Azbil MCB10A, Руководство пользователя

Страница: 102 / 114

Operation using the data setting device Azbil Corporation
5-54 Model MCB10A
5-8-2 : 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 non-critical errors
Error
code
Error content Action LCD display
Err-12 Upper/lower limit
alarm set error
HI < LO is set.
Set HI>LO.
Err - 12
SETTING ERROR
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 - 21
SPAN ERROR
OVER 12 m/s
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 - 22
PULSE WEIGHT
SETTING ERROR
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 - 23
PULSE WIDTH
OVER DUTY 70%