OPERATING INSTRUCTIONS FOR DIRT/MOISTURE TRAP
MODEL: P5531
Fluke Calibration, 6920 Seaway Blvd, Everett, Washington 98203, USA
Tel: 425-347-6100 www.fluke.com
January 2011 ©2011 Fluke Corporation. All rights reserved. Printed in USA.
The Dirt/Moisture Trap is designed to capture particles and moisture residue remaining in the device
under test, and prevent this from contaminating the calibration instrument that it is mounted on.
Pressure Connection:
Lower: 3/8” BSP / Upper: 3/8” BSP (Left-Hand)
Maximum Working Pressure:
500 psi / 35 bar
Orientation:
The trap is designed to be used in the vertical position and should
be removed from the Deadweight Tester during transit.
Materials of Construction:
Stainless Steel, Acrylic and Nitrile (Buna-
N) ‘O’ ring seals.
Consumable (Repair) Parts:
Chamber ‘O’ ring, part number 3905629, 2 required.
Test Port ‘O’ ring, part number 3883397, 1 required.
Consult the factory for any additional questions.
WARNING:
This device is designed for use with PNEUMATIC SYSTEMS ONLY.
Operation:
1. Fit the trap to the test port of the deadweight tester, using the adapter supplied; ensure that a
suitable sealing method is used between the trap and the test port.
2. Connect the equipment under test to the upper port of the trap, using the standard gauge
adapters supplied with the deadweight tester, as described below.
3. Always ensure that the system is depressurized before removing the trap for inspection.
4. Periodically, dismantle and inspect the trap to prevent build-up of moisture and particulate
contamination.
Cleaning:
1. Unscrew the top section, releasing the central aluminum chamber.
2. Clean the components
– DO NOT USE SOLVENTS on the ‘O’ rings or acrylic chamber, as
damage may occur; wipe clean with a soft cloth or tissue paper.
3. Reassemble ensuring that all seals are in the correct location.
