Heath Consultants Hi Flow Sampler - Manual (Page 38)

Operation Hi Flow

Sampler
38 Instruction 0055-9017
Message Explanation
Check Background Calibration Error – The background-gas sensor needs calibrated. Refer to Section 5.2.
Check Leak Calibration
Error – The leak-gas sensor needs calibrated. Refer to Section 5.2.
Check Background Offset Error – The background-gas sensor did not properly zero during startup. Refer
to Section 5.2.
Check Leak Offset Error – The leak-gas sensor did not properly zero during startup. Refer to
Section 5.2.
Check Zeroing Bypassed Error – The ESC key was pressed during start up, thus bypassing the normal
sensor-zeroing process. Refer to Section 5.2.
Check Leak Rate Difference Error–The calculated leak rate difference between measurements #1 and #2
during an automatic or manual leak test was greater than 100%. Refer to
Section 5.2.
Check Background Greater
Than Leak
Error–The measured background gas level was greater than the measured leak
gas concentration. Refer to Section 5.2.
Sample Time The amount of time that a leak rate measurement has been in progress.
Purging Sensors The instrument automatically turns on both sensor pumps to purge the
background-gas and leak-gas sensor chambers. This action occurred because
during an idle period (blower not running) or during shutdown the instrument
has detected that more than 50 ppm of natural gas is present in the sensor
chamber(s).
Low Battery Error–Battery voltage has fallen below 4.0 volts. Refer to Section 5.2.
∇ ∇ ∇