Rosemount 1054B-DC Dual Cell Conductivity/Resistivity Microprocessor Manuals & Guides

Model 1054B DC
Dual Cell Conductivity/Resistivity Microprocessor Analyzer
Instruction Manual
PN 51-1054BDC/rev.B April 2003
WARNING
ELECTRICAL
SHOCK HAZARD
Relay contacts made to separate power sources must be disconnected before servicing.
Electrical installation must be in accordance with the National Electrical Code (ANSI/NFPA-70) and/or any other applicable national or local codes.
Unused cable conduit entries must be securely sealed by non-flammable closures to provide enclosure integrity in compliance with personal safety and environmental protection requirements.
For safety and proper performance this instru­ment must be connected to a properly grounded three-wire power source.
Proper relay use and configuration is the respon­sibility of the user.
Do not operate this instrument without front cover secured. Refer installation, operation and servicing to qualified personnel.
Be sure to disconnect all hazardous voltage before opening the enclosure.
The unused conduit openings need to be sealed with NEMA 4X or IP65 conduit plugs to maintain the ingress protection rating (IP65).
No external connection to the instrument of more than 43V peak allowed with the exception of power and relay terminals. Any violation will impair the safety protection provided.
ESSENTIAL INSTRUCTIONS
READ THIS P
AGE BEFORE PRO-
CEEDING!
Rosemount Analytical designs, manufactures, and tests its products to meet many national and international stan­dards. Because these instruments are sophisticated tech­nical products, you must properly install, use, and maintain them to ensure they continue to operate within their normal specifications. The following instructions must be adhered to and integrated into your safety program when installing, using, and maintaining Rosemount Analytical products. Failure to follow the proper instructions may cause any one of the following situations to occur: Loss of life; personal injury; property damage; damage to this instrument; and warranty invalidation.
• Read all instructions prior to installing, operating, and servicing the product. If this Instruction Manual is not the correct manual, telephone 1-949-757-8500 and the requested manual will be provided. Save this Instruction Manual for future reference.
• If you do not understand any of the instructions, contact your Rosemount representative for clarification.
• Follow all warnings, cautions, and instructions marked on and supplied with the product.
• Inform and educate your personnel in the proper instal­lation, operation, and maintenance of the product.
• Install your equipment as specified in the Installation Instructions of the appropriate Instruction Manual and per applicable local and national codes. Connect all products to the proper electrical and pressure sources.
• To ensure proper performance, use qualified personnel to install, operate, update, program, and maintain the product.
• When replacement parts are required, ensure that qual­ified people use replacement parts specified by Rosemount. Unauthorized parts and procedures can affect the product’s performance and place the safe operation of your process at risk. Look alike substitu­tions may result in fire, electrical hazards, or improper operation.
• Ensure that all equipment doors are closed and protec­tive covers are in place, except when maintenance is being performed by qualified persons, to prevent electri­cal shock and personal injury.
WARNING
This product is not intended for use in the light industrial, residential or commercial environment, per the instrument’s certification to EN50081-2.
Emerson Process Management Rosemount Analytical Inc.
2400 Barranca Parkway Irvine, CA 92606 USA Tel: (949) 757-8500 Fax: (949) 474-7250
http://www.RAuniloc.com
© Rosemount Analytical Inc. 2001
About This Document
This manual contains instructions for installation and operation of the Model 1054BDC Dual Cell Conductivity/Resistivity Microprocessor Analyzer.
The following list provides notes concerning all revisions of this document.
Rev
. Level
Date Notes
A 5/96-1/00 This is the initial release of the product manual. The manual
has been reformatted to reflect the Emerson documentation style and updated to reflect any changes in the product offering.
B 4/03 Update CE information.
MODEL 1054B DC TABLE OF CONTENTS
MODEL 1054B DC CONDUCTIVITY
MICROPROCESSOR ANALYZER
TABLE OF CONTENTS
Section Title Page
1.0 DESCRIPTION AND SPECIFICATIONS........................................................... 1
1.1 Features and Applications................................................................................. 1
1.2 Physical Specifications - General...................................................................... 2
1.3 Analyzer Specifications...................................................................................... 3
1.4 Ordering Information.......................................................................................... 4
2.0 INSTALLATION.................................................................................................. 5
2.1 General.............................................................................................................. 5
2.2 Unpacking and Inspection................................................................................. 5
2.3 Mechanical Installations .................................................................................... 5
2.4 Electrical Wiring................................................................................................. 5
2.5 Sensor Installation............................................................................................. 6
3.0 DESCRIPTION OF CONTROLS....................................................................... 12
3.1 Keyboard Functions........................................................................................... 12
4.0 CONFIGURATION............................................................................................. 17
4.1 General.............................................................................................................. 17
4.2 Process Variable ............................................................................................... 17
4.3 Alarm 1 and 2 ................................................................................................... 19
4.4 Temperature Configuration................................................................................ 21
4.5 Current Output .................................................................................................. 21
4.6 Defaults ............................................................................................................. 22
4.7 Alarm Setpoint................................................................................................... 22
4.8 Output Scale Expansion.................................................................................... 24
4.9 Simulate Output................................................................................................. 25
4.10 Display Cycle..................................................................................................... 26
5.0 START-UPAND CALIBRATION........................................................................ 27
5.1 Start-Up and Calibration.................................................................................... 27
6.0 KEYBOARD SECURITY ................................................................................... 29
6.1 Keyboard Security............................................................................................. 29
7.0 THEORY OF OPERATION................................................................................ 30
7.1 Theory of Operation........................................................................................... 30
8.0 DIAGNOSTICS AND TROUBLESHOOTING .................................................... 31
8.1 Diagnostics........................................................................................................ 31
8.2 Troubleshooting................................................................................................. 32
8.3 Instrument Maintenance.................................................................................... 35
9.0 RETURN OF MATERIAL................................................................................... 36
9.1 General.............................................................................................................. 36
9.2 Warranty Repair................................................................................................. 36
9.3 Non Warranty Repair......................................................................................... 36
i
MODEL 1054B DC TABLE OF CONTENTS
TABLE OF CONTENTS CONT'D.
LIST OF FIGURES
Figure No. Title Page
2-1 Panel Mounting Cutout...................................................................................... 7
2-2 Panel Mounting Tab Installation......................................................................... 8
2-3 Pipe Mounting Installation ................................................................................. 9
2-4 Electrical Wiring................................................................................................. 10
2-5 Sensor Wiring.................................................................................................... 11
3-1 Function Select on Keypad................................................................................ 12
3-2 Accessing Editing Function............................................................................... 12
3-3 Accessing Configuration Menus........................................................................ 12
3-4 LCD Display....................................................................................................... 13
3-5 Set Menu Items................................................................................................. 16
4-1 Process Variable Configuration......................................................................... 19
4-2 Alarm 1 and Alarm 2 Configuration.................................................................... 19
4-3 Alarm 3 Configuration........................................................................................ 20
4-4 Temperature Configuration................................................................................ 21
4-5 Current Output Configuration............................................................................ 22
4-6 Default Configuration......................................................................................... 22
4-7 Alarm Setpoint................................................................................................... 23
4-8 Output Scale Expansion.................................................................................... 24
4-9 Simulate Current Output.................................................................................... 25
4-10 Display Cycle Configuration.............................................................................. 26
7-1 Resistance vs. Temperature.............................................................................. 30
8-1 Simulate Conductivity Input............................................................................... 35
LIST OF TABLES
Table No. Title Page
3-1 Key Description................................................................................................. 14
3-2 Information Mnemonics..................................................................................... 15
3-3 Set Function Mnemonics................................................................................... 15
4-1 Configuration Work Sheet ................................................................................. 18
4-2 Relay States for Various Conditions and Alarm/Default Configurations ............ 23
8-1 Fault Mnemonics............................................................................................... 31
8-2 RTD Resistance Values..................................................................................... 31
8-3 Troubleshooting Guide ...................................................................................... 34
ii
1
MODEL 1054B DC SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
1.1 FEATURES AND APPLICATIONS
The Model 1054B Microprocessor Analyzers, with the appropriate sensors, are designed to continuously meas­ure and control pH, ORP, conductivity, resistivity, ratio, percent concentration, dissolved oxygen, ozone or total free chlorine in industrial and municipal processes.
The Model 1054B Dual Conductivity/Resistivity Analyzer offers the flexibility of one model for measurement of two cell inputs with two assignable outputs of conductivity, resistivity and/or temperature. The analyzer is housed in a NEMA 4X (IP65) weatherproof, corrosion-resistant, flame retardant enclosure suitable for panel, pipe or wall mounting. All functions are accessed through the front panel membrane keyboard which features tactile feed­back. The display indicates the process variable values in engineering units as well as temperature, alarm sta­tus, hold output and fault conditions.
The 1054B DC can transmit two independent, isolated current outputs which are continuously expandable over the measurement range. Output dampening of 0-255 seconds is user selectable.
The output and relay default settings are user selectable for hold or fault mode operation. The hold output function allows manual control during routine sensor maintenance.
Continuous self diagnostics alert the operator to faults due to analyzer electronics, integral RTD failures, open wiring and process variable range problems. In the event of a fault condition or hold mode diagnosed by the ana­lyzer, the output will be set to a preset or last process value and the relays will be set to their default settings.
Three alarms are a standard feature on the Model 1054B DC and are programmable for either high or low operation. Alarm 2 may be programmed as a fault or process variable alarm. Alarm 3 may be configured as a temperature alarm only. All alarms feature independ­ent setpoints, adjustable hysteresis and time delay action. The time delay is convenient when an alarm is used for corrective action, such as shutting down a demineralizer for regeneration. Time delay will ignore a temporary breakthrough and prevent shutting down a de-mineralizer unit prematurely.
Automatic temperature compensation is standard. The process temperature is accurately measured by an inte­gral RTD in the sensor assembly, either a PT100 or PT1000, which is automatically recognized by the ana­lyzer. The temperature(s) can be displayed in either °C or °F. For greater accuracy, the temperature indication may be standardized to the process temperature.
Calibration is easily accomplished by entering the cell calibration constant (shown in the sensor tag) via the analyzer keypad. Standardization can also be made with the cell in process of known conductivity (resistivi­ty).
Analyzer settings may be protected against accidental or unauthorized changes by a user selectable security code.
• TWO CELL INPUTS OR TEMPERATURE ASSIGNABLE TO TWO ISOLATED OUTPUTS.
• ACCURATE TEMPERATURE COMPENSATED AND RAW READINGS for high purity water.
• UP TO 200 FEET (61m) SENSOR CABLE LENGTH (to 500 ft with extra shielding).
• THREE ASSIGNABLE RELAYS for process variable, temperature, or diagnostics.
• DISPLAY CAN AUTO CYCLE CELL 1 AND 2.
• NEMA 4X (IP65) ENCLOSURE.
• SECURITY CODE CAPABILITY.
MODEL 1054B DC SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
2
1.2 PHYSICAL SPECIFICATIONS -GENERAL Enclosure: Black ABS, with interior conductive coating,
NEMA 4X, IP65, CSA Enclosure 4, 144 X 144 X 192 mm (5.7 X 5.7 X 7.6 in.)
Front Panel: Membrane keyboard with tactile feed-
back and user selectable security.
Digital Display: Code 01 - Black on grey LCD
Code 02 - Red LED Character Height: 18mm (0.7 in.)
Electrical Classification:
FM Class I, Div. 2, Group A thru D
Relays: 28 Vdc relays - 5.0 amps resistive only
150 mA - Groups A& B; 400 mA - Group C; 540 mA - Group D; Ci = 0; Li = 0
CSA Class I, Div. 2, Group Athru D
Relays: 28 Vdc, 110 Vac & 230 Vac
5.0 Amps resistive only
Power: 100 - 127 VAC, 50/60 Hz ±6%, 4.0 W
200 - 253 VAC, 50/60 Hz ±6%, 4.0 W
Current Output: Isolated, 0-20 mA or 4-20 mA into
600 ohms maximum load at 115/230 Vac or 550 ohms maximum load at 100/200 Vac, direct or reverse, Output Dampening: 0-255 sec
Operating Temperature: -10 to 65°C (14 to 149°F) Storage Temperature: -30 to 85°C (-22 to 185°F) EMI/RFI: EN61326 LVD: EN61010-1 Ambient Humidity: LED max 95% RH (LCD max
85% RH @ 50°C)
Alarms: Three. Independently field selectable: High
or Low. Alarm 3 is a temperature alarm only. Alarm 2 configurable as a process or fault alarm. Time Delay 0 to 254 seconds. Setpoints are contin­uously adjustable. Hysteresis is adjustable up to 25% full scale for low side/High Alarm and high side/Low Alarm
Relay Contacts:Epoxy Sealed Form Acontacts, SPST ,
Normally open
Resistive Inductive 28 VDC 5.0 Amps 3.0 Amps 1 15 VAC 5.0 Amps 3.0 Amps 230 VAC 3.0 Amp s 1.5 Amps
Weight/Shipping Weight: 1.1 kg/1.6 kg (2.5 lb/3.5 lb)
The Model 1054B DC Dual Cell Analyzer measures conductivity and/or resistivity in conventional and ultrapure water applications. This time tested technology has been applied successfully to demineralizer, reverse osmosis, and distillation applications for decades.In this single analyzer, true temperature compensation for monitoring water containing trace mineral contaminants is software selectable among the following:
1. Compensation for pure water contaminated with trace amounts of sodium chloride (standard).
2. Cation compensation for power plant applications containing ammonia or amines. Cation compensation may also be used in semiconductor etch rinse applications where the rinse water contains traces of acids.
3. Uncompensated conductivity for applications such as required by United States Pharmacopeia 23 (USP 23) specifications. The analyzer can output temperature separately for this application. NIST traceable calibration certificates are available (consult factory).
The analyzer may be used with sensors having cable length of up to 200 ft (61 m). The cable length may be up to 500 ft (152m) with extra shielding (contact factory).
3
MODEL 1054B DC SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
1.3 ANALYZER SPECIFICATIONS @ 25°C
Measurement Range: 0-20,000 µS/cm or
0-50.00 megohms-cm
Output Scale: Any range within measurement Measurement Accuracy:
Conductivity Range:
2.0 to 2,000 µS-cm ±0.5% of reading and ±0.01 µS-cm
1.0 to 5,000 µS-cm ±1.0% of reading and ±0.05 µS-cm
0.2 to 20,000 µS-cm ±2.0% of reading and ±0.02 µS-cm
Resistivity: ±0.2 megohms-cm
temperature corrected resistivity to 25°C
T emperature Accuracy: ±.1°C (0-100°C),
±.2°C (0-100°C) for cable lengths over 50 ft.
Temperature Resolution: 0.1°C Stability: ±0.25% of output range/month,
non-cumulative
Temperature Compensation: 0 to 100°C (32 to 212°F)
Neutral salt or Cation
Temperature Measurement: 0-135°C
Resistivity
(-cm)
Conductivity
(µS/cm)
.05k
20,000µS
2,000µS
500µS
200µS
100µS
20µS
10µS
2µS
1µS
.2µS
.1µS
.05µS
.02µS
.5k
2k
5k
10k
50k
100k
500k
1M
5M
10M
20M
50M
Operating Ranges for Various Cells Constants (not to scale)
1.0 cm
-1
10.0 cm
-1
0.01 cm
-1
0.1 cm
-1
CELLS FOR MODEL 1054B DC
Model Description Cell Const cm-
1
400-11/400VP-11 Screw-in 0.01 400-11-36/400VP-11-36 Screw in with 6 in. insertion 0.01 400-11-50 Screw in with 50 ft. cable 0.01 451 Dip cell 0.01 455, 404-11 Flow cell, stainless steel 0.01 PD-441 Flow cell, plastic 0.01 IB-441 Plastic ball valve cell 0.01 IB(SS)-441, 402-11 Ball valve cell, stainless steel 0.01
460, 403-11-20/403VP 1-1/2 in. Sanitary fitting
0.01
456, 403-11-21/403VP 2 in. Sanitary fitting
0.01 400-12 Screw in cell 0.1 452 Dip cell 0.1 461, 404-12 Flow cell 0.1 IB(SS)442, 402-12 Ball valve cell, stainless steel 0.1 400-13/400VP-13 Screw-in cell 1.0 453A Dip cell 1.0 402-13, IB(SS)-443A Ball valve cell, stainless steel 1.0 401-14 Screw-in cell 10.0 454 Dip cell 10.0 402-11, IB(SS)-444 Ball valve cell, stainless steel 10.0
OPERATING RANGES
Cell Constants (cm-1) Conductivity Range Resistivity Range
2
0.01 .02µS/cm to 20µS/cm .05M to 50M
0.1 0.2µS/cm to 200µS/cm
1
5 k to 5M
1
1.0 2µS/cm to 2000µS/cm
1
.5 k to 500k
1
10.0 20µS/cm to 20,000µS/cm1.05 k to 50k
1
NOTE:
1.The notation k represents k-ohms. The notation M represents megohms. 1000= 1k. 1000 k= 1 M.
2. Ranges are given in absolute (non-temperature compensated) conductivity and resistivity.
4
MODEL 1054B DC SECTION 1.0
DESCRIPTION AND SPECIFICATIONS
1054B DC REPLACEMENT PARTS AND ACCESSORIES
PN ACCESSORIES
2001492 Tag, Stainless Steel, Specify Marking 23053-00 Mounting Bracket, 2-inch Pipe
PN REPLACEMENT PARTS
22966-00 PCB, LCD, Digital Display 23025-01 Panel Mounting Kit 23695-20 Keyboard Overlay, LCD Version 23695-21 Keyboard Overlay, LED Version 23744-00 PCB, Motherboard 23705-01 PCB, CPU, Dual Cell 23739-00 PCB, Power Supply 32937-00 Gasket Rear Cover 32938-00 Gasket Front Cover 33469-00 Enclosure Body 33470-00 Enclosure, Rear Cover 9100157 Fuse, .10A, 3AB, 250V, Slo-Blow 9100160 Fuse, .250A, 125V 9100189 Fuse, .755A, 125V
1.4 ORDERING INFORMATION
The Model 1054B Dual Cell Microprocessor Analyzer is housed in a corrosion resistant, weatherproof enclo- sure and operates on either 115 or 230 VAC, 50/60 Hz power. Standard features include two independent con­ductivity or resistivity inputs, two isolated current outputs, three alarms, and automatic temperature compensation.
MODEL
1054B MICROPROCESSOR ANALYZER (3.5 lb/1.5 kg)
1054B DC 01 EXAMPLE
Code Measurement
DC Dual Cell Conductivity/Resistivity
Code Display
01 LCD Display 02 LED Display
5
MODEL 1054B DC SECTION 2.0
INSTALLATION
SECTION 2.0
INSTALLATION
2.1 GENERAL. This analyzer's enclosure is suitable
for outdoor use. However, it should be located in an area where temperature extremes and vibrations are minimized or absent. Installation must be performed by a trained technician.
2.2 UNPACKING AND INSPECTION. Inspect the analyzer for shipping damage. If damaged, notify the carrier immediately. Confirm that all items shown on the packing list are present. Notify Rosemount Analytical if items are missing.
2.3 MECHANICAL INSTALLATION. Select an instal­lation site that is at least one foot from any high volt­age conduit, has easy access for operating personnel, and is not in direct sunlight. Mount the analyzer as fol­lows:
1. Remove the four screws that secure the rear cover of the enclosure.
2. Remove the four screws holding the front panel assembly of the enclosure and carefully pull the front panel and connected printed circuit boards straight out.
3. Follow the procedure for the appropriate mounting configuration: Section 2.3.1 for panel mounting and Section 2.3.2 for pipe mounting.
2.3.1 Panel Mounting (Standard). The Model 1054B
is designed to fit into a DIN standard 137.9 mm X
137.9 mm (5.43 inch X 5.43 inch) panel cutout
(Refer to Figures 2-1 and 2-2).
1. Prepare the analyzer as described in Section 2.3.
2. Install the mounting latches as described in Figure 2-2 (latches are shown oversize for clarity). If the latches are not installed exactly as shown, they will not work correctly. The screws provided are self-tapping. Tap the screw the full depth of the mounting latch (refer to side view) leaving a gap greater than the thickness of the cutout panel.
3. Align the latches as shown and insert the analyz­er enclosure through the front of the panel cutout. Tighten the screws for a firm fit. To avoid damag­ing the mounting latches, do not use excessive force.
4. Replace the front panel assembly. Circuit boards must align with the slots on the inside of the enclo­sure. Replace the door and four front panel screws.
2.3.2 Pipe Mounting (PN 23053-00). The 2 in. pipe
mounting bracket includes a metal plate with a cutout for the analyzer (Refer to Section 2.3 for mounting the analyzer into the plate). Mounting details are shown in Figure 2-3.
2.4 ELECTRICAL WIRING. The Model 1054B has
three conduit openings in the bottom rear of the ana­lyzer housing which will accommodate 1/2 inch con­duit fittings. From the front view, the conduit opening on the left is for sensor wiring; the center is for signal output and the opening on the right is for alarm, and AC connections. Sensor wiring should always be run in a separate conduit from power wiring. AC power wiring should be 14 gauge or greater.
NOTE
For best EMI/RFI protection the output cable should be shielded and enclosed in an earth grounded rigid metal conduit. When wiring directly to the instrument connect the output cable’s outer shield to the transmitter’s earth ground via ter­minal 8 on TB3 (Fig. 2-4). The sensor cable should also be shielded. When wiring directly to the instrument connect the sensor cable’s outer shield to the transmitter’s earth ground via terminal 8 on TB-2 (Fig 2-4.) If the sensor cable's outer shield is braided an appropriate metal cable gland fitting may be used to connect to braid to earth ground via the instrument case.
The user must provide a means to dis­connect the main power supply in the form of circuit breaker or switch. The cir­cuit breaker or the switch must be locat­ed in close proximity to the instrument and identified as the disconnecting device for the instrument
6
MODEL 1054B DC SECTION 2.0
INSTALLATION
2.4.1 Power Input Wiring. The Model 1054B can be
configured for either 115 VAC or 230 VAC power. Connect AC power to TB1-8 and -9 (115 VAC) or TB1-
7 and -8 (230 VAC) ground to the ground terminal at TB3-8 (refer to Figure 2-4).
CAUTION
The sensitivity and stability of the analyzer will be impaired if the input wiring is not grounded. DO NOT apply power to the analyzer until all electrical connections are verified and secure. The following precau­tions are a guide using UL 508 as a safe­guard for personnel and property.
1. AC connections and grounding must be in compli­ance with UL 508 and/or local electrical codes.
2. The metal stiffener is required to provide support and proper electrical continuity between conduit fittings.
3. This type 4/4X enclosure requires a conduit hub or equivalent that provides watertight connect, REF UL 508-26.10.
4. Watertight fittings/hubs that comply with the requirements of UL 514B are to be used.
5. Conduit hubs are to be connected to the conduit before the hub is connected to the enclosure, REF UL 508-26.10.
6. If the metal support plate is not used, plastic fit­tings must be used to prevent structural damage to the enclosure. Also, appropriate grounding lug and awg conductor must be used with the plastic fittings.
2.4.2 Output Wiring. The signal output and alarm
connections are made to terminals 1 – 6 of TB1 and TB3 1 – 4. (Refer to Figure 2-4).
2.4.3 Sensor Wiring. See Figure 2-5.
2.5 SENSOR INSTALLATION.
The Model 1054B DC is designed to work with 400 Series, 140 Series, and 150/160 sensors. Refer to Figure 2-4 and Figure 2-5 for sensor wiring. Wire col­ors are: BLACK is CELL-1/2 TB2-1/5: WHITE is GROUND TB2-2/6: RED is RTD-1/2 TB2-3/7.
2.5.1 Cell Location. A mounting location should be chosen to meet the following considerations:
1. Avoid dead ends or pipe stubs or any location where circulation might be poor.
2. If velocity is very low, mount the cell so that the stream is directed against the end of the elec­trodes and the water will flow between the elec­trodes.
3. Be sure that the pipe is full of water and that the cell is completely immersed up to the pipe threads.
4. Cell mounting vertically downward is not recom­mended due to possible air entrapment.
2.5.2 Screw-in Cell Installation. The conductivity cells
should be screwed gently into a female pipe fitting using a parallel jaw wrench. Threads of stainless steel should be coated with a suitable pipe compound which will act to seal the treads, and prevent the need for overtightening. Teflon thread tape is recommended for this purpose. After the cell is installed, the cell cable should be supported in such a way as to reduce strain and minimize the danger of the cable becoming snagged and pulled from the cell.
2.5.3 Flow Through Cell Installation. The flow
through cells are provided with 1/4" Swagelok
TM
tube fittings. These are suitable for direct insertion into 1/4" O.D. sample lines. If connection to the plastic tubing is desired, the SwagelokTMfittings may be removed and replaced with 1/4" FPT - hose barb fittings. Fitting threads should be coated with a suitable pipe com­pound which will act to seal the treads, and prevent the need for overtightening. Teflon thread tape is rec­ommended for this purpose. After the cell is installed, the cell cable should be supported in such a way as to reduce strain and minimize the danger of the cable becoming snagged and pulled from the cell.
7
MODEL 1054B DC SECTION 2.0
INSTALLATION
FIGURE 2-1. Panel Mounting Cutout
WHEN INCH AND METRIC DIMS
ARE GIVEN
MILLIMETER
INCH
DWG. NO. REV.
41054B01 B
8
MODEL 1054B DC SECTION 2.0
INSTALLATION
FIGURE 2-2. Panel Mounting Tab Installation
DWG. NO. REV.
41054A26 A
9
MODEL 1054B DC SECTION 2.0
INSTALLATION
FIGURE 2-3. Pipe Mounting Installation
WHEN INCH AND METRIC DIMS
ARE GIVEN
MILLIMETER
INCH
DWG. NO. REV.
41054B02 C
10
FIGURE 2-4. Electrical Wiring
MODEL 1054B DC SECTION 2.0
INSTALLATION
DWG. NO. REV.
41054B46 A
11
FIGURE 2-5. Sensor Wiring
MODEL 1054B DC SECTION 2.0
INSTALLATION
NOTE: TERMINALS IN JUNCTION BOX ARE
NOT NUMBERED.
6
OLD MODEL 140 SERIES SENSORS MAY NOT MATCH THE FIGURE.
GRAY
GRAY
12
Configuration is all accomplished through a series of menus located within the set mode menu. To access these set mode menus the ACCESS keypad is pressed TWICE in RAPID succession.
Once inside the Set mode menu, use the SCROLL keypad to scroll through the menu list. When the menu desired is displayed, release the SCROLL keypad.
To enter the submenus press the SELECT keypad. If the submenu allows editing, the item will flash that can be edited. If not, use the SCROLL keypad to scroll through the next list of submenus. SELECT will enter this submenu and if it is editable, the field will flash.
To exit the menu and SAVE the new value, press the ENTER keypad.
To exit the menu without saving the edited value, press the PV keypad to jump out of the set menu program with out saving value. To change other parameters will require re-entering the set menu program.
Figure 3-4 explains the various fields surrounding the primary process variable on the 1054B DC display.
Table 3-1 describes the functions accessible with the 8 keypads, the number of times to press the keypad to access, and its function when used with the select key­pad and set menu.
Tables 3-2 and 3-3 describe the meaning of the various mnemonics used on the display . They are categorized by their use in either menus, or as process information.
MODEL 1054B DC SECTION 3.0
DESCRIPTION OF CONTROLS
SECTION 3.0
DESCRIPTION OF CONTROLS
3.1 KEYBOARD FUNCTIONS. All operations of the
Model 1054B microprocessor Analyzer are controlled by the 8 keypads on the front of the instrument. These keypads are used to :
1. Display parameters other than the primary param­eter.
2. Edit setpoints for alarms, set up specific output current value for simulation, calibrate temperature, conductivity, etc.
3. Configure display for temperature units, for auto­matic temperature compensation, alarm usage, setting timer functions, security, and output range.
To view, and not change parameters, other than the primary parameter requires only a simple keystroke routine. As shown in Figure 3-1, a single keystroke accesses the lower function printed on the keypad. Quick, double keypresses access the top function printed on the keypad.
To edit any of these parameters, requires one more operation. After displaying the value associated with the parameter selected, press the SELECT keypad seen in Figure 3-2. This will display the numerical value, and the first digit will be flashing to indicate this value may be edited.
All changes to the operating program that set-up the instrument display are made through the set menu pro­gram. See Figure 3-5 at the end of this section.
FIGURE 3-1. Function Select on Keypad.
Single press of the keypad will access the process variable. Read only.
1. Press Key.
2. Adj shows briefly.
3. Numbers show with digit flashing.
1 .Press Key twice.
2. Lo shows briefly.
3. Zero point is displayed.
SELECT
ZERO
ALARM
1
OUTPUT
PV
FIGURE 3-2. Accessing Editing Function.
1. Press twice in rapid succession.
2. See SEt on display. Confirms entry into set mode menu.
3. First menu item is displayed. Analyzer now ready to configure.
4. Use the SCROLL keypad to rotate through the available menus, select cell input 1 or 2, or scroll through digits or decimal point in adjustment mode.
ACCESS
ENTER
SEt
1 Cin
Ï
FIGURE 3-3. Accessing Configuration Menus
Quick double press will access the current output value in mA or %. Read only.
Í
13
MODEL 1054B DC SECTION 3.0
DESCRIPTION OF CONTROLS
FIGURE 3-4. LCD Display
RELAY 1 ACTIVATED
RELAY 3 ACTIVATED (MINUS SIGN)
RELAY 2 ACTIVATED
CELL SELEC­TION:
- 1 CELL FLAG ON;
- 2 CELL FLAG BLINKING
UNITS: µS(/cm) FLAG ON; UNITS:mS(/cm) FLAG BLINKING
UNITS: M (-cm) FLAG ON; UNITS: k (-cm) FLAG BLINKING
UPPER FUNC­TION PRESS TWICE QUICKLY
LOWER FUNC­TION PRESS ONCE
3.1.1 Item Selection and Value Adjustment Keys.
The three keys located on the lower right side of the keypad are used for menu navigation, value adjust­ment and entry, and item selection. These keys per­form the following functions:
A. SELECT/Shift (
Í) Key. This key is
used to select the displayed menu, or for shifting to the next digit in the Numeric Display.
B. SCROLL Key (Ï). This key is used to scroll through menu when selected, select cell input or scroll through digits on the active (flashing) Numeric Display, or move the decimal point.
C. ACCESS/ENTER Key. This key is used to ACCESS the Set Mode (Section
4.1.2) and to ENTER the displayed value into memory (from Numeric Display).
Í
SELECT
Ï
ACCESS
ENTER
14
TABLE 3-1. Key Description
Displays - current output (mA or % full scale). Set Function (w/SELECT) - Simulates current
output.
Displays - low current setpoint. Set Function (w/SELECT) - Sets low
current point.
Displays - full scale output setpoint. Set Function (w/SELECT) - Sets full
scale output point.
Select sub menu (mnemonic display). Shift to next digit (numeric display).
Select cell 1/2 input Scroll through menu (mnemonic display).
Scroll digits (numeric display). Scroll decimal position, µS/mS (mΩ/kΩ) dis­play.
Press twice to access set-up menu. Enter displayed value into memory. Enter displayed menu item (flashing) into memory.
(w/SELECT) one point standardization of conductivity (w/SCROLL) cell
1 or 2
Displays - Alarm 1 setpoint. Set Function (w/SELECT) - Sets
Alarm 1 setpoint.
Displays - P.V.
(w/SCROLL) cell
1/2
(PV=Process Variable)
Initiates or removes analyzer from hold con­dition.
Displays - process temperature w/SCROLL cell 1/2
Set Function (w/SELECT) - One point standardization of temperature w/SCROLL cell 1/2
Displays - Alarm 2 setpoint. Set Function (w/SELECT) - Sets
Alarm 2 setpoint.
HOLD
TEMP
OUTPUT
PV
ZERO
ALARM 1
F.S.
ALARM 2
CAL
Í
SELECT
Ï
ACCESS
ENTER
SECOND FUNCTION (PRESS TWICE QUICKLY)MAIN FUNCTION (PRESS ONCE)
MODEL 1054B DC SECTION 3.0
DESCRIPTION OF CONTROLS
15
MODEL 1054B DC SECTION 3.0
DESCRIPTION OF CONTROLS
MNEMONIC DESCRIPTION
1°C Temperature °C Cell 1 2°C Temperature °C Cell 2 1°F Temperature °F Cell 1
2°F Temperature °F Cell 2 AdJ Adjustment to value reading bAd Incorrect entry CAL Standardize Conductivity/Resistivity
1Con Conductivity Cell 1 2Con Conductivity Cell 2 1dOC Displays current output 1 (mA) 2dOC Displays current output 2 (mA)
HLd Analyzer in Hold Position
1 HI Displays high range value for
current output 1
MNEMONIC DESCRIPTION
2 HI Displays high range value for
current output 2
1 LO Displays low range value for current
output 1
2 LO Displays low range value for current
output 2
LOC Access locked – enter security code 1Pct Displays current output 1 (percent) 2Pct Displays current output 2 (percent) 1rES Resistivity cell 1 2rES Resistivity cell 2
SEt Set mode
SP1 Displays Alarm 1 setpoint
SP2 Displays Alarm 2 setpoint
420 4mA to 20mA output 020 0mA to 20mA output AL1 Alarm 1 setup AL2 Alarm 2 setup AL3 Alarm 3 setup
Atc
Auto. Temp. Comp.
°C Degrees Centigrade
CAt Cation Compensation 1CEL Cell Constant - Cell 1 2CEL Cell Constant - Cell 2 1Cin Absolute Conductivity Cell 1 2Cin Absolute Conductivity Cell 2
COd Security Code
Con Conductivity Display
CUr Config. current output 1Cur Config. fault output 1 2Cur Config. fault output 2
cur Default current setpoint
CYC
Auto Cycle cell 1/2 display
dFt Fault Configuration d-O Display output doc Display output in mA doF Delay off time don Delay on time dPn Dampen output
d-t
Temperature display setup
dtS LCD/LED Display test
°F Degrees Fahrenheit
1Fct Calibration Factor - Cell 1 2Fct Calibration Factor - Cell 2
FLt Use alarm as fault alarm
Hi Relay action - high H-L Alarm logic HYS Hysteresis
Lo Relay action - low non No action on fault
nEu
Neutral Salt Compensation
oFF Relay open on fault
OFF Alarm not used
on Relay closed on fault
On
Use alarm as process alarm
1 OUt Current output 1 config. 2 OUt Current output 2 config.
Pct
Display output in percent
rES Resistivity Convention rL1 Relay 1 fault setup rL2 Relay 2 fault setup rL3 Relay 3 fault setup SP3 Setpoint for alarm 3
SHO
Show fault history
1 t Select 1 cell temperature
2 t Select 2 cell temperature 1t-C 1 cell temp. setup 2t-C 2 cell temp. setup 1tYP PV setup - cell 1 2tYP PV setup - cell 2
UEr User version
TABLE 3-3. Set Function Mnemonics
TABLE 3-2. Information Mnemonics
16
MODEL 1054B DC SECTION 3.0
DESCRIPTION OF CONTROLS
1Cin 2Cin 1CEL 2CEL 1FCt 2FCt 1tYP 2tYP
AL1
AL2
AL3
1t-C 2t-C
1OUt 2OUt
UEr
dFt
dtS
COd
CYC
SEt
1t
2t
OFF
Hi
Lo
SP3
H-L
HY5
don
dof
doc
Pct
on
oFF
non
non
cur
rL1
rL2
rL3
1Cur
2Cur
SHO
420
020
dPn
CUr
d-O
FIGURE 3-5. Set Menu Items
rES
Con
H-L
HYS
don
doF
1CEL
OFF
Hi
Lo
1CEL
2CEL
FLt
OFF
CAt
nEu
1CEL
2CEL
1t
2t
d-t Atc
on
oFF
o
F
o
C
on
oFF
17
MODEL 1054B DC SECTION 4.0
CONFIGURATION
SECTION 4.0
CONFIGURATION
4.1 GENERAL. This section details all of the items avail-
able in the Set Mode to configure the analyzer to a spe­cific application.
4.1.1. Configuration Worksheet. The configuration worksheet on page 18 should be filled out before pro­ceeding with the analyzer’s configuration. This sheet gives a brief parameter description, the factory setting, and a space for user setting.
4.1.2 Set Mode Display Mnemonic SEt. Most of the analyzer's configuration is done while in the Set Mode. Please refer to Figure 3-5 for the layout of all menu items. All menu variables are written to the ana­lyzer's EEPROM (memory) when selected and remain there until changed. As these variables remain in memory even after the analyzer's power is removed, the analyzer configuration may be performed prior to installing it.
1. Power up the analyzer. Only power input wiring is required for analyzer configuration (Refer to Section 2.4.1). The analyzer's display will begin showing values and/or fault mnemonics. All fault mnemonics will be suppressed while the analyzer is in Set Mode (the fault flag will continue to blink).
2. Enter Set Mode. Pressing the ACCESS key twice in rapid succession will place the analyzer in Set Mode. The display will show SEt to confirm that it is in Set Mode. It will then display the first item in the set menu. The analyzer is now ready for user configuration.
NOTE:
If LOC displays, the Keyboard Security Code must be entered to access the Set Mode. (Refer to Section 6.0.)
3. Analyzer variables can be entered in any order. On initial configuration, however, it is recommend­ed that the variables be entered in the order shown on the worksheet. Refer to the configura­tion worksheet (Table 4-1). This will reduce the chance of accidentally omitting a needed variable.
4.2 PROCESS VARIABLE. Display Mnemonic tYP1 (for
cell 1) tYP2 (for cell 2). Used to select display convention of the process variable.
A. Resistivity. Display Mnemonic rES. Select this item to display resistivity values (MΩ/cm or kΩ/cm).
B. Conductivity. Display Mnemonic Con. Select this item to display conductivity values (µS/cm or mS/cm).
C. Neutral salt compensation. Display Mnemonic nEu. Accept this item to use neutral salt temperature compensation algorithm for ultra pure water with trace amounts of sodium chloride.
D. Cation Compensation. Display Mnemonic CAt. Accept this item to use cation temperature compensa­tion algorithm.
E. Raw Conductivity (no temperature compensation)
NOTE
To set up the instrument to output raw (uncompensated) conductivity, go to Section 4.4B and set the automatic tem­perature compensation to oFF, and set the manual temperature to 25°C (77°F) under1t-C (and 2t-C as desired). The analyzer will still output the actual tem­perature correctly if temperature is selected as the output variable. This pro­cedure is required by USP 23.
18
MODEL 1054B DC SECTION 4.0
CONFIGURATION
TABLE 4-1.
CONFIGURATION WORKSHEET
Use this worksheet to assist in the configuration of the analyzer. Date: _________________
RANGE FACTORY SET USER SET
A. Process Variable Display (1tYP/2tYP)
1. Conductivity or Resistivity (Con/rES) Con _________
2. Temperature Compensation (nEu/CAt) nEu _________
B. Alarm 1 Setup (AL1)
1. Alarm Configuration (1CEL/OFF) 1CEL _________
2. High or Low (H-L) (Hi/Lo) HI _________
3. Hysteresis (HYS) 0-25 % of setpoint 0.00% _________
4. Delay Time On (don) 0-255 sec. 000 Seconds _________
5. Delay Time Off (doF) 0-255 sec. 000 Seconds _________
C. Alarm 2 Setup (AL2)
1. Alarm Configuration (1CEL/2CEL/FLt/OFF) 2CEL _________
2. High or Low (H-L) (Hi/Lo) HI _________
3. Hysteresis (HYS) 0-25 % of setpoint 0.00% _________
4. Delay Time On (don) 0-255 sec 000 Seconds _________
5. Delay Time Off (doF) 0-255 sec 000 Seconds _________
D. Alarm 3 (AL3)
1. Alarm Configuration (1 t/2t/OFF) 1 t _________
2. Alarm 3 Setpoint (SP3) 0 to 135°C 20°C _________
3. High or Low (H-L) (Hi/Lo
) oFF _________
4. Hysteresis (HY5) 0 to 25% of setpoint 0% _________
5. Delay time on (don) 0 to 255 sec 0 Second _________
6. Delay time on (doF) 0 to 255 sec 0 Seconds _________ E. Temperature Setup (1t-C/2t-C)
1. Display temperature (d-t) (
°
C
/
°
F
C _________
2. Automatic Temp. Compensation (AtC) (on/oFF) on a. Manual temp. value (when
oFF)
(
0 to135
°
C)
F. Current Output Setup (1OUt/2OUt)
1. Process Variable Selection (1CEL/2CEL/1t/2t)
1Out: 1CEL,2Out: 2CEL
_________
2. mA Output (CUr) (020/420) 420 _________
3. Display Current Output (d-0) (Pct/doc) doc _________
4. Dampen Current Output (dPn) 0-255 sec. 0 Seconds _________
G. Default Setup (dFt)
1. Relay 1 default (rL1) (non/oFF/on) non _________
2. Relay 2 default (rL2) (non/oFF/on) non _________
3. Relay 3 default (rL3) (non/oFF/on) non _________
4. Current Output Default (1Cur/2Cur) (non/cur) non _________
H. Keyboard Security Setup (COd)
1. Keyboard Security Required 001-999 _ _________
2. Keyboard Security Not Required 000 000 _________
I. Alarm Set Points
1. Alarm 1 (SP1)
0-20,000µS/cm (0 to 50MΩ) 50µS/cm
_________
2. Alarm 2 (SP2)
0-20,000µS/cm (0 to 50MΩ) 100µS/cm
_________
J. Current Output
1. Zero (0 or 4 mA) (1 LO/2 LO)
Conductivity: 0-20,000µS/cm 1 Lo 2 LO: 0µS/cm
_________
2. F.S. (20 mA) (1 HI/2 HI) Resistivity: 0 to 50M
1HI: 10µS/cm
Temperature: 0 to 135°C 2HI: 20µS/cm
19
D. Alarm Logic. Mnemonic H-L. Select this item for
high or low alarm logic. High logic activates the alarm when the reading is greater than the set point value. Low logic activates the alarm when the reading is less than the set point value.
E. Relay Hysteresis. Display Mnemonic HYS. Sets the relay hysteresis (dead band) for deactivation after reading has passed the alarm set point. May be set from 0 to 25%. Use hysteresis when a specific conductivity should be reached before alarm deactivation.
F. Delay Time On. Display Mnemonic don. Sets time delay for relay activation after alarm set point is reached. May be set from 0 to 255 seconds.
G. Delay Time Off. Display Mnemonic doF. Sets time delay for relay deactivation after alarm set point is reached. May be set from 0 to 255 seconds. Alarm state restarts time from zero. Use when a fixed time should pass before relay deactivation occurs.
4.3.1 Alarm 1 and 2 Configuration (AL1/AL2). Refer to Figure 4-2.
1. Enter Set Mode by pressing ACCESS key twice.
2. SCROLL (Ï) until AL1 or AL2 appears on the dis­play.
3. SELECT to move to the next menu level. 1 CEL, OFF or (AL2 only) 2 CEL or FLt will display.
4. SCROLL (Ï) to display desired item then SELECT.
1 CEL
OFF
1 CEL 2 CEL
FLt OFF
AL1
AL2
H-L
HYS
don
doF
Hi
Lo
SEt
Figure 4-2. Alarm 1 and Alarm 2 Configuration
MODEL 1054B DC SECTION 4.0
CONFIGURATION
4.2.1 Process Variable Configuration (tYP1/tYP2). Refer
to Figure 4-1.
1. Enter Set Mode by pressing ACCESS key twice.
2. SCROLL (Ï) until tYP1 or tYP2 appears on the dis­play.
3. SELECT to move to the next menu level. rES, or Con will display.
4. SCROLL (Ï) to display desired item then ENTER. nEu or CAt will display.
5. SCROLL (Ï) to display desired item then ENTER. Display will return to
tYP1
or
tYP2
.
6. Repeat steps 2 through 5 for 2nd cell configura­tion.
4.3. ALARM 1 AND 2. Display Mnemonic AL1 or AL2.
Used to set alarm relay logic. The alarms may be used to perform on-off process control. See note below .
A. CELL 1/2. Display Mnemonic 1 CEL/2 CEL. Select this item if Alarm 1 or 2 is to be used as a process alarm. Select 1 CEL to act on Cell 1 input. Select 2 CEL to act on cell 2 input. See Steps D through G for further con­figuration.
B. OFF. Mnemonic OFF. Select this item if alarm 1 or 2 will not be used or to temporarily disable the alarm. Alarm 1 or 2 setpoint will display oFF if this item is selected. Omit Steps D through G.
C. Fault. Display Mnemonic FLt. (Alarm 2 only). Select to make Alarm 2 a fault alarm. Relay 2 will energize when the unit shows a fault condition. See Table 8-1 for a listing of the fault mnemonics and their descrip­tions. Alarm 2 setpoint will display F1 t if this item is selected. Omit Steps D through G.
tYP1 tYP2
CAt
nEU
SEt
Figure 4-1 Process Variable Configuration.
rE5
Con
20
MODEL 1054B DC SECTION 4.0
CONFIGURATION
5. If OFF is selected, display will show oFF to acknowl­edge. Press ENTER key to return to AL1 or AL2, concluding routine. Skip to Step 11.
If 1 CEL or 2 CEL is selected, display will show on to acknowledge, then display H-L. Proceed to Step 6.
If FLt is selected, display will show Flt to ack­nowledge. Press ENTER key to return to AL2.
6. SELECT H-L. Hi or Lo will display (flashing).
7. SCROLL (Ï) to the desired item and ENTER it into memory. Display will return to H-L. If changes to relay activation logic are desired, proceed to Step 8, otherwise Step 12.
8. SCROLL (Ï) to display HYS, don or doF then SELECT desired item. Numerical display will flash to indicate that a value is required.
9. Use SCROLL (Ï) and SHIFT (Í) to display the desired value.
10. ENTER value into memory. The analyzer will acknowledge and return to display of last item selected. Repeat Step 8 if further changes are desired, otherwise Step 12.
11. Repeat Step 3 for the other Alarm 2 settings as required.
12. To return to the first level of the Set Mode, press the ACCESS key.
4.3.2 Alarm 3. Display Mnemonic AL3. Used to set alarm
relay logic for relay 3 based on process temperature from cell I or 2.
NOTE
If alarm 3 is activated, the negative sign will flash on the display
A. Cell Selection. Display Mnemonic It or 2t. Select this item to use the process temperature relay. Select 1t for input from cell one's RTD, 2t for input from cell two's RTD.
B. Off. Mnemonic OFF. Select this item if relay 3 will not be used.
C. Set Point. Mnemonic SP3. Select this item to enter the alarm setpoint.
D. Alarm Logic. See Section 4.3D E. Relay Hysteresis. See Section 4.3E
F. Delay Time On. See Section 4.3F G. Delay Time Off. See Section 4.3G
4.3.3 Alarm 3 Configuration (AL3). Refer to Figure 4-3.
1 . Enter Set Mode by pressing ACCESS key twice.
2. SCROLL (Ï) until AL3 appears on display.
3. SELECT to move to the next menu level. It, 2t or OFF will display.
4. SCROLL (Ï) to display desired item then SELECT.
5. If OFF is selected, display will show OFF to acknowl­edge. Press ENTER key to return to AL3, concluding routine. Proceed to Step 13. If 1 t or 2 t is selected, display will go to next menu level. SP3 will display.
6. To change alarm set point, SELECT SP3. Current tem­perature setpoint will display with last digit flashing. SCROLL and SHIFT to display the desired value. Note: to change temperature display (°F or °C), refer to Section 4.4 (Temperature).
7. ENTER value into memory. The analyzer will acknowledge and return to display SP3.
8. SCROLL (Ï) to display H-L, then SELECT. HI or Lo will display (flashing).
1 t
2 t
OFF
AL3
SP3
H-L
HYS
don
doF
Hi
Lo
SEt
Figure 4-3 Alarm 3 Configuration
21
MODEL 1054B DC SECTION 4.0
CONFIGURATION
9. SCROLL(Ï) to the desired item and ENTER it into memory. Display will return to H-L. If changes to relay activation logic are desired, proceed to next step. Otherwise go to Step 13.
10. SCROLL (Ï) to display HYS, don or dof then SELECT desired item. Numerical display will flash to indicate that a value is required.
11. Use SCROLL (Ï) and SHIFT (Í ) to display the desired value.
12. ENTER value into memory. The analyzer will acknowledge and return to display of last item select­ed. Repeat Step 10 if further changes are desired.
13. To return to the first level of the Set Mode, Press the
ACCESS key.
4.4 TEMPERATURE. Display Mnemonic 1t-C / 2t-C.
Select this item for temperature reading and compen­sation choices.
A. Temperature Display. Display Mnemonic d-t. Select this item to toggle between °F and °C temperature display. The analyzer will show all temperatures for both cells in units selected until the selection is changed.
B. Automatic Temperature Compensation. Display Mnemonic Atc. The analyzer will use the temperature input from the sensor for temperature correction when on is selected. When oFF is selected, the analyzer will use the value entered by the user for temperature correction. This manual temperature option is useful if the temperature sensor is faulty or not on line, or if uncompensated (raw) conductivity will be output. Use 25°C (or 77°F) as the man­ual temperature in this case. Temperature specific faults will be disabled (refer to Section 8.0).
4.4.1 Temperature Configuration t-C. Refer to Fig. 4-4.
1. Enter Set Mode by pressing ACCESS key twice
2. SCROLL (Ï) until 1t-C (for cell one) or 2t-C (for cell
two) appears on the display.
3. SELECT to move to the next menu level. d-t will
display.
4. SCROLL (Ï) to display desired item then SELECT it.
5. If d-t is selected, display will show °C or °F. If Atc is
selected, display will show on or oFF
6. SCROLL (Ï) then ENTER desired item into memory.
7. If °C, °F or on are entered, display will return to the previous level (proceed to Step 9). If oFF is selected, numerical display will flash indicating that a process temperature value is required (proceed to Step 8).
8. Use SCROLL (Ï) and SHIFT (Í) to display the desired value ENTER value into memory
9. Repeat Steps 4-8 as required for other item
10.Press the ENTER key to return to Set Menu.
11. Repeat Steps 2-10 for second cell.
4.5 CURRENT OUTPUT. Display Mnemonic is 1 OUt2
OUt. These items are used to configure the output signals.
Each output corresponds to a user selectable item.
A. Conductivity/Resistivity. Display Mnemonic 1CEL or 2CEL. Select 1CEL to correspond to the process variable measured by cell one, 2CEL for cell two's process variable.
B. Process Temperature. Display Mnemonic 1t or 2t. Select 1t to correspond output to temperature of cell one's process temperature, 2t for cell two's process tem­perature.
Operation of output is user selectable as follows: A. Output Dampening. Display Mnemonic dPn. Dampens
the response of the signal output. This option is useful to minimize the effect of a noisy reading. The number entered is the sample time (in seconds) for an averaged output. Zero to 255 seconds may be entered.
B. mA Output Range. Display Mnemonic CUr. Selection of this item will allow choice of 0 to 20 mA or 4 to 20 mA output range.
C. Display Output. Display Mnemonic d-O. This item is used to select logic of output display. Selecting this item will allow the analyzer to display current output as mA (doc) or as a percent of full scale output range (Pct).
SEt
1 t-C
2 t-C
d-t
Atc
°F
°C
on
oFF
Figure 4-4. Temperature Configuration
22
4.5.1 Current Output Configuration 1OUt / 2OUt. Refer to
Figure 4-5.
1. Enter Set Mode by pressing the ACCESS key twice.
2. SCROLL (
Ï
) until 1OUt2OUt appears on the display.
3. SELECT to move to the next menu level. The item presently in memory will display.
4. SCROLL (
Ï
) then SELECT desired item.
5. If dPn is selected, numerical display will flash indicat­ing that a value is required (proceed to Step 6).
If CUr or d-O is selected, proceed to Step 7.
6. SCROLL (
Ï
) then SHIFT (Í) to display the desired
value. ENTER into memory
7. SCROLL (
Ï
) then ENTER desired item.
8. Repeat Steps 4-7 as required.
9. Press the ENTER key to return to the Set Menu.
10. Repeat Steps 2-9 for second output configuration.
4.6 DEFAULTS. Display Mnemonic dFt. This item is used to set the configuration of relays and output default conditions during fault or hold status. See Table 8-1 for a listing of the possible fault conditions which can be diagnosed by the analyzer. A hold status is initi­ated by pressing the HOLD key twice. (Press twice again to remove the hold.)
A. Relay 1, 2 and 3. Display Mnemonic rL1, rL2 and rL3. The relays can be set to activate on, deactivate oFF, or hold present status non. See Table 4-2.
B. Current Output. Display Mnemonic Cur.The current output is held non or goes to a specified value cur dur­ing a fault condition. cur will probably be the most informative selection.
MODEL 1054B DC SECTION 4.0
CONFIGURATION
1 Out
2 Out
SEt
1 CEL
2 CEL
1 t
2 t
doc
Pct
dPn
CUr
d-O
420
020
Figure 4-5. Current Output Configuration
C. Fault History. Display Mnemonic SHO. Selecting this
item will display the most recent detected faults. Press the SCROLL key once for each previous fault history. Pressing ACCESS will clear SHO history.
4.6.1 Default Configuration (dFt). dFt Refer to Figure 4-6.
1. Enter Set Mode by pressing the ACCESS key twice.
2. SCROLL (Ï) until dFt appears on the display.
3. SELECT to move to the next menu level. rL1 will display.
4. SCROLL (Ï) then SELECT desired item.
5. Display will show next item selection. SCROLL (Ï) and ENTER desired item.
6. Repeat Steps 4 and 5 as required for other default settings rL2, rL3, 1Cur and 2Cur. If cur is selected for 1Cur / 2Cur, press ENTER then use the SCROLL (Ï) and SHIFT (Í) keys to enter the desired current value in mA.
7. Press the ENTER key to return to Set Menu.
SEt
dFt
rL1
rL2
rL3
1Cur
2Cur
SHO
on
oFF
non
non
cur
Figure 4-6. Default Configuration
4.7 ALARM SETPOINT. Alarms 1 & 2. The alarms set-
points should be adjusted after completing the configu­ration procedure outlined in Sections 4.1 to 4.6. (Refer to Figure 4-7.)
NOTE
Alarm 3 setpoint is set under set mode. See Section 4.3.2.
1. Press the PV key to ensure that the analyzer is not in Set Mode.
23
2. Press the ALARM 1 or ALARM 2 key. SP1 or SP2 will show briefly, followed by the Alarm 1 or Alarm 2 Setpoint.
NOTE:
If the alarm is set to OFF or FLt (Alarm 2 only), the analyzer will display oFF or F1 t respectively. (Refer to Section 4.2, Alarm Configuration.)
3. Press SELECT to adjust the value. The display will acknowledge briefly with AdJ followed by the Numeric Display with digit flashing.
4. SCROLL (
Ï
) and SHIFT (Í ) to display the
desired value.
5. ENTER value into memory. Repeat Steps 2 to 5 for the second setpoint.
ZERO
ALARM
1
F.S.
ALARM
2
ACCESS
Í
SELECT
Ï
AdJ
SP1/2
Í
SELECT
ENTER
Press
Once
Press Once
Displays
Briefly
Displays
Briefly
Numeric
Display
Change to
desired
value
Press
Once
Numeric
Display
of
Setpoint
FIGURE 4-7. Alarm Setpoint
MODEL 1054B DC SECTION 4.0
CONFIGURATION
ANALYZER CONDITION
NORMAL HOLD FAULT
Set menu AL1/AL2/AL3 setting Set menu AL1/AL2/AL3 setting Set menu AL1/AL2/AL3 setting
On OFF FLt On OFF FLt On OFF FLt
(Alarm 2 (Alarm 2 (Alarm 2
only) only) only)
on Proc. det. + + + off Proc. det. + non Proc. det. Proc. det. Proc. det. +
Set Menu
default
(dFt)
setting
rL1rL2rL3
Proc. det.: Alarm state is determined by
the process value.
+:Relay will activate. –:Relay will not activate.
Example: If you want the analyzer to activate relay 1 in
hold mode during calibration, set AL1 to On in Section 4.3, and set rL1 to on.
TABLE 4-2. Relay States for Various Conditions and Alarm/Default Configurations
NOTE
Selection of the µS/mS and decimal position is achieved by pressing SHIFT (Í) until the µS/mS flag flashes, then SCROLL (Ï) until the desired combina- tion of decimal position and mS (flash­ing)/µS (not flashing) flag are displayed. Follow the same procedure to select the M/kand decimal position.
Alarm logic may be changed from nor­mally open (N.O.) to normally closed (N.C.) by cutting circuits (W5, W7 & W9) on the power supply PCB and adding jumpers (W4, W6, & W8).
24
MODEL 1054B DC SECTION 4.0
CONFIGURATION
4.8 OUTPUT SCALE EXPANSION. The output is con-
trolled as user configured. The output zero and full scale value should be adjusted after completing the configura­tion procedure as outlined in Sections 4.1 to 4.6. (Refer to Figure 4-8.)
A. ZERO POINT (0 mA or 4 mA) 1 LO/2 LO
1. Press the PV key to ensure that the unit is not in Set Mode.
2. Press the ALARM 1 key twice. The display will show 1 LO or 2 LO briefly then display the ZERO point. Scroll (<) to toggle 1 LO/2 LO.
3. Press SELECT to adjust the value. The display will acknowledge briefly with AdJ followed by the Numeric Display with digit flashing.
4. SCROLL (Ï) and SHIFT (Í ) to display the desired value.
5. ENTER value into memory. The display will show 1 LO/2 LO and display the entered value.
6. Repeat steps 2-5 for second output.
B. Full Scale (F.S.) Point (20 mA) 1 HI/2 HI
1. Press the PV key to ensure that the analyzer is not in Set Mode.
2. Press the ALARM 2 key twice. The display will show 1 HI or 2 HI briefly then display the FULL SCALE point. SCROLL (<) to toggle 1 HI/2 HI.
3. Press SELECT to adjust the value. The display will acknowledge briefly with AdJ followed by the Numeric Display with digit flashing.
4. SCROLL (Ï) and SHIFT (Í ) to display the desired value.
5. ENTER value into memory. The display will show 1 HI/2 HI and display the entered value.
6. Repeat steps 2-5 for the second output.
NOTE
For a reverse output, enter the higher value for zero, and the lower value for the Full Scale.
ZERO
ALARM
1
F.S.
ALARM
2
ACCESS
Í
SELECT
Ï
AdJ
1 LO
/1 HI
2 LO
/2HI
Í
SELECT
ENTER
Press Twice
Press to
Toggle
Output
1 & 2
Displays
Briefly
Displays
Briefly
Numeric
Display
Change to
desired
value
Press
Once
Numeric
Display
of
Setpoint
FIGURE 4-8. Output Scale Expansion
Ï
Press
Once
25
4.9 SIMULATE CURRENT OUTPUTS. The outputs
can be simulated to check the operation of devices such as valves, pumps, or recorders. The outputs can be simulated in either current (mA) or percent of full scale, depending on how the output displays d-O were configured in Section 4.5. (Refer to Figure 4-9.)
A. Simulate Output in Percent 12SiP. The output can be simulated in percent if d-O in Section 4.5 was configured to display percent Pct.
1. Press the PV key once to insure that the analyzer is not in the Set Mode.
2. Press the OUTPUT key twice. The display will show 1Pct or 2Pct briefly, then display the output value in percent of full scale. SCROLL (Ï) to tog­gle 1Pct/2Pct.
3. Press SELECT to simulate the output. The display will briefly acknowledge with 1SiP or 2SiP followed by the Numeric Display with digit flashing.
4. SCROLL (Ï) and SHIFT (Í ) to display the desired value.
5. ENTER value into memory. The display will show 1Pct or 2Pct and display the entered value. Also, the display will flash to acknowledge that the ana­lyzer is placed on hold HLd. In hold mode the relays will be set as determined in Section 4.6.
6. To remove the analyzer from hold, press the HOLD key twice. The hold flag on the display will be removed and the display will stop flashing.
B. Simulate Output in Current 1SiC / 2SiC. The output
can be simulated in mA units if d-O in Section 4.5 was configured to display current doc.
1. Press the PV key once to insure that the analyz­er is not in the Set Mode.
2. Press the OUTPUT key twice. The display will show 1dOC or 2dOC briefly, then display the output value in mA. SCROLL (Ï) to toggle 1dOC/2dOC.
3. Press SELECT to simulate the output. the display will briefly acknowledge with Sic followed by the Numeric Display with digit flashing.
4. SCROLL (Ï) and SHIFT (Í ) to display the desired value.
5. ENTER value into memory. The display will show dOC and display the entered value. Also, the dis­play will flash to acknowledge that the analyzer is placed on hold HLd. In hold mode the relays will be set as determined in Section 4.6.
6. To remove the analyzer from hold, press the HOLD key twice. The hold flag on the display will be removed and the display will stop flashing.
MODEL 1054B DC SECTION 4.0
CONFIGURATION
OUTPUT
COND
ACCESS
Í
SELECT
Ï
1
/2SiC
1/2SiP
1
/2Pct
1
/2dOC
Í
SELECT
ENTER
Press Twice
Press
Once
Displays
Briefly
Displays
Briefly
Numeric
Display
Change to
desired
value
Press
Once
Numeric
Display
of Output
(Analyzer in
hold)
FIGURE 4-9. Simulate Current Output
Ï
Press to
Toggle Output
1 & 2
26
4.10 DISPLAY CYCLE. Display Mnemonic CYC. This
feature allows the display to alternate between cell one and cell two PV readings. Refer to Figure 4-10.
1. Enter the Set Mode by pressing the ACCESS key twice.
2. SCROLL (
Ï
) until CYC appears on the display.
3. SELECT to move to next menu level. Display will flash showing present cycle mode: on or oFF
4. SCROLL (
Ï
) to display desired item then ENTER. If oFF is entered, display will return to the previous level and the display will not cycle. If on is entered, display will show cycle time in seconds. SCROLL
(
Ï
) and SHIFT(Í) to display desired value, then enter. Display will toggle between PV of cell one and PV of cell two each cycle time.
MODEL 1054B DC SECTION 4.0
CONFIGURATION
SEt
CYC
on
oFF
FIGURE 4-10. Display Cycle
27
MODEL 1054B DC SECTION 5.0
START-UP AND CALIBRATION
SECTION 5.0
START-UP AND CALIBRATION
5.1 START-UP AND CALIBRATION. Calibration and
operation of the Model 1054B DC should begin only after completion of configuration of the analyzer. The sensor must be wired (including junction box and inter­connecting cable) as it will be in operation.
5.1.1 Entering the Cell Constant. The cell constant is factory set for a .01 cell constant. If the value is correct for both cells, proceed to Section 5.1.2. If a cell with a constant other than .01 is used, enter the appropriate value (1CEL for cell 1, 2CEL for cell
2) as follows:
l. Enter the Set Mode by pressing the ACCESS key
twice in rapid succession. The analyzer will dis­play SEt briefly then display 1Cin.
2. SCROLL (Ï) the menu until 1CEL or 2CEL is dis­played, then SELECT it. The Numerical display will flash to indicate that a value is desired.
3. Use SCROLL (Ï) and SHIFT (Í) to display the correct sensor cell constant and ENTER it into memory.
4. Repeat this procedure for the second cell if required.
5.1.2 Entering the Cell Calibration Constant
(Factor). Model 400 Series conductivity cells intended
for use with the 1054B DC include a tag giving its cali­bration constant, Cal Const. This is a number between 0 and 999 specifying the cell’s exact cell constant. Entering this value (1Fct for Cell 1, 2Fct for Cell 2) into the 1054B DC allows increased measurement accura­cy. Enter the number provided on the Cell’s tag as fol­lows:
1. Enter the Set Mode by pressing the ACCESS key twice in rapid succession. The analyzer will dis­play SEt briefly then display 1Cin.
2. SCROLL (Ï) the menu until 1Fct or 2Fctis dis­played, then SELECT it. The Numerical display will flash to indicate that a value is desired.
3. Use SCROLL (Ï) and SHIFT (Í) to display the correct calibration constant and ENTER it into memory.
4. Repeat this procedure for the second cell if required. For Model 150,160, and 140 Series cells, perform a single point calibration (See Section 5.1.4).
5.1.3 Temperature Calibration. Precise measure­ment of high purity water requires accurate tempera­ture measurement. For this reason it is recommended that the cells be temperature calibrated.
To calibrate a conductivity cell, place the cell and a high accuracy mercury thermometer into a beaker of water. It is best, though not essential, that the sample be near the temperature of the intended process stream. Allow several minutes for the sensor and ther­mometer to come to equilibrium.
NOTE
Pressing the Temp key will display the process temperature for Cell 1. To toggle the display for the process temperature for Cell 2, press SCROLL (Ï).
1. Observe the analyzer temperature reading by pressing the TEMP key (and SCROLL (Ï) if required). Assure that the reading is stable and the sensor acclimated to the process temperature.
2. Compare the analyzer reading to the thermometer reading. If the readings are different, proceed to step three.
3. Press the TEMP key (and SCROLL (Ï) if required) then the SELECT key to correct the tem­perature display. The analyzer will display AdJ briefly, then the Numeric Display will show with digit flashing.
4. SCROLL (Ï) and SHIFT (Í) to display the correct value and ENTER it into memory.
5. Repeat this procedure for the second cell.
5.1.4 Cell Single Point Calibration. The Single Point
calibration adjustment is for use only in calibrating the Model 1054B DC to match a reference instrument of known high accuracy. To use it otherwise will result in a reduction in system accuracy. By performing a single point calibration, the user overrides the calibration con­stant setting.
NOTE
To completely undo the single point cali­bration adjustment, re-enter either the cell constant or cell calibration constant of the appropriate cell. (Section 5.1.1 - 2).
28
NOTE
After initial installation or any cleaning pro­cedure, the conductivity cell will require I to 2 days after insertion into the ultrapure water stream before accurate readings may be obtained. In many cases, the full
0.5% system accuracy will not be obtain­able until the cell has remained in the ultra­pure water stream a full 5 days.
NOTE
Pressing the CAL key will display the process temperature for Cell. To toggle the display for the process temperature for Cell 2, press SCROLL (Ï).
1. Press the CAL (and SCROLL (Ï) if required) key then the SELECT . Std will display followed by the Numeric Display with digit flashing.
2. SCROLL (Ï) and SHIFT (Í) to display the con­ductivity value of the known high accuracy and
ENTER it into memory.
MODEL 1054B DC SECTION 5.0
START-UP AND CALIBRATION
29
6.1 KEYBOARD SECURITY. Display Mnemonic COd.
Select this feature to display the user defined security code. Any three digit number may be used for this code. 000 will disable the security feature. This item is used to prevent accidental changes to the calibration and configuration of the analyzer. When activated, the analyzer will allow all read functions to read normally. If an attempt is made to change a value, LOC will display followed by the Numeric Display ready for the code to be entered. A proper code will unlock the analyzer and the analyzer will return to the last function attempted. Any incorrect value will result in bAd briefly displaying. The analyzer will then return to numeric display and await the entry of the code. Once unlocked, the analyz­er will allow access to all functions until the analyzer is either powered down or no keystrokes are made for a period of 2 minutes. If the code should be forgotten, pressing and holding the ACCESS key for 5 seconds will result in display of the code. Releasing the ACCESS key, then pressing ENTER will unlock the analyzer.
6.1.1 Keyboard Security (COd).
1. Enter Set Mode by pressing ACCESS key twice.
2. SCROLL (Ï) until COd appears on the display.
3. Press SELECT.
4. SCROLL (Ï) and SHIFT (Í ) to display the desired value, then ENTER it into memory.
NOTE
Entering 000 disables the keyboard secu­rity.
NOTE
Security feature will not activate until 2 min­utes without keyboard activity or power is removed from the analyzer then restored.
MODEL 1054B DC SECTION 6.0
KEYBOARD SECURITY
SECTION 6.0
KEYBOARD SECURITY
30
7.1 THEORY OF OPERATION. This section is a gen-
eral description of how the analyzer operates. This section is for those users who desire a greater under­standing of the analyzer’s operation.
Utilizing a square wave measurement circuit for improved linearity and accuracy, the Model 1054B DC measures the absolute conductivity/resistivity of the measured process. The analyzer then references the conductivity/resistivity to 25°C by accurately measur­ing the process temperature by means of a Pt-100 or Pt-1000 RTD located in the cell.
It is commonly known that in measuring the resistivity or conductivity of ultrapure water, temperature compensa­tion is very critical. The temperature coefficient of ultra­pure water depends both on the temperature and the resistivity/conductivity of the water being tested. Figure 7-1 illustrates the relationship between the resistance and the temperature of pure water from 2 megohm-cm to 18 megohm-cm quality.
The Model 1054B DC incorporates a 100 ohm or 1000 ohm RTD for temperature measurement, and is capable of measuring and displaying temperature accurately to within ±0.1°C. Temperature measurement is resolved to .025°C and this precise measurement is used in the ana­lyzer’s temperature compensation calculation.
For neutral salts the equation that the analyzer utilizes to calculate temperature compensation is derived from the equivalent conductance of the separate ions in the total solution system. The equation is the form of:
(Q
S
- QW)
C
t
= C25QS -
(18.25)
Where Ct= Specific conductivity at temperature
C25= Conductivity at 25°C QS= Temperature coefficient of neutral salt QW= Temperature coefficient of pure water
This formula takes into account the temperature coeffi­cient of the neutral salt component and the pure H2O component and separately calculates the conductive contribution of the solvent and solute.
This temperature compensation method not only achieves the same accuracy for water over the range of 15°C to 60°C as the General Electric equation, but also extends the accuracy from 0°C to 100°C.
For cation resin columns, a formula specific to the characteristics of pure water contaminated with minute quantities of hydrochloric acid is used to provide accu­racy for cation solutions up to 9.99 µS/cm over a tem­perature range of 0°C to 100°C.
MODEL 1054B DC SECTION 7.0
THEORY OF OPERATION
SECTION 7.0
THEORY OF OPERATION
FIGURE 7-1 Resistance vs. Temperature
31
MODEL 1054B DC SECTION 8.0
DIAGNOSTICS AND TROUBLESHOOTING
SECTION 8.0
DIAGNOSTICS AND TROUBLESHOOTING
Display Description
EEP EEPROM write error (bad EEPROM chip). CHS ROM failure (check sum error) (bad ROM chip).
COP Computer not operating properly. 1tcH High temperature compensation error - Cell 1. 1tcL Low temperature compensation error - Cell 1.
FAC Factory calibration required. 2tcH High temperature compensation error - Cell 2. 2tcL Low temperature compensation error - Cell 2. 1CLH Overange - Cell 1. 2CLH Overange - Cell 2.
8.1 DIAGNOSTICS. The Model 1054B analyzer has a diagnostic feature which automatically searches for fault conditions that would cause an error in the meas­ured conductivity value. If such a condition occurs, the current output and relays will act as configured in default and the fault flag and display will flash. A fault code mnemonic will display at frequent intervals. If more than one fault condition exists, the display will sequence the faults at one second intervals. This will continue until the cause of the fault has been correct­ed. Display of fault mnemonics is suppressed when in Set Mode. Selecting the SHO item will display a history of the two most recent fault conditions unless SHO was cleared (Refer to Section 4.6).
NOTE
If the analyzer is in hold and a fault occurs,
the mnemonic HLd will display during the
fault sequence.
8.1.1 Fault Mnemonics. Table 8-1 lists the fault mnemonics and describes the meaning of each.
8.1.2 Temperature Compensation. Table 8-2 is a ready reference of RTD resistance values for a Pt­1000 RTD at various temperatures. For Pt-100 values divide by 10. These are used for test and evaluation of the sensor.
NOTE
Ohmic values are read across the T.C. element and are based on the stated values (R
O
±0.12%). Allow enough time for the T.C. element to stabilize to the surrounding temperature. Each 1°C change corresponds to a change of 3.85 ohms (for a Pt-1000 RTD) or .385 ohms (for a Pt 100 RTD).
TABLE 8-1. Fault Mnemonics
TABLE 8-2. RTD Resistance Values
Temperature Resistance
0°C 1000 ohms
10°C 1039.0 ohms 20°C 1077.0 ohms 25°C 1096.2 ohms 30°C 1116.7 ohms 40°C 1155.4 ohms
50°C 1194.0 ohms
60°C 1232.4 ohms 70°C 1270.7 ohms 80°C 1308.9 ohms 90°C 1347.0 ohms
100°C 1385.0 ohms
110°C 1422.9 ohms 120°C 1460.6 ohms 130°C 1498.2 ohms 140°C 1535.8 ohms
150°C 1573.1 ohms
160°C 1610.4 ohms 170°C 1647.6 ohms 180°C 1684.6 ohms 190°C 1721.6 ohms
200°C 1758.4 ohms
32
MODEL 1054B DC SECTION 8.0
DIAGNOSTICS AND TROUBLESHOOTING
8.2 TROUBLESHOOTING. The Model 1054B analyzer
is designed with the state of the art microprocessor cir­cuitry. This design incorporates programmed features that provide constant monitoring for fault conditions, and the reporting of these faults via Mnemonics on the instrument display screen. This aids in determining where to start checking for the cause of failures, and in some instances, the ability to see changes that can be used to predict future degeneration of assemblies before their complete failure.
8.2.1 Installation Failure. After completion of installa­tion the instrument should be checked for operation. Normally this would consist of Powering up the instru­ment and checking for:
1. A self diagnostic fault display. Refer to Table 8-1 for brief description of problem indicated by mnemonic. Table 8-3 provides a more compre­hensive problem explanation and actions that may help solve the problem.
2. A conductivity reading that is approximately cor­rect. (Depending upon sensor installation in either air or process.) Refer to Section 8.2.3 for sensor checks.
3. Pressing several of the keypads to determine whether programming appears to be operational. Table 8-3 explains problems and actions that may be helpful in solving them.
4. Checking output for 4-20 mA output current.
8.2.2 After Operation. Troubleshooting this instrument
after previous operation should follow normal trou­bleshooting procedures. Check display . If power is O.K. the display mnemonic will direct you to the basic area of malfunction (Sensor, Printed Circuit Boards, calibra­tion, or temperature compensation).
Use Tables 8-1 and 8-3 to determine area, possible problem and actions to take to remedy fault.
Faulty display. If a faulty display is suspected, enter the SET menu and scroll through to the dtS option. This option will activate all display segments. See Figure 3-5.
Output Circuit Testing. To check for problems in the output circuit, bypass the sensor input and analyzer calculations by setting a known output current and checking item driven by output current and checking the operation of valves, pumps, recorders, etc. For directions on how to set output current, refer to Section
4.9.
8.2.3 Sensor Troubleshooting. In addition to the sen­sor fault mnemonics, the analyzer can display informa­tion pertinent to determining if sensor has become coated, or if there is a conductivity versus temperature problem, or an application problem.
Sensor Coated. Conductivity cells used in pure water service require little maintenance. As with any type of in-line instrumentation, the cell should be inspected periodically. During these inspections, the following items should be checked:
NOTE
After initial installation or any cleaning pro­cedure, the conductivity cell will require I to 2 days after insertion into the ultrapure water stream before accurate readings may be obtained. In many cases, the full
0.5% system accuracy will not be obtain­able until the cell has remained in the ultra­pure water stream a full 5 days.
1. Are the cell cable and connections in good condi­tion? Is there evidence of corrosion?
2. Is the cell bent or dented? Blow dry with com­pressed air and inspect carefully for physical dam­age.
3. Is there any extraneous material lodged between the electrodes? The cell is easily inspected and can be cleaned with a blast of compressed air or by holding it holder hot tap water. Hot tap water may be run through the cell by slipping a piece of rubber tubing over the end of the cell and allowing the water to flow through the cell and out the vent holes.
For extremely dirty cell, see step 4.
33
MODEL 1054B DC SECTION 8.0
DIAGNOSTICS AND TROUBLESHOOTING
4. If the conductivity cell electrodes have become extremely dirty or fouled, chemical cleaning may become necessary. Warm 10% solutions of either hydrochloric acid or sodium hydroxide may be used depending on the soil. Do not keep cells in these solutions for longer than 15 minutes. Do not have the cell connected during this proce­dure. Gentle brushing with a bristle brush such as a tooth brush may also be employed.
After chemical cleaning, the cell must be thoroughly rinsed in running tap water to remove strong electrolyte which may remain on the electrodes, insulators and electrode holders. This rinsing operation should con­tinue for approximately one half hour. The cell should then be washed in several changes of distilled or deionized water over a period of several hours before being installed.
Absolute Conductivity. As an aid in determining whether a problem exists in the conductivity section of the sensor or analyzer, or the temperature compensat­ing circuits, the absolute conductivity (the uncorrected conductivity value, without temperature compensation) of the process can be displayed. To do so:
1. Press the ACCESS key twice.
2. SEt will be displayed briefly followed by 1Cin.
3. SELECT 1Cin to read the absolute conductivity of cell 1.
4. SCROLL (
Ï
) to display 2Cin and SELECT to read
the absolute conductivity of cell 2.
5. To return to normal operation, press PV
Temperature Sensor Accuracy. If the temperature sensor in the conductivity sensor is suspect, measur­ing the resistance along the T.C. element and compar­ing the corresponding temperature reading can be used in the evaluation of the sensor. Allow enough time for the T.C. element to stabilize to the surrounding temperature, Each 1°C change corresponds to a change of 03.85 ohms.
8.2.4 Subassembly Replacement Considerations. CPU Board Replacement. If a problem exists on the
CPU board, and replacement is required, specific pro­cedures included with the new board must be followed or the microprocessor will be improperly programmed. Should this occur, it will be necessary to return the analyzer to the factory for reprogramming.
Power Board Replacement. if it becomes necessary to replace the power board, the CPU will need to be recalibrated following specific procedures included with the power board Failure to follow these proce­dures exactly will cause the microprocessor to be improperly programmed and require the return of the analyzer to the factory for reprogramming.
34
MODEL 1054B DC SECTION 8.0
DIAGNOSTICS AND TROUBLESHOOTING
TABLE 8-3. Troubleshooting Guide
SYMPTOM PROBLEM ACTION
Analyzer value not the same 1. Reference analyzer incorrect. 1. Recalibrate reference analyzer as reference analyzer. 2. Unclear what is correct. 2. Bench test analyzer.
3. Analyzer out of calibration. 3. Recalibrate per Start-up and Calibration Section.
Fault code 1tcH/1tcL (cell 1). 1. Miswire. 1. Check wiring between the
2tcH/2tcL (cell 2). sensor and analyzer.
2. Open or shorted RTD. 2. Replace sensor.
Fault code 1CLH (cell 1). 1. Process conductivity 1. Check purity system.
2CLH (cell 2). too high for sensor in use.
Process contamination.
Near zero reading 1. Open wire between sensor 1. Repair wire/check connection.
and analyzer.
2. Coated/fouled sensor. 2. Clean replace/sensor.
Fault code EEP. 1. Defective EEPROM. 1. Replace CPU PCB. Fault code CHS. 1. Defective CPU. 1. Replace CPU PCB. No alarm relay closure. 1. Defective power card. 1. Replace power PCB.
2. Defective CPU. 2. Replace CPU PCB.
No output current. 1. Defective power board. 1. Replace power PCB.
2. Miswired. 2. Check for short.
Low output current. 1. Circuit loading with excessive 1. Consult output loading limits
resistance on output. Model 1054B R specifications
(600 ohms max load).
Zero conductivity reading. 1. Sensor miswired. 1. Repair wire/connection.
2. Solids coating sensor. 2. Clean sensor.
3. Open wire in sensor. 3. Replace sensor or tube.
HP5 1. Switch on CPU board in 1. Slide switch on CPU
wrong position. toward front of instrument.
35
FIGURE 8-1. Simulate Conductivity Input
MODEL 1054B DC SECTION 8.0
DIAGNOSTICS AND TROUBLESHOOTING
8.2.5 Instrument Electronic Check. This procedure
will allow the operation of the analyzer to be evaluated by simulating a known conductivity input.
1. Disconnect the conductivity sensor input leads from TB2-1, 2, 3, 5, 6, and 7. Install a decade box or resistor leads to TB2-1 and TB2-2 to simulate “CELL1” input resistance, and install a decade box or resistor leads to TB2-5 and TB2-6 to simulate “CELL2” input resistance. Install leads of a 1100 ohm resistor to TB2-2 and TB2-3 for temperature resistance of “CELL1” and a second 1100 ohm resistor’s leads to TB2-6 and TB2-7 for tempera­ture resistance of “CELL2” as shown in Figure 8-1.
2. Calibrate temperature to 25°C (see Section 5.1.3).
3. Set cell constant to 1.0 (see Section 5.1.1).
4. To simulate a desired conductivity input, an appro­priate resistance value may be calculated by Formula or selected from the conductivity (µmhos) vs resistance (ohms) table (see Figure 8-1).
5. Simulate conductivity input and evaluate the ana­lyzer response.
8.3 INSTRUMENT MAINTENANCE. To maintain the
appearance and extend the life of the enclosure, it should be cleaned on a regular basis using a mild soap and water solution followed by a clean water rinse.
Formula:
1
Conductivity =
____________
X 1,000,000
Resistance
Table:
Conductivity (µmhos) vs Resistance (kilohms)
5 200,000
10 100,000
100 10,000
1,000 1,000 10,000 100 20,000 50
1100 ohms Resistor
Decade Box or Resistor
Decade Box or Resistor
1100 ohm Resistor
36
MODEL 1054B DC SECTION 9.0
RETURN OF MATERIAL
SECTION 9.0
RETURN OF MATERIAL
9.1 GENERAL.
To expedite the repair and return of instruments, proper communication between the customer and the factory is important. Before returning a product for repair, call 1-949-757-8500 for a Return Materials Authorization (RMA) number.
9.2 WARRANTY REPAIR.
The following is the procedure for returning instru­ments still under warranty:
1. Call Rosemount Analytical for authorization.
2. To verify warranty, supply the factory sales order number or the original purchase order number. In the case of individual parts or sub-assemblies, the serial number on the unit must be supplied.
3. Carefully package the materials and enclose your “Letter of Transmittal” (see Warranty). If possible, pack the materials in the same manner as they were received.
4. Send the package prepaid to: Rosemount Analytical Inc., Uniloc Division
Uniloc Division 2400 Barranca Parkway Irvine, CA 92606
Attn: Factory Repair
RMA No. ____________
Mark the package: Returned for Repair
Model No. ____
9.3 NON-WARRANTY REPAIR.
The following is the procedure for returning for repair instruments that are no longer under warranty:
1. Call Rosemount Analytical for authorization.
2. Supply the purchase order number, and make sure to provide the name and telephone number of the individual to be contacted should additional information be needed.
3. Do Steps 3 and 4 of Section 9.2.
NOTE
Consult the factory for additional informa­tion regarding service or repair.
WARRANTY
Seller warrants that the firmware will execute the programming instructions provided by Seller, and that the Goods manufactured or Services provided by Seller will be free from defects in materials or workmanship under normal use and care until the expira­tion of the applicable warranty period. Goods are warranted for twelve (12) months from the date of initial installation or eighteen (18) months from the date of shipment by Seller, whichever period expires first. Consumables, such as glass electrodes,
membranes, liquid junctions, electrolyte, o-rings, catalytic beads, etc., and Services are warranted for a period of 90 days from the date of shipment or provision.
Products purchased by Seller from a third party for resale to Buyer ("Resale Products") shall carry only the warranty extended by the original manufacturer. Buyer agrees that Seller has no liability for Resale Products beyond making a reasonable commercial effort to arrange for procurement and shipping of the Resale Products.
If Buyer discovers any warranty defects and notifies Seller thereof in writing during the applicable warranty period, Seller shall, at its option, promptly correct any errors that are found by Seller in the firmware or Services, or repair or replace F.O.B. point of man­ufacture that portion of the Goods or firmware found by Seller to be defective, or refund the purchase price of the defective por­tion of the Goods/Services.
All replacements or repairs necessitated by inadequate maintenance, normal wear and usage, unsuitable power sources, unsuit­able environmental conditions, accident, misuse, improper installation, modification, repair, storage or handling, or any other cause not the fault of Seller are not covered by this limited warranty, and shall be at Buyer's expense. Seller shall not be obli­gated to pay any costs or charges incurred by Buyer or any other party except as may be agreed upon in writing in advance by an authorized Seller representative. All costs of dismantling, reinstallation and freight and the time and expenses of Seller's per­sonnel for site travel and diagnosis under this warranty clause shall be borne by Buyer unless accepted in writing by Seller.
Goods repaired and parts replaced during the warranty period shall be in warranty for the remainder of the original warranty peri­od or ninety (90) days, whichever is longer. This limited warranty is the only warranty made by Seller and can be amended only in a writing signed by an authorized representative of Seller. Except as otherwise expressly provided in the Agreement, THERE ARE NO REPRESENTATIONS OR WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FIT­NESS FOR PARTICULAR PURPOSE, OR ANY OTHER MATTER WITH RESPECT TO ANY OF THE GOODS OR SERVICES.
RETURN OF MATERIAL
Material returned for repair, whether in or out of warranty, should be shipped prepaid to:
Emerson Process Management
Liquid Division
2400 Barranca Parkway
Irvine, CA 92606
The shipping container should be marked:
Return for Repair Model
_______________________________
The returned material should be accompanied by a letter of transmittal which should include the following information (make a copy of the "Return of Materials Request" found on the last page of the Manual and provide the following thereon):
1. Location type of service, and length of time of service of the device.
2. Description of the faulty operation of the device and the circumstances of the failure.
3. Name and telephone number of the person to contact if there are questions about the returned material.
4. Statement as to whether warranty or non-warranty service is requested.
5. Complete shipping instructions for return of the material. Adherence to these procedures will expedite handling of the returned material and will prevent unnecessary additional charges
for inspection and testing to determine the problem with the device.
If the material is returned for out-of-warranty repairs, a purchase order for repairs should be enclosed.
Credit Cards for U.S. Purchases Only.
The right people, the right answers, right now.
ON-LINE ORDERING NOW AVAILABLE ON OUR WEB SITE
http://www.raihome.com
Emerson Process Management Liquid Division
2400 Barranca Parkway Irvine, CA 92606 USA Tel: (949) 757-8500 Fax: (949) 474-7250
http://www.raihome.com
© Rosemount Analytical Inc. 2003
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