Teledyne 6000A User Manual

Photometric Analyzer

OPERATING INSTRUCTIONS

Model 6000A

Photometric Analyzer

DANGER

HIGHLY TOXIC AND OR FLAMMABLE LIQUIDS OR GASES MAY BE PRESENT IN THIS MONITORING SYSTEM.

PERSONAL PROTECTIVE EQUIPMENT MAY BE REQUIRED WHEN SERVICING THIS SYSTEM.

HAZARDOUS VOLTAGES EXIST ON CERTAIN COMPONENTS INTERNALLY WHICH MAY PERSIST FOR A TIME EVEN AFTER THE POWER IS TURNED OFF AND DISCONNECTED.

ONLY AUTHORIZED PERSONNEL SHOULD CONDUCT MAINTENANCE AND/OR SERVICING. BEFORE CONDUCTING ANY MAINTENANCE OR SERVICING CONSULT WITH AUTHORIZED SUPERVISOR/ MANAGER.

Teledyne Analytical Instruments

05/08/98

Model 6000A

All Rights Reserved. No part of this manual may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any other language or computer language in whole or in part, in any form or by any means, whether it be electronic, mechanical, magnetic, optical, manual, or otherwise, without the prior written consent of Teledyne Analytical Instruments, 16830 Chestnut Street, City of Industry, CA 91749-

1580.

Warranty

This equipment is sold subject to the mutual agreement that it is warranted by us free from defects of material and of construction, and that our liability shall be limited to replacing or repairing at our factory (without charge, except for transportation), or at customer plant at our option, any material or construction in which defects become apparent within one year from the date of shipment, except in cases where quotations or acknowledgements provide for a shorter period. Components manufactured by others bear the warranty of their manufacturer. This warranty does not cover defects caused by wear, accident, misuse, neglect or repairs other than those performed by Teledyne or an authorized service center. We assume no liability for direct or indirect damages of any kind and the purchaser by the acceptance of the equipment will assume all liability for any damage which may result from its use or misuse.

We reserve the right to employ any suitable material in the manufacture of our apparatus, and to make any alterations in the dimensions, shape or weight of any parts, in so far as such alterations do not adversely affect our warranty.

Important Notice

This instrument provides measurement readings to its user, and serves as a tool by which valuable data can be gathered. The information provided by the instrument may assist the user in eliminating potential hazards caused by his process; however, it is essential that all personnel involved in the use of the instrument or its interface, with the process being measured, be properly trained in the process itself, as well as all instrumentation related to it.

The safety of personnel is ultimately the responsibility of those who control process conditions. While this instrument may be able to provide early warning of imminent danger, it has no control over process conditions, and it can be misused. In particular, any alarm or control systems installed must be tested and understood, both as to how they operate and as to how they can be defeated. Any safeguards required such as locks, labels, or redundancy, must be provided by the user or specifically requested of Teledyne at the time the order is placed.

Therefore, the purchaser must be aware of the hazardous process conditions. The purchaser is responsible for the training of personnel, for providing hazard warning methods and instrumentation per the appropriate standards, and for ensuring that hazard warning devices and instrumentation are maintained and operated properly.

Teledyne Analytical Instruments, the manufacturer of this instrument, cannot accept responsibility for conditions beyond its knowledge and control. No statement expressed or implied by this document or any information disseminated by the manufacturer or its agents, is to be construed as a warranty of adequate safety control under the

user’s process conditions.

Teledyne Analytical Instruments

Photometric Analyzer

Table of Contents

Specific Model Information ................................. iv

Preface ................................................................ v

Part I: Control Unit.................................Part I: 1-1

Part II: Analysis Unit ............................. Part II: 1-1

Appendix ......................................................... A-1

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iii

Model 6000A

Teledyne Analytical Instruments

Part I: Control Unit

OPERATING INSTRUCTIONS

Model 6000A

Photometric Analyzer

Part I: Control Unit

Panel Mount

Teledyne Analytical Instruments

Part I: i

Model 6000A Photometric Analyzer

Table of Contents

1 Introduction

1.1 Overview ........................................................................ 1-1

1.2 Typical Applications ....................................................... 1-1

1.3 Main Features of the Analyzer ....................................... 1-1

1.4 Control Unit Inner Interface Panel .................................. 1-2

1.5 Control Unit Interface Panel ........................................... 1-4

2 Installation

2.1 Unpacking the Control Unit ............................................ 2-1

2.2 Mounting the Control Unit .............................................. 2-1

2.3 Electrical Connections ................................................... 2-3

2.4 Testing the System ......................................................... 2-10

3 Operation

3.1 Introduction .................................................................... 3-1

3.2 Using the Data Entry and Function Buttons ................... 3-1

3.3 The

3.3.1 Setting up an Auto-Cal........................................... 3-4

3.3.2 Password Protection .............................................. 3-6

3.3.3 Logging Out ........................................................... 3-8

3.3.4 System Self-Diagnostic Test .................................. 3-8

3.3.5 The Model Screen ................................................. 3-9

3.3.6 Checking Linearity with Algorithm ......................... 3-9

3.3.7 Digital Flter Setup .................................................. 3-10

3.3.8 Filter or Solenoid Setup ......................................... 3-12

3.3.9 Hold/Track Setup ................................................... 3-12

3.3.10 Calibration/Hold Timer Setup ................................ 3-13

3.3.11 Analog 4 to 20 mA Output Calibration.................... 3-14

3.3.12 Model ..................................................................... 3-15

System

4.3.2.1 Entering the Password ................................... 3-6

4.3.2.2 Installing or Changing the Password ............. 3-7

Function ..................................................... 3-4

ii: Part I

Teledyne Analytical Instruments

Part I: Control Unit

3.4 The

3.4.1 Zero Cal ................................................................. 3-16

3.4.2 Span Cal ................................................................ 3-18

3.5 The

3.6 The

3.6.1 Manual (Select/Define Range) Screen .................. 3-23

3.6.2 Auto Screen ........................................................... 3-23

3.6.3 Precautions............................................................ 3-24

3.7 The

3.8 Programming ................................................................. 3-26

3.8.1 The Set Range Screen .......................................... 3.26

3.8.2 The Curve Algorithm Screen ................................. 3-28

4 Maintenance

Zero

and

Span

Functions ....................................... 3-15

3.4.1.1 Auto Mode Zeroing ........................................ 3-16

3.4.1.2 Manual Mode Zeroing.................................... 3-17

3.4.1.3 Cell Failure .................................................... 3-18

3.4.2.1 Auto Mode Spanning ..................................... 3-18

3.4.2.2 Manual Mode Spanning................................. 3-19

Alarms Range

Analyze

3.8.2.1 Manual Mode Linearization ........................... 3-29

3.8.2.2 Auto Mode Linearization ................................ 3-29

Function...................................................... 3-20

Select Function ........................................... 3-22

Function .................................................... 3-25

4.1 Fuse Replacement......................................................... 4-1

4.2 System Self Diagnostic Test........................................... 4-2

4.3 Major Internal Components ............................................ 4-3

4.4 Cleaning ........................................................................ 4-4

A Appendix

Model 6000A Specifications .................................................. A-3

Teledyne Analytical Instruments

Part I: iii

Model 6000A Photometric Analyzer

iv: Part I

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

Introduction

1.1 Overview

The Teledyne Analytical Instruments Model 6000A Control Unit, together with a 6000A Analysis Unit, is versatile microprocessor-based instrument.

Part I, of this manual covers the Model 6000A General Purpose Panel Mount Control Unit. (The Analysis Unit is covered in Part II of this manual.) The Control Unit is for indoor use in a nonhazardous environment only. The Analysis Unit (or Remote Section) can be designed for a variety of hazardous environments.

1.2 Typical Applications

A few typical applications of the Model 6000A are:

• Oil in refinery waste water condensates Streams

•CL2, HC, SO2, H2S in stack gases or Liquid Streams

• Chemical reaction monitoring

• Product Color monitoring liquids

• Petrochemical process control

• Quality assurance

• Phenol in water

• Hazardous waste incineration

• CLO2, Hypochlorite monitoring

•F2 monitoring

1.3 Main Features of the Analyzer

The Model 6000A Photometric Analyzer is sophisticated yet simple to use. The main features of the analyzer include:

Teledyne Analytical Instruments

Part I: 1-1

1 Introduction Model 6000A

• A 2-line alphanumeric display screen, driven by microprocessor electronics, that continuously prompts and informs the operator.

• High resolution, accurate readings of concentration from low ppm levels through to 100%. Large, bright, meter readout.

• Versatile analysis over a wide range of applications.

• Microprocessor based electronics: 8-bit CMOS microprocessor with 32 kB RAM and 128 kB ROM.

• Three user definable output ranges (from 0-1 ppm through 0-100 %) allow best match to users process and equipment.

• Calibration range for convenient zeroing or spanning.

• Auto Ranging allows analyzer to automatically select the proper preset range for a given measurement. Manual override allows the user to lock onto a specific range of interest.

• Two adjustable concentration alarms and a system failure alarm.

• Extensive self-diagnostic testing, at startup and on demand, with continuous power-supply monitoring.

• RS-232 serial digital port for use with a computer or other digital communication device.

• Analog outputs for concentration and range identification. (0-1 V dc standard, and isolated 4–20 mA dc)

• Superior accuracy.

• Internal calibration (optional).

1.4 Control Unit Inner Control Panel

The standard 6000A Control Unit is housed in a rugged panelmetal case with all remote controls and displays accessible from the front control panel. See Figure 1-1. The front control panel has a digital meter, an alphanumeric Vacuum Fluroscent Display (VFD), and buttons for operating the analyzer.

1-2: Part I

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

Figure 1-1: Front of Panel Control Unit

Function Keys: ---- touch-sensitive membrane switches are used to change

the specific function performed by the analyzer:

• Analyze Perform analysis for concentration content of a sample.

• System Perform system-related tasks (described in detail in chapter

3, Operation.).

• Span Span calibrate the analyzer.

• Zero Zero calibrate the analyzer.

• Alarms Set the alarm setpoints and attributes.

• Range Set up the 3 user definable ranges for the instrument.

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Part I: 1-3

1 Introduction Model 6000A

Data Entry Keys: Six touch-sensitive membrane switches are used to input data to the instrument via the alphanumeric VFD display:

• Left & Right Arrows Select between functions currently

displayed on the VFD screen.

• Up & Down Arrows Increment or decrement values of

functions currently displayed.

• Enter Moves VFD display on to the next screen in a series. If

none remains, returns to the

• Escape Moves VFD display back to the previous screen in a

series. If none remains, returns to the

Digital Meter Display: The meter display is a Light Emitting Diode LED device that produces large, bright, 7-segment numbers that are legible in any lighting. It is accurate across all analysis ranges. The 6000A models produce continuous readout from 0-10,000 ppm and then switch to continuous percent readout from 1-100 %.

Analyze

screen.

Analyze

screen.

Alphanumeric Interface Screen: The backlit VFD screen is an easyto-use interface between operator and analyzer. It displays values, options, and messages for immediate feedback to the operator.

Power Button: The button switches the instrument power

between I (ON) and O (a Keep-Alive state). In the O state, the instrument’s circuitry is operating, but there are no displays or outputs.

CAUTION: The power must be disconnected to fully

disconnect power from the instrument. When chassis is exposed or when access door is open and power cable is connected, use extra care to avoid contact with live electrical circuits .

Access Door: For access to the electronics and interface panel, the front panel swings open when the latch in the panel is pressed all the way in with a narrow gauge tool. Accessing the main circuit board and other electronics requires unfastening the rear panel screws and sliding the unit out of the case.

1.5 Control Unit Interface Panel

The Control Unit interface panel, shown in Figure 1-2, contains the electrical terminal blocks for external inputs and outputs. The input/output functions are described briefly here and in detail in the Installation chapter of this manual.

1-4: Part I

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

Figure 1-2: Model 6000A Rear Panel

Teledyne Analytical Instruments

Part I: 1-5

1 Introduction Model 6000A

• Power Connection AC power source, 115VAC, 50/60 Hz

• Analog Outputs 0-1 V dc concentration and 0-1 V dc

range ID. Isolated 4-20 mA dc and 4-20 mA dc range ID.

• Alarm Connections 2 concentration alarms and 1 system

alarm.

• RS-232 Port Serial digital concentration signal output

and control input.

• Remote Bench Provides all electrical interconnect to the

Analysis Unit.

Remote Span/Zero Digital inputs allow external control of

analyzer calibration.

• Calibration Contact To notify external equipment that

instrument is being calibrated and readings are not monitoring sample.

• Range ID Contacts Four separate, dedicated, range relay

contacts. Low, Medium, High, Cal.

• Network I/O Serial digital communications for local

network access. For future expansion. Not implemented at this printing.

Note: If you require highly accurate Auto-Cal timing, use external

Auto-Cal control where possible. The internal clock in the Model 6000A is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day.

1-6: Part I

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

Installation

Installation of Model 6000A Analyzers includes:

1. Unpacking, mounting, and interconnecting the Control Unit and the Analysis Unit

2. Making gas connections to the system

3. Making electrical connections to the system

4. Testing the system.

This chapter covers installation of the Control Unit. (Installation of the

Analysis Unit is covered in Part II of this manual.)

2.1 Unpacking the Control Unit

The analyzer is shipped with all the materials you need to install and prepare the system for operation. Carefully unpack the Control Unit and inspect it for damage. Immediately report any damage to the shipping agent.

2.2 Mounting the Control Unit

The Model 6000A Control Unit is for indoor use in a general purpose area. This Unit is NOT for any type of hazardous environments.

Figure 2-1 is an illustration of a Model 6000A standard Control Unit front panel and mounting brackets as shown two mounting tabs are at the top and two at the bottom of the units frame.

Teledyne Analytical Instruments

Part I: 2-1

2 Installation Model 6000A

Figure 2-1: Front Panel of the Model 6000A Control Unit

All operator controls are mounted on the inner control panel "door", which is hinged on the left edge and doubles as a door to provide access to the internal components of the instrument. The door will swing open when the button of the latch is pressed all the way in with a narrow gauge tool (less than 0.18 inch wide), such as a small hex wrench or screwdriver

2-2: Part I

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

7.1 2

5 in

Figure 2-2: Required Front Door Clearance

Allow clearance for the door to open in a 90-degree arc of radius 11.75

inches. See Figure 2-2.

2.3 Electrical Connections

Figure 2-3 shows the Control Unit interface panel. Connections for power, communications, and both digital and analog signal outputs are described in the following paragraphs. Wire size and maximum length data appear in the Drawings at the back of this manual.

Figure 2-3: Interface Panel of the Model 6000A Control Unit

For safe connections, ensure that no uninsulated wire extends outside of the terminal blocks. Stripped wire ends must insert completely

into terminal blocks. No uninsulated wiring should come in contact with fingers, tools or clothing during normal operation.

Teledyne Analytical Instruments

Part I: 2-3

2 Installation Model 6000A

Primary Input Power: The power supply requires a 115Vac, 50/60Hz

power source. The power cord receptacle and fuse block are located in the same assembly. Insert the female plug end of the power cord into the power cord receptacle.

CAUTION: Power is applied to the instrument's circuitry as

long as the instrument is connected to the power source. The gray switch on the front panel is for switching power on or off to the displays and out-

puts only.

Fuse Installation: The fuse block, at the right of the power cord

receptacle, accepts US or European size fuses. A jumper replaces the fuse in whichever fuse receptacle is not used. Fuses are not installed at the factory. Be sure to install the proper fuse as part of installation. (See Fuse Replace- ment in chapter 5, maintenance.)

Analog Outputs: There are four terminal blocks, one for each

analog output. There are two connectors per output with the polarity noted. See Figure 2-5.

The outputs are:

0–1 V dc % of Range: Voltage rises linearly with increasing sample con-

centration, from 0 V at 0% to 1 V at 100%. (Full scale = 100% programmed range.)

0–1 V dc Range ID: 0.25 V = Low Range, 0.5 V = Medium Range,

0.75 V = High Range, 1 V = Cal Range.

4–20 mA dc % Range: (-M Option) Current increases linearly with increas-

ing sample concentration, from 4 mA at 0% to 20 mA at full scale 100%. (Full scale = 100% of programmed range.)

4–20 mA dc Range ID: (-M Option) 8 mA = Low Range, 12 mA = Me-

dium Range, 16 mA = High Range, 20 mA = Cal Range.

Figure 2-5: Analog Output Connections

2-4: Part I

Examples:

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

The analog output signal has a voltage which depends on the sample concentration AND the currently activated analysis range. To relate the signal output to the actual concentration, it is necessary to know what range the instrument is currently on, especially when the analyzer is in the autoranging mode.

The signaloutput for concentration is linear over currently selected analysis range. For example, if the analyzer is set on a range that was defined as 0-10 %, then the output would be as shown in Table 2-1.

Table 2-1: Analog Concentration Output-Examples

Analyte Voltage Signal Current Signal

% Output (V dc) Output (mA dc)

0 0.0 4.0 1 0.1 5.6 2 0.2 7.2 3 0.3 8.8 4 0.4 10.4 5 0.5 12.0 6 0.6 13.6 7 0.7 15.2 8 0.8 16.8 9 0.9 18.4

10 1.0 20.0

To provide an indication of the range, a second pair of analog output terminals are used. They generate a steady preset voltage (or current when using the current outputs) to represent a particular range. Table 2-2 gives the range ID output for each analysis range.

Teledyne Analytical Instruments

Part I: 2-5

2 Installation Model 6000A

Table 2-2: Analog Range ID Output - Example

Range Voltage (V) Current (mA)

LO 0.25 8 MED 0.50 12 HI 0.75 16 CAL (0-25%) 1.00 20

Alarm Relays:

There are three alarm-circuit connectors on the alarm relays block (under RELAY OUTPUTS) for making connections to internal alarm relay contacts. Each provides a set of Form C contacts for each type of alarm. Each has both normally open and normally closed contact connections. The contact connections are indicated by diagrams on the rear panel. They are capable of switching up to 3 ampers at 250 V AC into a resistive load (Figure 2-6).

Figure 2-6: Types of Relay Contacts

The connectors are:

Threshold Alarm 1: • Can be configured as high (actuates when

concentration is above threshold), or low (actuates when concentration is below thresh old).

• Can be configured as fail-safe or non-fail-safe.

2-6: Part I

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

• Can be configured as latching or nonlatching.

• Can be configured out (defeated).

Threshold Alarm 2: • Can be configured as high (actuates when concen-

tration is above threshold), or low (actuates when concentration is below threshold).

• Can be configured as fail-safe or non-fail-safe.

• Can be configured as latching or nonlatching.

• Can be configured out (defeated).

System Alarm: Actuates when DC power supplied to circuits is

unacceptable in one or more parameters. Permanently configured as fail-safe and latching. Cannot be defeated. Actuates if self test fails.

To reset a System Alarm during installation, disconnect power to the instrument and then reconnect it

Further detail can be found in chapter 3, section 4-5.

Digital Remote Cal Inputs Remote Zero and Span Inputs: The REMOTE SPAN and RE-

MOTE ZERO inputs are on the DIGITAL INPUT terminal block. They accept 0 V (OFF) or 24 V dc (ON) for remote control of calibration (See Remote Calibration Protocol below.)

Zero: Floating input. 5 to 24 V input across the + and – terminals

puts the analyzer into the ZERO mode. Either side may be grounded at the source of the signal. 0 to 1 volt across the terminals allows ZERO mode to terminate when done. A synchronous signal must open and close the external zero valve appropriately. See Remote Probe Connector at end of section 3.3. (With the -C option, the internal valves automatically operate synchronously).

Span: Floating input. 5 to 24 V input across the + and – terminals

puts the analyzer into the grounded at the source of the signal. 0 to 1 volt across the terminals allows SPAN mode to terminate when done. A synchronous signal must open and close the external span valve appropriately. See Remote Probe Connector at end of section 3.3. (With the -C option, the internal valves automatically operate synchronously.)

SPAN

mode. Either side may be

Cal Contact: This relay contact is closed while analyzer is spanning

and/or zeroing. (See Remote Calibration Protocol below.)

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Part I: 2-7

2 Installation Model 6000A

Remote Calibration Protocol: To properly time the Digital Remote

Cal Inputs to the Model 6000A Analyzer, the customer's controller must monitor the Cal Relay Contact.

When the contact is OPEN, the analyzer is analyzing, the Remote Cal

Inputs are being polled, and a zero or span command can be sent.

When the contact is CLOSED, the analyzer is already calibrating. It

will ignore your request to calibrate, and it will not remember that request.

Once a zero or span command is sent, and acknowledged (contact closes), release it. If the command is continued until after the zero or span is complete, the calibration will repeat and the Cal Relay Contact (CRC) will close again.

For example:

1) Test the CRC. When the CRC is open, Send a zero command until the CRC closes (The CRC will quickly close.)

2) When the CRC closes, remove the zero command.

3) When CRC opens again, send a span command until the CRC closes. (The CRC will quickly close.)

4) When the CRC closes, remove the span command.

When CRC opens again, zero and span are done, and the sample is

being analyzed.

Note: The Remote Bench connector (paragraph 3.3) provides signals

to ensure that the zero and span gas valves will be controlled synchronously.

Range ID Relays: Four dedicated RANGE ID CONTACT relays .

The first three ranges are assigned to relays in ascending order—Low range is assigned to RANGE 1 ID, Medium range is assigned to RANGE 2 ID, and High range is assigned to RANGE 3 ID.

Network I/O: A serial digital input/output for local network protocol.

At this printing, this port is not yet functional. It is to be used in future versions of the instrument.

RS-232 Port: The digital signal output is a standard RS-232 serial

communications port used to connect the analyzer to a computer, terminal, or other digital device. The pinouts are listed in Table 2-3.

2-8: Part I

Table 2-3: RS-232 Signals

RS-232 Sig RS-232 Pin Purpose

DCD 1 Data Carrier Detect

Teledyne Analytical Instruments

Photometric Analyzer Part I: Control Unit

RD 2 Received Data TD 3 Transmitted Data DTR 4 Data Terminal Ready COM 5 Common DSR 6 Data Set Ready RTS 7 Request to Send CTS 8 Clear to Send RI 9 Ring Indicator

The data sent is status information, in digital form, updated every two

seconds. Status is reported in the following order:

• The concentration in percent

• The range is use (HI< MED< LO)

• The span of the range 0-100%, etc)

• Which alarm - if any - are disabled (AL-x DISABLED)

• Which alarms - if any - are tripped (AL-x ON)

Each status output is followed by a carriage return and line feed.

Three input functions using RS-232 have been implemented to date.

They are described in Table 2-4.

Table 2-4: Commands via RS-232 Input

Command Description as<enter> Immediately starts an autospan. az<enter> Immediately starts an autozero. st<enter> Toggling input. Stops/Starts any status message output

from the RS-232, Until st<enter> is sent again.

The RS-232 protocol allows some flexibility in its implementation.

Table 2-5 lists certain RS-232 values that are required by the 6000A.

Teledyne Analytical Instruments

Part I: 2-9

2 Installation Model 6000A

Table 2-5: Required RS-232 Options

Parameter Setting

Baud 2400

Byte 8 bits

Parity none

Stop Bits 1

Message Interval 2 seconds

Remote Bench and Solenoid Valves: The 6000A is a single-chassis

instrument. However, the REMOTE BENCH and SOLENOID RETURN connector is provided on the uper right corner of the backpanel as a 12 pin connector. The Remote Bench is wired at the factory as well as any optional solenoid valves included in the system.

2.4 Testing the System

After The Control Unit and the Analysis Unit are both installed and

interconnected, and the system gas and electrical connections are complete, the system is ready to test. Before plugging either of the units into their respective power sources:

• Check the integrity and accuracy of the gas connections. Make sure there are no leaks.

• Check the integrity and accuracy of all electrical connections. Make sure there are no exposed conductors

• Check that sample pressure typically between 0 and 30 psig, according to the requirements of your process.

Power up the system, and test it by performing the following operation:

1. Repeat the Self-Diagnostic Test as.

2-10: Part I

Teledyne Analytical Instruments

Photometric Analyzer Operation 3

Operation

3.1 Introduction

Although the Model 6000A is usually programmed to your application at

the factory, it can be further configured at the operator level, or even, cautious- ly, reprogrammed. Depending on the specifics of the application, this might include all or a subset of the following procedures:

• Setting system parameters:

• Establish a security password, if desired, requiring Operator to log in (secure in safe file for referrence).

• Establish and start an automatic calibration cycle, if desired.

• Routine Operation:

• Calibrate the instrument.

• Choose autoranging or select a fixed range of analysis.

• Set alarm setpoints, and modes of alarm operation (latching, fail-safe, etc).

• Program/Reprogram the analyzer:

• Define new applications.

• Linearize your ranges.

If you choose not to use password protection, the default password is automatically displayed on the password screen when you start up, and you simply press

Enter

for access to all functions of the analyzer.

3.2 Using the Data Entry and Function Buttons

Data Entry Buttons: The < > buttons select options from the menu currently being displayed on the VFD screen. The selected option blinks.

When the selected option includes a modifiable item, the can be used to increment or decrement that modifiable item.

Teledyne Analytical Instruments

∆∆

∆∇ arrow buttons

∆∆

Part I 3-1

3 Operation Model 6000A

The

Enter

Escape

The not yet accepted by use of the

Figure 4-1 shows the hierarchy of functions available to the operator via the

function buttons. The six function buttons on the analyzer are:

•

• Four of these are for ordinary setup and operation:

button is used to accept any new entries on the VFD screen.

button is used to abort any new entries on the VFD screen that are

Enter

Analyze.

monitors the thermal conductivity of the sample, displays the percent or parts-per-million of target gas or contamination, and warns of any alarm conditions.

System.

• Setup an Auto-Cal

• Assign Passwords

• Log out to secure system

This is the normal operating mode. The analyzer

The system function consists of nine subfunctions.

button.

• Initiate a Self-Test

Three of the subfunctions do auxiliary tasks:

• Checking model and software version

• Adjust electronic filter of the signal

• Display more subfunctions

Two of these are for programming/reprogramming the analyzer:

• Define gas applications and ranges (Refer to programming section, or contact factory.)

• Use the Curve Algorithm to linearize output. (Refer to programming section, or contact factory.)

•

Zero

. Used to set up a zero calibration.

•

Span.

•

Alarms.

each alarm will be active or defeated, HI or LO acting, latching, and/or fail-safe.

•

Range.

switched automatically with autoranging or used as individual fixed ranges.

Used to set up a span calibration.

Used to set the alarm setpoints and determine whether

Used to set up three analysis ranges that can be

Any function can be selected at any time by pressing the appropriate button (unless password restrictions apply). The order as presented in this manual is appropriate for an initial setup.

Each of these functions is described in greater detail in the following procedures. The VFD screen text that accompanies each operation is reproduced, at

3-2 Part I

Teledyne Analytical Instruments

Photometric Analyzer Operation 3

System

Dig_filt

SELF-TEST

PWD

LOGOUT

AUTOCAL

FILSOL

TRACK or

HOLD

CAL-HOLD

TIMER

Set Digital

Filter

Self-Test in

Progress

Enter

Password

Secure System

setup not allowed

Span/Zero status

and <>setup

Span/Zero

Solenoid or Filter

Set track or hold output

Set cal. hold and

sample hold timer

Self-Test

Results

Change Yes/No

Span/Zero timing

and on/off

Enter

Change

Password

Enter

Verify

Password

Enter

ALGORITHM

APPLICATION

MODEL

OUTPUT:

4 or 20 MA

Select range

Display

Model/Version

Set current

output

Display gas use

and range

Define

Application/Range

Enter

Select

Verify/Setup

Enter

Verify data

Points

Auto/Manual

linear Cal.

Enter

Input/Output

Enter Span

gas value

Figure 3-1: Hierarchy of System Functions and Subfunctions

Enter

Teledyne Analytical Instruments

Part I 3-3

3 Operation Model 6000A

the appropriate point in the procedure, in a Monospaced type style. Push-button names are printed in

Oblique

type.

3.3 The

The subfuctions of the procedures for their use follow the descriptions:

• Dig_Filt: Adjust how much digital filtering should be on the

signal

• SELF-TEST: Performs a self-diagnostic test to check the integrity

of the power supplies, outputs, detector signal and preamplifier.

• PWD: Login security system for accessing to the setup functions.

• LOGOUT: Prevents an unauthorized tampering with analyzer

settings.

• AUTOCAL: Set the automatic calibrated timer schedule for Zero

and Span cycling.

• FILSOL: Select Span/Zero flag (filter) or Span/Zero solenoid

valve for calibration method.

• TRACK: Set the system reading to be held or followed by the

concentration “gas or filter” during calibration.

• CAL-HOLD-TIMER: Set the timing for calibration holding and

timing for the sample reading after return to analyze mode.

System

Function

function are described below. Specific

• ALGORITHM: Linearize the output for nonlinear characteristic.

• APPLICATION: Used to define the analysis ranges and application

(gas used).

• MODEL: Displays model number and software version.

• OUTPUT: 4-20 MA: Adjust 4 and 20 mA output.

3.3.1 Setting up an AUTO-CAL

When proper automatic valving is connected, the Analyzer can cycle itself through a sequence of steps that automatically zero and span the instrument.

Note: Before setting up an AUTO-CAL, be sure you understand the

Zero

and

Span

functions as described in section 4.4, and

follow the precautions given there.

3-4 Part I

Teledyne Analytical Instruments

Photometric Analyzer Operation 3

Note: If you require highly accurate AUTO-CAL timing, use external

AUTO-CAL control where possible. The internal clock in the Model 6000A is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day.

To setup an AutoCal cycle: Choose

System

from the Function buttons. TheVFD will display five

subfunctions.

DIG_FILT SELFTEST PWD LOGOUT MORE

Select MORE and press the Enter Key

AUTOCAL FILSOL HOLD CAL-HOLD-TIMER MORE

Use < > arrows to blink AUTOCAL, and press

Enter

. A new screen

for ZERO/SPAN set appears.

ZERO in Ød Øh off SPAN in Ød Øh off

Press < > arrows to blink ZERO (or SPAN), then press

Enter

again. (You

won’t be able to set OFF to ON if a zero interval is entered.) A Span Every

... (or Zero Every ...) screen appears.

Zero schedule: OFF Day: Ød Hour: Øh

∆∆

Use

∆∇ arrows to set an interval value, then use < > arrows to move to the

∆∆

start-time value. Use

∆∆

∆∇ arrows to set a start-time value.

∆∆

To turn ON the SPAN and/or ZERO cycles (to activate AUTOCAL): Press

System

again, choose AUTOCAL, and press

Enter

again. When the ZERO/

SPAN values screen appears, use the < > arrows to blink the ZERO (or SPAN)

and press

∆∆

∆∇ arrows to set the OFF/ON field to ON. You can now turn these fields ON

∆∆

Enter

to go to the next screen. Use < > to select OFF/ON field. Use

because there is a nonzero span interval defined.

If instrument is turned off, the next time the instrument is powered, the instrument will automatically perform a calibration cycle after 3 minutes of entering the sample mode if AUTOCAL functions were on prior to shut down.

Teledyne Analytical Instruments

Part I 3-5

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