Perma Pure Baldwin PCD-3000-W User manual

Rev 02, 09/21
Perma Pure LLC • A Halma Company • [e-mail] • www.permapure.com
Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
F
Baldwin Hybrid Sample
Gas Cooler
PCD-3000-W
PCD-3000-DP
PCD-3000-PR
PCD-3000-PR-CD
Sample Conditioning
System Featuring
Nafion™ Membrane
Drying Technology
User’s Manual
Rev 02

Rev 02, 09/21
Perma Pure LLC • A Halma Company • [e-mail] • www.permapure.com
Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
Contents
CAUTION STATEMENT ..................................................................................... 5
IMPORTANT SAFETY WARNINGS ....................................................................... 6
WARRANTY INFORMATION ............................................................................... 7
UNPACKING ................................................................................................... 8
SPECIFICATIONS AND FEATURES...................................................................... 9
SYSTEM INSTALLATION ................................................................................... 9
6.1 System Enclosure.................................................................................................................................... 9
6.2 Mounting................................................................................................................................................ 9
6.3 Utility Connections ............................................................................................................................... 10
6.3.1 Electrical Connections...................................................................................................................10
6.3.2 Instrument Air Inlet ...................................................................................................................... 10
6.3.3 Heated Sample Gas Inlet and Dry Sample Gas Outlet...................................................................10
6.3.4 Filter Drain Outlet.........................................................................................................................11
6.3.5 Purge Air Exhaust Vent .................................................................................................................12
6.3.6 Sample Gas Bypass Port................................................................................................................12
SYSTEM COMPONENTS .................................................................................. 13
7.1 FUNCTION OF SAMPLE GAS FLOW COMPONENTS............................................................................... 13
7.1.1 Heat Exchanger.............................................................................................................................13
7.1.2 Sample Gas Cooling Coil ...............................................................................................................14
7.1.3 Sample Gas Filters/Eductor ..........................................................................................................14
7.1.4 Sample Gas Bypass Port................................................................................................................14
7.1.5 PD Sample Gas Dryer ....................................................................................................................15

Rev 02, 09/21
Perma Pure LLC • A Halma Company • [e-mail] • www.permapure.com
Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
7.2 FUNCTION OF FILTER DRAIN COMPONENTS ........................................................................................ 16
7.2.1 Model PCD-3000-W......................................................................................................................16
7.2.2 Model PCD-3000-W-DP ................................................................................................................16
7.2.3 Model PCD-3000-PR .....................................................................................................................16
7.2.4 Model PCD-3000-PR-CD................................................................................................................16
7.3 FUNCTION OF PURGE AIR FLOW COMPONENTS .................................................................................. 17
7.3.1 Flowmeter and Needle Valve........................................................................................................ 17
7.3.2 Vacuum Gauge..............................................................................................................................17
7.3.3 Purge Air Eductor..........................................................................................................................17
START-UP PROCEDURE .................................................................................. 17
8.1 Primary Sample Handling System Check Procedure ............................................................................. 17
8.2 Hybrid Sample Gas Cooler System Check Procedure............................................................................ 17
8.2.1 Drain and purge exhaust lines ...................................................................................................... 18
8.2.2 Instrument air source ...................................................................................................................18
8.2.3 Flowmeter and Needle valve ........................................................................................................18
8.2.4 Vacuum gauge ..............................................................................................................................18
8.2.5 Grounding Lug ..............................................................................................................................19
SHUTDOWN PROCEDURE ............................................................................... 19
DOS & DON’TS ............................................................................................. 19
MAINTENANCE AND REPAIR ........................................................................... 19
11.1 Operational adjustments...................................................................................................................... 19
11.2 Sample Filter......................................................................................................................................... 19
11.2.1 Filter Disassembly/Reassembly –..................................................................................................20
11.3 Sample Gas Filter Drain ........................................................................................................................ 20
11.4 Nafion™Membrane PD Sample Gas Dryer............................................................................................ 21

Rev 02, 09/21
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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
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11.4.1 PD Sample Gas Dryer Disassembly –.............................................................................................22
11.4.2 PD Sample Gas Dryer Assembly –.................................................................................................22
REPLACEMENT PART LIST & RECOMMENDED SPARES......................................... 22
12.1 Filter ..................................................................................................................................................... 23
12.2 Nafion™ Membrane PD Dryer .............................................................................................................. 23
APPENDIX A: DRAWINGS .............................................................................. 24
13.1 System Interface: (PCD-3000-01-01,02,03,04) ..................................................................................... 24
13.2 System Assembly: (PCD-3000-03-01).................................................................................................... 25
13.3 System Piping and Instrumentation Diagram: (PCD-3000-05-01,02,03,04).......................................... 26
13.4 Q.C. Checkout list: (SE-F-032) ............................................................................................................... 27
CONTACT US ................................................................................................ 28

Rev 02, 09/21
Perma Pure LLC • A Halma Company • [e-mail] • www.permapure.com
Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
CAUTION STATEMENT
Thank you for purchasing sample gas conditioning equipment from Perma Pure LLC. We want your new sample
gas conditioning equipment to operate safely. Anyone who installs or uses this equipment should read this
publication before installing or operating this equipment.
To minimize the risk of potential safety problems, you should follow all applicable local and national codes that
regulate the installation and operation of your equipment. These codes vary from area to area and usually
change with time. It is your responsibility to determine which codes should be followed and to verify the
equipment, installation and operation is in compliance with the latest revision of these codes.
At a minimum, you should follow all applicable laws and regulations with regard to the installation and use of
this system. There may be local regulatory or government offices that can also help determine which codes and
standards are necessary for safe installation and operation.
Equipment damage or serious personal injury can result from the failure to follow all applicable codes and
standards. We do not guarantee the products described in this publication are suitable for your particular
application, nor do we assume any responsibility for your system design, installation or operation. This product
should not be operated in any manner that is inconsistent with its intended use.
If you have any questions concerning the installation or operation of this equipment, or you need additional
information, please call us at 1-800-337-3762.
This publication is based on information that was available at the time it was printed. At Perma Pure we
constantly strive to improve our products and services, so we reserve the right to make changes to the
products and/or publications at any time without notice and without any obligation. This publication may also
discuss features that may not be available in certain revisions of the product
Trademarks
Nafion™, Viton™and Teflon™are registered trademarks of The Chemours Company.
Caution Statement

Rev 02, 09/21
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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
IMPORTANT SAFETY WARNINGS
Please be sure to review the following basic safety procedures. These procedures represent the MINIMUM
requirements to operate the equipment safely. It is the ultimate responsibility of the operator to ensure
proper safety practices are utilized at the point of operation.
NEVER attempt to operate this equipment in an explosive, wet, or otherwise hazardous area.
NEVER exceed any specified rating for the equipment. Temperature and pressure ratings must be closely
observed and not exceeded. Voltage rating of the equipment MUST match the rating on the data label.
Please make sure that it matches before powering up the equipment.
Condensate is potentially dangerous. NEVER handle drain lines, impingers or any other item that may have
come in contact with the gas stream or any hazardous material, without adequate personal protective
equipment. ALWAYS assume that any liquid present is hazardous.
Sample gas is potentially dangerous. A leak test is recommended at initial start-up and as often as necessary
to maintain a safe working environment around the equipment. The gas stream exhaust must exit away from
all personnel to prevent dangerous exposure.
NEVER operate the equipment with any part of the enclosure unsecured. All operated doors and covers must
be in place and secured prior to operation. Electrical current may be present behind covers or doors, even if
tools are not necessary to access these components.
NEVER attempt service on this equipment without first disconnecting all energy sources. Repair of this
equipment should only be done by properly trained personnel that are familiar with the potential risks
involved with servicing of the equipment.
NEVER operate this equipment if it is visibly damaged or the possibility exists that it may have been
damaged.
The use of components that have not been purchased through an authorized Perma Pure dealer or directly
from Perma Pure may compromise the safety of the operator. Additionally, use of non-authorized
components may change the operating characteristics of this equipment. Any changes to the equipment,
that modify its operation in any way, are dangerous, and are strictly prohibited.
Read the entire operating manual before attempting to set up or operate the equipment.
Please heed all warning labels on the equipment. They are there to remind you of possible hazardous
conditions.
Verify the integrity of any connections that are made to the unit.
Verify that the unit is plumbed properly to operate effectively.

Rev 02, 09/21
Perma Pure LLC • A Halma Company • [e-mail] • www.permapure.com
Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
WARRANTY INFORMATION
Perma Pure (Seller) warrants that product supplied hereunder shall, at the time of delivery to Buyer,
conform to the published specifications of Seller and be free from defects in material and workmanship
under normal use and service. Seller’s sole obligation and liability under this warranty is limited to the repair
or replacement at its factory, at Seller’s option, of any such product which proves defective within one year
after the date of start-up (or within 18 months after original shipment at the discretion of Seller) and is found
to be defective in material or workmanship by Seller’s inspection.
Buyer agrees that (1) any technical advice, information, suggestions, or recommendations given to Buyer by
Seller or any representative of Seller with respect to the product or the suitability or desirability of the
product for a particular use or application are based solely on the general knowledge of Seller, are intended
for information guidance only, and do not constitute any representation or warranty by Seller that the
product shall in fact be suitable or desirable for any particular use or application; (2) Buyer takes sole
responsibility for the use and applications to which the product is put and Buyer shall conduct all testing and
analysis necessary to validate the use and application to which Buyer puts the product for which Buyer may
recommend the use or application of the product by others; and (3) the characteristics, specifications,
and/or properties of the product may be affected by the processing, treatment, handling, and/or
manufacturing of the product by Buyer or others and Seller takes no responsibility for the nature or
consequence of such operations or as to the suitability of the product for the purposes intended to be used
by Buyer or others after being subjected to such operations.
SELLER MAKES NO OTHER WARRANTY, EXPLICIT OR IMPLIED, OF THE PRODUCT SUPPLIED HEREUNDER,
INCLUDING, WITHOUT LIMITATION, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
PARTICULAR PURPOSE, AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY EXCLUDED. SELLER SHALL HAVE
NO LIABILITY FOR LOSS OF PROFITS, OR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES UNDER ANY
CIRCUMSTANCES OR LEGAL THEORY, WHETHER BASED ON NEGLIGENCE, BREACH OF WARRANTY, STRICT
LIABILITY, TORT, CONTRACT, OR OTHERWISE. SELLER SHALL IN NO EVENT BE LIABLE IN RESPECT OF THIS
ORDER AND OR PRODUCT DELIVERED ON ACCOUNT OF THIS ORDER FOR ANY AMOUNT GREATER THAN THAT
PAID TO SELLER ON ACCOUNT OF THIS ORDER.

Rev 02, 09/21
Perma Pure LLC • A Halma Company • [e-mail] • www.permapure.com
Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
UNPACKING
Perma Pure has made every effort to ship you a high-quality product that has been thoroughly inspected and
tested. It has been carefully packed to ensure that it arrives at your facility in good condition. Even though
every effort has been made to prevent damage during transportation, damage can occur by the carrier. This is
out of Perma Pure’s control and is the responsibility of the carrier to ensure that your equipment arrives intact
and undamaged.
Inspect outside packaging. If there is any visible damage, inform the carrier at the time of delivery. This
inspection is important! Once the package is signed for, responsibility for any visible damage then transfers
to the consignee.
Unpack your equipment. Visually inspect the outside of your equipment for any damage. If there is any
damage, contact the carrier immediately. Generally, a carrier must be notified within 24 hours of the delivery
to make a hidden damage claim. Save the packing material in the event a damage claim must be verified by the
carrier.
Items in the carton include:
•PCD-3000-W, PCD-3000-W-DP, PCD-3000-PR, or PCD-3000-PR-CD
Hybrid Sample Gas Cooler sampling system
•This user’s manual
oAssociated drawings attached within this file.
•Q.C. Checklist
If any of the above parts are missing or damaged, contact Perma Pure at 1 [phone].

Rev 02, 09/21
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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
1001 New Hampshire Ave., Lakewood, NJ 08701 USA
SPECIFICATIONS AND FEATURES
See appendix and refer to drawing PCD-3000-01-01 THRU -04 for details of the different models
SYSTEM INSTALLATION
6.1 SYSTEM ENCLOSURE
The system enclosure is constructed of fiberglass. It is UL and C UL listed and certified to NEMA 4, 4X standards
(UL 508).
The system is designed to be wall mounted vertically with the inlet at the top.
It is suitable for outdoor installation. If installed outdoors, it is highly recommended to install it in a location
that does not get direct sunlight or provide a method of shading the system. In addition, a method of
protecting the system from direct rain is also highly recommended.
6.2 MOUNTING
Mount the system enclosure to a wall or other rigid structure using four maximum ¼” (6mm) screws installed
through the provided holes. (The holes are concealed when the cover is in place).
The system must be installed on a vertical surface with the heated umbilical line entry located at the top. See
below for mounting screw locations.

Rev 02, 09/21
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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
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6.3 UTILITY CONNECTIONS
6.3.1 Electrical Connections
This model has no electrical power requirements.
Grounding lug must be connected to earth ground to prevent electrostatic build up.
6.3.2 Instrument Air Inlet
The instrument air supply must be cleaned of particulates, liquids, and regulated to 60PSI-100PSI at the
required flow rate. Perma Pure recommends both coalescing filtering and particulate filtering of the instrument
air just before entry into the unit. Intrusion of particulates or liquid into the system will compromise
performance.
6.3.3 Heated Sample Gas Inlet and Dry Sample Gas Outlet
Run the heated sample inlet line through the heat shrink entry seal and into enclosure. Connect the sample
tubing to the compression fitting port, as indicated in the image below. Shrink entry seal tubing around the
heated sample line with a heat gun to provide a water-tight seal.
Connect the system to the sample gas analyzers or downstream sample pump via the port labeled “Sample Gas
Outlet”.

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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
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6.3.4 Filter Drain Outlet
Vent the exhaust to a remote location, connect a line to the port labelled “Drain Port”. For runs under 10 ft.,
1/4” ID tubing is acceptable. For runs 10-40 ft., 3/8” ID tubing is recommended, and the number of elbows
should be kept to a minimum. This port must be connected to an appropriate drain that can accept potentially
acidic condensate and, in the case of model PCD-3000-W, a minimum of 0.25 scfm (7 lpm) of air with entrained
acidic mist. See below for location of the drain port on the specific models.
WARNING!
Failure to properly connect this port may result in personal injury and/or property damage!
Connect the line from the filter drain outlet to designated collection/exhaust basin that is
capable of accepting acid mist and the sample gas present at this location.

Rev 02, 09/21
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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
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6.3.5 Purge Air Exhaust Vent
Connect tubing or pipe of an appropriate material from port labeled Purge Exhaust to a permanent vent
designed for this type of discharge. 1/2” I.D. tubing can be used for runs up to 30 feet. Too small of an ID
and/or too long of a piping run may cause inadequate purge vacuum performance and/or collapse of the PD
sample gas dryer membrane tubes resulting in poor drying performance and/or high sample gas flow
restriction.
6.3.6 Sample Gas Bypass Port
This port is included on the PCD-3000-PR and PCD-3000-PR-CD models and is capped at the factory. It is
typically used to decrease the system response time in applications where the sample gas is under pressure.
Use of this function is optional.
WARNING!
FAILURE TO PROPERLY VENT THE SYSTEM MAY RESULT IN PERSONAL INJURY AND/OR
PROPERTY DAMAGE!
The gas exhausted from the purge exhaust port under normal operation is humid air. However, in the
event of an internal failure of the PD sample gas PD dryer installed in the system, the exhaust may
contain sample gas that may be hazardous. The purge exhaust must be permanently routed to a vent
system or directly outdoors. Do not allow the purge to vent into a structure or confined space.

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Telephone: [phone] • Toll Free: 800-337-3762 • Fax: [phone]
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SYSTEM COMPONENTS
7.1 FUNCTION OF SAMPLE GAS FLOW COMPONENTS
7.1.1 Heat Exchanger
After condensate has been removed in the sample filter, the heat exchanger utilizes heat from the incoming
sample gas stream to slightly preheat the filtered sample gas just before it enters the PD dryer. This keeps the

Rev 02, 09/21
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sample gas temperature above the sample gas dew point temperature and minimizes the possibility of liquid
water in the sample gas from reaching the PD sample gas dryer which could compromise performance.
7.1.2 Sample Gas Cooling Coil
A coil of tubing is located around the perimeter of the enclosure backplate to help cool the sample gas if it
enters the system hot. It improves the moisture removal capability of the coalescing filter and helps prevent
liquid water from getting to the PD sample gas dryer.
7.1.3 Sample Gas Filters/Eductor
The sample filter is FF-250 series with a 0.1 um, 95% efficiency standard coalescing element which removes
small particles and prevents liquid water and condensable vapors from passing through the system to the
analyzer.
Consisting of parts machined from solid PVDF fluoro-polymer, the filter body is designed to hold standard filter
elements as mentioned above for the purpose of removing particulate matter, water and aerosols of high
boiling point liquids like sulfuric acid.
The particulate matter is removed by collection on the filter element. Any aerosol liquids are removed by first
coalescing on the filter element and then collecting at the bottom of the filter bowl where the condensate can
be removed by the drain system.
7.1.4 Sample Gas Bypass Port
Response time is the time it takes for the sample gas to travel from the sampling point to the analyzer. In
emission monitoring applications, a long response time is usually not problematic. However, in process control
applications, fast response can be very important.
To reduce the response time without overwhelming the Hybrid Sample Gas Cooler system’s drying capacity, the
bypass port can be used to increase the sample gas flow from the sample point to the Hybrid Sample Gas
Cooler system. While the bypass flow is not dried in the Hybrid Sample Gas Cooler system, it is cooled, filtered,
and liquid water is removed. This helps reduce corrosion and contamination of any bypass flow regulation
equipment that is connected to the bypass port.
It should be noted that the increased sample flow created by use of the bypass port may increase the need for
filter element maintenance.
There are several ways to control the bypass flow using a needle valve/flowmeter, back-pressure regulators,
etc. This will be left to the customer to determine the best method for their application. The internal plumbing
of the bypass port is shown below.

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Bypass Port Plumbing
7.1.5 PD Sample Gas Dryer
The Nafion™ polymer transfers water molecules from one side of the membrane to the other by a first order
kinetic reaction. This is unlike a porous membrane that depends on the physical size of molecules. Nafion™
Polymer selectivity is based on chemical reactivity, not the size of the molecule –therefore, not traditional
permeation. The Nafion™ polymer selectively transfers water vapors, leaving most analytes in the gas stream
untouched. The driving force for the Nafion™ polymer to transfer water molecules is the difference in humidity
levels (water vapor pressure) on either side of the membrane. The Nafion™ polymer tries to attain equilibrium
of the partial pressure of water vapor on either side of its membrane.
PD-Series sample gas dryers consist of a bundle of 0.030″ O.D. Nafion™ membrane tubing housed within a
single large tube shell. Sample gas flows within the Nafion™ membrane tubing while water vapor absorbs into
the tubular membrane walls and is removed. Moisture permeating the tubing is carried away by a dry purge
gas within the shell that flows counter-current to the sample gas. The sample gas dryer purge air flow rate is
controlled by a needle valve located in the purge inlet port. The purge flow rate and vacuum level can be
monitored with the installed rotameter and vacuum gauge.

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7.2 FUNCTION OF FILTER DRAIN COMPONENTS
7.2.1 Model PCD-3000-W
This model includes an internal eductor operated drain for use with sub-atmospheric pressure sample gas.
When the Hybrid Sample Gas Cooler system is located upstream of the sample pump, the sample gas in the
system is under slight vacuum. To remove any liquid collected in the filter, a vacuum level higher than the
vacuum level inside the filter is required. This vacuum is generated by an eductor (venturi). Compressed air is
supplied to the eductor via an air pressure regulator which causes it to generate the required vacuum. Liquids
including water and coalesced acid mist collected at bottom of the filter bowl are pulled out of the filter via the
metering tube by the drain eductor. The eductor exhaust must be connected to an appropriate drain line as it
will contain sample gas as well as potentially corrosive liquid.
7.2.2 Model PCD-3000-W-DP
This model includes provisions for an external pump operated drain for use with sub-atmospheric pressure
sample gas.
When the Hybrid Sample Cooler system is located upstream of the sample pump, the sample gas in the system
is under slight vacuum. To remove any liquid collected in the filter, a vacuum level higher than the vacuum level
inside the filter is required. An external, separately supplied drain pump is intended to serve this purpose.
Collected liquids at the bottom of the filter bowl are pulled out of the filter by the pump via the bottom drain
bulkhead fitting. The pump outlet must be connected to an appropriate drain line as it will contain sample gas
as well as potentially corrosive liquid.
7.2.3 Model PCD-3000-PR
This model includes a continuous drain for use with positive pressure sample gas.
When the Hybrid Sample Gas Cooler system is located downstream of the sample gas pump or the sample gas
source is under positive pressure, the drain system functions continuously to remove any liquid collected in the
filter. Liquids collected at bottom of the filter bowl are pushed out of the filter by the sample gas pressure via
the metering tube and out of the bottom drain bulkhead fitting. The drain must be connected to an appropriate
drain line as it will contain sample gas as well as potentially corrosive liquid.
7.2.4 Model PCD-3000-PR-CD
This model includes a continuous drain for positive pressure flammable/toxic sample gas.
When the Hybrid Sample Gas Cooler system is located downstream of the sample gas pump or the sample gas
source is under positive pressure, the drain system functions continuously to remove any liquid collected in the
filter. Liquids collected at bottom of the filter bowl are pushed out of the filter by the sample gas pressure,
down to the float operated drain valve. The drain valve prevents sample gas from escaping into the drain line
by closing before the liquid in the tank is fully drained. Only liquid is allowed into the drain line. The drain must
be connected to an appropriate drain line as it may contain potentially corrosive liquid.

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7.3 FUNCTION OF PURGE AIR FLOW COMPONENTS
7.3.1 Flowmeter and Needle Valve
For maximum drying performance, monitor the flow of purge gas through the PD sample gas dryer. Refer to the
system check procedure for purge for adjustment and verification.
7.3.2 Vacuum Gauge
Allows for monitoring of the vacuum level generated by the PD sample gas dryer purge eductor. The vacuum is
dependent on the instrument air supply pressure, and the purge air flow rate. Refer to the system check
procedure for purge for adjustment and verification.
7.3.3 Purge Air Eductor
Nafion™membrane PD sample gas dryers operate on the differential of the partial pressure between the
sample and the purge. The purge eductor generates vacuum, which assists in generating this differential. It
operates on instrument air pressure. The generated vacuum level and the resulting drying performance will be
affected by fluctuations in supply pressure.
START-UP PROCEDURE
Read through this section completely before sample gas is allowed to flow through the system.
8.1 Primary Sample Handling System Check Procedure
If a probe filter is present upstream of the Hybrid Sample Gas Cooler system, check:
•If heated type, that heated probe and heated line are working properly and maintaining desired
temperature.
•Check that the probe filter element is present and clean. It should be cleaned frequently and replaced if
required.
•Check for cold spots (unheated tubing) in the heat traced sample line is always recommended
upstream of the conditioning system. Sample should enter conditioning system above 100C.
•If present, check that the blowback air operated valve or solenoid valve is operating properly.
8.2 Hybrid Sample Gas Cooler System Check Procedure

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Check that instrument air, sample gas inlet and outlet, and purge exhaust/filter drain connections have been
made and are operational.
All operating parameters are set and the system is fully tested at the factory. However, shipping and handling
of the unit may have affected some of the settings so an initial check is important.
8.2.1 Drain and purge exhaust lines
Confirm that both ports are properly connected. This is extremely important! Some sample gas will be present
and must be vented properly!
8.2.2 Instrument air source
Turn on instrument air to the system (60 Psig). Air will begin exhausting from the vent port. If the airflow is
absent check for proper instrument air pressure at the inlet to the system.
8.2.3 Flowmeter and Needle valve
Confirm the flow of purge gas flow through the PD sample dryer is 5 SLPM. This must be verified with the
vacuum line disconnected from the eductor. See figure below. This can be done by pushing the release ring on
the push-in tube fitting towards the body of the fitting and then pulling the tube out. When re-installing be sure
the tube is completely seated in the fitting. With the vacuum line attached, the flow will read significantly
above 5 SLPM (approximately 10 LPM).
8.2.4 Vacuum gauge
Verify that the sample gas dryer purge air vacuum is approximately 20 inHg. Since the instrument air supply
pressure may vary within the specified range, the vacuum level will vary slightly from application to application.
With the purge rate set at 5 SLPM (flowmeter reading will be higher due to high vacuum level) and instrument
air supplied at 60PSIG, the vacuum level is expected to be approximately 20 in-Hg. Should the vacuum fall off
considerably, check the instrument air supply pressure. If the vacuum remains low < 15inHg, clean the eductor.

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8.2.5 Grounding Lug
Verify that the system is properly grounded.
SHUTDOWN PROCEDURE
•Turn OFF the sample pump.
•Turn OFF instrument air supply
DOS &DON’TS
•DO NOT pass sample gas through the system if the instrument air supply to the system is off.
•DO NOT clean PD sample gas dryer with high pressurized instrument air or other gas.
•DO NOT operate the system with the drain or purge exhaust vent lines disconnected.
•DO NOT operate the system in an ungrounded condition (ground lug not connected)
•DO visually inspect the condition of sample filters and any customer installed filters regularly.
•DO regularly check the PD dryer purge vacuum and flow settings.
•DO contact a Perma Pure representative with any question you may have about the operation
of the system.
MAINTENANCE AND REPAIR
11.1 OPERATIONAL ADJUSTMENTS
If at any time the system is not operating correctly, the system adjustments should be checked for their proper
setting. Refer to the Q.C. checklist for proper adjustment settings and procedures.
11.2 SAMPLE FILTER
Sample gas flow through the filter is inside to outside. The filter is plumbed in this way to allow for proper
coalescing operation. Because of the flow direction, it may appear that filter element is relatively clean when

Rev 02, 09/21
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viewing it from the outside. However, the majority of collected particulate will be on the inside of the element
and therefore requires disassembly for proper inspection.
11.2.1 Filter Disassembly/Reassembly –
Replace/inspect the sample filter element as follows:
1. Loosen bolt on bottom of filter until it is free of the top cap.
2. Gently pull apart assembly and remove old element.
3. Wipe surfaces clean.
4. Prior to re-assembly, inspect o-rings on top and bottom caps and on center bolt for
any possible damage. Replace if necessary
5. Place the new element into the groove in the bottom cap.
6. Install glass shell onto bottom cap with a slight twisting motion to help the o-ring
seat properly.
7. Be sure that element is seated correctly and parallel to glass shell.
8. Carefully assemble the bottom assembly onto top cap while being sure the element
is properly aligned with the protrusion on the top cap that keeps the element
centered. A slight twisting motion will help the o-ring seat properly.
9. Inspect the assembly for properly sealed o-rings. They will appear as lines that are
about 1mm wide inside the glass shell. Check for gaps, twists or inconsistencies of
the seal line.
10. Replace bolt through hole in bottom piece and screw clockwise into top piece. Do
not over-tighten center bolt. It should be just tight enough so it does not vibrate
loose. Over-tightening will not help the filter to seal.
11.3 SAMPLE GAS FILTER DRAIN
If there is visible condensate collecting at the bottom of the filter, the drain system is not operating properly.
•Model PCD-3000-W. Remove the drain metering tube at the eductor and check for vacuum at the
eductor inlet.
oIf there is vacuum, it is likely that the metering tube is clogged. Clean with a fine wire or
replace.
oIf there is no vacuum, confirm that system instrument air pressure is present. Check for airflow
out of the eductor exhaust (drain port).
▪If no flow, shut down the system, turn off the system instrument air supply and remove
the tubing from the nozzle of the eductor.