Impact / Impact Pro / Impact Pro IR Operating Instructions
75
Number Message Action or Reason
23
Switch on/off to reset Caused by an unexpected switch off, e.g. poor or
intermittent battery contacts. Switch off instrument
and switch on again.
24
Please recharge or replace batteries Insufcient battery voltage to operate the Enforcer.
Recharge battery or replace the battery pack.
25 Calibration required. Recalibrate or t new cartridge.
26
See manual Operating temperature specification exceeded.
Operate instrument within its specication.
27
See manual Operating temperature specification exceeded.
Operate instrument within its specication.
28
Insert valid cartridge Cartridge has been removed while instrument is still
switched on. Switch off and t cartridge.
29 Communications error Check connections to Base Station.
30 Time/date not set Set clock using PC software
31
Event log nearly full. Clear log to reset. 20% or less remaining. When full the instrument will
start overwriting the oldest data. Download the log to
retain oldest data.
32
Gas log nearly full. Clear log to reset. 20% or less remaining. When full the instrument will
start overwriting the oldest data. Download the log to
retain oldest data.
33
Cal log nearly full. Clear log to reset. 20% or less remaining. When full the instrument will
start overwriting the oldest data. Download the log to
retain oldest data.
34
See manual Memory error. A sensor parameter is out of the
permitted range.
35 Insert valid cartridge Memory fault. Incorrect format.
36
See manual Memory error in alternative language. Instrument will
revert to English.
50
Switch on/off to reset An electronics fault has occurred.•
One of the sensors has detected a gas that has •
caused a large negative cross-sensitivity.
51
Calibration required Cell is producing an excessive negative reading.
Recalibrate.
52 See manual Sensor overrange. Switch instrument on and off
53
Calibration required Flammable sensor has been exposed to more than
100ppm H2S. Recalibrate.
54
Low O2 – am inaccurate Insufcient oxygen for the ammable sensor to operate
accurately. Recalibrate or t new cartridge.
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