Heath Consultants Hi Flow Sampler - Manual (Page 57)

Hi Flow

Sampler Troubleshooting
Instruction 0055-9017 57
6 Symptom 7 Probable Cause & Remedy
“Check Zeroing Bypass” message
appears at bottom of display.
The ESC key was pressed during startup, thus bypassing the normal sensor
zeroing process. Although the instrument will operate under this
condition, no leak rate tests should be made because of the potential
inaccuracy of the sensor channels.
“Check Background Greater Than
Leak” message appears at bottom
of display.
The measured background gas level is greater than the measured leak gas
concentration. Make sure the background gas sample hose is not
positioned too close the leak source.
“Low Battery” message appears
at bottom of display.
Battery voltage is below 4.0 volts. Recharge battery pack per Section 4.2.
7.1 Error Codes in Saved Test Records
When saved test records are sent to a personal computer and later viewed in a
spreadsheet program (refer to Section 2.16 Importing Saved Data into a Spreadsheet),
Field 18 “Error Codes” in the saved records contains letter-codes that identify problems
that have occurred during that particular test. Refer to Table 5-2 for a listing and
description of these codes.
TABLE 5-2. FIELD 18 ERROR CODES
Error
Code
Description
A Background gas sample pump blocked.
B Leak gas sample pump blocked.
C The background gas sensor needs calibrated at 2.5% and/or 100% CH
4
.
D The leak gas sensor needs calibrated at 2.5% and/or 100% CH
4
.
E The instrument failed to zero the background gas sensor during start up.
F The instrument failed to zero the leak gas sensor during startup.
G The user pressed the ESC key during start up before the sensors had a chance to completely zero.
H The leak rate measurement #1 – #2 calculation failed.
I The measured background gas level was greater than the measured leak source gas level. (This is an
indication of improper equipment setup.)
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