STATUS SCIENTIFIC CONTROLS
Installation, Commissioning & Routine Gas Testing
FGD10B Pellistor Gas Detector
TD18/008
Issue:
10
Change Note:
1904
Page 19
4.4.
Sensor Span
Always zero the sensor prior to performing a span operation.
Fig 2
Apply a known concentration of gas (applicable to sensor type) at a
flow rate of between 500 and 1000 cc/min. Allow time for the sensor
to respond.
Press the Span button
span
and hold for a minimum of 5 seconds
to span the sensor.
Turn off and disconnect the calibration gas.
Note: The calibration gas level must match with the level stored in
the instrument. If the gas level is does not match then the
keypad must be used to set the correct gas level.
Span
