Teledyne 300M User manual

INSTRUCTION MANUAL
MODEL 300M
CARBON MONOXIDE ANALYZER
TELEDYNE INSTRUMENTS
ADVANCED POLLUTION INSTRUMENTATION DIVISION
(T-API)
6565 NANCY RIDGE DRIVE
SAN DIEGO, CA 92121-2251
TOLL-FREE: 800-324-5190
FAX: [phone]
TEL: [phone]
E-MAIL: [email protected]
WEB SITE: www.teledyne-api.com
04033
Revision A
Copyright 2001 API Inc 1/15/01

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
SAFETY MESSAGES
Your safety and the safety of others is very important. We have provided many important safety
messages in this manual. Please read these messages carefully.
A safety message alerts you to potential hazards that could hurt you or others. Each safety
message is associated with a safety alert symbol. These symbols are found in the manual and
inside the instrument. The definition of these symbols is described below:
GENERAL WARNING/CAUTION: Refer to the instructions for details on the
specific danger.
CAUTION: Hot Surface Warning
CAUTION: Electrical Shock Hazard
TECHNICIAN SYMBOL: All operations marked with this symbol are to be
performed by qualified maintenance personnel only.
CAUTION
The analyzer should only be used for the purpose
and in the manner described in this manual.
If you use the analyzer in a manner other than that for which
it was intended, unpredictable behavior could ensue with
possible hazardous consequences.
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
TABLE OF CONTENTS
SAFETY MESSAGES .........................................................................................II
TABLE OF CONTENTS .....................................................................................III
LIST OF FIGURES ........................................................................................... VII
LIST OF TABLES............................................................................................ VIII
1 INTRODUCTION .......................................................................................... 1-1
1.1 PREFACE .......................................................................................................................1-1
1.2 WARRANTY ....................................................................................................................1-1
1.3 PRINCIPLE OF OPERATION ...............................................................................................1-3
1.4 SPECIFICATIONS .............................................................................................................1-5
1.5 INSTALLATION AND OVERVIEW .........................................................................................1-6
1.6 ELECTRICAL AND PNEUMATIC CONNECTIONS ..................................................................1-11
1.6.1 Electrical Connections .........................................................................................1-11
1.6.2 Remote Contact Closures Zero/Span Inputs .......................................................1-11
1.6.3 Status Outputs (Optional) ....................................................................................1-11
1.6.4 RS-232 ................................................................................................................1-12
1.6.5 Pneumatic System...............................................................................................1-12
1.6.6 Sample Gas Connection......................................................................................1-13
1.6.7 Zero/Span Valve Connections .............................................................................1-13
1.6.8 Exhaust Connections...........................................................................................1-13
1.7 OPERATION VERIFICATION.............................................................................................1-15
1.8 OPTIONS......................................................................................................................1-17
1.8.1 Rack Mount With Slides ......................................................................................1-17
1.8.2 Span Valve ..........................................................................................................1-17
2 OPERATION ................................................................................................ 2-1
2.1 KEY FEATURES...............................................................................................................2-1
2.1.1 CO Readout...........................................................................................................2-1
2.1.2 CO Analog Output .................................................................................................2-1
2.1.3 E2ROM Backup Of Software Configuration ...........................................................2-1
2.1.4 Adaptive Filter........................................................................................................2-1
2.1.5 Data Acquisition (DAS)..........................................................................................2-2
2.1.6 RS-232 Interface ...................................................................................................2-2
2.1.7 Password Protection..............................................................................................2-2
2.2 FRONT PANEL ................................................................................................................2-3
2.2.1 Front Panel Display ...............................................................................................2-3
2.2.2 Programmable Push Buttons.................................................................................2-7
2.2.3 Status LED’s..........................................................................................................2-8
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
3 PERFORMANCE TESTING ......................................................................... 3-1
3.1 MANUAL ZERO/SPAN CHECK ...........................................................................................3-1
3.1.1 Zero Check............................................................................................................3-1
3.1.2 Span Check...........................................................................................................3-2
3.1.3 Dual Range Calibration .........................................................................................3-3
3.2 SPAN VALVE (OPTION)....................................................................................................3-4
3.3 ZERO/SPAN VALVES (OPTION).........................................................................................3-4
3.4 AUTOMATIC ZERO/SPAN CHECK ......................................................................................3-5
3.5 SUMMARY OF FRONT PANEL CHECK AND CALIBRATION CONTROLS.....................................3-8
3.6 REMOTE ZERO/SPAN CHECK OR ADJUSTMENT (CONTACT CLOSURE).................................3-9
3.7 REMOTE ZERO/SPAN CHECK OR ADJUSTMENT (RS-232) ................................................3-10
3.8 POWER-ON HOLD OFF..................................................................................................3-10
3.9 HOLD OFF ...................................................................................................................3-10
4 SETUP MODE .............................................................................................. 4-1
4.1 SETUP MODE OPERATION ...............................................................................................4-1
4.2 EXAMINING THE CARBON MONOXIDE FORMULA SLOPE AND OFFSET ...................................4-1
4.3 SETTING THE TIME-OF-DAY .............................................................................................4-2
4.4 SETTING THE DATE .........................................................................................................4-2
4.5 ADJUSTING THE CLOCK SPEED ........................................................................................4-2
4.6 SETTING THE CO CONCENTRATION RANGE ......................................................................4-3
4.6.1 Single Range Mode (SNGL) ..................................................................................4-3
4.6.2 Dual Range Mode (DUAL).....................................................................................4-3
4.6.3 Auto Range Mode (AUTO) ....................................................................................4-3
4.7 SETTING THE ANALOG OUTPUT OFFSET ...........................................................................4-4
4.8 SETTING THE RS-232 BAUD RATE...................................................................................4-4
4.9 SETTING THE ANALYZER I.D. ...........................................................................................4-4
4.10 DISABLING THE CALIBRATION PASSWORD .......................................................................4-4
4.11 DATA ACQUISITION SYSTEM (DAS)................................................................................4-5
4.11.1 Data Channels.....................................................................................................4-5
4.12 SOFTWARE CONFIGURATION .........................................................................................4-6
4.13 GAS ALARMS................................................................................................................4-7
4.13.1 Summary of Setup Functions ..............................................................................4-7
5 DIAGNOSTICS............................................................................................. 5-1
5.1 TEST MEASUREMENTS ....................................................................................................5-1
5.2 DIAGNOSTIC TESTS ........................................................................................................5-2
5.2.1 Signal I/O...............................................................................................................5-3
5.2.2 Analog Output Test................................................................................................5-6
5.2.3 Electric Test...........................................................................................................5-6
5.3 M300M INTERNAL VARIABLES .........................................................................................5-7
6 HANDLING WARNINGS.............................................................................. 6-1
7 RS-232 COMMUNICATIONS....................................................................... 7-1
7.1 DAS REPORTING ...........................................................................................................7-2
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
7.2 WARNINGS.....................................................................................................................7-4
7.3 STATUS/CONTROL ..........................................................................................................7-6
7.4 DIAGNOSTICS .................................................................................................................7-8
7.5 TEST MEASUREMENTS ....................................................................................................7-9
7.6 VIEWING AND MODIFYING VARIABLES .............................................................................7-11
8 CALIBRATION ............................................................................................. 8-1
8.1 REQUIRED EQUIPMENT AND GAS STANDARDS...................................................................8-1
8.2 MULTI-POINT CALIBRATION .............................................................................................8-3
8.2.1 Procedure..............................................................................................................8-4
8.3 ZERO/SPAN CHECKING ...................................................................................................8-7
9 ADJUSTMENTS........................................................................................... 9-1
9.1 POWER SUPPLY BOARD ADJUSTMENT..............................................................................9-1
9.1.1 Box Temperature Limits ........................................................................................9-1
9.2 A/D - D/A CALIBRATION PROCEDURE ..............................................................................9-3
9.3 DARK CURRENT SIGNAL ADJUST PROCEDURE ..................................................................9-5
9.4 OUTPUT VOLTAGE RANGE CHANGES................................................................................9-5
9.5 FLOW READOUT ADJUSTMENT .........................................................................................9-6
9.6 DC POWER SUPPLY .......................................................................................................9-7
9.7 CPU .............................................................................................................................9-7
10 TROUBLESHOOTING ............................................................................. 10-1
10.1 OVERVIEW .................................................................................................................10-1
10.2 TROUBLESHOOTING FUNDAMENTAL ANALYZER OPERATION............................................10-2
10.2.1 Checking the Power Sub-Systems ....................................................................10-2
10.2.2 Checking the CPU and Display .........................................................................10-3
10.2.3 Checking the Keyboard .....................................................................................10-3
10.3 TROUBLESHOOTING USING WARNING MESSAGES..........................................................10-3
10.4 TROUBLESHOOTING USING TEST FUNCTION VALUES .....................................................10-5
10.5 TROUBLESHOOTING DYNAMIC PROBLEMS.....................................................................10-7
10.5.1 Noisy or Unstable Readings at Zero..................................................................10-7
10.5.2 Noisy, Unstable, or Non-Linear Span Readings ................................................10-7
10.5.3 Slow Response to Changes in Concentration ...................................................10-7
10.5.4 Analog Outputs Do Not Agree With Front Panel Readings ...............................10-8
10.5.5 Cannot Zero or Cannot Dynamic Zero...............................................................10-8
10.5.6 Cannot Span or Cannot Dynamic Span.............................................................10-8
10.6 TROUBLESHOOTING INDIVIDUAL SUB-ASSEMBLIES AND COMPONENTS ............................10-8
10.6.1 Troubleshooting Flow Problems ........................................................................10-8
10.6.2 Troubleshooting Temperature Problems .........................................................10-10
10.6.3 Checking the V/F Card ....................................................................................10-11
10.6.4 Checking the DC Power Supply Board............................................................10-14
10.6.5 Checking the Synchronous Demodulator Board..............................................10-15
10.6.6 Checking the Opto Interrupter .........................................................................10-16
10.6.7 Flow/Pressure Sensor .....................................................................................10-17
10.7 WARRANTY/REPAIR QUESTIONNAIRE .........................................................................10-18
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
11 ROUTINE MAINTENANCE ...................................................................... 11-1
11.1 MODEL 300M MAINTENANCE SCHEDULE......................................................................11-1
11.2 REPLACEMENT OF SAMPLE FILTER ...............................................................................11-2
11.3 LEAK CHECKING .........................................................................................................11-2
11.3.1 Using a Leak Checker .......................................................................................11-2
11.3.2 Leak Self Test....................................................................................................11-3
12 SPARE PARTS LISTS ............................................................................. 12-1
12.1 SPARE PARTS FOR CE MARK UNITS .............................................................................12-1
12.2 MODEL 300M EXPENDABLES KIT .................................................................................12-2
12.3 MODEL 300M SPARE PARTS KIT (FOR ONE UNIT)...........................................................12-2
12.4 MODEL 300M LEVEL 1 PARTS KIT (FOR TEN UNITS) .......................................................12-3
APPENDIX A TIPS ON CONNECTING THE TELEDYNE API ANALYZER RS-
232 INTERFACE .........................................................................................A-1
APPENDIX B ELECTRICAL DRAWING INDEX.............................................B-1
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
LIST OF FIGURES
FIGURE 1-1: PNEUMATIC DIAGRAM...........................................................................................1-4
FIGURE 1-2: CARBON MONOXIDE ANALYZER .............................................................................1-9
FIGURE 1-3: REAR PANEL ELECTRICAL/PNEUMATIC CONNECTIONS...........................................1-10
FIGURE 1-4: REAR PANEL......................................................................................................1-14
FIGURE 2-1: MODEL 300M FRONT PANEL.................................................................................2-4
FIGURE 2-2: ILLUSTRATION OF NORMAL DISPLAY.......................................................................2-8
FIGURE 8-1: GAS GENERATION SYSTEM ...................................................................................8-2
FIGURE 8-2: INLET VENTING RECOMMENDATIONS......................................................................8-2
FIGURE 9-1: M300M ELECTRICAL BLOCK DIAGRAM ..................................................................9-2
FIGURE 10-1: OPTO PICKUP WAVEFORM ..............................................................................10-16
FIGURE 10-2: DETECTOR WAVEFORM ..................................................................................10-16
FIGURE A-1: RS-232 PIN ASSIGNMENTS ................................................................................. A-1
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
LIST OF TABLES
TABLE 1-1: STATUS OUTPUTS................................................................................................1-12
TABLE 1-2: FINAL TEST AND CALIBRATION VALUES ..................................................................1-16
TABLE 2-1: PASSWORD LEVELS ...............................................................................................2-2
TABLE 2-2: SYSTEM MODES ....................................................................................................2-5
TABLE 2-3: TEST MEASUREMENTS ...........................................................................................2-6
TABLE 2-4: WARNING MESSAGES.............................................................................................2-7
TABLE 2-5: STATUS LED’S......................................................................................................2-9
TABLE 3-1: CALIBRATION CONTROLS........................................................................................3-8
TABLE 4-1: SETUP FUNCTIONS.................................................................................................4-8
TABLE 4-1: SETUP FUNCTIONS (CONTINUED) ............................................................................4-9
TABLE 5-1: DIAGNOSTIC TESTS................................................................................................5-2
TABLE 5-2: I/O SIGNALS..........................................................................................................5-3
TABLE 5-2: I/O SIGNALS (CONTINUED) .....................................................................................5-4
TABLE 5-2: I/O SIGNALS (CONTINUED) .....................................................................................5-5
TABLE 5-2: I/O SIGNALS (CONTINUED) .....................................................................................5-6
TABLE 5-3: M300M VARIABLES ...............................................................................................5-7
TABLE 7-1: RS-232 PORT SETUP - FRONT PANEL ....................................................................7-1
TABLE 7-2: RS-232 MESSAGE TYPES ......................................................................................7-2
TABLE 7-3: RS-232 WARNING MESSAGE CLEAR COMMANDS.....................................................7-5
TABLE 7-4: STATUS REPORTS..................................................................................................7-6
TABLE 7-5: CONTROL COMMANDS............................................................................................7-7
TABLE 7-6: DIAGNOSTIC COMMANDS ........................................................................................7-8
TABLE 7-7: DIAGNOSTIC REPORTS ...........................................................................................7-8
TABLE 7-8: TEST MEASUREMENT REQUEST COMMANDS ..........................................................7-10
TABLE 7-9: RS-232 VARIABLE NAMES ...................................................................................7-12
TABLE 10-1: WARNING MESSAGES.........................................................................................10-4
TABLE 10-2: TEST FUNCTION VALUES ....................................................................................10-6
TABLE 10-3: V/F BOARD JUMPERS - FACTORY SETTINGS ......................................................10-12
TABLE 10-4: V/F BOARD SWITCH SETTINGS - RANGES FOR ANALOG OUTPUT .........................10-12
TABLE 11-1: MAINTENANCE SCHEDULE ..................................................................................11-1
viii

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
1 INTRODUCTION
1.1 Preface
Teledyne API is pleased that you have purchased the Model 300M. This manual has been
designed to allow easy commissioning and operation but if we may be of assistance Teledyne
API will be pleased to provide you with any support required.
The Teledyne API Model 300M keyboard/operator interface is user-friendly. We hope you will
not experience any problems with the Model 300M and the built-in tests and diagnostics should
allow you to quickly and easily rectify any problems you may encounter. In addition, our
customer service department is always available to answer your questions.
1.2 Warranty
WARRANTY POLICY (02024c)
Prior to shipment, Teledyne API equipment is thoroughly inspected and tested. Should
equipment failure occur, Teledyne API assures its customers that prompt service and support
will be available.
COVERAGE
After the warranty period and throughout the equipment lifetime, Teledyne API stands ready to
provide on-site or in-plant service at reasonable rates similar to those of other manufacturers in
the industry. All maintenance and the first level of field troubleshooting is to be performed by
the customer.
NON-TELEDYNE API MANUFACTURED EQUIPMENT
Equipment provided but not manufactured by Teledyne API is warranted and will be repaired to
the extent and according to the current terms and conditions of the respective equipment
manufacturers warranty.
GENERAL
Teledyne API warrants each Product manufactured by T Teledyne API to be free from defects in
material and workmanship under normal use and service for a period of one year from the date of
delivery. All replacement parts and repairs are warranted for 90 days after the purchase.
If a Product fails to conform to its specifications within the warranty period, Teledyne API shall
correct such defect by, in Teledyne API's discretion, repairing or replacing such defective
Product or refunding the purchase price of such Product.
1-1

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
The warranties set forth in this section shall be of no force or effect with respect to any Product:
(i) that has been altered or subjected to misuse, negligence or accident, or (ii) that has been used
in any manner other than in accordance with the instruction provided by Teledyne API or (iii)
not properly maintained.
THE WARRANTIES SET FORTH IN THIS SECTION AND THE REMEDIES
THEREFORE ARE EXCLUSIVE AND IN LIEU OF ANY IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE OR OTHER
WARRANTY OF QUALITY, WHETHER EXPRESSED OR IMPLIED. THE
REMEDIES SET FORTH IN THIS SECTION ARE THE EXCLUSIVE REMEDIES FOR
BREACH OF ANY WARRANTY CONTAINED HEREIN. TELEDYNE API SHALL
NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
ARISING OUT OF OR RELATED TO THIS AGREEMENT OF TELEDYNE API'S
PERFORMANCE HEREUNDER, WHETHER FOR BREACH OF WARRANTY OR
OTHERWISE.
TERMS AND CONDITIONS
All units or components returned to Teledyne API should be properly packed for handling and
returned freight prepaid to the nearest designated Service Center. After the repair, the equipment
will be returned, freight prepaid.
1-2

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
1.3 Principle of Operation
The detection and measurement of Carbon Monoxide in the Model 300M is based on the
absorption of Infra Red (IR) radiation by CO molecules at wavelengths near 4.5 microns. As
illustrated in Figure 1-1, the Model 300M uses a high energy heated element to generate broad-
band IR light. This light is passed through a rotating Gas Filter Wheel causing the beam to
alternately pass through a gas cell filled with Nitrogen, (the Measure Cell) and a cell filled with
CO/Nitrogen Mixture (the Reference Cell). This alternation occurs at a rate of 30 cycles/second
and causes the beam to be modulated into Reference and Measure pulses. During a Reference
pulse, the CO in the gas filter wheel effectively strips the beam of all IR energy at wavelengths
where CO can absorb. This results in a beam which is unaffected by any CO in the Sample Cell.
During the Measure pulse, the Nitrogen in the filter wheel does not affect the beam which can
subsequently be absorbed by any CO in the sample cell. The Gas Filter wheel also incorporates
an optical chopping mask which superimposes a 180 Cycles/Second Light/Dark modulation on
the IR Beam. This high frequency modulation is used to maximize detector signal-to-noise
performance.
After the gas filter wheel, the IR beam enters the single pass sample cell. The beam then passes
through a band-pass interference filter to limit the light to the wavelengths of interest. Finally,
the beam strikes the detector which is a thermoelectrically cooled solid-state photo-conductor.
This detector, along with its pre-amplifier converts the light signal into a modulated voltage
signal.
The detector output is electronically demodulated to generate two DC voltages, CO MEAS and
CO REF. These voltages are proportional to the light intensity striking the detector during the
Measure pulse and Reference pulse, respectively.
1-3

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Figure 1-1: Pneumatic Diagram
1-4

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
1.4 Specifications
Ranges User selectable to any full-scale range from 0 - 30 PPM up to 0 - 3,000 PPM
Zero Noise < 0.1 PPM (rms)
Span Noise < 0.5% of reading (rms) or 0.1 PPM (rms)
Lower Detectable Limit 0.2 PPM
Zero Drift (24 hours) * <0.5 PPM
Zero Drift (7 days) * <1.0 PPM
Span Drift (7 days) * 1% of reading
Linearity 1% of Full Scale
Rise/Fall Time (95%) <60 sec to 95%
Sample Flow Rate 800cc/min. ±10%
Temperature Range 5-40°C
Humidity Range 0-95%RH, non-condensing
Dust Sample must be dust free
Temp Coefficient < 0.5 PPM per °C
Voltage Coefficient < 0.5 PPM per Volt
Dimensions HxWxD 7" x 17" x 25" (178 mm x 432 mm x 635 mm)
Weight 50 lbs (22.7 kg)
Power 100 50/60 Hz, 115 60 Hz, 220V 50/60 Hz., 240 V 50 Hz. 250 Watts
Power, CE 230 V/50 Hz, 250 Watts
Recorder Outputs ±100 mV, ±1 V, ±5 V, ±10 V (Bi-Polar)
Status Output 9 status outputs from opt-isolators
Alarm output 3 opto-isolators to drive TTL relays
* at constant temperature and voltage
1-5

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
1.5 Installation and Overview
The Model 300M is shipped with the following standard equipment:
1. Power cord
2. Operation manual
CAUTION
To avoid personal injury, always use two persons to
lift and carry the Model 300M.
Upon receiving the Model 300M please do the following:
1. Verify no apparent shipping damage. (If damage has occurred please advise shipper first,
then Teledyne API.)
2. Before operation it is necessary to remove the shipping hold down screws. Remove the
instrument cover, then refer to Figure 1-2 for screw location.
3. When installing the Model 300M, allow a minimum of 4 inches (10 cm) of clearance at the
back of the instrument and 1 inch (2.5 cm) of clearance on each side for proper ventilation.
Also, be sure that the clearance below the chassis is unobstructed by at least the height of the
instrument feet.
4. Connect sample inlet line to the sample port on rear panel.
NOTE
See Figure 1-3 for rear panel pneumatic connections. Sample gas
should only come into contact with PTFE, glass or stainless steel.
Leak check all fittings with soap solution.
CAUTION
Connect the exhaust fitting on the rear panel (see Figure 1-4) to a
suitable vent outside the analyzer area.
5. Connect a recording device to the terminal strip connections on the rear panel (See
Figure 1-3).
6. Connect the power cord to an appropriate power outlet (see the serial number tag for correct
voltage and frequency).
1-6

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
CAUTION
Check that analyzer is set up for proper voltage and frequency.
CAUTION
Power plug must have ground lug.
7. Turn on the M300M by switching the switch on the lower right corner of the front panel (See
Figure 2-1). The front panel display should light with a sequence of messages, -API -
M300M - software version number, then a normal display as shown in Figure 2-2.
8. Allow about 30 minutes for the temperatures to come up to their respective set-points, then
press the left most button on the front keyboard to scroll through the TEST values. Compare
these values to those noted during the final factory checkout listed in Table 1-2. The values
observed should closely match the Table 1-2 values.
9. Select the range on which the analyzer will be calibrated.
A. From the SAMPLE menu, press SETUP to enter the SETUP menu. (See Figure 2-2 for
appearance of front panel.)
B. Enter the PASSWORD (818).
C. Press RNGE (RANGE).
D. Press SET.
E. Enter the derived full scale range for analog outputs and press ENTR.
F. Press EXIT 2 times to return to the SAMPLE menu.
10. Adjust the analyzer zero point.
A. Input zero air into the sample port.
B. Press CAL from the SAMPLE menu and enter the password (818).
C. Press ZERO.
D. It usually takes about 5 to 10 minutes for the reading to stabilize near zero. After a stable
reading has been obtained press ENTR. The display should now read 0.0 PPM Carbon
Monoxide.
1-7

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
NOTE
Repeatedly pressing enter during span/zero calibration does not
improve the accuracy of the calibration, nor does it speed up
stabilization Allow 5 - 10 minutes to establish an accurate average
for the span/zero reading.
11. Adjust the analyzer span point.
A. Input span gas of approximately 80% of the related full scale range concentration from a
known source through the sample port of the analyzer.
B. Go to manual calibration by pressing the CAL button while in the sample mode.
C. Enter the operator password (818).
D. The menu should now show SPAN, CONC, and EXIT. Enter the concentration of the CO
calibration gas by pressing CONC and entering the value from the keyboard.
E. Wait 10 minutes for a stable reading to be attained and then press SPAN, followed by
ENTR. If the SPAN button is not displayed, this means that the analyzer is too far out of
adjustment to do a reliable calibration and thus it is not permitted (see Section 3.1 for
information on the calibration). The operator can exit the manual calibration procedure
only by pressing the EXIT button.
1-8

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Figure 1-2: Carbon Monoxide Analyzer
1-9

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Figure 1-3: Rear Panel Electrical/Pneumatic Connections
1-10

Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
1.6 Electrical and Pneumatic Connections
1.6.1 Electrical Connections
Output #1 Carbon Monoxide concentration - Chart Recorder (REC)
Output #2 Carbon Monoxide concentration - Data Acquisition System (DAS)
Output #3 Test function analog output
Input #4 Zero valve request
Input #5 Span valve request
Input #6 Not Used
There are 2 six-pin connector strips on the rear panel shown in Figure 1-3. The pins are divided
into 3-plus/minus pairs and have the functions shown above.
Outputs 1 and 2 have identical signals and electrical characteristics. Output 3 is the same as 1
and 2 electrically, but has analog TEST function signals routed to it. See Diagnostics in Section
5 for details.
1.6.2 Remote Contact Closures Zero/Span Inputs
Remote contact closures can be used to remotely energize the zero/span valves to do a zero or
span check. The external contact closure should be capable of switching 12 VDC at 50 ma.
Refer to Figure 1-3 for connection location. See Sections 1.8.2 and 3.6 for further details.
NOTE
Zero or span checks can be performed in any order.
1.6.3 Status Outputs (Optional)
Status outputs report analyzer conditions via contact closures located on the optional DB-50
connector on the rear panel. The contacts are NPN transistors which can sink 50 mA of DC
current. The pin assignments are listed in Table 1-1.
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Teledyne API Model 300M CO Analyzer Instruction Manual, 04033, Rev. A
Table 1-1: Status Outputs
Output# Pin Pair
(Low, High) Definition Condition
1 1,2 ALARM 1 Gas concentration is exceeding the Hi set
limit.
2 3,4 ALARM 2 Gas concentration is exceeding the HiHi set
limit.
3 5,6 SYSTEM OK True if no alarm conditions exist
4 7,8 TEMP ALARM True if any temp warning exists
5 9, 10 DIAG MODE True if in diagnostic mode
6 11,12 POWER ON True if main power is on
7 13,14 PRESS ALARM True on low pressure
8 15,16 HIGH RANGE
SELECTED
True if the auto-range function has switched
the analyzer into high range.
9 17,18 FLOW ALARM True if a flow warning exists
10 19,20 RESERVED
11 21,22 SOURCE
WARNING
True if the analyzer source intensity is out
of limits.
12 23,24 RESERVED
1.6.4 RS-232
The RS-232 connection is a male, 9-pin D-sub connector at the location shown in Figure 1-3.
See also Appendix A for additional information.
1.6.5 Pneumatic System
The Model 300M is equipped with a vacuum pump capable of pulling 800 cc/min across a flow
restrictor. This allows a smooth, stable flow of sample through the analyzer.
Sample enters the analyzer through a particulate filter element (47 mm diameter) mounted
immediately behind the front panel. The sample then enters directly into the sample cell. Please
see Figure 1-1 for a flow diagram and Figure 1-4 for pneumatic connections.
1-12