Non-critical error
Non-critical failures will not seriously affect electromagnetic flowmeter operation.
When an error occurs during operation and is regarded as a non-critical problem by the
converter self-diagnostics, the output will not burn-out and the electromagnetic
flowmeter will continue to output the measured value.
If a wrong setting is found, an error message is displayed for a second, and then the
screen set wrongly is displayed.
Error code of set errors
Error
code
Error content Action LCD display
Err-12 Upper/lower limit alarm
set error
HI < LO is set.
Set HI>LO.
Err-21 Span is set to 12 m/s or
more.
Check the settings of flow
rate range and detector
information (bore
diameter and detector
type).
Err-22 Pulse frequency is too
large or too small.
The flow rate range unit
system is different from
the pulse unit system.
Example:
SPAN m
3
/h
pulse scale t/h
1. Check pulse scale.
2. Check the setting of
pulse frequency.
3. Adopt a unified unit
system.
Err-23 The pulse width is too
large.
When pulse frequency is
output, the duty is 70% or
more.
Check the following
settings:
1. Pulse width
2. pulse scale
3. Span
Err - 12
SETTING ERROR
HI<LO
Err - 21
SPAN ERROR
OVER 12 m/s
Err - 22
PULSE WEIGHT
SETTING ERROR
Err - 23
PULSE WIDTH
OVER DUTY 70%
CM2-MTG300-2001.book 78 ページ ２０１５年９月２９日 火曜日 午前１０時１４分
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