Teledyne 265A User Manual

Teledyne API, Model 265A Chemiluminescence Ozone Analyzer Manual Addendum,
03389, Rev. B, DCN 5254

HIGHLIGHTS

The purpose of this Highlights Page is to list the changes that were incorporated into this Manual per
DCN 5254.

Chapter / Page Number Description

 Changed Revision number and date.

Title Page

Text – All Pages

TOC / ii, iii

1 / 1

 Changed address.

 Added DCN number to footer.

 Removed Revision letter referenced to instruction manual.

 Changed Revision number and date.

 Added DCN to all footers of Text, P/N 03389B.

 Added “PRINTED DOCUMENTS ARE UNCONTROLLED” to all

footers of Manual, P/N 03389B.

 Updated List of Figures in TOC.

 Removed Revision letter referenced to instruction manual.

 Changed Revision number and date. Updated Warranty Section:

Under Warranty, changed Revision Letter. Under General Section:

2 / 12

2 / 13

removed first paragraph and replaced with “During the warranty
period, T-API warrants each Product manufactured by T-API to be
free from defects in material and workmanship under normal use
and service. Expendable parts are excluded.”

 Table 2-2, changed the BOX TEMP from 8-48°C to 8-40°C.

 Table 2-2, changed the PMT TEMP from 7±2°C to 8±2°C.

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TELEDYNE

INSTRUMENTS

Advanced Pollution Instrumentation

A Teledyne Technolog i es Company

MANUAL ADDENDUM

MODEL 265A

CHEMILUMINESCENCE OZONE

ANALYZER

(ADDENDUM TO M200A INSTRUCTION MANUAL #02246)

TELEDYNE INSTRUMENTS

ADVANCED POLLUTION INSTRUMENTATION DIVISION

9480 CARROLL PARK DRIVE

SAN DIEGO, CA 92121-2251

TOLL-FREE: 800-324-5190

FAX: [phone]

TEL: [phone]

E-MAIL: [e-mail]

WEB SITE: www.teledyne-api.com

Copyright 1999-2001 API Inc.

03389 Rev B

DCN 5254

15 December 2008

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TAPI Model 265A Chemiluminescence Ozone Analyzer

Manual Addendum, Rev. B, DCN 5254

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
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.

Electrical Ground: This symbol inside the instrument marks the central safety
grounding point for the instrument.

: Refer to the instructions for details on the

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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TAPI Model 265A Chemiluminescence Ozone Analyzer

Manual Addendum, Rev. B, DCN 5254

TABLE OF CONTENTS

SAFETY MESSAGES.......................................................................................................I

TABLE OF CONTENTS..................................................................................................II

1 GETTING STARTED ................................................................................................1

1.0 Overview ........................................................................................................................................... 1

1.1 Unpacking .........................................................................................................................................1

1.2 Electrical and Pneumatic Connections..............................................................................................2

1.3 Initial Operation ................................................................................................................................7

1.4 Instrument Calibration ......................................................................................................................7

2 SPECIFICATIONS, WARRANTY.............................................................................11

2.1 Specifications .................................................................................................................................. 11

2.2 Warranty.......................................................................................................................................... 12

2.3 Test and Calibration Values ............................................................................................................ 13

3 THE M265A OZONE ANALYZER........................................................................15

3.1 Principle of Operation ..................................................................................................................... 15

4 SOFTWARE FEATURES........................................................................................19

5 MAINTENANCE..........................................................................................................23

5.1 Maintenance Schedule ................................................................................................................... 23

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LIST OF FIGURES

FIGURE 1-1: REMOVAL OF SHIPPING SCREWS & CHECK FOR CORRECT POWER ............ 3

FIGURE 1-2: M265A REAR PANEL .................................................................................................. 4

FIGURE 1-3: INLET AND EXHAUST VENTING RECOMMENDATIONS................................... 5

FIGURE 1-4: V/F BOARD SWITCH SETTINGS............................................................................... 6

FIGURE 3-1: BLOCK DIAGRAM .................................................................................................... 16

FIGURE 3-2: PNEUMATIC DIAGRAM........................................................................................... 17

FIGURE 4-1: SAMPLE MENU TREE .............................................................................................. 20

FIGURE 4-2: SETUP MENU TREE .................................................................................................. 21

LIST OF TABLES

TABLE 2.1: M265A SPECIFICATIONS.......................................................................................... 11

TABLE 2-2: FINAL TEST AND CALIBRATION VALUES........................................................... 13

TABLE 5-1: PREVENTATIVE MAINTENANCE SCHEDULE ..................................................... 23

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TAPI Model 265A Chemiluminescence Ozone Analyzer

Manual Addendum, Rev. B, DCN 5254

1 GETTING STARTED

1.0 Overview

The Model 265A is a close derivative of the Model 200A Chemiluminescence NOx Analyzer.
Because of this, the Model 200A Instruction manual continues to be valid as a reference
manual covering the details of the instrument’s components, procedures, etc. This manual
addendum is intended as supplement to the model 200A manual (Teledyne API part number

02246) and provides an overview of the instrument and the details of the features and
functions that are specific to the 265A.

1.1 Unpacking

CAUTION

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.

To avoid personal injury, always use two persons to

lift and carry the Model 265A.

1. Before operation it is necessary to remove the shipping hold-down screws. Remove the

instrument cover, then remove three screws (painted red) as shown in Figure 1-1.

Please remember if shipping or transporting the instrument to another site, the
shipping screws must be re-installed to prevent damage to the sensor.

2. Also check for internal shipping damage, and generally inspect the interior of the

instrument to make sure all circuit boards and other components are in good shape and
properly seated.

3. Please check the voltage and frequency label on the serial number tag on the rear panel.

Compare that to your local power before plugging the instrument into an outlet.

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1.2 Electrical and Pneumatic Connections

1. See Figure 1-2 and Figure 1-3 to locate the rear panel electrical and pneumatic

connections.

2. Attach the pump to the “Exhaust Out” port on the instrument rear panel. The exhaust from

the pump should be vented to atmospheric pressure and out of the room, because of its NO
content.

3. Attach the sample inlet line to the sample inlet port. The pressure of the sample gas at the

inlet port should be at ambient pressure and constant. See Figure 1-3.

4. Attach a cylinder with 10,000 ppm ±10% of nitric oxide (NO) in nitrogen (N2), with an

appropriate pressure regulator, to the 1/8” SS port on the rear panel as shown in Figure
1-2. The cylinder’s pressure regulator should be set to deliver gas at 20 PSIG ±10%.

5. Attach the analog output connections to a strip chart recorder and/or data-logger. See

Figure 1-2 for connector pin-out definitions. See Figure 1-4 for V/F board switch settings.
Factory default setting is 0-5 VDC.

6. Connect the power cord to the correct line voltage.

WARNING

Analyzer Exhaust Contains Nitric Oxide Gas.

Vent pump exhaust to a well-ventilated area at atmospheric

pressure.

WARNING

Lethal voltages present inside case.

Do not operate with cover off during normal operation.

Before operation, check for correct input voltage and

frequency.

Do not operate without proper chassis grounding.

Do not defeat the ground wire on power plug.
Turn off analyzer power before disconnecting

electrical subassemblies.

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Figure 1-1: Removal of Shipping Screws & Check for Correct Power

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Figure 1-2: M265A Rear Panel

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Figure 1-3: Inlet and Exhaust Venting Recommendations

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Figure 1-4: V/F Board Switch Settings

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Manual Addendum, Rev. B, DCN 5254

1.3 Initial Operation

1. Turn on the instrument power. The display should immediately light, showing the

computer’s memory configuration, then the instrument type - M265A. A diagram of the
software menu trees can be found in Figure 4-1 and Figure 4-2.

2. On power-up, an internal solenoid valve will open allowing NO to flow. Check the

NO FLOW test function on the front panel to verify that the flow is 5 cm
the flow is out of this range, check the inlet pressure at the rear panel and make sure that it
is 20 psi, then adjust the pressure regulator on the rear panel until the flow is within range.

3. The M265A requires about 30 minutes for all internal components to heat to operating

temperature. Many warning conditions are not displayed during this time, even though
some parameters are out of specification. All warning messages are enabled after 30
minutes of operation.

4. When the instrument is warmed up, check the TEST functions. All of the readings should

compare closely with those in Table 2-2.

5. Next is instrument calibration, which is shown in the following tables.

³/min ±20%. If

1.4 Instrument Calibration

Step 1 - Set the range, then enter the expected ozone span gas concentrations:

Step Number Action Comment

1. Press
CAL-CONC

2. Press ENTR ENTR stores the expected span value. The internal formula is

5. Press EXIT Returns instrument to SAMPLE mode.

6. Press
SETUP-RNGE­MODE-SNGL

7. Press
SETUP-RNGE­SET

This key sequence causes the M265A to prompt for the
expected span concentration. Enter the span value by pressing
the key under each digit until the expected value is set.

adjusted to compute this number when span gas concentration
is input into the instrument.

If necessary, you may want to change the range mode.
Choices are either Single or AutoRange. Normally the
instrument is shipped in Single range mode.

After the mode is set, you may want to set the maximum
range value. The instrument is shipped with the range set at
500 ppb. This setting affects only your analog outputs, not
the RS-232 output.

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Step 2 - Calibrate the instrument: Zero/Span Calibration Procedure

Step Number Action Comment

1. Input zero gas Allow zero gas to enter the sample port on the rear of the

instrument.

2. Press CAL The M265A enters the calibrate mode from sample mode.

3. Wait 10 min Wait for reading to stabilize at the zero value. If you wait less

than 10 minutes the final zero value may drift. You may want
to watch the STABIL test function (moving standard
deviation) for its minimum value.

4. Press ZERO The ZERO button will be displayed once the concentration

approaches zero.

5. Press ENTR Pressing ENTR zeroes the instrument and actually changes

both offset and slope of the equations to calculate
concentration.

6. Press EXIT, input
Span gas

7. Wait 10 min Wait for the O3 reading to stabilize at the span value (watch

8. Press SPAN The SPAN button should be displayed once the concentration

9. Press ENTR Pressing ENTR to span the instrument actually changes the

10. Press EXIT Pressing EXIT returns the instrument to SAMPLE mode.

M265A returns to the CAL menu. Now allow span gas to
flow through the instrument.

STABIL).

approaches the span value. In certain circumstances at low
span gas concentrations both the ZERO and SPAN buttons
will appear. Do not press ZERO again when running span
gas!

equations so that the concentration displayed is the same as
the expected span concentration you entered above, thus
spanning the instrument.

Step 3 - Review Quality of calibration: Calibration Quality Check Procedure

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Step Number Action Comment

1. Scroll the TEST
function menu until

SLOPE is

the O

3

displayed.

2. Scroll the TEST
function menu until

OFFS is

the O

3

displayed.

The SLOPE value for O
value is in the acceptable range the instrument will perform
optimally.

The M265A will display the OFFSET parameter for the O
equation. This number should be near zero. A value of 0.0
±50 indicates calibration in the optimal range.

Step 4 - The M265A is now ready to measure sample gas.

should be 1.0 ± 0.3. If the SLOPE

3

3

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2 SPECIFICATIONS, WARRANTY

2.1 Specifications

Table 2.1: M265A Specifications

Ranges In 1 ppb increments from 100 ppb to 20,000 ppb

Measurement Mode

Measurement Units ppb, µg/m3
Noise at zero
Noise at span <0.5% of reading RMS per USEPA definition above 100 ppb
Lower Detectable Limit <0.6 ppb per USEPA definition
Zero Drift (24 hours)
Span Drift (24 hours)
Linearity <1% of full scale
Precision 0.5% of reading
Lag Time

0.3 ppb per USEPA definition

1

<1.0 ppb

1

<1% of reading or 1 ppb, whichever is greater

Rise/Fall Time <20 sec

Sample Flow Rate
Reagent Gas
Reagent Flow
Temperature Range
Humidity Range 10-90% RH non-condensing
Temperature Coefficient
Voltage Coefficient < 0.1% per V
Dimensions H x W x D 7" x 17" x 23.6" (18 cm x 43 cm x 61 cm)
Weight, Analyzer 36 lbs (16 kg)
Weight, Pump Pack 16 lbs (7 kg)
Power, Analyzer 100 V~ 50/60 Hz, 120 V~ 60 Hz, 220 V~ 50 Hz, 240 V~ 50 Hz, 200 W
Power, Analyzer
Power, Ext Pump 110 V~ 60 Hz, 220 V~ 50 Hz, 240 V~ 50 Hz, 295 W
Power, Ext Pump
Environmental

2

230 V~ 50 Hz, 2.5A

2

230 V~ 50 Hz, 2.5A

2

Installation Category (Over-voltage Category) II
Pollution Degree 2
Analog Resolution 1 part in 2048 (11 bit) of selected voltage or current range
Analog Output Ranges 0-100 mV, 0-1, 5, 10 V, bipolar
Current Loop Option 4-20 mA, isolated
Status 12 status outputs from opto-isolators

Single range or AutoRange

per USEPA definition

10 sec

per USEPA definition

500 ± 50 cm³/min

NO at 10,000 ppm

±10% and 20 psi pressure
5 ± 1 cm³/min
5 – 40° C

< 0.1% per °C

1. At constant temperature and voltage.

2. Electrical ratings for CE Mark compliance.

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2.2 Warranty

ADVANCED POLLUTION INSTRUMENTATION DIVISION (T-API) (02024D) (DCN 4473)

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-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

During the warranty period, T-API warrants each Product manufactured by T-API to be free from defects in
material and workmanship under normal use and service. Expendable parts are excluded.

TAPI Model 265A Chemiluminescence Ozone Analyzer

Manual Addendum, Rev. B, DCN 5254

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.

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 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.

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2.3 Test and Calibration Values

Table 2-2: Final Test and Calibration Values

TEST Values

RANGE ppb 10-20000

NOISE ppb 0.0 – 7.0

SAMP FLW cm³/min 500 ± 50

NO FLOW cm³/min 5 ± 1

PMT mV 0-5000

AUTOZERO mV -10 to +50

HVPS V 400 – 850 constant

DCPS mV 2500 ± 200

RCELL TEMP °C 50 ± 2

BOX TEMP °C 8-40

PMT TEMP °C 8 ± 2

RCEL PRES IN-Hg-A 2 - 10 constant

SAMP PRES IN-Hg-A 20 - 30 constant

NO PRES PSIG 3 - 20 constant

Observed
Value

Units Nominal Range Reference Section

Electric Test &Optic Test

Electric Test

PMT Volts mV 2000 ± 200

O3 Conc ppb 1000 ± 100

OPTIC TEST

PMT Volts mV 2000 ± 200

O3 Conc ppb 1000 ± 100

(table continued)

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Table 2-2: Final Test and Calibration Values (Continued)

Parameter

O3 Span Conc ppb 0.5 - 5000

O3 Slope 1.0 ± 0.3

O3 Offset mV ± 25

Noise at Zero ppb 0.0 – 1.0

Noise At Span ppb 0.1 – 7.0

Sample Flow cm³/min 500 ± 50

Factory Installed Options Option Installed

Power Voltage/Frequency

Observed
Value

Units Nominal Range Reference Section

Measured Flows

PROM # Serial #

Date Technician

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TAPI Model 265A Chemiluminescence Ozone Analyzer

Manual Addendum, Rev. B, DCN 5254

3 THE M265A OZONE ANALYZER

3.1 Principle of Operation

The Teledyne API Model 265A analyzer is designed to measure the concentration of ozone
using the chemiluminescence reaction below. The signal comes from the light emitted by the
gas phase reaction of nitric oxide (NO) and ozone (O3) as follows:

*

ONOONO 

2

23

*
2

The reaction of ozone with NO results in electronically excited NO
the first equation. The excited NO

*

molecules release their excess energy by emitting a

2

hvNONO 

2

*

molecules as shown in

2

photon hν and dropping to a lower energy level as shown in the second equation. It has been

shown that the number of emitted photons is directly proportional to the O3 concentration in
the reaction cell.

Periodically, an AutoZero valve switches the sample stream to vacuum, allowing the reaction
cell to be evacuated and the analyzer to read zero background. The AutoZero readings are
subtracted from the concentration readings, which improves zero baseline stability.

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TAPI Model 265A Chemiluminescence Ozone Analyzer

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Manual Addendum, Rev. B, DCN 5254

Figure 3-1: Block Diagram

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Figure 3-2: Pneumatic Diagram

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4 SOFTWARE FEATURES

The M265A software has two major operating modes. The SAMPLE mode is the normal
mode when the instrument is taking data. The software menu that covers the SAMPLE mode
is shown in Figure 4-1.

en the instrument is initially installed, a change of parameters is needed, or diagnostics is

Wh
indicated, the SETUP menu is used, which is shown in Figure 4-2.

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Figure 4-1: Sample Menu Tree

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Figure 4-2: Setup Menu Tree

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5 MAINTENANCE

5.1 Maintenance Schedule

NOTE

The operations outlined in this chapter are to be

performed by qualified maintenance personnel only.

Table 5-1: Preventative Maintenance Schedule

Item Maintenance Interval Reference Section

TEST functions Review monthly See M200A manual, Table 8-1

Zero/Span calibration Annually or after repairs See M200A manual, Table 8-1

Zero/Span checks Daily See M200A manual, Table 8-1

Particulate filter Weekly as needed See M200A manual, Table 8-1

Reaction cell window Clean annually or as necessary See M200A manual, Table 8-1

Nitric oxide flow Check TEST function every

month

Sample Flow Check TEST function every

month

Pneumatic lines Examine every 12 months,

clean if necessary.

Factory calibration Calibrate each year or after

repairs

Leak Check Check every year or after other

maintenance.

Reaction cell O-rings Replace every 12 months See M200A manual, Table 8-1

Other O-rings Replace every 12 months See M200A manual, Table 8-1

Section 1-3
See also M200A manual, Table
8-1 (O

See M200A manual, Table 8-1

See M200A manual, Table 8-1

See M200A manual, Table 8-1

See M200A manual, Table 8-1

flows)

3

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