KANOMAX 3443 Digital Dust Monitor - Manual (Page 47)

6. Troubleshooting 41
6.5 Calibration Check
Symptom Possible Cause / Solution Refer to
ZERO cannot be adjusted.
(BACK GROUND)
The zero adjustment range may exceed the specified range.
If the ZERO adjustment range exceeds the standard range ± 20 counts
before shipping, it is a calibration error.
Please contact your distributor or KANOMAX service center for repair.
8
The sensitivity may be beyond the specified sensitivity adjustment range.
When the sensitivity adjustment range is beyond the range before
shipping by ±20%, it is considered as calibration error.
Please contact your distributor or KANOMAX service center for repair.
8
Sensitivity cannot be
adjusted.
(SPAN CALIBRATION)
The scattering plate or light source may be deteriorated.
Please contact your distributor or KANOMAX service center for repair.
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6.6 Analog Output
Symptom Possible Cause / Solution Refer to
There is no output.
The plug may not be firmly inserted into the output terminal.
The dedicated output cable must be used.
28
The output cable may not be inserted properly.
Output value is wrong.
The load impedance may be set lower than the specified value.
(Load impedance: 1 kΩ or higher)
28
Output value exceeds the
specified value. The instantaneous value may exceed the concentration equivalent to
10,000 CPM of the instantaneous value.
28
The response is slow. The output is updated every 1 second. 28
The output range may not be set properly.
・
0 – 1 mg/m3 range: 0-1V
・ 0 – 10 mg/m3 range: 0-1V
・ AUTO mg/m3 range: 0 – 1 mg/m3 range: 0-1V
1 – 10 mg/m3 range: 0.1-1V
・ 0 – 1,000 CPM range: 0-1 V
・ 0 – 10,000 CPM range: 0-1 V
・ AUTO CPM range: 0 – 1,000 CPM range: 0-1 V
1,000 – 10,000 CPM: 0.1 – 1 V
28
The display and the output
voltage do not match.
The CPM of analog output is instantaneous value. It differs from the
counts (integrated value) on the LCD.
28