 1 or 2 or diagnostic]
AA/D [any alarm or diagnostic]
234D [alarm 2 or 3 or 4 or diagnostic]
RNGD [range switch or diagnostic]
AA [any alarm]
RNGS [range switch]
I/O setup: analog output basis [unless DE is enabled]
configuration: retransmission output scaling
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-24
C1 [Cell 1 value]
C2 [Cell 2 value]
TMP1 [temperature value from Cell 1]
TMP2 [temperature value from Cell 2]
Cell
RATO [computed ratio:
%REJ [computed percent rejection:
%PSG [computed percent passage:
DIFF [computed difference:
Cell12
Cell Cell12−
]
1
Cell
()x1
2
Cell
Cell
1
x
100
Cell
2
]
100−
]
CO2 [computed parts per million carbon dioxide standard range analyzers only]
LINFIXEDRNG [linear fixed range]
always selected for
computed value
LINAUTORNG [linear auto range]
2DECADELOG
BI-LINEAR
]
I/O Setup and System Configuration
PARAMETER CHOICES or RANGE
(Default is underlined)
configuration: retransmission 0%
configuration: retransmission 100%
configuration: CAT control setpoint value
configuration: alarm setpoint value
configuration: configuration: On/Off control cycle timer
setpoint value
configuration: PFT control setpoint value
configuration: DAT control setpoint value
configuration: CAT control proportional band limit
configuration: alarm deadband
configuration: On/Off control cycle timer deadband
configuration: PFT control proportional band limit
configuration: DAT control proportional band limit
configuration: alarm delay
configuration: process variable or computed value to
be used as basis for discrete control output
configuration: process variable or computed value
alarmed
range depends on measurement type and cell constant;
default is value of lower range limit
range depends on measurement type and cell constant;
default is value of upper range limit
range depends on measurement type and cell constant;
default is value of upper range limit
0 to 100 seconds, default = 0
C1 [Cell 1 value]
C2 [Cell 2 value]
TMP1 [temperature value from Cell 1]
TMP2 [temperature value from Cell 2]
T1/2 [temperature 1 and/or 2 - only available for
alarming]
Cell
RATO [computed ratio:
%REJ [computed percent rejection:
%PSG [computed percent passage:
DIFF [computed difference:
Cell12
Cell Cell12−
]
1
Cell
()x1
2
Cell
Cell
1
x
100
Cell
2
]
100−
]
]
CO2 [computed parts per million carbon dioxide 9782C-S0 only]
configuration: alarm action
HIGH
LOW
configuration: On/Off control cycle timer period
configuration: On/Off control cycle timer “on” time
configuration: PFT control maximum pulse frequency
configuration: DAT control cycle period
configuration: 24-hour clock set mode
0 to 1000 seconds, default = 60
0 to 100% at 1% resolution, default = 100
1 to 200 pulses per minute, default = 60
0 to 200 seconds, default = 60
OFF
ON W/ RESET
ON W/O RESET
configuration: 24-hour clock set hour
configuration: 24-hour clock set minute
configuration: AutoClean timer set day
configuration: AutoClean timer set hour
configuration: AutoClean timer set minutes
0 to 24, default = 1
0 to 59, default = 0
0 to 28, default = 0
0 to 24, default = 1
0 to 59, default = 0
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 5-25
Conductivity/Resistivity Analyzer/Controller
PARAMETER CHOICES or RANGE
(Default is underlined)
configuration: AutoClean current day
configuration: AutoClean rinse duration
configuration: AutoClean resume delay
configuration: computed value selection
maintenance: display resolution
maintenance: security enabled
maintenance: password
maintenance: lead resistance compensation wire gauge
(AWG)
wide range models only
0 to 28, default = 0
1 to 1999 seconds, default = 60
NONE
Cell
RATIO [computed ratio:
DIFFERENCE [computed difference:
%PASSAGE [computed percent passage:
Cell12
]
Cell Cell12−
Cell
Cell
]
1
x
2
100
%REJECTION [computed percent rejection
1
Cell
:
()x1
Cell
100−
2
PPMCO2 [computed parts per million carbon dioxide 9782C-S0 only]
LOW
HIGH
YES
NO
0000 to 9999; default = 0000
12
14
16
18
]
]
maintenance: lead resistance compensation length
wide range models only
calibration: TDS conversion factor
1 to 1500 feet default = 1
standard range models with cell constant of 1, 10, 25, or
50:
0.01 to 1.999; default = 0.5 ppm
standard range models with cell constant of 0.01 or 0.1:
10 to 1999; default = 500 ppb
wide range models for all cell constants:
0.01 to 1.999; default = 0.5 ppm
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/995-26
6.1 Overview
Introduction
This section contains instructions for installing input and output wiring for the
Analyzer/Controller.
We recommend that you wait to install input and output wiring until after I/O setup (see
Section 5). During I/O setup the software will determine for you which relay to use for each
feature.
ATTENTION
If you plan to use a computed value such as the difference between the cell readings, it matters
which cell is “Cell 1” and which is “Cell 2”. See 6.4.3 for details.
Input and Output Wiring
6. Input and Output Wiring
ATTENTION
For successful measurement in pure water applications where plastic piping is used, you may
have to provide an earth ground for the cell. If the cell constant is 0.01, 0.1, or 1.0, run a wire
from the screw terminal (on the Analyzer/Controller ) to which the black wire in the cell lead is
attached to the lower card retainer bracket screw. (See Note 4 in Figure 6-1.)
Do not ground cells having cell constants of 10, 25, or 50.
What’s in this section?
The topics in this section are listed below.
6.1 Overview 6-1
6.2 General Wiring Practices for I/O Wiring 6-2
6.3 Wiring Analog Inputs and Outputs 6-4
6.4 Wiring Relays 6-7
WARNING
Topic See Page
While the unit is powered, a potentially lethal shock hazard exists inside the case. Do not open
the case while the unit is powered. Disconnect power before installing I/O wiring. More than one
switch may be required to disconnect power.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual
6-1
Conductivity/Resistivity Analyzer/Controller
6.2 General Wiring Practices for I/O Wiring
WARNING
Wiring should be performed by qualified personnel only.
Safety precaution
WARNING
A disconnect switch must be installed to break all current carrying conductors. Turn off power
before working on conductors. Failure to observe this precaution may result in serious personal
injury.
WARNING
An external disconnect switch is required for any hazardous voltage connections to the relay
outputs.
Avoid damage to components
ATTENTION
This equipment contains devices that can be damaged by electrostatic discharge (ESD).
The damage incurred may not cause the device to fail completely, but may cause early failure.
Therefore, it is imperative that assemblies containing static sensitive devices be carried in
conductive plastic bags. When adjusting or performing any work on such assemblies,
grounded work stations and wrist straps must be used. If soldering irons are used, they must
also be grounded.
A grounded work station is any conductive or metallic surface connected to an earth ground,
such as a water pipe, with a 1/2 to 1 megohm resistor in series with the ground connection. The
purpose of the resistor is to current limit an electrostatic discharge and to prevent any shock
hazard to the operator. The steps indicated above must be followed to prevent damage and/or
degradation, which may be induced by ESD, to static sensitive devices.
Immunity Compliance
In applications where either the power, input or output wiring are subject to electromagnetic
disturbances, shielding techniques will be required. Grounded metal conduit with conductive
conduit fittings is recommended.
Conform to code
Instrument wiring should conform to national and local electrical codes.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/996-2
Recommended maximum wire size
Table 6-1 Recommended Maximum Wire Size
Gage Number mm
14 2.081 power and relays
see Parts List 0.823 inputs*
18 0.823 isolated outputs
* Automatic compensation for input lead resistance is available. See Section 10 for details.
Cables for locations without interference
For steel (metal) conduit or open wiring away from any sources of interference, use
recommended Honeywell cables listed in the parts list in Section 11.
Shielded wiring for locations with interference
Input and Output Wiring
2
Description
In applications where plastic conduit or open wire trays are used, shielded 6-conductor 22 gage
(0.326 mm
Avoiding interference
2
) or heavier signal input wiring is required.
Instrument wiring is considered Level 1, per section 6.3 of IEEE STD. 518 for plant facilities
layout and instrumentation application. Level 1 wiring must not be run close to higher level
signals such as power lines or drive signals for phase fired SCR systems, etc. Unprotected input
wiring in high electrical noise environments is subject to electromagnetic, electrostatic, and radio
frequency interference pickup of sufficient magnitude to overload input filters. The best
instrument performance is obtained by keeping the interfering signals out of the instruments
altogether by using proper wiring practices.
References
Refer to the following when wiring the unit.
• IEEE STD. 518, Guide for the Installation of Electrical Equipment to Minimize Electrical
Noise Inputs to Controllers from External Sources.
• Appropriate wiring diagram supplied with cells.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual
6-3
Conductivity/Resistivity Analyzer/Controller
6.3 Wiring Analog Inputs and Outputs
Introduction
Every 9782 Analyzer/Controller requires input signals from the cells.
In addition, some 9782 models provide from one to three analog output signals (current and/or
voltage) that can be used to retransmit process variables, or to provide Current Adjusting Type
control (see 1.5.3).
Wiring these analog inputs and outputs is described here. Wiring relay outputs is described in
6.4.
Cell identification significant to computed value
The 9782 can compute a value (choices listed below), then display the value, and, if desired, use
it as the basis for control or alarming. (Sample applications are shown in Appendix B.) Each of
these computed values is calculated based on the process variable value measured by both cells.
Therefore, it matters which cell is considered “Cell 1” and which is “Cell 2”. The
Analyzer/Controller determines the cell’s identity based upon which terminals receive the cell’s
input (see Figure 6-1). If you have set up the 9782’s software to use a computed value, be
sure to wire the cell leads correctly.
The available computed values are:
Procedure
Follow the procedure in Table 6-2 to install analog I/O wiring.
Cell
• RATIO: ratio between the values measured by the cells;
• DIFFERENCE: difference between the values measured by the cells;
Cell
1
x
100
Cell
• %PASSAGE: computed percent passage:
• %REJECTION: computed percent rejection:
2
Cell
()x1
Cell
Cell12
1
100−
2
Cell Cell12−
• PPMCO2: computed parts per million carbon dioxide (9782C-S0 only)
WARNING
While the unit is powered, a potentially lethal shock hazard exists inside the case. Do not open
the case while the unit is powered. Disconnect power before installing I/O wiring. More than one
switch may be required to disconnect power.
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/996-4
Input and Output Wiring
Table 6-2 Procedure for Installing Analog I/O Wiring
Step Action
1
Go to I/O SETUP to view the displays showing analog input, relay, and analog output use.
Note the assignments shown. You must wire the unit to match these assignments in order
for the unit to work as expected. (See Section 5.)
2 Turn off the power to the Analyzer/Controller. More than one switch may be required
to remove power.
3 With the power off, open the case:
•
Grasp the bottom center portion of the front bezel and pull it downward and toward you
slightly to disengage the bottom of the bezel from the edge of the case.
•
Lift the bezel gently to disengage it from the top edge of the case.
•
Swing the bezel to the left. (The bezel and display assembly is mounted on pivot arms.)
The safety cover with its warning label will be visible.
4 With the power off remove the safety cover by removing the single screw holding it in
place.
Connect the inputs from the cells to the terminals in accordance with the system setup
5
assignments. Refer to the wiring diagram provided with the cells and to Figure 6-1*.
* There are 2 resistors, one for cel l 2 i nput and one for cell 2 thermist or i nput , which are installed in every unit at
the factory. These resistors are required if only cell 1 input is being utilized. If cell 2 input is being utilized, remove
these resistors from the unit. These resist ors can be saved and used as Precision Check Resistors. See
Appendix D for details.
If analog outputs are to be used, connect the outputs from the Analyzer/Controller terminals
6
in accordance with the system setup assignments. Refer to the wiring diagrams provided
with the field devices receiving the signals and to Figures 6-1.
If the relay outputs are to be used, leave the unit open and powered down. See 6.4.
7
If the relays will not be used, replace the safety cover and secure it with the screw.
8
9 Close the case and power up the unit. Do not apply power with the case open.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual
6-5
Conductivity/Resistivity Analyzer/Controller
Case (as viewed from front)
Relay Terminals
(optional)
Note 3
No. 2 Temp.
Compensator
No. 1 Temp.
Compensator
Cell 2
Elect rod e s
Cell 1
Elect rod e s
Note 4
No. 2 Te mp.
Compensator
No. 1 Te mp.
Compensator
Electrodes
Electrodes
Note 4
Note 3
Cell 2
Cell 1
SH
G
R
G
NO
COM
NC
NO
COM
NC
R
W
K
W
K
mA
+10
+1
+
-
VC
Voltag e & Current
Output Terminals
Two-Ce ll Cat. 9782 with Output/relays
Case (as viewed from front)
OUT1-
SH
G
R
G
R
W
K
W
K
1
2
3
4
5
6
OUT1+
OUT2OUT2+
OUT3OUT3+
1
2
3
4
5
6
7
8
9
NO
COM
NC
NO
COM
NC
I(+)
I(-)
+10V 2000 min
VCom
+1V 200 min
1
2
3
4
5
6
7
8
9
NC
COM
NO
NC
COM
NO
L1 (K)
L2 /N
Power &
Relay Terminals
Output Board
Connections
(4-20 mA)
NC
Com
NO
NC
Com
NO
L1(K)
L2/N
Power &
Relay Terminals
Relay 3
Note 6
Relay 4
Note 6
4-20 mA 600 min
Relay 2
Note 1
Relay 1
Note 1
120V/240 V
15A
50-60 Hz
Note 5
Relay 2
Note 1
Relay 1
Note 1
120V/240V 15A
50- 60 Hz
Note 5
NOTES:
1. Relay 1 & 2 contacts max. ratings
(Resistive Load)
Current: 2A AC or DC
Voltage: 250 VAC, 220 VDC
Switching Power: 125VA, AC: 60 W , DC.
2. See Cell Connection D iagram or directions
for wiring restrictions.
3. Coaxial cable used with greater than 20 ft.
cell/Analyzer seperation with Standard
Range instruments only.
4. For pure water samples in plastic piping,
ground the black cell electr ode lead near
the cell. Alternately, connect to the 9782
ground screw as show n dott ed. DO NO T
ground 10 , 25 or 50 cons tant cells.
5. Analyzer is factory set for 120V operation.
For 240V operation, see "Power
Connections" in this manual.
6. Re la y 3 & 4 contac t ra t i ng s 3A @ 12 0 V AC /
28 VDC resistive.
Color Code
K- black
W- white
G- green
R- red
B- blue
N- brown
Y- yellow
A- gray
V- violet
P- pi n k
S- slate
T- ta n
O- orange
Two-Cel l Cat. 9782 - Mul tiO ptions
9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual 7/996-6
a/n 23177
Figure 6-1 Terminal Connections
6.4 Wiring Relays
6.4.1 Installation
Introduction
Every 9782 model includes two relay outputs that can be used with special features such as
AutoClean and output range status indication, or to perform On/Off, Pulse Frequency Type or
Duration Adjusting Type control, or for alarm annunication. In additon to these two standard
relays, two more are available as an option.
The Analyzer/Controller can be programmed for these relays to de-energize on alarm, or to
energize on alarm. Use the maintenance menu to specify relay action. (see 10.11.)
If set to de-energize on alarm, this means that when an alarm occurs (or the discrete control point
becomes active), the relay coil will be de-energized. The NC contacts will then be closed and the
NO contacts will be open. Conversely, during normal non-alarm operation (or when the control
point is not active) the NC contacts will be open, and the NO contacts will be closed.
If de-energize on alarm is selected, a power loss will force all relays to the same position as an
alarm condition.
Input and Output Wiring
The relay contact maximum ratings are in Table 6-3.
Current, Standard:
Current, Optional:
Voltage, Standard:
Switching Power, Standard:
CAUTION
Alarm circuits are not internally fused in the Analyzer/Controller. Provision for fuses in external
circuits is recommended.
Procedure
Follow the procedure in Table 6-3 to install relay output wiring.
Table 6-3 Relay Contact Maximum Ratings
0.6 amps at 120/240 Vdc, 0.6 amps at 110 Vdc,
2 amps at 30 Vdc
3A, 120 Vac or 28 Vdc
120/240 Vac
ac - 125 VA resistive
dc - 60 watts resistive
If the RC arc suppression circuits in the Analyzer/Controller interfere with other devices at your
site, refer to 6.4.2 for instructions for disconnecting the suppression circuits.
If a relay is being used to indicate automatic output range change, see 6.4.3 for guidance in
wiring a device to the relay.
7/99 9782 Series Conductivity/Resistivity Analyzer/Controller - Operator’s Manual
6-7
Conductivity/Resistivity Analyzer/Controller
WARNING
While the unit is powered, a potentially lethal shock hazard exists inside the case. Do not
open the case while the unit is powered. More than one switch may be required to
disconnect power.
Table 6-4 Procedure for Wiring Relays
Step Action
1
If you have not already noted the relay assignments made during I/IO setup, go to I/O
SETUP on the main menu to view the display showing relay output use. Note the
assignments shown. You must wire the unit to match these assignments in order for the
unit to work as expected. (See Section 5.)
2 Turn off the power to the Analyzer/Controller. More than one switch may be required
to remove power.
3 With the power off, open the case:
•
Grasp the bottom center portion of the front bezel and pull it downward and toward you
slightly to disengage the bottom of the bezel from the edge of the case.
•
Lift the bezel gently to disengage it from the top edge of the case.
•
Swing the bezel to the left. (The bezel and display assembly is mounted on pivot arms.)
The safety cover with its warning label will be visible.
4 With the power off remove the safety cover by removing the single screw holding it in
place.
Wire the relays in accordance with the system setup assignments. Refer to the wiring
5
diagram provided with the external device receiving the output and to Figure 6-1.
WARNING
An external disconnect switch is required for any hazardous voltage connections to the relay outputs.
Replace the safety cover and secure it with the screw.
6
7 Close the case and power up the unit. Do not apply power until the case is closed.
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6.4.2 Disconnecting RC Arc Suppression Circuits
Introduction
Relay contacts are protected by RC arc suppression circuits. Alternating current leakage through
these circuits may be sufficient to trigger very light ac loads such as neon bulbs, PLC logic
inputs, continuity testers, etc. If this leakage cannot be tolerated, the suppression circuits may be
disconnected as described below.
Procedure
Follow the procedure in Table 6-5 to disconnect the RC arc suppression circuits.
Table 6-5 Procedure for Disconnecting RC Arc Suppression Circuits
Step Action
1 Turn off the power to the Analyzer/Controller. More than one switch may be required
to remove power.
2 With the power off, open the case:
•
Grasp the bottom center portion of the front bezel and pull it downward and toward you
slightly to disengage the bottom of the bezel from the edge of the case.
•
Lift the bezel gently to disengage it from the top edge of the case.
•
Swing the bezel to the left. (The bezel and display assembly is mounted on pivot arms.)
The safety cover with its warning label will be visible.
Input and Output Wiring
3 With the power off remove the safety cover by removing the single screw holding it in
place.
Disconnect and tag all wiring from the terminal boards.
4
Remove the circuit card retainer clamp at the top of the case. Then slide all the circuit cards
5
half way out of the case.
On the right-most vertical printed circuit card (power supply) remove 330 ohm resistors R29
6
and R30 for Relay 1, and R31 and R32 for Relay 2 from the upper corner of the card.
If the auxiliary relays are installed, also remove 330 ohm resistors R39, R40, R44 and R45
7
from those optional assemblies (see Figure 6-1).
Reconnect all wiring removed in Step 4.
8
Replace the safety cover and secure it with the screw.
9
10 Close the case and power up the unit. Do not apply power until the case is closed.
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Conductivity/Resistivity Analyzer/Controller
6.4.3 Wiring a Device to the Relay Indicating Output Range Status
Introduction
If the automatic output range change feature is selected during I/O setup, one relay is dedicated
to this function. The relay can be used to control an indicator, or to switch the output to a second
channel of a multipoint recorder when the range change occurs (see Figure 6-2). Check the
current relay assignments as described in Section 5 to determine whether a relay was assigned to
this feature.
This feature closes contacts NC-COM when the output is scaled to the low range (Range 1 in
Figure 6-2) and closes contacts NO-COM when scaled to the high range (Range 2 in Figure
6-2).
Interconnections
The range change capability illustrated in Figure 6-2 is accomplished with interconnections
shown in Figure 6-3. Similar range identification could be obtained using a 2-pen or event-pen
recorder.
Point 1/Terminals 1 - low range (0-1µS/cm)
Point 2/Terminals 2 - high range (0-10 µS/cm)
Resistors “R” across the recorder inputs are needed to ensure that the unused point will remain at
the low end of scale. The resistance value can be anything from 500 ohms to 1 Mohm.
(simulated
Time
condenser
leak)
Range 1 0 .2 .4 .6 .8 1.0
Range 2 0 2 4 6 8 10
a/n 23178
Figure 6-2 Sample Multipoint Recorder Chart Illustrating Auto Output Range
Change for Steam Condensate Monitoring
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Multi-point Recorder
Input Terminal Boar d
Input and Output Wiring
9782 Conductivity Analyzer
6
5
4
3
2
R
1
6
5
4
3
2
1
R
1
2
3
+
mA
-
+10
VC
+1
4
5
6
7
8
9
NO
NC
where R = 250 ohms
a/n 23179
Figure 6-3 Interconnections between 9782 and Recorder with Range Identi f ication
by Point Change
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Conductivity/Resistivity Analyzer/Controller
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7.1 Overview
Introduction
The AutoClean feature periodically rinses the cells automatically as described in this section. To
take advantage of this feature you must:
• Select it during I/O setup (see Section 5).
• Set the clock, and specify the frequency and duration of the rinse (see Section 5).
• Wire the relay assigned to this operation during I/O setup to operate the necessary valves.
(See Section 6 for relay wiring.)
• Install piping and valves as diagrammed in this section.
AutoClean Theory and Piping
7. AutoClean Theory and Piping
What’s in this section?
The topics in this section are listed below.
7.1 Overview 7-1
7.2 AutoClean Sequence and Piping 7-2
Topic See Page
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Conductivity/Resistivity Analyzer/Controller
7.2 AutoClean Sequence and Piping
Rinse sequence
The AutoClean operation occurs at the configured intervals. (It can also be initiated by the
operator; see Sub-Section 5.8 for details.) The sequence is described below.
1 All alarm action is held at existing levels. The outputs are also held throughout the
AutoClean operation.
Pressing the DISPLAY key will call up a special display that shows how much time
remains until the start of the next scheduled AutoClean sequence. While the cleaning
operation is taking place, “AUTO CLEAN” is displayed on the alarm stripe on the Time
Remaining display. The clock will show 00:00:00.
2 Relay 1 activates 3-way solenoid valve S1 (see Figure 7-1) to direct rinsing fluid to the
cells for the configured rinse duration (1 to 1999 seconds). If the measured sample is
normally returned to the process but quantities of rinsing fluid cannot be tolerated there,
use an additional 3-way solenoid valve S4. It is activated simultaneously with S1 to divert
the discharge to drain.
3 At the end of the configured rinse time Relay 1 de-activates solenoid valve S1 (and S4, if
used). After the configured delay period (1 to 1999 seconds) the Analyzer/Controller
resumes sampling the process. (During the resume delay the “AUTO CLEAN” message
flashes.) Note that even with S4 for diversion, one system volume of washing fluid will
pass to the process at this point.
4 The “AUTO CLEAN” message is cleared.
Note that the operator can make the operation pause using the “soft key” on the special
AutoClean Time Remaining display. If the operator does not remove the pause by pressing the
PAUSE soft key again, the Analyzer/Controller will resume normal operation after 20 minutes.
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rinse/cleaning
/
solution
S1
AutoClean Theory and Piping
9782
to process
cel l
S4
to drain
proces s
sample
Items outside this area
provide d by us e r
Automatic Wash Setup
Outputs & Alarms Held
Ri ns e Du ra tion (se con ds )
Relay 1 Activated
Resume Delay Time (seconds)
Normal Oper ati on
0.222" 1.709"
0.588"
TIM E
Interv al Between Rinses
(day s or hour s)
AutoClean Operation
Figure 7-1 Automatic Cell Wash Setup
Select valves and fittings with appropriate pressure ratings
Make the process connections as shown in Figure 7-1. Be sure that valves and fittings (S1) have
sufficient pressure ratings to withstand pressure peaks which will occur when process flow is
blocked.
a
n 23185
Minimize liquid volume in system
Keep pipe sizes small and couplings close to minimize the liquid volume in the system. Smaller
volumes require less time to rinse.
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Conductivity/Resistivity Analyzer/Controller
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8.1 Overview
Introduction
Each type of cell has an associated cell constant entered during I/O setup (see Section 5). This
number is part of the cell model number. However, for greater precision, every Honeywell cell is
individually tested at the factory, and a calibration factor unique to that cell is determined. The
cal factor for a cell can be found on the plastic tag hanging from the cell lead wires. Instructions
for entering this cell cal factor are in 8.3.
For some conductivity applications even greater accuracy is required. For those applications it is
possible to perform a calibration trim procedure. The Analyzer/Controller’s reading can be
adjusted while the associated cell is measuring a reference solution of known conductivity, as
described in 8.4. The same procedure can be used to adjust the Analyzer/Controller’s reading
while the cell is in the process, if a reference instrument is used to determine the conductivity of
the process. In this case the process fluid becomes the “reference solution”.
Calibration
8. Calibration
Calibration trim can be removed as described in 8.5
For accurate measurement of total dissolved solids (TDS) a conversion factor is entered for each
cell as described in 8.6.
ATTENTION
Any time a cold reset is performed, the calibration trim and TDS values will be removed.
The cal factor will be reset to match the cell constant.
What’s in this section?
The topics in this section are listed below.
8.1 Overview 8-1
8.2 Recommendations for Successful Measurement and Calibration 8-3
8.3 Entering the Cal Factor for Each Cell 8-4
8.4 Performing Calibration Trim 8-5
8.5 Removing Calibration Trim Values 8-7
8.6 Determining and Entering the TDS Conversion Factor 8-8
Topic See Page
Calibration menu customized for different configurations
The choices available on the menu displayed when CALIBRATION is selected from the main
menu depend on the choices made for solution temperation compensation during I/O setup (see
Step 13 in Table 5-1).
If neither cell’s solution temperature setup uses total dissolved solids (TDS), then the calibration
menu contains the following choices:
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Conductivity/Resistivity Analyzer/Controller
CELL CAL FACTOR
CAL TRIM C1
CAL TIRM C2
REMOVE CAL TRIM C1
REMOVE CAL TRIM C2
If the Cell 1 solution temperature compensation is set up without TDS, and Cell 2 with
TDS,
then the calibration menu will be:
CELL CAL FACTOR
CAL TRIM C1
TDS CVSN FACTOR C2
REMOVE CAL TRIM C1
REMOVE CAL TRIM C2
If both cells’ solution temperature compensation is set up with TDS, then the calibration menu
will be:
CELL CAL FACTOR
TDS CVSN FACTOR C1
TDS CVSN FACTOR C2
REMOVE CAL TRIM C1
REMOVE CAL TRIM C2
Therefore, the screens on your unit may not match exactly the calibration menus used in the
procedure tables in this section.
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