User Manual

Pico Technology WPS500X User’s Guide
DO157-9 11
Releasing the pressure in the measurement chamber
After each measurement, some fluid will remain under pressure in the
measurement chamber. Follow the instructions below to release the pressure.
Hold the transducer over a suitable container to catch the fluid expelled from
the bleed vent.
WARNING
The fluid released from the bleed vent may be under high pressure.
Position the transducer so that the fluid released cannot cause
damage or injury.
Push-button units
Press the button to release the pressure from the chamber.
Bleed-screw units
SLOWLY loosen the bleed screw by turning it counter-clockwise. Do not remove
the screw from the transducer.
Allow the fluid to emerge from the bleed vent.
When no more fluid emerges, tighten the bleed screw.
Cleaning the measurement chamber
If you are measuring the pressure of a liquid, some of the liquid will remain in the
measurement chamber after use. To prevent cross-contamination between liquids,
or between liquids and air, you must clean the measurement chamber after use.
WARNING
DISCONNECT all pressure hoses from the transducer. DO NOT
attempt to clean the measurement chamber when the unit is under
pressure.
CAUTION
When disassembling the bleed valve for the first time, hold the
transducer over an empty container in case any loose parts drop out.