Teledyne 465L User Manual
OPERATION MANUAL
MODEL 465L
OZONE MONITOR
Teledyne Advanced Pollution Instrumentation (TAPI)
9480 Carroll Park Road
San Diego, CA 92121-5201
Phone: 800-324-5190 (toll free in North America)
858-657-9800 (direct)
FAX: 858-657-9816
EMAIL: api-sales@teledyne.com
WEB SITE: http://www.teledyne-api.com/
© 2007-2012 TAPI 05509F DCN6409
Teledyne Advanced Pollution Instrumentation 09 May 2012
ABOUT TELEDYNE ADVANCED POLLUTION INSTRUMENTATION (TAPI)
Teledyne Advanced Pollution Instrumentation, Inc. (TAPI) is a worldwide market leader
in the design and manufacture of precision analytical instrumentation used for air quality
monitoring, continuous emissions monitoring, and specialty process monitoring
applications. Founded in San Diego, California, in 1988, TAPI introduced a complete
line of Air Quality Monitoring (AQM) instrumentation, which comply with the United
States Environmental Protection Administration (EPA) and international requirements
for the measurement of criteria pollutants, including CO, SO2, NOX and Ozone.
Since 1988 TAPI has combined state-of-the-art technology, proven measuring
principles, stringent quality assurance systems and world class after-sales support to
deliver the best products and customer satisfaction in the business.
For further information on our company, our complete range of products, and the
applications that they serve , please visit www.teledyne-api.com or contact
sales@teledyne-api.com.
Notice of Copyright
© 2007-2012 Teledyne Advanced Pollution Instrumentation. Inc. All rights reserved.
Trademarks
All trademarks, registered trademarks, brand names or product names appearing in this
document are the property of their respective owners and are used herein for
identification purposes only.
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ii 05509F DCN6409
IMPORTANT SAFETY INFORMATION
Important safety messages are provided throughout this manual for the purpose of avoiding personal
injury or instrument damage. Please read these messages carefully. Each safety message is associated
with a safety alert symbol and placed throughout this manual and inside the instrument. The symbols with
messages are defined as follows:
WARNING: Electrical Shock Hazard
HAZARD: Strong oxidizer
GENERAL WARNING/CAUTION: Read the accompanying message
for specific information.
CAUTION: Hot Surface Warning
Do Not Touch: Touching some parts of the instrument without
protection or proper tools could result in damage to the part(s) and/or the
instrument.
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.
CAUTION
GENERAL SAFETY HAZARD
This instrument should only be used for the purpose and in the manner
described in this manual. If you use it in a manner other than that for
which it was intended, unpredictable behavior could ensue with possible
hazardous consequences.
NEVER use any gas analyzer to sample combustible gas(es).
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Teledyne API Model 465L O3 Monitor Operation Manual
CONSIGNES DE SÉCURITÉ
Des consignes de sécurité importantes sont fournies tout au long du présent manuel dans le but d’éviter
des blessures corporelles ou d’endommager les instruments. Veuillez lire attentivement ces consignes.
Chaque consigne de sécurité est représentée par un pictogramme d’alerte de sécurité; ces pictogrammes se
retrouvent dans ce manuel et à l’intérieur des instruments. Les symboles correspondent aux consignes
suivantes :
AVERTISSEMENT : Risque de choc électrique
DANGER : Oxydant puissant
AVERTISSEMENT GÉNÉRAL / MISE EN GARDE : Lire la consigne
complémentaire pour des renseignements spécifiques
MISE EN GARDE : Surface chaude
Ne pas toucher : Toucher à certaines parties de l’instrument sans
protection ou sans les outils appropriés pourrait entraîner des dommages
aux pièces ou à l’instrument.
Pictogramme « technicien » : Toutes les opérations portant ce symbole
doivent être effectuées uniquement par du personnel de maintenance
qualifié.
Mise à la terre : Ce symbole à l’intérieur de l’instrument détermine le
point central de la mise à la terre sécuritaire de l’instrument.
MISE EN GARDE
Cet instrument doit être utilisé aux fins décrites et de la manière décrite
dans ce manuel. Si vous utilisez cet instrument d’une autre manière que
celle pour laquelle il a été prévu, l’instrument pourrait se comporter de
façon imprévisible et entraîner des conséquences dangereuses.
NE JAMAIS utiliser un analyseur de gaz pour échantillonner des gaz
combustibles!
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Teledyne API Model 465L O3 Monitor Operation Manual
ABOUT THIS MANUAL
This manual is comprised of multiple documents as listed below.
Part
Number
05590 M465L Operation Manual (this manual)
05919 Rack Mount Spare Parts List (integrated into this manual as Section 12.1)
05910 NEMA Spare Parts List (integrated into this manual as Section 12.2)
Name/Description
NOTE
We recommend that this manual be read in its entirety before any attempt is made to operate the
instrument.
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REVISION HISTORY
M465L Operation Manual, PN05509
2012 May 09, Rev F, DCN 6409: technical and administrative updates
2011 August 2, Rev E, DCN 6198: technical and administrative updates
2009 October, Rev D, DCN 5522: technical and administrative updates
2009 October, Rev D, DCN 5522: technical and administrative updates
2009 June, Rev C, DCN 5456: administrative udpates
2009 February, Rev B, DCN 5371: administrative updates
2007, Rev A, Initial Release
vi 05509F DCN6409
TABLE OF CONTENTS
ABOUT THIS MANUAL.........................................................................................i
SAFETY MESSAGES...........................................................................................ii
ABOUT TELEDYNE ADVANCED POLLUTION INSTRUMENTATION (TAPI).....I
1. INTRODUCTION..........................................................................................13
1.1. PREFACE................................................................................................13
2. SPECIFICATIONS AND AGENCY APPROVALS.......................................15
2.1. S
2.2. A
2.2.1. Safety..............................................................................................................16
2.2.2. EMC...............................................................................................................16
2.2.3. Other Type Certifications..............................................................................17
3. PRINCIPLE OF OPERATION......................................................................19
4. GETTING STARTED ...................................................................................21
4.1. PNEUMATIC CONNECTIONS.......................................................................23
4.1.1. Sample Gas Connection.................................................................................24
4.1.2. Exhaust Connection.......................................................................................28
4.2. ELECTRICAL I/O CONNECTIONS................................................................29
4.2.1. Location of I/O Connectors in the NEMA Configuration..............................29
4.2.2. Analog Output................................................................................................29
4.2.3. Status Outputs................................................................................................29
4.2.4. Hi-Current Relay Outputs .............................................................................31
4.2.5. Multi-Stream Relay Outputs (Optional) ........................................................32
4.2.6. Digital Serial Interfaces ................................................................................33
PECIFICATIONS......................................................................................15
PPROVALS ............................................................................................16
5. FREQUENTLY ASKED QUESTIONS .........................................................35
6. OPTIONS.....................................................................................................37
6.1. S
TREAM SELECTOR (3 OR 6 STREAM).......................................................37
6.2. DISPOSABLE SAMPLE INLET FILTERS.........................................................37
6.3. RACK MOUNT SLIDES ..............................................................................37
6.4. ELECTRONIC FLOWMETER........................................................................37
6.5. S
AMPLE CONDITIONER.............................................................................37
6.6. PERMEATION GAS DRYER........................................................................37
7. OPERATION ................................................................................................39
7.1. F
RONT PANEL OVERVIEW.........................................................................39
7.1.1. Ozone Concentration Display .......................................................................39
7.1.2. Menu Navigation Keypad..............................................................................39
7.1.3. Stream Selector Status/Control (Optional)....................................................40
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7.1.4. Concentration Alarm Status/Reset.................................................................40
7.1.5. Status LEDs ...................................................................................................41
7.2. FRONT PANEL MENUS..............................................................................41
7.2.1. Menu Navigation Basics................................................................................41
7.2.2. Editing Numeric Values.................................................................................42
7.2.3. DIAG Menu....................................................................................................45
7.2.4. VIEW Menu....................................................................................................51
7.2.5. CONFIG Menu ..............................................................................................51
7.2.6. SETUP-VARS Menu.......................................................................................52
7.2.7. SETUP-STREAM Menu.................................................................................53
7.3. MULTI-STREAM OPERATION .....................................................................54
8. DIGITAL COMMUNICATIONS....................................................................55
8.1. D
8.2. C
IGITAL COMMUNICATIONS OVERVIEW......................................................55
HANGING COM PORT HARDWARE CONFIGURATION ..................................55
8.3. RS-232 CONFIGURATION.........................................................................57
8.4. RS-485 CONFIGURATION.........................................................................58
8.5. ETHERNET CONFIGURATION.....................................................................59
8.5.1. Hardware Setup for Configuring the Ethernet Module.................................59
8.5.2. Verifying Network Hardware Connection.....................................................59
8.5.3. Determining a Dynamically Assigned IP Address (DHCP Mode)................60
8.5.4. Manually Assigning a Static IP Address .......................................................60
8.6. MODBUS REGISTER MAPS.....................................................................61
8.6.1. MODBUS Commands Supported ..................................................................61
8.6.2. Notes on MODBUS registers.........................................................................61
8.6.3. Real-Time Concentration and Status Registers (Read Only)........................62
8.6.4. Instrument Setup and Configuration Registers (Read / Write)......................63
9. MAINTENANCE AND ADJUSTMENTS......................................................66
9.1. MAINTENANCE SCHEDULE........................................................................66
9.2. I
NSTRUMENT LAYOUT...............................................................................67
9.3. REPLACING INTERNAL PARTICULATE FILTER ..............................................68
9.4. UV LAMP ADJUSTMENT............................................................................69
9.5. UV
9.6. S
LAMP REPLACEMENT..........................................................................70
AMPLE PUMP REPLACEMENT..................................................................70
9.7. SENSOR VALVE REPLACEMENT.................................................................72
9.8. WATER DROP-OUT FILTER (OPTION) MAINTENANCE .................................73
9.9. CONFIGURING THE ANALOG OUTPUT.........................................................73
9.10. C
LEANING EXTERIOR SURFACES OF THE M465L....................................74
9.11. BOOT LOADER OPERATION...................................................................74
9.11.1. Boot Loader – Hardware Setup ..................................................................75
9.11.2. Boot Loader – Software Setup.....................................................................75
10. TROUBLESHOOTING.............................................................................78
10.1. R
EFERENCE DRAWINGS .......................................................................78
10.1.1. Pneumatic Diagram....................................................................................78
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10.1.2. Interconnect Diagram.................................................................................79
10.2. TROUBLESHOOTING USING FRONT PANEL STATUS LED’S OR STATUS OUTPUTS
80
10.2.1. Sensor OK ...................................................................................................81
10.2.2. Invalid Reading...........................................................................................81
10.2.3. Check Lamp.................................................................................................81
10.2.4. Pneumatic Error..........................................................................................81
11. CALIBRATION.........................................................................................84
11.1. FACTORY CALIBRATION ........................................................................ 84
11.2. ZERO CALIBRATION..............................................................................84
12. SPARE PARTS........................................................................................86
12.1. M465L
RACK MOUNT SPARE PARTS LIST..............................................86
12.2. M465L NEMA SPARE PARTS LIST........................................................87
FIGURES
Figure 4-1: NEMA AC Power Connection to Monitor ....................................22
Figure 4-2: Pneumatic Connections, Rack Mount Configuration.................23
Figure 4-3: Pneumatic Connections, NEMA Configuration, Single Stream 23
Figure 4-4: Pneumatic Connections, NEMA Configuration, Multi-Stream...24
Figure 4-5. M465L Pneumatic Diagram with Sample Conditioner and Permeation
Gas Dryer Options (in single-stream configuration).......................26
Figure 4-6: Rear Panel Electrical I/O Connections........................................28
Figure 4-7: NEMA Electrical I/O Connections................................................28
Figure 4-8: Status Output Schematic .............................................................30
Figure 7-1: Front Panel Display.......................................................................39
Figure 7-2: Front Panel Menu Diagram (Page 1)............................................43
Figure 7-3: Front Panel Menu Diagram (Page 2)............................................44
Figure 7-4: Span Cal Menu.............................................................................. 49
Figure 7-5: Flow Cal Menu...............................................................................50
Figure 8-1: Com Configuration Jumper Settings (SW2) ...............................56
Figure 9-1: Instrument Layout, Rack Mount Configuration.......................... 67
Figure 9-2: Instrument Layout, NEMA Configuration....................................68
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Figure 9-3: Sensor Detail................................................................................. 72
Figure 9-4: Mainboard – Analog Output Configuration.................................74
Figure 10-1: Pneumatic Diagram, 3 Stream Configuration...........................78
Figure 10-2: Interconnect Diagram.................................................................79
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TABLES
Table 4-1: Status Output Definitions ..............................................................30
Table 4-2: Relay Functions for Single Stream Config...................................31
Table 4-3: Relay Functions for Multi-Stream Configs...................................31
Table 4-4: Multi-Stream Relays.......................................................................32
Table 7-1: Alarm LED’s.....................................................................................40
Table 7-2: Status LED’s ...................................................................................41
Table 7-3: Analog Step Test Values................................................................45
Table 7-4: Signal I/O List..................................................................................46
Table 7-5: VIEW Menu Parameters..................................................................51
Table 7-6: CONFIG Menu Parameters .............................................................51
Table 7-7: VARS List........................................................................................52
Table 7-8: STREAM Properties........................................................................53
Table 8-1: RS-232 Connector Details..............................................................57
Table 8-2: RS-232 Port Setup ..........................................................................57
Table 8-3: RS-485 Connector Details..............................................................58
Table 8-4: RS-485 Port Setup ..........................................................................58
Table 8-5: Ethernet LED Definitions ...............................................................59
Table 8-6: Supported MODBUS Commands ..................................................61
Table 9-1: Maintenance Schedule...................................................................66
Table 10-1: Status LED/Output Definitions....................................................80
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1. INTRODUCTION
1.1. Preface
The Teledyne API Model 465L is a UV photometric ozone monitor designed and manufactured
for single/multi-channel industrial hygiene ozone analysis. It is a very stable analyzer, ideal for
critical low-level PPM safety and process applications. Whether you have selected the rack
mount or wall mount unit in NEMA 4X enclosure, the M465L is designed to be highly reliable
and simple to operate with easy setup and user-friendly menu driven software that can also be set
and monitored remotely.
As the M465L was designed for stability, reliability and simplicity, it includes built-in tests and
diagnostics to facilitate maximum uptime. In addition to a full one year warranty (see Section
1.2), Teledyne API is pleased to provide you with any support required so that you may utilize
our equipment to the fullest extent. Our full time customer service department is available to
answer your questions.
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2. SPECIFICATIONS AND AGENCY
APPROVALS
2.1. Specifications
User selectable to any full scale range from:
1 PPM to 500 PPM
Ranges
Measurement Units
Zero Noise < .0015 PPM (rms)
Span Noise < .5% of reading (rms) (above 0.1 PPM)
1000 PPB to 10,000 PPB
2000 µg/m3 to 10,000 µg/m
100 PPHM to 10,000 PPHM (optional
configuration)
PPM, PPB, µg/m3, PPHM (optional
configuration)
3
Lower Detectable Limit < .003 PPM (rms)
Accuracy +/- 1% of full scale range
<30 sec
Response Time (95%)
Sample Flow Rate 0.8 L/min
Temperature Range 5-45o C
Humidity Range 10-90% RH, Non-Condensing
Dimensions (H x W x D)
Weight
Power 100-240 VAC, 47-63 Hz, 74W max
Environmental Conditions
(<60 sec with the Sample Conditioner option)
5.22” x 19.0" x 15.3" (133 mm x 483 mm x 388
mm) – Rack Mount Version
16.01” x 15.6” x 6.90” (407mm x 396mm x
175mm) – with NEMA 4X enclosure
12.6 lb. (5.73 kg) - Rack Mount Version
15.2 lb. (6.91 kg) – with NEMA 4X enclosure
Installation Category (Overvoltage Category) II
Pollution Degree 2
Maximum Operating Altitude 2000 meters
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Teledyne API Model 465L O3 Monitor Operation Manual
Analog Output, Voltage Mode 0 - 5V
Isolated Analog Output, 4-
20mA Mode
System OK Status Relay SPDT (Form C) Dry Contact, 250 VAC, 5A
Global Alarm Relays
Instrument Status Outputs
Multi-Stream Specifications:
Minimum Stream Duration
(Cycle Time) 1.0 min
Stream Alarm Relays (HI and
HI-HI)
Stream ID Relays
Maximum voltage between outputs and ground
60V peak
SPDT (Form C) Dry Contact, 250 VAC, 5A (x2,
HI and HI-HI)
6 - SPST Dry Contact, 50VDC, 250mA Resistive
Load
SPST Dry Contact, 50VDC, 250mA Resistive
Load (2 per stream)
SPST Dry Contact, 50VDC, 250mA Resistive
Load (1 per stream)
2.2. Approvals
This section presents Safety and Electromagnetic Compatibility (EMC) compliance approvals
for the Model 465L monitor.
2.2.1. Safety
IEC 61010-1:2001, Safety requirements for electrical equipment for
measurement, control, and laboratory use.
CE: 2006/95/EC, Low-Voltage Directive
North American:
cNEMKO (Canada): CAN/CSA-C22.2 No. 61010-1-04
NEMKO-CCL (US): UL No. 61010-1 (2nd Edition)
2.2.2. EMC
EN 61326-1 (IEC 61326-1), Class A Emissions/Industrial Immunity
EN 55011 (CISPR 11), Group 1, Class A Emissions
FCC 47 CFR Part 15B, Class A Emissions
CE: 2004/108/EC, Electromagnetic Compatibility Directive
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Teledyne API Model 465L O3 Monitor Operation Manual
2.2.3. Other Type Certifications
For additional certifications, please contact Customer Service:
Toll-free
Phone:
Phone:
Fax:
Email:
800-324-5190
858-657-9800
858-657-9816
api-customerservice@teledyne.com
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3. PRINCIPLE OF OPERATION
The detection of ozone molecules is based on absorption of 254 nm UV light due to an internal
electronic resonance of the O3 molecule. The Model 465 uses a mercury lamp constructed so
that a large majority of the light emitted is at the 254nm wavelength. Light from the lamp shines
down a hollow quartz tube that is alternately filled with sample gas, then filled with gas scrubbed
to remove ozone. The ratio of the intensity of light passing through the scrubbed gas to that of
the sample forms a ratio I/Io. This ratio forms the basis for the calculation of the ozone
concentration.
The Beer-Lambert equation, shown below, calculates the concentration of ozone from the ratio
of light intensities.
Where:
C
9
10
ln
O
3
273
o
92.29
inHg
o
I = Intensity of light passed through the sample
Io = Intensity of light through sample free of ozone
= absorption coefficient
= path length
C = concentration of ozone in ppb
O
3
T = sample temperature in degrees Kelvin
P = pressure in inches of mercury
As can be seen the concentration of ozone depends on more than the intensity ratio. Temperature
and pressure influence the density of the sample. The density changes the number of ozone
molecules in the absorption tube which impacts the amount of light removed from the light
beam. These effects are addressed by directly measuring temperature and pressure and including
their actual values in the calculation. The absorption coefficient is a number that reflects the
inherent ability of ozone to absorb 254 nm light. Most current measurements place this value at
308 cm-1 atm-1 at STP. The value of this number reflects the fact that ozone is a very efficient
absorber of UV radiation which is why stratospheric ozone protects the life forms lower in the
atmosphere from the harmful effects from solar UV radiation. Lastly, the absorption path length
determines how many molecules are present in the column of gas in the absorption tube.
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Teledyne API Model 465L O3 Monitor Operation Manual
The intensity of light is converted into a voltage by a high resolution A/D (analog-to-digital)
converter. The digitized signal and other variables are used by the CPU to compute the
concentration using the above formula.
About every 2.5 seconds the M465 completes a measurement cycle consisting of a 1 second wait
period for the sample tube to flush, followed by a 150 ms measurement of the UV light intensity
to obtain I. The sample valve is switched to admit scrubbed sample gas for 1 second, followed by
a 150 ms measurement of the UV light intensity to obtain Io. Measurement of the Io every 2.5
seconds eliminates instrument drift due to changing intensity of the lamp caused by aging and
dirt.
20 05509F DCN6409
4. GETTING STARTED
The Model 465 is shipped with the following standard equipment:
Power cord (Rack mount version only)
Instruction manual.
Upon receiving the Model 465 please do the following:
1. Verify that there is no apparent shipping damage. (If damage has occurred please advise
shipper first, then Teledyne API.)
2. When installing the Model 465, allow a minimum of 4 inches for clearance at the back of
the instrument (rack mount only) and 1 inch of clearance on each side for proper
ventilation.
3. Connect sample inlet line(s) to the sample port on rear panel or bottom panel of
instrument. See Figure 4-2 or Figure 4-3 for rear panel pneumatic connections.
CAUTION
Connect the exhaust fitting on the rear panel (See Figure 4-2) to a suitable
vent outside the monitor area.
4. Ensure that there are no communication devices connected until after start-up is
complete.
5. For the NEMA configuration, the electrical connection must be hard-wired to the 3-pin
connector on the mainboard labeled J23. AC power connection to the monitor should be
made with 12-14 AWG stranded copper wire, connected to the monitor as follows:
NOTE
Sample tubing made from an inert material such as Teflon should
be used to minimize sample degradation.
Earth Ground (green): Connect the earth ground wire to the screw terminal lug on the
chassis as shown in the Figure below. Do not connect the earth
ground wire directly to the PCB connector on the mainboard PCB.
Line (Black): Connect the Line wire to the connector on the mainboard PCB
labeled “Line”.
Neutral (White): Connect the Neutral wire to the connector on the mainboard PCB
labeled “Neutral”.
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Teledyne API Model 465L O3 Monitor Operation Manual
Figure 4-1: NEMA AC Power Connection to Monitor
6. Connect the power cord to an appropriate power outlet (see the serial number tag for
correct voltage and frequency).
CAUTION
Verify that the instrument is set up for proper line voltage and
frequency. Observe local electrical codes when connecting power to the
monitor.
7. Turn on the M465L by switching the switch on the left side of the rear panel, or applying
power to the monitor (NEMA configuration.) The front panel display should light with a
sequence of messages, including the instrument serial number and software revision.
(When the instrument first powers up, the display will show ‘xxxx’, indicating that the
instrument is in start-up mode, waiting for the UV detector readings to stabilize)..
8. After the start-up period, the instrument will begin displaying the ozone concentration
and the optional stream selector will begin operating, if installed.
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4.1. Pneumatic Connections
Figure 4-2: Pneumatic Connections, Rack Mount Configuration
Figure 4-3: Pneumatic Connections, NEMA Configuration, Single Stream
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Teledyne API Model 465L O3 Monitor Operation Manual
Figure 4-4: Pneumatic Connections, NEMA Configuration, Multi-Stream
4.1.1. Sample Gas Connection
Sample gas connections are made to the ¼” tube fittings on the rear panel. For single stream
monitors, use the fitting labeled “Sample Inlet.” For multi-stream monitors, the sample tubing is
connected to the fittings labeled Stream 1, Stream 2, etc (See Figure 4-2, Figure 4-3, Figure 4-4)
1/4" O.D. FEP (Teflon) tubing is recommended to connect the sample source to the monitor.
Any fittings used in the sample lines should be constructed of stainless steel or Teflon.
Teledyne API recommends that the length of tubing connecting the sample points to the monitor
should be kept to 50 feet or less.
NOTE
For the sampling lines, use only ¼” O.D. FEP tubing. For best analytical performance, the
tubing should be pre-conditioned to ozone prior to installation to minimize ozone loss in the
sampling lines. Pre-conditioned ¼” FEP tubing is available from Teledyne API (Part number
02639)
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Teledyne API Model 465L O3 Monitor Operation Manual
4.1.1.1. Sample Filtration
The most important factor in maintaining an accurate and stable monitoring system for ozone is
the cleanliness of entire pneumatic system leading up to (and including) the sensor assembly
inside the instrument. Provision must be made for keeping dust and other particulate matter out
of the monitor and upstream sample delivery tubing. The monitor is equipped with an internal
particulate filter down-stream of the selector manifold.
In addition, it is recommended that inlet filters be installed at the inlet of each sample line.
These filters should be constructed of PTFE or other inert material to avoid degradation of the
ozone concentration. Appropriate disposable inlet filters can be purchased from TAPI. See the
Spare Parts list in Appendix A of this manual for ordering information.
4.1.1.2. Sample System Design in Humid Environments
Care must be taken in the design of the sampling system to ensure that water vapor does not
condense in the sampling lines or in the instrument itself. The sample lines should be routed to
avoid large temperature gradients along the lines. If sample is brought in from a hot, humid area
into a much cooler area, then low power heating tape should be wrapped around the lines to keep
the temperature of the sample lines up and avoid condensation. The lines should also not have
loops or low points where water could collect.
For applications that require sampling of very humid gas, a Sample Conditioner and/or a
Permeation Gas Dryer may be required to lower sample gas humidity. A pneumatic block
diagram with the locations of these M465L options is shown in Figure 4-5, followed by a
description of each. Please contact the Teledyne API Sales Department for additional
information.
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Teledyne API Model 465L O3 Monitor Instruction Manual
Figure 4-5. M465L Pneumatic Diagram with Sample Conditioner and Permeation Gas Dryer Options (in single-
stream configuration)
26 05509F DCN6409
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