
11. Troubleshooting
45
Printer may not be compatible (DPU-H245 and DPU-201GS are
recommended).
→ Check your printer type.
20
Printer may not be connected in the right order.
→ After connecting the printer, turn on the instrument first, and
then turn on the printer.
20
Unable to printout the display.
Display is not frozen.
→ Press
key to hold the display, and then press
key to print out.
20
Unable to cancel printing.
You cannot cancel printing.
20
11.5 Digital Output Check
Problem
Possible Cause(s) / Solution(s)
Refer To
(Page No.)
Data Transfer Failure
Confirm that the RS232C cable is connected properly. Make sure
that it is not confused with the printer cable.
24
Confirm that the Baud Rate is set properly.
→ Check the instrument and printer settings.
24
Communication command may not be correct.
25
11.6 Analog Output Check
Problem
Possible Cause(s) / Solution(s)
Refer To
(Page No.)
Output Failure
Confirm that the polarity of the output terminal is correct.
27
The reading may be in HOLD mode.
27
Output appears in tiered pattern. Output is set per second.
27
Incorrect Output Value
Analog output setting may be incorrect.
27
Output value range setting may be incorrect.
27
Load impedance may be set lower than the specified value.
→
Load impedance must be set to 5K Ω and over.
27
11.7 Calibration Check
Problem
Possible Cause(s) / Solution(s)
Refer To
(Page No.)
[-ERR] appears during the CO
SPAN calibration.
Output level of CO sensor may be exceeded the normal range or
the sensor is damaged. Contact your local distributor for repair.
* The sensor life is 1-1.5 year.
(Although SPAN calibration is not available when output level
is low, it is possible to take a measurement using existing
calibration value.)
38
[-ERR] appears during the CO
2
SPAN calibration.
Output level of CO
2
sensor may be exceeded the normal range or
the sensor is damaged. Contact your local distributor for repair.
(Although SPAN calibration is not available when output level is
low, it is possible to take a measurement using existing
calibration value.)
38
Summary of Contents for 2212
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