Toll-free Phone:
800-324-5190
Phone:
858-657-9800
Fax:
858-657-9816
Email:
api-sales@teledyne.com
Website:
http://www.teledyne-api.com/
Copyright 2014
07773A DCN6833
Teledyne Advanced Pollution Instrumentation
27 January 2014
07773A DCN6933
A-3
OPERATION MANUAL
MODEL 751H
HIGH PERFORMANCE
ZERO AIR GENERATOR
© TELEDYNE ADVANCED POLLUTION INSTRUMENTATION
9480 CARROLL PARK DRIVE
SAN DIEGO, CA 92121-5201
USA
Part No.
Rev
Name/Description
07773
A
Model 751H Manual (this manual)
07839
A
Model 751H Spare Parts List (Appendix A of this manual)
078370100
A
Model 751H Interconnect List (Appendix B of this manual)
07837
A
Model 751H Interconnect Diagram (Appendix B of this manual)
Date
Rev
DCN
Description
27 Jan 2014
A
6833
Initial Release
ABOUT THIS MANUAL
This Model 751H High Performance Zero Air Generator operation manual is comprised of
multiple documents as listed below.
Please read this manual in its entirety before making any attempt to operate the instrument.
NOTE
REVISION HISTORY
Model 751H User Manual, PN 07773
07773A DCN6833
i
ii 07773A DCN6833
CAUTION
This instrument should only be used for the purpose and in the manner described in
this manual. If you use this instrument 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)!
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.
SAFETY MESSAGES
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 are placed throughout this manual and inside the instrument. The symbols
with messages are defined as follows:
Note
For Technical Assistance regarding the use and maintenance of this instrument or any
other Teledyne API product, contact Teledyne API’s Technical Support Department:
Telephone: 800-324-5190
Email: sda_techsupport@teledyne.com
or access any of the service options on our website at http://www.teledyne-api.com/
07773A DCN6833 iii
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!
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 :
iv 07773A DCN6833
CAUTION – Avoid Warranty Invalidation
Failure to comply with proper anti-Electro-Static Discharge (ESD) handling and
packing instructions and Return Merchandise Authorization (RMA) procedures when
returning parts for repair or calibration may void your warranty. For anti-ESD
handling and packing instructions please refer to the manual, Fundamentals of ESD,
PN 04786, in its “Packing Components for Return to Teledyne API’s Customer
Service” section. The manual can be downloaded from our website at
http://www.teledyne-api.com under Help Center > Product Manuals in the Special
Manuals section. RMA procedures are under Help Center > Return Authorization.
WARRANTY
WARRANTY POLICY (02024G)
Teledyne Advanced Pollution Instrumentation (TAPI), a business unit of Teledyne
Instruments, Inc., provides that:
Prior to shipment, TAPI equipment is thoroughly inspected and tested. Should equipment
failure occur, TAPI assures its customers that prompt service and support will be available.
COVERAGE
After the warranty period and throughout the equipment lifetime, TAPI 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 are to be
performed by the customer.
NON-TAPI MANUFACTURED EQUIPMENT
Equipment provided but not manufactured by TAPI is warranted and will be repaired to the
extent and according to the current terms and conditions of the respective equipment
manufacturer’s warranty.
Product Return
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.
The complete Terms and Conditions of Sale can be reviewed at http://www.teledyneapi.com/terms_and_conditions.asp
07773A DCN6833 v
TABLE OF CONTENTS
ABOUT THIS MANUAL ........................................................................................................... I
REVISION HISTORY ............................................................................................................... I
SAFETY MESSAGES ............................................................................................................. III
1 INTRODUCTION ....................................................................................... 9
1.1 PREFACE ................................................................................................................... 9
1.2 751H FEATURES ........................................................................................................ 9
2 SPECIFICATIONS AND APPROVALS ................................................... 11
2.1 SPECIFICATIONS....................................................................................................... 11
2.2 APPROVALS AND CERTIFICATIONS ............................................................................. 12
2.2.1 Safety .............................................................................................................. 12
2.2.2 EMC ................................................................................................................. 12
3 GETTING STARTED .............................................................................. 13
3.1 UNPACKING ............................................................................................................. 13
3.2 INSTALLATION .......................................................................................................... 13
3.3 INSTRUMENT PANEL ................................................................................................. 14
3.4 ELECTRICAL AND PNEUMATIC CONNECTIONS .............................................................. 15
3.4.1 ELECTRICAL................................................................................................... 15
3.4.2 PNEUMATICS ................................................................................................. 15
3.5 POWER-UP .............................................................................................................. 16
3.6 STORAGE AND TRANSPORTATION .............................................................................. 16
3.7 EXPENDABLE KITS (OPT 42A) .................................................................................. 17
3.8 FLOW RESTRICTOR (OPT 72B) ................................................................................ 17
4 OPERATION ........................................................................................... 19
4.1 OVERVIEW ............................................................................................................... 19
4.2.1 Intake Filter ...................................................................................................... 22
4.2.2 Compressor ..................................................................................................... 22
4.2.3 Cooling Coil ..................................................................................................... 22
4.2.4 Water Trap ....................................................................................................... 22
4.2.5 Water Drain Valve ........................................................................................... 22
4.2.6 Pressure Relief Valve ...................................................................................... 23
4.2.7 Regenerative Dryer .......................................................................................... 23
4.2.8 Pressure Sensor .............................................................................................. 23
4.2.9 Pressure Regulator .......................................................................................... 24
vi 07773A DCN6833
4.2.10 Hydrocarbon (HC) Scrubber ......................................................................... 24
4.2.11 NO-NO2 Scrubber ......................................................................................... 25
4.2.12 Charcoal Scrubber ........................................................................................ 25
4.2.13 Carbon Monoxide (CO) Scrubber ................................................................. 25
4.2.14 Final Filter ..................................................................................................... 25
4.2.15 Pressure Gauge............................................................................................ 25
4.2.16 Controller ...................................................................................................... 25
4.2.17 Dewpoint Sensor .......................................................................................... 27
4.2.18 Instrument Panel Indicator Lights ................................................................. 27
5 MAINTENANCE ...................................................................................... 29
5.1 SCHEDULE ............................................................................................................... 29
5.2 MAINTENANCE MODE................................................................................................ 30
5.3 CLEANING ................................................................................................................ 30
5.4 CHECKING TUBING ................................................................................................... 30
5.5 REPLACING THE CHARCOAL SCRUBBER MEDIA ........................................................... 31
5.6 REPLACING THE NO - NO
5.7 REPLACING THE CO SCRUBBER ................................................................................ 32
5.8 REPLACING THE HYDROCARBON (HC) SCRUBBER ...................................................... 33
5.9 SERVICING THE REGENERATIVE DRYER ..................................................................... 34
5.10 CHANGING THE REGENERATIVE DRYER’S 4-WAY VALVE .......................................... 37
5.11 LEAK CHECK ......................................................................................................... 37
5.12 FILTER ELEMENT REPLACEMENT ............................................................................ 38
5.12.1 Intake Filter ................................................................................................... 38
5.12.2 Final Filter ..................................................................................................... 38
SCRUBBER MEDIA ............................................................ 32
2
6 TROUBLESHOOTING ............................................................................ 41
APPENDIX A - SPARE PARTS .......................................................................................... A-1
APPENDIX B - SCHEMATICS ........................................................................................... B-1
LIST OF FIGURES
FIGURE 3-1: 751H STARTUP CONNECTIONS .......................................................................................... 14
FIGURE 4-1: PNEUMATIC DIAGRAM ......................................................................................................... 20
FIGURE 4-2: PLAN VIEW .......................................................................................................................... 21
FIGURE 4-3: INSTRUMENT PANEL ............................................................................................................ 21
FIGURE 4-4: CONTROL BOARD LAYOUT .................................................................................................. 26
FIGURE 5-1: REGENERATIVE DRYER ....................................................................................................... 36
07773A DCN6833 vii
LIST OF TABLES
TABLE 2-1: SPECIFICATIONS ................................................................................................................... 11
TABLE 4-1: POWER AND DEWPOINT CONDITION INDICATORS ................................................................ 27
TABLE 5-1: MAINTENANCE SCHEDULE .......................................................................................... 29
TABLE 6-1: TROUBLESHOOTING .............................................................................................................. 41
viii 07773A DCN6833
1 INTRODUCTION
1.1 Preface
The 751H is an excellent source of clean, dry air for dilution calibrators. It also may be
used as a source of purge air for permeation tube ovens, zero air for ozone generators,
or combustion air for FID analyzers. The 751H has an oil-free and diaphragm-free
pump that pushes air through a pre-cooler and water trap that removes moisture, and
passes the air through a regenerative, heatless dryer for final drying. The pump then
routes the dry air through multiple scrubbers that remove SO2, NO, NO2, O3, H2S, CO,
and Hydrocarbons; the outlet air passes through a final filter to assure a clean, dry,
analytical zero air supply.
The regenerative dryer removes water and produces gas with a dewpoint of less than
-20°C (up to 10 SLPM flow rate) independent of the inlet dewpoint, and assists in the
removal of other gases, greatly increasing the life of the chemical scrubbers. The 751H
is an ideal accessory to the Model T700 Mass Flow Calibrator or Model 702 Single
Point Calibrator as a zero air source for analyzers.
1.2 751H Features
Regenerative, heatless dryer for maintenance-free water removal independent of
inlet dewpoint
Long life scrubbers for SO2, NO, NO2, O3, H2S, CO, and Hydrocarbons
Automatic water drain
May be used to provide combustion air for FID
Source of purge air for permeation tube ovens
Source of zero air for Ozone Generators
07773A DCN6833
9
Introduction Teledyne API M751H High Performance Zero Air Generator
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10 07773A DCN6833
Parameter
Specification
Output
10 SLPM at 30 psig
Max delivery pressure
30 psig
Dewpoint
< -20 C
Dryer
Regenerative heatless dryer with lifetime of greater than 5 years
Output Concentration
SO2 <0.025 ppb
NO <0.025 ppb
NO2 <0.025 ppb
O3 <0.3 ppb
CO < 10 ppb
HC < 0.25 ppb
Compressor
Single-cylinder, internal long-life, oil-less piston pump
Dimensions
9” x 22” x 13.8” (229 x 559 x 351 mm)
Weight
47 lbs (21.3 kg)
Operating Temp
5-40 C
Power
Typical Power Consumption
110-120 V~ 60 Hz, 4.0 A
220-240 V~ 50 Hz, 3.0 A
320 W
425 W
Environmental Conditions
Installation Category (Over Voltage Category ) II Pollution Degree 2
Intended for Indoor Use Only at Altitudes 2000m
Mains Supply Voltage Fluctuations not to exceed ± 10% of the
nominal voltage.
Transient Over Voltages according to Over Voltage Category II
2 SPECIFICATIONS AND APPROVALS
2.1 Specifications
Table 2-1: Specifications
07773A DCN6833
11
Specifications and Approvals Teledyne API M751H High Performance Zero Air Generator
2.2 Approvals and Certifications
The Teledyne-API Model 751H Zero Air Generator was designed, tested and certified for Safety
and Electromagnetic Compatibility (EMC). This section presents the compliance statements for
those requirements and directives. For additional certifications, please contract Technical
Support at 1-800-324-5190 or sda_techsupport@teledyne.com.
2.2.1 Safety
IEC/EN 61010-1:2010 (3rd Edition), Safety requirements for electrical equipment for
measurement, control and laboratory use.
CE: 2006/95/EC, Low-Voltage Directive
2.2.2 EMC
IEC/EN 61326-1, Class A Emissions/Industrial Immunity
EN55011 (CISPR 11), Group 1, Class A Emissions
FCC 47 CFR Part 15B, Class A Emissions
CE: 2004/108/EC, Electromagnetic Compatibility Directive
12 07773A DCN6833
CAUTION
TO AVOID PERSONAL INJURY, ALWAYS USE TWO PERSONS TO
LIFT AND CARRY THE 751H.
CAUTION
TO AVOID PERSONAL INJURY OR DAMAGE TO THE INSTRUMENT,
ALWAYS OPERATE THE 751H WITH THE LID OPEN.
3 GETTING STARTED
This section provides instructions on the proper installation and power up of the
751H. Refer to Figure 4-2 for the instrument layout and Table 2-1 for the
specifications.
NOTE
Due to mounting screws through its case, the 751H is not considered waterproof.
3.1 Unpacking
1. Remove the 751H from its shipping carton.
2. Verify that there is no shipping damage. If there are signs of damage, immediately
advise the shipper, then Teledyne API.
3. Open the lid and check for damage inside.
4. Check the line voltage and frequency label on the instrument to ensure that it
matches the local power source.
3.2 Installation
The basic 751H is a portable, self-contained instrument; there are no installation
instructions other than to ensure adequate support for its weight. However, the
connections must be made to the instrument panel and drain port with the lid open
(see Section 3.4 for connection instructions).
07773A DCN6833
13
Getting Started Teledyne API M751H High Performance Zero Air Generator
3.3 Instrument Panel
Figure 3-1 shows the components in the Model 751H instrument layout that are
pertinent to starting up the instrument.
Figure 3-1: 751H Startup Connections
14 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator Getting Started
CAUTION
ENSURE THAT THE POWER CORD IS PROPERLY GROUNDED
AND ADEQUATELY RATED FOR THE SPECIFIED POWER
RATING OF THIS INSTRUMENT (SEE SPECIFICATIONS TABLE).
3.4 Electrical and Pneumatic Connections
3.4.1 ELECTRICAL
NOTE
To maintain compliance with EMC standards, it is required that the power cord
length be no greater than 3 meters.
With the power switch in the “OFF” position, connect the power cord from the AC
input connection to the proper power source.
3.4.2 PNEUMATICS
Make the following pneumatic connections:
DRAIN (1/4” swage-type bulkhead union) - Connect 1/4” diameter tubing to the water-
out fitting (refer to Figure 4-2) to avoid the occasional spurts of water ejecting from
the fitting. Ensure the tubing is long enough that the water ejects outside the
instrument.
ZERO AIR OUT (1/4” swage-type bulkhead union) - Connect the AIR OUT port of the
751H to the INLET fitting of the Model 700 Calibrator with clean 1/4” TFE tubing.
Keep this line as short as possible to minimize pressure drops. . The pressure in this
line is adjustable, but should normally be 30 ± 5 psig.
07773A DCN6833 15
Getting Started Teledyne API M751H High Performance Zero Air Generator
NOTE
If the 751H has been unused for several days, it may take 30-60 minutes for
the DEWPOINT LED to light green. However, for ultra-low-level calibrations,
running the instrument for several hours could be beneficial for achieving
stability and thoroughly scrubbing contaminants.
3.5 Power-Up
COOLING FAN Requirements
The instrument panel cooling fan draws air IN and requires at least 6” (150 mm) of
clearance for proper operation.
NOTE:
DO NOT BLOCK THE COOLING FAN; ALWAYS KEEP LID OPEN WHEN
INSTRUMENT IS RUNNING.
1. Turn on the instrument panel POWER SWITCH (Figure 3-1).
2. The instrument panel POWER LED should come on.
3. The cooling fan should start immediately.
4. The compressor should start after a few seconds delay. The delay is to allow the
control board to measure the local line frequency.
5. After 30 to 60 seconds, the instrument panel pressure gauge should read 30
psig.
6. When the DEWPOINT LED is lit green, it indicates that the 751H is producing
clean dry air.
3.6 Storage and Transportation
If the 751H will not be used for an extended period of time or will be transported, the
following procedure applies:
1. Turn off the 751H.
2. Wait approximately 1 minute.
3. Turn on the 751H. The water drain valve will switch into the open position and
vent any accumulated water through the water drain. (Standing H20 will cause
corrosion)
4. Turn the 751H off.
16 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator Getting Started
This shut down process will vent any water that has accumulated in the coalescing
filter. It will prevent this water from passing into the 751H in the event that the
instrument is inverted during storage or shipment.
3.7 Expendable Kits (OPT 42A)
A one-year supply of replacement particulate filters and consumable scrubber media
is available from Teledyne API as Option 42A. Refer to Appendix B for a list of
expendables.
3.8 Flow Restrictor (OPT 72B)
An external flow restrictor is available in order to run the 751H without a calibrator or
other external restriction. It is connected to the outlet fitting and restricts the air flow to
9 SLPM, allowing the 751H to build adequate backpressure to operate.
07773A DCN6833 17
Getting Started Teledyne API M751H High Performance Zero Air Generator
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18 07773A DCN6833
4 OPERATION
4.1 Overview
Refer to Figure 4-1 for a diagram of the 751H pneumatic flow.
The 751H dries and scrubs ambient air to produce zero air. To accomplish this, first
the compressor draws air in through the intake filter and compresses it. At the
compressor outlet, the air is under pressure and hot from the compression. The
relative humidity is high as a result of the high pressure.
The air is conducted through the cooling coil where heat is removed by transfer to the
cooling fan air. With the high pressure and the temperature reduced to ambient level,
the relative humidity is at its highest. At this point, the air is usually supersaturated.
From the coil, the wet air passes through a coalescing filter where the excess water is
separated and settles in the bottom of the filter. The controller periodically opens the
solenoid drain valve allowing the water to be expelled through a drain fitting.
The partially dried air enters the Regenerative Dryer which removes essentially all the
remaining water and a portion of the other contaminants. The pressure relief valve
may open occasionally and can be loud but this is a normal part of the operation for
the 751H.
As the air leaves the dryer, its pressure is controlled to 30 psig by an air pressure
regulator mounted on the instrument panel. This maintains a constant pressure at the
calibrator inlet and is displayed by the pressure gauge on the 751H instrument panel.
For a final clean-up, the dry, regulated air enters the specific scrubbers/filters as
follows:
1. The Hydrocarbon scrubber where Hydrocarbons are catalytically converted to
CO2 and water.
2. The NO scrubber where NO is oxidized to NO2.
3. The activated charcoal scrubber where the NO2, O3, SO2 and H2S are absorbed.
4. The CO scrubber, where CO is catalytically oxidized to CO2.
5. The clean dry air passes through a fine particulate filter and leaves the 751H
through the instrument panel bulkhead union (Zero Air Out).
07773A DCN6833
19
Operation Teledyne API M751H High Performance Zero Air Generator
751H Chassis
10LPM Pump
Pressure
Regulator
“AIR IN”
Drain Valve
Condenser
4-Way
Valve
Regen Dryer
Inlet Filter
BA
Pressure
Gauge
0 60
30
HC Scrubber
Purafil Scrubber
Charcoal Scrubber
CO Scrubber
DFU
Filter
“ZERO AIR OUT”
Cooling Coil
Dewpoint
Sensor
“DRAIN OUT”
Relief Valve
Coalescer
Pressure Relief
Valve
Figure 4-1: Pneumatic Diagram
Figure 4-2 and Figure 4-3 are illustrations of the 751H plan view and a close-up of its
instrument panel, respectively.
20 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator Operation
Figure 4-2: Plan View
Figure 4-3: Instrument Panel
07773A DCN6833 21
Operation Teledyne API M751H High Performance Zero Air Generator
CAUTION
THE WATER/AIR SPRAY LEAVING THE DRAIN FITTING SPURTS AT
A HIGH VELOCITY AND MUST BE CONDUCTED AWAY FROM ANY
SENSITIVE COMPONENTS.
4.2 Components
This section describes the main components and their functions (not all components
are visible from the plan view).
4.2.1 Intake Filter
The intake filter is a serviceable assembly that houses a screen filter. Maintenance
instructions are provided in Section 5 of this manual.
4.2.2 Compressor
The compressor is a single-cylinder oscillating piston type driven by a split capacitor
AC motor. The compressor is dry; that is, there are no lubricants which can
contaminate the compressed air. The pistons are sealed by flexible TFE piston rings,
and after a short run-in period to seat the rings, should last for years. There are no
diaphragms.
The compressor is mounted on a sub-plate which is supported on four tuned vibration
isolators.
4.2.3 Cooling Coil
The cooling coil consists of several turns of copper tubing coiled through which the
cooling fan blows outside air.
4.2.4 Water Trap
The water trap is a coalescing type. Supersaturated air enters the trap and is rapidly
swirled causing the water droplets to deposit on a membrane where the drops
coalesce and gather in a puddle at the bottom of the filter bowl.
4.2.5 Water Drain Valve
The water drain valve is a stainless steel solenoid-operated valve through which
accumulated water is drained from the filter. The valve is sequenced by the controller
and is pulsed open every minute to remove water from the filter bowl.
The operation cycle has been preset at the factory and is not adjustable.
22 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator Operation
CAUTION – SAFETY HAZARD
DO NOT ADJUST THE RELIEF VALVE!
(Contact TAPI Technical Support if there is any concern about proper function).
4.2.6 Pressure Relief Valve
The pressure relief valve is a safety device designed to limit the maximum pressure
to which the 751H can be subjected. It is set to open at 75-80 psig. This can be quite
loud when the valve opens and sounds like steam escaping. This is normal operation
and does not mean there is a problem with the unit.
4.2.7 Regenerative Dryer
The Regenerative Dryer consists primarily of two parallel columns of molecular sieve,
in which alternately one column is scrubbing the air while the other is being
regenerated.
The Regenerative Dryer needs no warm-up and operates at full efficiency as soon as
the 751H is turned on. The molecular sieve is not consumed and is good for the life
of the instrument.
When the 751H is turned on, a four-way solenoid-operated valve directs high
pressure air to one of the two columns and vents the other column to atmosphere.
Virtually all the water in the high-pressure air is trapped by the molecular sieve. A
portion of the dried air is expanded to atmospheric pressure through a flow controller
and passes in reverse through the second column. By expanding the air, the volume
increases, thus enabling a small amount of dry purge air to evaporate the entrained
water in the second column. The wet purge air leaving the column is routed through a
stainless steel solenoid-operated valve and exhausted through the drain fitting. This
valve will periodically close when the four-way valve switches columns to maintain
system pressure. The majority of the dry air from the first column is conducted on to
the pressure regulator.
The controller toggles the four-way valve at a predetermined interval and the columns
alternate their function. This cycling rate has been selected to provide the optimum
balance of scrubbing efficiency and air usage and is not adjustable.
4.2.8 Pressure Sensor
The pressure sensor senses the system pressure directly following the regenerative
dryer and controls four-way valve action through the control board.
07773A DCN6833 23
Operation Teledyne API M751H High Performance Zero Air Generator
WARNING
THE 751H NOMINAL DELIVERY PRESSURE IS 30 PSIG. NEVER SET
THE DELIVERY PRESSURE HIGHER THAN 35 PSIG. TO DO SO MAY
CAUSE DAMAGE TO THE 751H AND INJURY TO THE OPERATOR.
CAUTION
THE AIR LEAVING THE SCRUBBER IS AT 300 C (575 F).
THIS COPPER COIL AND THE CASING CAN BE VERY HOT.
4.2.9 Pressure Regulator
The pressure regulator is set at 30 psig at the factory except for specially modified
units. Should adjustment be desired, the regulator is accessible on the instrument
panel. The adjustment knob has a push-pull locking ring which should be reengaged
after making an adjustment to prevent the knob from turning under vibration.
When the 751H is used with the Teledyne API Model 700 Calibrator, the pressure
should be between 28 and 32 psig. The Model 700 calibrator requires that its air
source be stable and not subject to compressor-induced pressure surges or pressure
variations with flow.
4.2.10 Hydrocarbon (HC) Scrubber
The High Purity Hydrocarbon Scrubber catalytically converts hydrocarbons to carbon
dioxide and water. The scrubber consists of a cylindrical cartridge which contains a
preheat chamber and the pelletized precious-metal catalyst. The cartridge is heated
by a band heater with an integral type-K thermocouple and is housed in a stainless
steel casing with appropriate thermal insulation. The cartridge temperature is
maintained by the instrument’s controller. The control board reads the thermocouple
voltage, compensates for cold-junction temperature and modulates the heater to
maintain a constant cartridge temperature.
The operating temperature of the cartridge is 300ºC. The temperature can be verified
by measuring the thermocouple voltage at the two terminal blocks of J17 (labeled
“HC Scrubber” in Figure 4-4). At 300ºC, the thermocouple voltage is 11.2 mV in an
ambient temperature of 25ºC (11.4 mV at 20º and 11.0 mV at 30º). While the
controller compensates for cold-junction temperature in controlling the heater, the
thermocouple voltage at the terminal block is not compensated, so allowance must
be made for ambient temperature when converting the voltage to cartridge
temperature.
The catalyst is proprietary. It theoretically should never need changing. However, in
the event it were to become contaminated or poisoned, we recommend that the
scrubber be replaced.
24 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator Operation
WARNING
DANGEROUS VOLTAGES EXIST ON THE CONTROLLER BOARD.
4.2.11 NO-NO2 Scrubber
The NO scrubber uses Purafil® to oxidize NO to NO2. Purafil® has a finite life and we
recommend that it be replaced annually or sooner if the level of NO in the air is high.
4.2.12 Charcoal Scrubber
Activated charcoal removes NO2, O3, SO2 and H2S. The charcoal should be replaced
annually or sooner if there are high atmospheric levels of these contaminants, or if
the calibrator zero air shows signs of a positive drift.
4.2.13 Carbon Monoxide (CO) Scrubber
The CO scrubber catalytically oxidizes CO to CO2. The catalyst is proprietary and
operates at room temperature; theoretically, it should never need changing. However,
in the event it were to become contaminated or poisoned, we recommend that the
scrubber be replaced.
4.2.14 Final Filter
The final filter, located adjacent to the instrument panel, retains any particulates
released by the 751H. The filter rating is 99.99% removal of 0.1 micron particles. If
the filter becomes restricted, it should be replaced.
4.2.15 Pressure Gauge
The pressure gauge shows the regulated air pressure available to a calibrator. The
gauge will usually indicate 30 psig. If the flow demand from the calibrator changes,
the regulator needs to be adjusted to display the correct pressure on the gauge. It is
normal for the gauge needle to not rest at zero when the system is not under
pressure.
4.2.16 Controller
All functions of the 751H are managed by the Control board (Figure 4-4), which
provides connections for all switched and non-switched AC components, AC input,
and the instrument panel power switch/circuit breaker.
Switched components include the regenerative dryer valve, the water drain
valve, and the relief valve.
Non-switched components include the HC scrubber, the fan, the LED board
and the pump.
07773A DCN6833 25
Operation Teledyne API M751H High Performance Zero Air Generator
Provision for voltage configuration is via a jumper plug (J5). All electrical connections
are made by quick release connectors to aid in servicing. Refer to Figure 4-4 for the
layout and to Appendix B for the interconnect and other drawings.
The 751H Control PCB is microcontroller based and provides the following functions:
Cycles the four-way valve of the Regenerative Dryer.
Cycles the water drain solenoid valve.
Cycles the relief valve in response to the pressure sensor.
Cycles the Regenerative Dryer four-way valve and momentarily opens the water
drain solenoid valve at compressor startup. This reduces the pressure at the
compressor outlet to facilitate compressor starting.
LED D13 flashes at 1 second intervals as an indication that the controller is
functioning, and a watchdog timer is enabled to prevent any power line disturbances
from halting the processor.
Figure 4-4: Control Board Layout
26 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator Operation
Power
Indicator
Dew Point
Indicator
Instrument State
Green
Green
Power ON, Dewpoint GOOD
Green
Yellow
Power ON, Dewpoint CAUTION
Green
Red
Power ON, Dewpoint BAD
Green
Red-Flashing
Power ON, Dewpoint CRITICAL
Alternating
Yellow –
Green
Representative
of Dewpoint
State
Maintenance Mode. 24hr Dewpoint Fault
Override
Red-Flashing
Yellow
Temperature Fault.
Red-Flashing
Red
Dew Point Fault.
4.2.17 Dewpoint Sensor
The dewpoint sensor ensures that the Regenerative Dryer maintains a dewpoint less
than -20°C (up to the maximum flow rate). This will increase the life of the chemical
scrubbers. When the dewpoint drops below -20°C, the green LED (dewpoint
indicator) on the instrument panel will light green, indicating that the air is dry.
4.2.18 Instrument Panel Indicator Lights
Multicolor indicator lights for both the power state and dewpoint state relay diagnostic
information and instrument mode to the user.
Table 4-1: Power and Dewpoint Condition Indicators
07773A DCN6833 27
Operation Teledyne API M751H High Performance Zero Air Generator
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28 07773A DCN6833
WARNING
There are high voltages present while the 751H is plugged in.
CAUTION
The operations outlined in this section are to be performed by
qualified maintenance personnel only.
Date Instrument was received:_____________________
Item
Charcoal
Scrubber
NO-NO2
Scrubber
(Purafil)
CO Scrubber
HC Scrubber
Regenerative
Dryer
Intake and
Final Filters
Recommended
Frequency
Annually
Annually
When
Contaminated
When
Contaminated
When
Contaminated
When
Contaminated
Refer to Section
5.5
5.6
5.7
5.8
5.9
5.12
Month
January
February
March
April
May
June
July
August
September
October
November
December
5 MAINTENANCE
5.1 Schedule
Before performing any maintenance, cycle the power on/off and drain any water that
may be present (refer to instructions for “Storage and Transportation” in Section 3.6).
Table 5-1 presents the maintenance schedule.
Table 5-1: Maintenance Schedule
07773A DCN6833
29
MAINTENANCE Teledyne API M751H High Performance Zero Air Generator
CAUTION
Do not loosen any tubing connection while the 751H is running.
CAUTION
BEFORE WORKING ON THE 751H PLUMBING TURN OFF THE
751H, WAIT FOR THE PRESSURE GAUGE TO READ ZERO. (THIS
MAY REQUIRE THAT YOU LOOSEN THE INSTRUMENT PANEL
BULKHEAD UNION TO ALLOW THE AIR TO BLEED AWAY.)
5.2 Maintenance Mode
When changing the media of the Charcoal Scrubber (Section 5.5) and the NO-NO2
Scrubber (Section 5.6), the new media will contain some moisture due to humidity in
the ambient air, consequently triggering a dewpoint fault condition. Placing the 751H
in Maintenance Mode will override the fault for 24 hours, allowing time to thoroughly
dry the new media before resuming normal operation of the 751H. (In high humidity
environments this may take longer).
To activate Maintenance Mode, first follow the instructions for changing the media. At
the step when instructed to place the instrument in Maintenance Mode, locate the
hole in the bulkhead of the Instrument Panel. This hole is lined up with the
Maintenance Mode button on the Control Board (Figure 4-4); pass a blunt instrument
with a small diameter through the hole and press the button.
5.3 Cleaning
1. Occasionally, depending upon the local conditions, check the inside of the 751H
for excessive dirt or dust.
2. Particularly, check the cooling fan, cooling coil and compressor fan inlet.
3. Remove any dirt or dust with a vacuum cleaner.
Do not use an air jet. This will only redistribute the dirt and will not remove it.
5.4 Checking Tubing
1. Under the vibration of the compressor, it is possible for some parts of the TFE
tubing to abrade against nearby objects. This is most likely to occur with the
tubing directly attached to the compressor.
2. Check to see if any signs of abrasion are present, and, if so, re-dress the tubing.
3. If any section of tubing appears to be heavily abraded, remove and replace it.
30 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator MAINTENANCE
WARNING
EVEN THOUGH THE INSTRUMENT PANEL POWER SWITCH IS
OFF, THERE IS LINE VOLTAGE PRESENT AT THE POWER ENTRY
TERMINALS, POWER SWITCH TERMINALS AND ON THE
CONTROL BOARD. FOR ADDED SAFETY, REMOVE THE POWER
CORD FROM THE INSTRUMENT PANEL RECEPTACLE.
5.5 Replacing the Charcoal Scrubber Media
Before emptying the used charcoal, wearing a dust mask is recommended as a
preventive measure since it is possible that some charcoal dust may rise when
emptying and refilling the canister.
1. Turn off the 751H and wait for the pressure to go to zero.
2. Remove the 1/4” tubing connected to the top of the scrubber canister.
3. Release the fastening strap to free the canister.
4. Remove the 1/4” tubing connected to the bottom of the canister.
5. Unscrew the cap of the canister.
6. Remove the pad from the top of the canister.
7. Pour out the charcoal and dispose of it properly.
8. Refill the canister with fresh charcoal, up to 3/8” to 1/4” from the top. Rap the
sides of the canister gently to settle the charcoal and add more as necessary.
9. Replace the pad on top of the charcoal.
10. Wipe any charcoal dust from the top edge of the canister. This is the surface
which seals against the gasket.
11. Check that the gasket is in place in the cap.
12. Replace the cap and tighten it “hand-tight”.
13. Reconnect the lower 1/4” tube connection.
14. Reattach the canister with the fastening strap.
15. Reconnect the upper 1/4” tube.
16. Enable “maintenance mode” (Section 5.2) which will bypass the dewpoint
warnings during scrubber drying.
17. After the compressor is turned on, it may be wise to check the scrubber for leaks
(see Section 5.11).
07773A DCN6833 31
MAINTENANCE Teledyne API M751H High Performance Zero Air Generator
NOTE
After replacing the material in these scrubbers it can take up to 48 hours for
the material to dry out before the 751H is functioning optimally.
CAUTION
THE SCRUBBER MAY BE HOT.
5.6 Replacing the NO - NO2 Scrubber Media
This procedure is identical to the charcoal scrubber replacement procedure except
that the canister should be refilled with Purafil .
5.7 Replacing the CO Scrubber
The CO scrubber is attached to the bulkhead adjacent to the instrument panel
(Figure 4-2). This is not a heated scrubber. It is secured with four screws through the
body of the scrubber into the panel.
1. Turn off power and unplug the 751H.
2. Remove the Charcoal and NO-NO2 scrubbers to gain access to the hardware.
3. Disconnect the tubing and remove the four screws to remove the scrubber.
4. With a wrench, remove the two fittings from the top of the scrubber cartridge.
5. Pick out the retaining screens.
6. Shake out the catalyst beads and dispose. No special disposal methods
required.
7. Pour in new catalyst to 1/2” from the top of the bores. Tap the cartridge sides
gently to settle the beads and top up to the 1/2” level.
8. Return the retainer screens.
9. Replace the TFE tape on the two unions and replace the unions in the cartridge.
10. Reassemble the scrubber and reattach it to the panel.
11. Reconnect the tubing and receptacle.
12. Turn on the 751H and perform a leak check (see Section 5.11).
32 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator MAINTENANCE
CAUTION
WAIT FOR THE SCRUBBER TO COOL. THE SCRUBBER CASING
AND THE COPPER COOLING COIL WILL BE VERY HOT.
CAUTION
ENSURE THAT THE COPPER COOLING COIL DOES NOT TOUCH
ANY WIRE OR CABLE.
CAUTION
BE SURE THAT YOU USE A TELEDYNE API-SUPPLIED, PURGED
SCRUBBER. OTHERWISE, DOWNSTREAM COMPONENTS MAY BE
DAMAGED. AN UNPURGED HYDROCARBON SCRUBBER
PRODUCES A LOT OF WATER WHEN FIRST TURNED ON.
5.8 Replacing the Hydrocarbon (HC) Scrubber
1. Turn off power and unplug the 751H power cord.
2. Remove the six screws which secure the chassis to the case.
3. Remove the chassis assembly from the case.
4. Remove the cover, exposing the pump and HC scrubber.
5. Disconnect the HC scrubber power at the Controller.
6. Unplug the thermocouple from the control board.
7. Disconnect the pneumatic connections at the REGULATOR OUTLET AND AT
THE COPPER COOLING COIL INLET, using 1/2 and 9/16 wrenches.
5. Loosen the four captive screws holding the scrubber to the chassis.
6. Lift out the scrubber.
7. Install a new Teledyne API-supplied scrubber (these are purged at the factory)
and tighten the four captive screws.
8. Attach and tighten the pneumatic connections.
9. Reconnect the wiring from the scrubber to the control board.
11. Plug the thermocouple into the control board.
12. Turn on the 751H.
13. Connect a millivolt meter to J17 (labeled “HC Scrubber” in Figure 4-4) on the
temperature controller.
Observe that the Heater Relay LED (D8) starts blinking at 11.2 mV (300ºC) and
that the thermocouple voltage holds steady.
14. When all traces of water have disappeared from the 751H output, the output
may be reconnected to the analyzer.
07773A DCN6833 33
MAINTENANCE Teledyne API M751H High Performance Zero Air Generator
5.9 Servicing The Regenerative Dryer
It is unlikely that the Regenerative Dryer should ever need service. Should the
molecular sieve become contaminated by oil or other external contaminants, the
scrubber will need to be cleaned and recharged. Refer to Figure 5-1.
NOTE
Wearing a dust mask could be helpful as a preventive measure since the
molecular sieve may be dusty.
1. Turn off the 751H and turn on again and remove any water in bowl.
2. Unplug the instrument from electrical service.
3. Allow the pressure to bleed to zero.
4. Remove the two pneumatic connections and the electrical connection from the 4way manifold.
5. Remove the dryer from the chassis by undoing the four captive screws in the
scrubber base.
6. Remove the 4-way valve bracket from the upper manifold and let the valve hang
loose attached to the lower manifold. (If the valve needs to be replaced, see
Section 5.10 for procedures).
7. Remove the three nuts on top of the upper manifold.
8. Remove the upper manifold.
9. Remove the two dryer columns from the bottom manifold.
10. Change the four o-rings in the circular grooves in the upper and lower manifolds.
11. Remove the retainer pads from the top end of each dryer column and dump the
molecular sieve into a suitable waste receptacle.
12. Remove the retainer pads from the bottom end of each dryer column.
13. Wipe out the inside of the dryer columns with a clean dry cloth.
14. Examine the surface and ports in the upper and lower manifolds. If there is an
accumulation of dirt or corrosion, disassemble the manifolds and clean them. If
not, proceed with the next step.
15. Place new, clean retainer pad in the bottom end of each dryer column, pushing
in until the pads are at the retainer rings.
16. Invert the columns so that the open ends (top) are up.
17. Pour new, clean molecular sieve into each column, up to 1/4” from the top. Rap
the side gently, (with a screw-driver handle, for instance) to settle the molecular
sieve, and then top up to the 1/4” mark again.
18. Place new, clean retainer pads into the top of each column to the retainer ring.
34 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator MAINTENANCE
19. Wipe the ends of the columns. These are the surfaces which seal against the
o-rings.
20. Set the bottom of the columns into the lower manifold. Ensure that they are in
the grooves and not caught up on the edge.
21. Place the upper manifold on top of the two columns. Ensure that the columns are
in the grooves. (Wiggle the columns sideways to ensure that the columns are
trapped in the grooves.)
22. Replace the nuts and lock-washers on the three tie rods BUT DO NOT TIGHTEN
THEM.
23. Push down hard in the center of the upper manifold with one hand and fingertighten the nuts until you feel a soft resistance.
24. With a wrench, tighten each nut in turn, 1/2 turn at a time. This will ensure that all
the nuts are tightened evenly. If the nuts are tightened unevenly, the column orings may not seal and you may cause damage to the sealing surfaces.
25. Examine the fit of the columns in the manifold groove one more time.
26. Re-attach the 4-way valve bracket.
27. Return the dryer to the 751H chassis and tighten the four captive screws.
28. Reconnect the two pneumatic fittings and the valve power cord.
29. Plug in and turn on the 751H.
30. Check the dryer for leaks (see Section 5.11).
If no leaks are detected, the 751H is ready for operation.
07773A DCN6833 35
MAINTENANCE Teledyne API M751H High Performance Zero Air Generator
Figure 5-1: Regenerative Dryer
36 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator MAINTENANCE
.
WARNING
ENSURE TO UNPLUG THE POWER CORD PRIOR TO
PERFORMING ANY LEAK CHECK PROCEDURE
NOTE
This procedure checks the majority of the components and fittings. If you
believe that there is still a leak, please contact Technical Support:
(858) 657-9800.
5.10 Changing the Regenerative Dryer’s 4-Way Valve
1. Remove the Regenerative Dryer from the chassis as described in Section 5.9
above.
2. Disconnect the two tubing connections and the electrical connection to the 4-way
valve.
3. Remove the 4-way valve bracket from the regenerative upper manifold.
4. Remove the 4-way valve from the bracket.
5. Attach a new valve, complete with tube fittings and muffler(s).
6. Attach the bracket to the upper manifold.
7. Connect the electric cable and two pneumatic fittings.
8. Re-install the dryer in the 751H chassis and tighten the four captive base screws.
5.11 Leak Check
1. Power off the unit and unplug the power cord.
2. Cap the zero out fitting and the drain port fitting.
3. Disconnect the line to the dewpoint sensor manifold and cap it.
4. Plug in the power cord, power on the unit, and allow it to run for one minute (until
it’s pressurized).
5. Turn off the power switch and wait five minutes. The reading on the instrument
panel pressure gauge should not change.
07773A DCN6833 37
MAINTENANCE Teledyne API M751H High Performance Zero Air Generator
5.12 Filter Element Replacement
5.12.1 Intake Filter
To service the intake filter (Figure 4-2):
1. Turn the filter cap counter-clockwise and remove from the filter housing.
2. Remove the filter screen and use compressed air to blow out any debris.
3. Reseat the filter screen inside the filter housing.
4. Return the cap to the filter housing and secure in place with a clockwise turn.
If the screen is damaged, then replace the intake filter assembly (TAPI P/N FL51).
5.12.2 Final Filter
To replace the disposable Final filter unit (Figure 4-2):
1. Remove the disposable filter unit (DFU) from the retainer clip.
2. Release the tubing at each end of the DFU by pressing the spring-loaded quickconnects toward the DFU and pulling the tubing away.
3. Dispose of the used DFU.
4. Reinsert the tubing into each end of the new DFU (Teledyne API P/N FL50),
pushing in tightly to secure.
5. Secure the new filter unit into the retainer clip.
38 07773A DCN6833
Teledyne API M751H High Performance Zero Air Generator TROUBLESHOOTING
CAUTION – Avoid Warranty Invalidation
Failure to comply with proper anti-Electro-Static Discharge (ESD) handling
may void your warranty. For anti-ESD handling instructions please refer to the
manual, Fundamentals of ESD, PN 04786, which can be downloaded from our
website at http://www.teledyne-api.com under Help Center > Product Manuals
in the Special Manuals section.
Problem
Probable Cause
Corrective Action
Power light does not come on.
Unplugged power cord.
Plug in power cord at both ends.
Incorrect line voltage.
Refer to Table 3-1 for the correct
line voltage.
Tripped power switch/circuit
breaker.
Reset power switch/circuit
breaker.
Compressor does not start
(after 10 seconds).
AIR IN filter is plugged.
Clean or replace the filter.
Compressor fan is jammed.
Check for any mechanical
obstruction.
Pump is not connected to
controller.
Connect the pump to the
controller.
Pump relay (K4) is open.
Replace the controller.
Instrument vibrates
excessively.
Compressor shock isolator screws
are loose.
Tighten the screws.
The tubing attached to the
compressor is vibrating against a
component.
Adjust the placement of the
tubing.
Pressure does not increase to
30 psig.
Air demand too high. Maximum air
flow is 10 SLPM.
No action. Pressure will increase
as flow demand decreases.
Air Inlet impeded.
Remove the inlet filter and check
for impediment or replace filter.
Pressure regulator is set too low.
Adjust the pressure on the
instrument panel. (Please see
Warning Note at end of this
table).
Air leakage.
Check for leaks. (Section 5.11).
Pump has low output pressure.
Rebuild pump (see sticker on
pump for rebuild kit PN).
6 TROUBLESHOOTING
This section presents possible problems and their causes and solutions.
Table 6-1: Troubleshooting
07773A DCN6833 41
TROUBLESHOOTING Teledyne API M751H High Performance Zero Air Generator
Problem
Probable Cause
Corrective Action
Output pressure surges.
Pressure regulator is set too high
and pegged.
Adjust pressure regulator down.
Output air is not “Zero”.
Scrubbers may be contaminated.
Replace the scrubbers.
Output air is not dry.
4-way valve is jammed; only one
column is being used.
Check to ensure the valve is
plugged in; replace the valve.
Reflux flow controller is plugged.
Replace the upper manifold
assembly.
Molecular sieve is contaminated.
Replace the molecular sieve.
CAUTION
THE 751H NOMINAL DELIVERY PRESSURE IS 30 PSIG.
NEVER SET THE DELIVERY PRESSURE HIGHER THAN 35 PSIG.
TO DO SO MAY CAUSE DAMAGE TO THE 751H AND INJURY TO
THE OPERATOR.
42 07773A DCN6833
Note
Use of replacement parts other than those supplied by TAPI may result in noncompliance with European standard EN 61010-1.
Note
Due to the dynamic nature of part numbers, please refer to the Website at
http://www.teledyne-api.com or call Technical Support at 800-324-5190 for more
recent updates to part numbers.
APPENDIX A - SPARE PARTS
07773A DCN6833 A-1
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A-2 07773A DCN6833
078390000 751H SPARE PARTS LIST Revision A
PART NUMBER DESCRIPTION
005960000 MEDIA, ACTIVATED CHARCOAL KIT
005970000 MEDIA, PURAFIL KIT
006900000 FELT PADS FOR REGEN DRIER
006900100 FELT PADS FOR SCRUBBER CANISTERS
016920000 MEDIA, MOLECULAR SIEVE KIT
018490000 PRESSURE GAGE
040370000 CO SCRUBBER ASSEMBLY
057270000 GASKET FOR SCRUBBER CANISTERS
077830100 PCA, CONTROL BOARD, 751H
077990000 PUMP ASSY, 115V/60HZ, 751H
077990100 PUMP ASSY, 230V/50HZ, 751H
078580000 ASSY, WATER DROP VALVE 751H
078600000 ASSY, DRYER RELIEF VALVE 751H
078610000 ASSY, 12VDC FAN 751H
FL0000007 FILTER, COALESCING
FL0000050 FILTER, DFU, KYNAR
FL0000051 FILTER, INTAKE, 751H
HW0000439 BULKHEAD SCRUBBER MOUNT
OR0000035 O-RINGS FOR REGEN DRIER
PU0000099 REBUILD KIT, PUMP, 751H
07773A DCN6933
A-3
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A-4
07773A DCN6933
APPENDIX B - SCHEMATICS
07773A DCN6833 B-1
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B-2 07773A DCN6833
Interconnect List 751H
Revision Description Checked Date DCN
A Production Release RH 10/6/2013 6768
Cable Part
#
Signal Assembly PN J/P Pin Assembly PN J/P Pin
077940100 Cbl Assy, Front Panel LED Indicator, 751X
PWR RED LED Front Panel LED Board 077890000 J1 1 Control Board 077830000 J11 1
PWR GREEN LED Front Panel LED Board 077890000 J1 2 Control Board 077830000 J11 2
RH RED LED Front Panel LED Board 077890000 J1 7 Control Board 077830000 J11 3
GND Front Panel LED Board 077890000 J1 4 Control Board 077830000 J11 4
GND Front Panel LED Board 077890000 J1 3 Control Board 077830000 J11 5
RH GREEN LED Front Panel LED Board 077890000 J1 6 Control Board 077830000 J11 6
077990000 Assy, Pump. 115V~, 751H
AC Line Assy, Pump. 115V~ 077990000 L Control Board 077830000 J8 1
AC Neutral Assy, Pump. 115V~ 077990000 N Control Board 077830000 J8 2
Power Gnd Assy, Pump. 115V~ 077990000 G Control Board 077830000 J8 3
077990100 Assy, Pump. 230V~, 751H
AC Line Assy, Pump. 230V~ 077990100 L1 Control Board 077830000 J8 1
AC Neutral Assy, Pump. 230V~ 077990100 L2 Control Board 077830000 J8 2
Power Gnd Assy, Pump. 230V~ 077990100 G Control Board 077830000 J8 3
078580000 Assy, Water Drop Valve, T701X/751X
+12V RET Water Drop Valve 078580000 EXT/J16 1 Control Board 077830000 J16 1
+12V Water Drop Valve 078580000 EXT/J16 2 Control Board 077830000 J16 2
078590000 Cbl Assy, 4-Way Shuttle Valve, T701X/751H
+12V RET 4-Way Shuttle Valve 078590000 P13 1 Control Board 077830000 J13 1
+12V 4-Way Shuttle Valve 078590000 P13 2 Control Board 077830000 J13 2
CONNECTION FROM
CONNECTION TO
07773A DCN6833
B-3
B-4
07773A DCN6833
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The information hereon is the property of
API and is submitted in strictest
confidence for reference only.
Unauthorized use by anyone for any othe
rpurposese is prohibited. This document
or any information contained in it may be
duplicated without proper authorization.
Printed Documents are Uncontrolled
Everywhere look
ADVANCED POLLUTION INSTRUMENTATION
J1
DC
AC
J7
FAN
FA10
J11
J17
J3
HEATER
SCRUBBER
PUMP
J1
J8
J2
J2
J1
J15
J19
077830000
SWITCH
AC POWER
ENTRANCE
AC POWER
CONTROL BOARD
PS48
J13
J16
J1
J1
J5
078670000 (115V)
CONFIG
078670100 (230V)
T751H
DRIER
RELIEF
VALVE
WATER
DROP
VALVE
FRONT
PANEL
LED
THERMISTOR
TEMP
751H
PLUG
4-WAY
SHUTTLE
VALVE
07773A DCN6833
B-5
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