DH Instruments GPC1-10000-AF User manual

© 2007 DH Instruments, a Fluke Company
GPC1-10000-AF™
Gas Pressure Controller
Operation and Maintenance Manual
NSN 6685-01-529-6990 RN
(1 of 3)

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
This equipment described in this manual is designed and manufactured for the intended purpose of
generating high pressure gas. Certain precautions need to be followed during installation and operation of this
device. Reading and understanding this material is essential to the safe and correct operation of the unit.
Pressurized equipment is potentially dangerous. The equipment described in this manual generates and
controls very high gas pressures. It should not be operated by anyone who has not become thoroughly familiar
with this manual. Additional training in general and pressure specific safety procedures will help assure
protection from harm or damage to personnel or property. Responsibility for the proper and safe operation of
this instrument rests with the user.
High pressure liquids and gases are potentially hazardous. Energy stored in these liquids and gases
can be released unexpectedly and with extreme force. High pressure systems should be assembled and
operated only by personnel who have been instructed in proper safety practices.
This instrument is not to be operated in any other manner than that specified by the manufacturer.
© 2005 DH Instruments, a Fluke Company All rights reserved.
Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any
form or by any means, electronic or mechanical, for any purpose, without the express written permission of DH Instruments, a
Fluke Company 4765 East Beautiful Lane Phoenix AZ 85044-5318 USA.
DH Instruments makes sincere efforts to ensure accuracy and quality of its published materials; however, no warranty, expressed
or implied, is provided. DH Instruments disclaims any responsibility or liability for any direct or indirect damages resulting from the
use of the information in this manual or products described in it. Mention of any product or brand does not constitute an
endorsement by DH Instruments of that product or brand. This manual was originally composed in English and was subsequently
translated into other languages. The fidelity of the translation cannot be guaranteed. In case of conflict between the English version
and other language versions, the English version predominates.
DH Instruments, DH, DHI, DH500, GPC1, OPG1, PG7000, PG7202, RPM4 and HPMS are trademarks, registered and otherwise,
of DH Instruments, a Fluke Company.
Swagelok is a registered trademark of Swagelok Company.
Teflon is a registered trademark of 3M Corporation.
Krytox is a registered trademark of the Dupont de Nemours Company.
Document No. 550135b-01
070628
Printed in the USA

TABLE OF CONTENTS
Page I © 2007 DH Instruments, a Fluke Company
T
TA
AB BL LE E O OF F C
CO
ON NT TE EN NT TS S
TABLE OF CONTENTS...............................................................I
TABLES.................................................................................III
FIGURES................................................................................III
ABOUT THIS MANUAL ...............................................................I
1. INTRODUCTION .................................................................3
1.1 PRODUCT OVERVIEW ...........................................................................................................................3
1.2 SPECIFICATIONS ...................................................................................................................................4
1.3 INSTRUMENT LAYOUT ..........................................................................................................................5
1.3.1 FRONT PANEL..............................................................................................................................................5
1.3.2 OVERALL DIMENSIONS...............................................................................................................................5
1.3.3 SYSTEM SCHEMATIC ..................................................................................................................................6
2. INSTALLATION ..................................................................7
2.1 UNPACKING AND INSPECTION ............................................................................................................7
2.1.1 REMOVING FROM PACKAGING..................................................................................................................7
2.1.2 INSPECTING CONTENTS.............................................................................................................................7
2.2 PGC-10000-AF SYSTEM.........................................................................................................................8
2.3 SITE REQUIREMENTS............................................................................................................................9
2.4 INITIAL SETUP......................................................................................................................................10
2.4.1 SET UP GPC1..............................................................................................................................................10
2.4.2 CONNECT PNEUMATIC POWER (DRIVE AIR) .........................................................................................10
2.4.3 CONNECT HIGH PRESSURE GAS SUPPLY (GB-152-AF).......................................................................11
2.4.4 MAKE TEST PRESSURE INTERCONNECTIONS......................................................................................12
2.4.4.1 CONNECT THE SYSTEM REFERENCE PRESSURE MEASURING DEVICE (RPM4/HPMS
A70M/A20M-AF).......................................................................................................................................12
2.4.4.2 CONNECTING TO A DEVICE UNDER TEST..........................................................................................12
2.4.4.3 CLEANLINESS CONSIDERATIONS WHEN CONNECTING DUTS....................................................13
2.5 POWER UP AND VERIFICATION.........................................................................................................15
2.5.1 APPLY THE HIGH PRESSURE SUPPLY...................................................................................................15
2.5.2 ADJUST THE INLET PRESSURE...............................................................................................................15
2.5.3 APPLY PDVV DRIVE PRESSURE..............................................................................................................16
2.5.4 CHECK OPERATION OF COMPONENTS..................................................................................................16
2.5.5 PRECAUTIONS TO TAKE BEFORE WORKING WITH HIGH PRESSURE GAS / SAFETY
CONSIDERATIONS.....................................................................................................................................17
2.6 STORAGE AND SHIPPING...................................................................................................................18

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page II
3. OPERATION..................................................................... 19
3.1 OPERATING PRINCIPLE......................................................................................................................19
3.2 OPERATIONAL FUNCTIONS................................................................................................................21
3.2.1 SETTING INLET SUPPLY PRESSURE, TEST INLET SET REGULATOR ADJUSTMENT.......................21
3.2.2 ROUGH PRESSURE GENERATION/CONTROL, INLET AND OUTLET VALVE OPERATION ................21
3.2.3 FINE PRESSURE ADJUSTMENT, PDVV (+) AND (-) VALVE OPERATION .............................................22
3.2.4 CONNECTING A DEVICE UNDER TEST....................................................................................................23
3.2.5 PURGING LIQUIDS FROM THE DUT/SYSTEM UNDER TEST .......................................................23
3.3 TYPICAL OPERATING SEQUENCE FOR A COMPLETE CALIBRATION OR TEST..........................24
4. MAINTENANCE AND ADJUSTMENTS .................................. 25
4.1 OVERVIEW............................................................................................................................................25
4.2 PURGING THE SUMP (DRAIN).............................................................................................................26
4.3 CLEANING/REPLACING PDVV DRIVE AIR FILTER ELEMENT ................................................26
4.4 ILLUSTRATED PARTS BREAKDOWN.................................................................................................27
5. TROUBLESHOOTING ........................................................ 31
6. APPENDICES................................................................... 33
6.1 GPC1 TERMS, LABELS, AND SYMBOLS (GLOSSARY) ....................................................................33
6.2 WARRANTY STATEMENT....................................................................................................................34

TABLES & FIGURES
Page III © 2007 DH Instruments, a Fluke Company
T
TA
AB BL LE ES S
Table 1. GPC1-10000-AF Parts List............................................................................................................7
Table 2. Pneumatic power (drive air) requirements...................................................................................10
Table 3. GPC1 Main Assembly Illustrated Parts Breakdown (see Figure 13)...........................................27
Table 4. GPC1 Internal Assembly Illustrated Parts Breakdown (see Figure 14).......................................28
Table 5. GPC1 troubleshooting checklist...................................................................................................31
Table 6. DHI Authorized Service Providers...............................................................................................34
F
FI
IG GU UR RE ES S
Figure 1. Front panel view ...........................................................................................................................5
Figure 2. Front and side views with dimensions..........................................................................................5
Figure 3. System schematic.........................................................................................................................6
Figure 4. Typical PGC-10000-AF system installation..................................................................................8
Figure 5. Connecting GPC1-10000-AF to RPM4/HPMS A70M/A20M-AF................................................12
Figure 6. Adapting TEST port to connect a device under test...................................................................13
Figure 7. Clean TEST1 port, sump and drain port.....................................................................................14
Figure 8. System schematic.......................................................................................................................20
Figure 9. Front panel view .........................................................................................................................21
Figure 10. PDVV plunger position indicator...............................................................................................22
Figure 11. Drain port location.....................................................................................................................26
Figure 12. PDVV drive air filter ..................................................................................................................27
Figure 13. GPC1 Main Assembly Illustrated Parts Breakdown.................................................................28
Figure 14. GPC1 Internal Assembly Illustrated Parts Breakdown.............................................................30

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page IV
N
NO
OT TE ES S

ABOUT THIS MANUAL
Page I © 2007 DH Instruments, a Fluke Company
A
AB
BO OU UT T T
TH
HI IS S M
MA
AN NU UA AL L
This manual provides the user with the information necessary to operate a GPC1-10000-AF Gas
Pressure Controller. It also includes a great deal of additional information provided to help you optimize
GPC1 use and take full advantage of its many features and functions.
FOR THOSE OF YOU WHO “DON’T READ MANUALS”, GO DIRECTLY TO SECTION 2.4 TO SET UP YOUR GPC1.
THEN GO TO SECTIONS 2.5.5 and 3.3. THIS WILL GET YOU RUNNING QUICKLY WITH MINIMAL RISK OF CAUSING
DAMAGE TO YOURSELF OR YOUR GPC1. THEN… WHEN YOU HAVE QUESTIONS OR START TO WONDER ABOUT
ALL THE GREAT FEATURES YOU MIGHT BE MISSING, GET INTO THE MANUAL!
GPC1-1000-AF is usually delivered as part of an PGC-10000-AF system which also includes an
RPM4/HPMS A70M/A20M-AF reference pressure monitor and and a GB-152-AF gas booster. The
RPM4/HPMS and the GB-152 have their own Operation and Maintenance Manuals.
Manual Conventions
(Caution) is used throughout the manual to identify user warnings and cautions.
(NOTE) is used throughout the manual to identify operating and applications advice and additional
explanations.

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page II
N
NO
OT TE ES S

1. INTRODUCTION
Page 3 © 2007 DH Instruments, a Fluke Company
1
1. . I IN
NT TR RO OD DU UC CT TI IO ON N
1.1 PRODUCT OVERVIEW
The GPC1-10000-AF Gas Pressure Controller is a stand alone, pressure setting and adjusting
component intended to be used as the means of pressure control in pneumatic calibration and test
systems. GPC1-10000-AF covers the range from atmosphere to 10 000 psi (70 MPa).
GPC1 combines the versatility, speed and reliability of direct operator control with the convenience and
effort-free operation of automation. It is the standard pressure control component in a PGC-10000-AF
Pneumatic Gauge Calibrator as well as in a PG7202 piston gauge system.
The GPC1-10000-AF is typically delivered as part of a PGC-10000-AF Pneumatic Gauge Calibrator. The
PGC-10000-AF system includes a GB-152-AF gas booster and an RPM4/HPMS A70M/A20M that have
their own Operation and Maintenance Manuals.

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 4
1.2 SPECIFICATIONS
Electrical Power Requirements: None
Pneumatic Power Requirements: Clean, dry, low flow, compressed gas. Max flow 200 sccm
(<0.01 scfm):
Working P Drive Air P
- 750 psi (5 MPa): 45 psi (300 kPa)
- 7 500 psi (50 MPa): 87 psi (600 kPa)
- 10 000 psi (70 MPa) 100 psi (700 kPa)
High Pressure Supply: Not to exceed 10 000 psi (10 MPa)
Operating Temperature Range: 10 to 35 °C
Weight: 24 kg (53 lb)
Dimensions: 21.5 cm H x 30 cm W x 53.5 cm D (8.5 in. x 11.8 in. x 21.1 in.)
Pressure Range: 0 to 10 000 psi (70 MPa)
Operating Medium: Any non-corrosive gas
Pneumatic Power Connection: 1/4 in. NPT F
Test Connections: (3) DH500 F test connections ((1) left, rear side and (2) on top)
DH500™ is a gland and collar type fitting for ¼ in.
(6 mm) coned and left hand threaded tube. DH500 is equivalent to AE
F250C, HIP HF4, etc.
Pneumatically Actuated Variable
Volume (PDVV) Displacement: 2 cc (0.12 in3)
PGC-10000-AF SYSTEM
Temperature: Operating: 18 to 28 °C
Storage: -20 to 70 °C
Relative Humidity: Operating: 15 to 70%RH (non-condensing)
Storage: 10 to 90%RH (non-condensing)

1. INTRODUCTION
Page 5 © 2007 DH Instruments, a Fluke Company
1.3 INSTRUMENT LAYOUT
1.3.1 FRONT PANEL
The front panel provides all of the controls and indications needed to set and adjust pressure.
Figure 1. Front panel view
1.3.2 OVERALL DIMENSIONS
Figure 2. Front and side views with dimensions
1. PDVV drive air/test gas pressure
gauge
2. PDVV plunger position indicator
3. Test inlet pressure gauge
4. Test inlet pressure regulator
5. Test inlet valve knob
6. PDVV increase fast and
slow buttons
7. PDVV decrease fast and slow
buttons
8. Test outlet valve knob

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 6
1.3.3 SYSTEM SCHEMATIC
1. High pressure gas SUPPLY connection
(left lateral)
2. Supply accumulator
3. Supply filter (not shown)
4. TEST INLET gauge
5. TEST INLET SET regulator
6. TEST1 port (rear top)
7. TEST2 port (left lateral)
8. TEST3 port (front top)
9. DRAIN port (right lateral)
10. Test liquid collection sump
11. Sump filter (not shown)
12. TEST INLET valve
13. Fast and slow PDVV increase valves
14. Fast and slow PDVV decrease valves
15. TEST OUTLET valve
16. Pneumatically driven variable volume
(PDVV)
17. PDVV drive pressure gauge
18. PDVV plunger position indicator
19. PDVV DRIVE air connection (right lateral)
20. DRIVE air filter
Figure 3. System schematic

2. INSTALLATION
Page 7 © 2007 DH Instruments, a Fluke Company
2
2. . I IN
NS ST TA AL LL LA AT TI IO ON N
2.1 UNPACKING AND INSPECTION
2.1.1 REMOVING FROM PACKAGING
GPC1 is delivered, along with its standard accessories, in a corrugated container with
corrugated and polyurethane inserts to hold it in place.
Remove GPC1 and its accessories from the shipping container and remove each item from
its protective plastic bag.
Retain the specialized packing and shipping materials in case the GPC1 needs to be
shipped.
2.1.2 INSPECTING CONTENTS
Check that all items are present and have NO visible signs of damage.
Verify the items received against the parts list in Table 1.
Table 1. GPC1-10000-AF Parts List
DESCRIPTION PART #
GPC1-10000-AF instrument 402190
ACCESSORIES:
1 Mat, Top Surface Protection 123481
1 ea. PGC-10000-AF Documentation Disk including:
•RPM4/HPMS A70M/A20M-AF Operation and
Maintenance Manual, p/n 550136
•GPC1-10000-AF Operation and
Maintenance Manual, p/n 550135
•GB-152-AF Operation and Maintenance
Manual, p/n 550137
402189
(Shipped with
RPM4/HPMS accessories
in transport case)
1 Wrench, Open End, 5/8 in. 103044
INTERCONNECTIONS KIT: 402165
2 ea. Nipple, 2.75 in. (70 mm), DH500 100207
1 ea. Nipple, 6 in. (152.4 mm), DH500 100208
1 ea. Nipple, 12 in. (30.5 mm), DH500 100209
1 ea. Elbow, 12 in. (30.5 mm), DH500 123136
1 ea. Adaptor, DH500 F x 1/8 in. NPT M 102819
1 ea. Adaptor, DH500 F x 1/4 in. NPT F 102820
1 ea Adaptor, DH500 F x 1/4 in. NPT M 102889
1 ea Adaptor, DH500 F x AN4 M 102888
3 ea. Plug, DH500 100285
3 ea. Collar, DH500 101201

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 8
2.2 PGC-10000-AF SYSTEM
GPC1-10000-AF is usually delivered as the pressure generation and control component of a PGC-10000-
AF Pneumatic Gauge Calibration System (see Figure 4). The PGC-10000-AF system includes:
•RPM4/HPMS A70M/A20M-AF: Reference pressure monitor and high pressure mounting system used
as the pressure measuring reference of the calibration system.
•GPC1-10000-AF: Gas pressure controller used to set and adjust high pressure gas in the calibration
system.
•GB-152-AF: Gas booster package used to supply gas pressure up to 10 000 psi (70 MPa) to the
GPC1-10000-AF pressure controller.
Each of the three components of the PGC-10000-AF system has its own Operation and Maintenance
Manual and individual setup and start up instructions. Figure 4 shows the typical setup configuration of
the complete PGC-10000-AF system.
Figure 4. Typical PGC-10000-AF system installation
CAUTION
GPC1-10000-AF
Gas Pressure Controller
RPM4/HPMS A70M/A20M Reference Pressure Monitor
GB152-AF
Gas Booster
GB152-AF
Drive Air Control Kit
Remote ENTER
Footswitch
High pressure
instrument gas
connection
Drive air
connection
CAUTION
GPC1-10000-AF
Gas Pressure Controller
RPM4/HPMS A70M/A20M Reference Pressure Monitor
GB152-AF
Gas Booster
GB152-AF
Drive Air Control Kit
Remote ENTER
Footswitch
High pressure
instrument gas
connection
Drive air
connection

2. INSTALLATION
Page 9 © 2007 DH Instruments, a Fluke Company
2.3 SITE REQUIREMENTS
The GPC1-10000-AF is typically delivered as part of a PGC-10000-AF Pneumatic Gauge Calibrator (see
Section 2.2). The PGC-10000-AF system also includes a GB-152-AF gas booster and an RPM4/HPMS
A70M/A20M that have their own Operation and Maintenance Manuals.
When selecting and preparing a site to setup a GPC1 system, the following should be considered:
•Bench stability: GPC1 weighs about 24 kg (53 lb). The RPM4/HPMS A70M/A20M-AF weighs
about 12 kg (26 lbs). Consider the combined weight of all components, including possible items to be
tested, when selecting a bench.
•Footprint: The PGC-10000-AF system requires a minimum bench space approximately 33 in. (84
cm) wide and 24 in. (60 cm) deep.
•Location of other components: Plan the space required and a convenient layout for the complete
system in which GPC1 is the pressure control component.
•If the GPC1 is to be used with an RPM4/HPMS, the GPC1 accessories include the hardware
necessary for setting up in a standard configuration (see Sections 2.2, 2.4.3, 2.4.4). The
RPM4/HPMS is normally placed to the left of the GPC1 and connected to the TEST2 port.
•DRAIN port: Provide access to the DRAIN port on the right, rear side of the GPC1. This port needs
to be accessed regularly to purge contaminants from GPC1.
•High pressure supply: Plan the connection from the high pressure gas supply to GPC1. If the high
pressure is being supplied by a GB-152-AF gas booster (included in GPC-10000-AF Pneumatic
Gauge Calibrator), interconnecting hardware to connect the booster output to the GPC1 SUPPLY
port is included with the booster (see the GB-152-AF Operation and Maintenance Manual).
•Drive air supply: Plan the PDVV drive air supply. The maximum drive air supply required is 100 psi
(700 kPa) but may be lower depending on the maximum test pressure to be adjusted (see Section
2.4.2, Table 2). The drive air PDVV DRIVE AIR port is on the right, rear side of GPC1. The
connection is 1/4 in. NPT female. This is usually supplied from an N2 or Air “K” bottle.
•System interconnections: Plan the interconnections between GPC1 and any other components in
the system. Minimizing the volume and maximizing the mass of all interconnecting elements will
reduce pressure generation and stabilization time (see Section 2.2).
ALWAYS use external tubing and fittings rated for pressures equal to or greater than the maximum
pressure which GPC1 will be used to control.
DH500 F fittings are delivered with disposable, orange, plastic dummy plugs installed. These are NOT
intended to hold high pressure. They should be removed and replaced with appropriate fittings or stainless
steel plugs before high pressure operation. Each dummy plug carries a DH500 collar. Remove and retain the
collar for use in connecting to the fitting.

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 10
2.4 INITIAL SETUP
Before setting up GPC1, see Section 2.3 for general information on site requirements.
To prepare a GPC1 for check out and operation:
Set up GPC1 (see Section 2.4.1).
Connect drive air (see Section 2.4.2).
Connect the high pressure supply (GB-152-AF) (see Section 2.4.3).
Make test pressure interconnections, including connecting the reference pressure measuring device
(RPM4/HPMS A70M/A20M-AF) (see Section 2.4.4).
2.4.1 SET UP GPC1
To set up GPC1 proceed as follows:
Place GPC1 on the site table in the proper orientation with the front panel controls
conveniently accessible.
Install the mat delivered with the GPC1 accessories on the top, front surface of the
GPC1.
2.4.2 CONNECT PNEUMATIC POWER (DRIVE AIR)
GPC1 requires pneumatic power to drive its pneumatically driven variable volume (PDVV).
The drive air requirements are summarized in Table 2. Since the flow requirements are very
low and cleanliness of the gas is important, the supply is usually regulated Nitrogen or
instrument grade air from a “K” bottle.
Connect the pneumatic pressure source to the 1/4 in. NPT F connection labeled PDVV
DRIVE on the right side of GPC1 housing. Use Teflon™tape or another thread sealant to
minimize leakage.
GPC1 must be supplied with NON-LUBRICATED drive air. The internal components are
permanently lubricated. The oil in lubricated air can contaminate the small diameter tubing inside
GPC1 and lead to erratic behavior requiring difficult and costly cleaning.
Table 2. Pneumatic power (drive air) requirements
INTERNAL
COMPONENT DRIVE AIR PRESSURE NEEDED MINIMUM FLOW LUBRICATION REQUIRED CLEANLINESS CRITICAL
PDVV For 750 psi (5 MPa):
Supply 45 psi (300 kPa)
For 7 500 psi (50 MPa):
Supply 87 psi (600 kPa)
For 10 000 psi (70 MPa):
Supply 100 psi (700 kPa)
< 0.01 scfm (200 sccm)
* This is very low flow. No Yes

2. INSTALLATION
Page 11 © 2007 DH Instruments, a Fluke Company
2.4.3 CONNECT HIGH PRESSURE GAS SUPPLY (GB-152-AF)
GPC1 requires a high pressure gas supply of 10 000 psi (70 MPa) or lower. If the GPC1 is
part of a PGC-10000-AF Pneumatic Gauge Calibrator, the high gas pressure supply is
provided by a GB-152-AF gas booster. Hardware to connect the booster output to the GPC1
SUPPLY port is supplied with the booster. See the GB-152-AF Operation and Maintenance
Manual for instructions on making the connection using the GB-152-AF interconnections kit.
The high pressure gas supply is connected to the GPC1 SUPPLY port. The SUPPLY port is
a DH500 female (DH500 is equivalent to AE F250C, HIP HF4, etc.).
Do not connect pressure greater than 10 000 psi (70 MPa) to the GPC1 SUPPLY port.
Highly pressurized gas can be extremely hazardous. Before applying pressure to GPC1
and/or the system connected to it, be sure that all pressure vessels and connections are rated
for the pressure levels that will be applied and that all connections have been properly tightened
(see Section 2.5.5). Ensure that the GPC1 TEST INLET SET regulator is fully backed off and its
INLET valve is closed (see Section 2.5.1).
DH500 F fittings are delivered with disposable, orange, plastic dummy plugs installed.
These are NOT intended to hold high pressure. They should be removed and replaced with
appropriate fittings or stainless steel plugs before high pressure operation. Each dummy plug
carries a DH500 collar. Remove and retain the collar for use in connecting to the fitting.

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 12
2.4.4 MAKE TEST PRESSURE INTERCONNECTIONS
2.4.4.1 CONNECT THE SYSTEM REFERENCE PRESSURE
MEASURING DEVICE (RPM4/HPMS A70M/A20M-AF)
GPC1-10000-AF is delivered with an interconnections kit (see Section 2.1.2,
Table 1). This kit includes a 12 in. (305 mm) DH500 elbow intended to connect
GPC1 to an RPM4/HPMS A70M/A20M-AF reference pressure monitor which is
included in the PGC-10000-AF Pneumatic Gauge Calibrator. See Figure 5 for
the recommended layout. The setup assumes that one of the TEST ports on the
top of GPC1 or an open leg of the interconnecting tee will be used to connect to
the device or system under test.
1. RPM4/HPMS TEST port 5. GPC1 TEST1 port
2. 12 in. DH500 elbow (in GPC1 interconnections kit) 6. GPC1 TEST3 port
3. GPC1 TEST2 port 7. RPM4 A70M/A20M-AF
4. GCP1-10000-AF
Figure 5. Connecting GPC1-10000-AF to RPM4/HPMS A70M/A20M-AF
2.4.4.2 CONNECTING TO A DEVICE UNDER TEST
In a PGC-10000-AF system, the device under test (DUT) is intended to be
connected to one of the TEST connections on the top surface of the GPC1. See
Section 2.4.4.3 concerning cleanliness considerations before connecting a DUT.
The TEST connections on the top of the GPC1 are DH500 F (DH500 is a gland
and collar type fitting for 1/4 in. (6 mm) coned and left hand threaded tube.
DH500 is equivalent to AE F250C, HIP HF4, etc.).

2. INSTALLATION
Page 13 © 2007 DH Instruments, a Fluke Company
GPC1 TEST port
DH500 nipple with
glands and collars
installed
Adaptor, DH500 F to
1/4 in. M, 1/4 in. F,
1/8 in. M, AN4 M
or other
Connection to DUT
GPC1 TEST port
DH500 nipple with
glands and collars
installed
Adaptor, DH500 F to
1/4 in. M, 1/4 in. F,
1/8 in. M, AN4 M
or other
Connection to DUT
The PGC-10000-AF fittings accessory kit includes adaptors to convert the DH500 F
TEST connection to other commonly used fittings. The adaptors are made by
combining a DH500 F adaptor with a 2.75 in., 6 in. or 12 in. DH500 nipple. The
nipple/adaptor assembly is then
installed on the DUT. Finally, the
nipple/adaptor/DUT assembly is
installed on the GPC1’s DH500 F TEST
connection. Note that the gland nut on
the DH500 nipple assembly can be
tightened into the DH500 F connection
without rotating the nipple or DUT.
Adaptors included in the GPC1
accessory kit are:
•1/4 in. NPT F
•1/4 in. NPT M
•1/8 in. NPT M
•37 degree flare M (AN4 M)
Figure 6. Adapting TEST port to connect a
device under test
Highly pressurized gas can be extremely hazardous. Before applying pressure
to GPC1 and/or the system connected to it, be sure that all pressure vessels and
connections are rated for the pressure levels that will be applied and that all
connections have been properly tightened (see Section 2.5.5).
2.4.4.3 CLEANLINESS CONSIDERATIONS WHEN CONNECTING DUTS
Special design features are included in GPC1 to avoid excessive contamination
of GPC1 if liquids should return from a DUT to which it is connected.
For this purpose, GPC1 is equipped with an inclined manifold that serves as a
liquid sump (see Figure 77). A DRAIN port is provided at the low point so that
the sump can be easily purged. The TEST ports all go directly through the sump
so that any liquids returning from the system under test will collect there rather
than being carried throughout GPC1. The top, rear TEST1 port is supplied
directly from the SUPPLY port so that it is always filled with clean gas from the
supply. Even if liquids are present in the sump, they will not enter the TEST1
port as gas that may have been exposed to liquids never flows into the port from
GPC1
(see Figure 77).
Below are recommendations for use of the three (3) GPC1 TEST ports.
If there is no risk of return of liquids from the devices that will be connected to
GPC1, it is not necessary to discriminate TEST port usage.
•TEST1 port (top, rear): This port is supplied directly with clean gas from the
SUPPLY port and should be reserved for connecting devices that are known
to be liquid free and must be protected from any risk of liquid contamination.
If no such devices will be connected to GPC1, then this port may be used as
any TEST port would.
•TEST2 port (left lateral): Normally, the system reference pressure
measurement device is connected here. In a PGC-10000-AF Pneumatic
Gauge Calibrator, this is an RPM4/HPMS A70M/A20M-AF.

GPC1-10000-AF™OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 14
•TEST3 port (top, front): This port is connected to the lowest point on the GPC1
sump and should be used for connecting test devices that may contain liquids.
By design, the TEST1 port is always filled directly with clean gas from the
SUPPLY port and exhausted away from the port. Do not break the TEST1 port
connection under pressure. If unclean gas is present in GPC1, flowing out the TEST1
port will contaminate the port.
1. High pressure gas SUPPLY connection 5. TEST3 port (top, front)
2. TEST INLET SET regulator 6. DRAIN port
3. TEST1 port (top, rear) 7. TEST INLET valve
4. TEST2 port (left lateral) 8. TEST OUTLET valve
Figure 7. Clean TEST1 port, sump and drain port