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MPC1-1000 and MPC1-3000 User’s Manual

2

4

1 3

1.

Gas Supply Connection

2. Test

Connection

3. Vent

Connection

4. Vacuum

Connection

Figure 2

. Back Panel

1.3

SPECIFICATIONS

Pressure Range:

MPC1-1000: Vacuum to 1 000 psi (7 MPa)
MPC1-3000: Vacuum to 3 000 psi (21 MPa)

Pressure Supply:

Equal to or greater than the maximum pressure desired
MPC1-1000: 1 200 psi (8 MPa) (maximum supply)
MPC1-3000: 3 200 psi (22 MPa) (maximum supply)

Pressure Connections:

1/8 in. NPT Female (Supply, Test, Vent, Vacuum)

Dimensions:

320 mm x 172 mm x 370 mm (WxHxD)
(12.6 in. x 6.8 in. x 14.6 in.)

Weight:

5.65 kg (12.5 lbs.)

Due to the policy of continual product improvement all specifications are subject to change

without notice.

© 2001 - 2007

DH Instruments, a Fluke Company

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Содержание MPC1-1000

Страница 1: ...MPC1 1000 and MPC1 3000 User s Manual 2001 2007 DH Instruments a Fluke Company ...

Страница 2: ...ose 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 in...

Страница 3: ... POSITIVE GAUGE PRESSURE ABOVE ATMOSPHERE 7 3 3 1 INCREASING PRESSURE 7 3 3 2 DECREASING PRESSURE 8 3 4 SETTING NEGATIVE GAUGE PRESSURE BELOW ATMOSPHERE 9 3 4 1 DECREASING PRESSURE 9 3 4 2 INCREASING PRESSURE 10 3 5 SETTING ABSOLUTE PRESSURE 10 3 5 1 INCREASING PRESSURE 10 3 5 2 DECREASING PRESSURE 11 4 MAINTENANCE AND ADJUSTMENTS 13 5 TROUBLESHOOTING 15 5 1 GENERAL INFORMATION 15 5 2 LEA S 15 K 5...

Страница 4: ... Fluke Company Page ii 6 ANNEXES 23 6 1 PNEUMATIC SCHEMATIC 23 6 2 VARIABLE VOLUME INFORMATION 24 6 2 1 VARIABLE VOLUME SPECIFICATIONS 25 T TA AB BL LE ES S Table 1 Variable Volume Specifications 25 F FI IG GU UR RE ES S Figure 1 Front Panel 1 Figure 2 Back Panel 2 ...

Страница 5: ...essures between vacuum and 1 000 or 3 000 psi systems where precise pressure control is required MPC1 1000 is for pressures to 1 000 psi 7 MPa MPC1 3000 is for pressures to 3 000 psi 21 MPa 1 2 LOCATION OF THE COMPONENTS 6 3 5 2 4 1 1 Inlet Valve 2 Variable Volume 3 Equalization Valve 4 Outlet Valve 5 Pressure Gauge 1 000 or 3 000 psi 6 Outlet Selection Valve Figure 1 Front Panel Page 1 2001 2007 ...

Страница 6: ...sure Supply Equal to or greater than the maximum pressure desired MPC1 1000 1 200 psi 8 MPa maximum supply MPC1 3000 3 200 psi 22 MPa maximum supply Pressure Connections 1 8 in NPT Female Supply Test Vent Vacuum Dimensions 320 mm x 172 mm x 370 mm WxHxD 12 6 in x 6 8 in x 14 6 in Weight 5 65 kg 12 5 lbs Due to the policy of continual product improvement all specifications are subject to change wit...

Страница 7: ...unt for model used Vacuum source is necessary 2 3 INITIAL SETUP The MPC1 should be connected to a suitable source of clean dry non corrosive gas using a 1 8 in NPT male connector to supply 1 on the rear panel Using the same type connector hook up the test system to 2 vacuum source to 4 and any external venting tubing to 3 required to the corresponding connections on the rear panel See Figure 2 The...

Страница 8: ...MPC1 1000 and MPC1 3000 User s Manual 2001 2007 DH Instruments a Fluke Company Page 4 N NO OT TE ES S ...

Страница 9: ...y itself an outside supply of pressure and or vacuum is required The test inlet valve is plumbed directly to the test connection and the high pressure chamber of the VV Opening this valve regardless of the position of the equalization valve will result in an increase of pressure in the test system when pressure is applied to the valve THIS MAY RESULT IN AN OVER PRESSURE CONDITION OF THE TEST INSTR...

Страница 10: ...ill allow for equal movement forward and backward of the piston When a maximum increase or decrease of pressure is required especially at low pressures place the VV knob at the stop limit either clockwise for maximum vacuum or counter clockwise for maximum pressure The VV is designed to operate with a maximum differential pressure of 150 psi 1 MPa across the piston When differential pressures exce...

Страница 11: ...e to reach the desired pressure using the VV only proceed to Step s below p Open pressure equalization valve 3 pull valve outward OPENING THIS VALVE MAY RESULT IN A SUDDEN CHANGE IN THE TEST PRESSURE Ensure conditions are such that this either does not happen or that its effects are inconsequential q Place VV piston 2 at appropriate position see Section 3 1 3 r Open test inlet valve 1 until the ap...

Страница 12: ...Ensure conditions are such that this either does not happen or that its effects are inconsequential o Place VV piston 2 at appropriate position see Section 3 1 3 p Open test outlet valve 4 until the approximate desired pressure is reached q Close equalization valve push valve inward r Adjust VV knob until desired pressure is obtained or until the piston floats when connected to a piston gauge s To...

Страница 13: ...LT IN A SUDDEN CHANGE IN THE TEST PRESSURE Ensure conditions are such that this either does not happen or that its effects are inconsequential q Place VV piston 2 at appropriate position see Section 3 1 3 r With a vacuum source connected to the vacuum port open test outlet valve until the approximate desired pressure is reached s Close equalization valve push valve inward t Adjust VV knob until de...

Страница 14: ...ed s Close equalization valve push valve inward t Adjust VV knob until desired pressure is obtained or until the piston floats u To continue increasing pressures repeat Step p or t shown above 3 5 SETTING ABSOLUTE PRESSURE 3 5 1 INCREASING PRESSURE n Close test outlet valve 4 o Place outlet selection valve 6 to vacuum position p Set pressure below atmosphere if pressures below atmosphere are not r...

Страница 15: ... gauge Maximum differential pressure across the VV piston is 150 psi 1 MPa Pressures above 150 psi 1 MPa will automatically open the equalization valve To continue increasing pressures repeat Step w 3 5 2 DECREASING PRESSURE For small pressure changes it may be possible to reach the desired pressure using the VV only see Step r below n Open pressure equalization valve 3 pull valve outward OPENING ...

Страница 16: ...MPC1 1000 and MPC1 3000 User s Manual 2001 2007 DH Instruments a Fluke Company Page 12 N NO OT TE ES S ...

Страница 17: ...MPC1 1000 and MPC1 3000 User s Manual 4 MAINTENANCE AND ADJUSTMENTS No special maintenance or adjustments are required for the MPC1 Page 13 2001 2007 DH Instruments a Fluke Company ...

Страница 18: ...MPC1 1000 and MPC1 3000 User s Manual 2001 2007 DH Instruments a Fluke Company Page 14 N NO OT TE ES S ...

Страница 19: ...nect the unit at the test connection and plug it Establish similar conditions under which the leak was observed and determine if the leak is still present For small leaks it may be necessary to install an appropriate pressure sensing device at the test port user discretion required In some cases it is useful to perform simple leak checks on the most common outside sources before disconnecting the ...

Страница 20: ...ir replacement 5 2 1 PRESSURE INCREASE LEAK ABOVE ATMOSPHERE Only three conditions within the MPC1 can cause this type of leak 1 A damaged or improperly closed test inlet valve 1 when a pressure source is connected 2 A leaking VV piston O ring 3 A leaking or improperly closed equalization valve 3 1 is the most probable cause Check if the valve is properly closed use caution not to overtorque the v...

Страница 21: ...the leak is not present at the fittings it is most likely in the VV To confirm that the leak is in the VV remove it from the MPC1 and connect all tubing together Repeat leak check on the MPC1 If leak is gone the VV needs to be repaired q Most leaks are located in either the VV gauge filter and or in the connecting tubing including the test inlet and equalization valve It is also possible though un...

Страница 22: ... Close the equalization valve push in If the leak is gone go to Step n If the leak is still present go to Step o n If the pressure drop is gone the leak is between the equalization valve stem seal and the test outlet valve Possible sources include the low pressure side of the VV low pressure side of the equalization valve and or the fittings between the two valves Remove the top cover Remove the c...

Страница 23: ...V is below that in the test circuit Reduce the pressure in the front chamber by closing the equalization valve push in and rotate the VV knob clockwise The pressure in the test circuit will increase Wait for pressure to stabilize If pressure begins to drop check to see if the equalization valve is properly closed If pressure continues to drop open equalization valve Wait for pressure to stabilize ...

Страница 24: ...he VV the problem is with the equalization valve the VV piston O ring or the filter connected to the VV rear plate Confirm that the equalization valve is closed pushed in The VV cannot change the pressure when the equalization valve is open If pressures still cannot be changed remove the top panel and the filter Check the filter for a plugged condition clean or replace as needed If the VV still ca...

Страница 25: ...control tubes The purpose of the filters is to protect these tubes from contamination Do NOT operate the MPC1 without the active filter elements of less than a 0 5 micron rating Pressure changes can be slow if a large external volume is connected to a MPC1 This condition is compounded by a low supply pressure If the pressure changes are too slow due to a large external volume reduce the volume Pag...

Страница 26: ...MPC1 1000 and MPC1 3000 User s Manual 2001 2007 DH Instruments a Fluke Company Page 22 N NO OT TE ES S ...

Страница 27: ...MPC1 1000 and MPC1 3000 User s Manual 6 ANNEXES 6 1 PNEUMATIC SCHEMATIC Page 23 2001 2007 DH Instruments a Fluke Company ...

Страница 28: ...MPC1 1000 and MPC1 3000 User s Manual 6 2 VARIABLE VOLUME INFORMATION 2001 2007 DH Instruments a Fluke Company Page 24 ...

Страница 29: ...UME SPECIFICATIONS Table 1 Variable Volume Specifications MPC1 1000 MPC1 3000 Range Vacuum to 1 000 psi 7 MPa Vacuum to 3 000 psi 21 MPa Proof 3 000 psi 21 MPa 6 000 psi 42 MPa Burst 6 000 psi min 42 MPa 12 000 psi min 84 MPa Total Volume 3 5 cu in 57 5 cc 2 5 cu in 41 cc Revolutions for Total Volume 31 61 ...

Страница 30: ...MPC1 1000 and MPC1 3000 User s Manual 2001 2007 DH Instruments a Fluke Company Page 26 N NO OT TE ES S ...

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