Fluke MPC1-D-1000, MPC1-D-30000 User Manual
©2000 DH Instruments, Inc.
MPC1-D-1000/MPC1-D-3000
Manual Pressure Controller
for Differential Pressure
User’s Manual
MPC1-D User’s Manual
©2000 DH Instruments, Inc.
Manual Conventions
(Caution) is used in throughout the manual to identify user warnings and cautions.
(NOTE) is used throughout the manual to identify operating and applications advice and
additional explanations.
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.
© 2000 DH Instruments, Inc. 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, Inc., 4765 East Beautiful Lane, Phoenix, AZ 85044-5318, USA.
DH Instruments makes sincere efforts to ensure the 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, MPC1, MPC1-D. PG7000, RPM3 are trademarks, registered and otherwise, of
DH Instruments, Inc.
Document No. 550119
000606
Printed in the USA
MPC1-D User’s Manual
Page i ©2000 DH Instruments, Inc.
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TABLE OF CONTENTS................................................................................ i
TABLES.................................................................................................... ii
FIGURES .................................................................................................. ii
1. INTRODUCTION .................................................................................... 1
1.1 PRODUCT OVERVIEW .............................................................................................................................1
1.2 LOCATION OF THE COMPONENTS........................................................................................................1
1.3 SPECIFICATIONS .....................................................................................................................................2
1.4 DIMENSIONAL SCHEMATICS..................................................................................................................3
2. INSTALLATION .....................................................................................5
2.1 UNPACKING AND INSPECTION..............................................................................................................5
2.2 SITE REQUIREMENTS..............................................................................................................................5
2.3 INITIAL SETUP..........................................................................................................................................5
3. OPERATION ......................................................................................... 7
3.1 GENERAL OPERATING PRINCIPLES AND INFORMATION...................................................................7
3.1.1 OVERVIEW ........................................................................................................................................................7
3.1.2 VALVES .............................................................................................................................................................7
3.1.3 VARIABLE VOLUME (VV).................................................................................................................................8
3.1.4 PRESSURE GAUGE..........................................................................................................................................9
3.2 SETTING ZERO LINE PRESSURE (VENTED).........................................................................................9
3.3 SETTING A LINE PRESSURE ..................................................................................................................9
3.3.1 INCREASING LINE PRESSURE.....................................................................................................................10
3.3.2 DECREASING LINE PRESSURE....................................................................................................................10
3.4 SETTING DIFFERENTIAL PRESSURES AT LINE PRESSURES..........................................................11
3.5 SETTING SINGLE CHANNEL PRESSURES..........................................................................................12
3.5.1 INCREASING PRESSURE ..............................................................................................................................12
3.5.2 DECREASING PRESSURE.............................................................................................................................13
4. MAINTENANCE AND ADJUSTMENTS ................................................... 15
5. TROUBLESHOOTING .......................................................................... 17
5.1 GENERAL INFORMATION......................................................................................................................17
5.2 LEAKS.....................................................................................................................................................17
5.3 TEST PRESSURE WILL NOT CHANGE.................................................................................................18
5.3.1 TEST INLET VALVE........................................................................................................................................18
5.3.2 VARIABLE VOLUME (VV)...............................................................................................................................18
5.3.3 VENT VALVE...................................................................................................................................................19
5.4 PRESSURE CHANGES SLOWLY OR SLUGGISHLY............................................................................19
6. ANNEXES ........................................................................................... 21
6.1 PNEUMATIC SCHEMATIC......................................................................................................................21
6.2 VARIABLE VOLUME INFORMATION.....................................................................................................22
6.2.1 VARIABLE VOLUME SPECIFICATIONS........................................................................................................23
6.3 WARRANTY STATEMENT......................................................................................................................23
MPC1-D User’s Manual
©2000 DH Instruments, Inc. Page ii
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Table 1. Variable Volume Specifications...............................................................................................
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Table 2. DHI Authorized Service Providers...........................................................................................24
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Figure 1. Front Panel................................................................................................................................
1
Figure 2. Rear Panel.................................................................................................................................2
Figure 3. Side View with Dimensions .......................................................................................................3
Figure 4. Top View with Dimensions ........................................................................................................3
Figure 5. System Schematic...................................................................................................................21
Figure 6. Variable Volume Schematic ....................................................................................................22
MPC1-D User’s Manual
Page 1 ©2000 DH Instruments, Inc.
1. INTRODUCTION
1.1 PRODUCT OVERVIEW
The DHI Manual Pressure Controller for Differential Pressure (MPC1-D) provides a compact and
easy to use system for manually setting and adjusting pressures between atmosphere and 1 000 or
3 000 psi in systems where precise pressure control is required. MPC1-D is a dual configuration
designed specifically for use in setting and adjusting differential pressures at elevated line pressure.
It is the standard pressure control component for working with DHI’s PG7102 piston gauges in High
Line Differential Pressure mode. A single channel model, MPC1, is available for applications other
than differential pressures at elevated static pressures.
MPC1-D-1000 is for pressures to 1 000 psi (7 MPa), MPC1-D-3000 is for pressures to 3 000 psi
(21 MPa).
1.2 LOCATION OF THE COMPONENTS
1. Variable Volume Equalization Valve (lo side) 5. Vent Valve
2. Variable Volume (lo side) 6. Variable Volume Equalization Valve (hi side)
3. Lo Side/Hi Side Bypass Valve 7. Inlet Valve
4. Pressure Gauge (1 000 or 3 000 psi) 8. Variable Volume (hi side)
Figure 1. Front Panel
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MPC1-D User’s Manual
©2000 DH Instruments, Inc. Page 2
SUPPLY
REF HI
TEST HI
VENT
REF LOTEST LO
1 6
1. Gas Supply Connection (1/8 in. NPT) 4. Test Lo Connection (1/8 in. NPT)
2. Ref Hi Connection (1/8 in. NPT) 5. Ref Lo Connection (1/8 in. NPT)
3. Test Hi Connection (1/8 in. NPT) 6. Vent Connection (1/8 in. NPT)
Figure 2. Rear Panel
1.3 SPECIFICATIONS
Pressure Range: MPC1-D-1000: Atmosphere to 1 000 psi (7 MPa)
MPC1-D-3000: Atmosphere to 3 000 psi (21 MPa)
Pressure Supply: Equal to or greater than the maximum pressure desired
MPC1-D-1000: 1 200 psi (8 MPa) (maximum supply)
MPC1-D-3000: 3 200 psi (22 MPa) (maximum supply)
Pressure Connections: 1/8 in. NPT Female (Supply, Vent, Test Hi, Test Lo, Ref Hi, Ref
Lo)
Dimensions: 320 mm x 128 mm x 370 mm (WxHxD)
(12.6 in. x 5.0 in. x 14.6 in.) (see Section
1.4)
Weight: 9.1 kg (20 lbs.)
Due to a policy of continual product improvement all specifications are subject to change
without notice.
MPC1-D User’s Manual
Page 3 ©2000 DH Instruments, Inc.
1.4 DIMENSIONAL SCHEMATICS
All dimensions are in millimeters.
Figure 3. Side View with Dimensions
Figure 4. Top View with Dimensions
369
300
172
320
MPC1-D User’s Manual
©2000 DH Instruments, Inc Page 4 .
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MPC1-D User’s Manual
Page 5 ©2000 DH Instruments, Inc.
2. INSTALLATION
2.1 UNPACKING AND INSPECTION
The MPC1-D is delivered with the inlet valve closed, exhaust valve open and the variable volume
(VV) fully screwed in. Cap plugs cover all rear panel pressure connections.
2.2 SITE REQUIREMENTS
• Gas supply up to maximum amount for model used.
2.3 INITIAL SETUP
If a DHI PK-7100-MPCD-DIF connections kit P/N 401645 was purchased with the MPC1-D, use it to
make the MPC1-D connections. Refer to the kit’s instruction sheet.
All MPC1-D pressure connections are 1/8 in. NPT female. Therefore, a 1/8 in. NPT male adaptor is
needed to make each of the connections. NPT connections should be sealed using an appropriate
sealing tape on the threads.
Connect the SUPPLY port to a suitable source of clean, dry, non-corrosive gas.
Connect the REF HI and REF LO ports to the hi and lo reference devices. These are the Tare and
Reference PG7102s if setting up a PG7102 High Line Differential Pressure calibration system.
The Tare PG7102 is REF LO, the reference PG7102 is REF HI.
Connect the TEST HI and TEST LO ports to the device under test hi and lo sides.
The VENT port may be connected to direct vented gases if desired, but a connection is not required.
Do not plug or shut off the VENT port.
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