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ML548_ES | v3
Expo Technologies UK
T: +44 (0) 20 8398 8011
Expo Technologies US
T: +1 (440) 247 5314
Expo Technologies China
T: +86 532 8906 9858
• The adjustment is sensitive, and it is recommended that a
1
/
4
turn (maximum)
adjustments are applied between tests.
Re-calibration of the Pressure Sensors
The brass nozzle on the sensor is sealed into position using Loctite thread sealant. If the thread has seized up,
remove to a safe area and heat slightly to soften prior to making any adjustment. This prevents potential
damage to the brass of the nozzle.
• Disconnect pipe work from the sensor, including pipe located below the sensor.
• Remove sensor by unscrewing anti-clockwise.
• The nozzle is located under the sensor.
• The adjustment is sensitive, turn the nozzle in
1
/
8
of a turn step.
• Turn clockwise to reduce the pressure setting and anti-clockwise to increase.
• Replace sensor, screwing clockwise.
• Reconnect all pipe work.
Orifice Plate
Allen Screw and Lock NUT
Removing the small cover plate
to set the RLV opening pressure
