http://www.microcyber.cn/en
~ 34 ~
Chapter 7
Maintenance
Simple Maintenance
No.
Phenomena
Reason
Solution
1
Current output is 0
a. Power failure
b. Wire open circuit
a. Repair the power
b. Check the wire
2
Output current beyond
limit
Failure between MODBUS device and
circuit
Check MODBUS communication
3
The current is stable at
4mA.
Device in multi-point mode
Modify sub PC address in single PC mode
4
No connection.
a. Connection failure
b. Multi-point mode
a. Check loop wiring
b. Check network
5
485Power supply 24V
Power light off
a. Power failure
b. Wire open circuit
c. internal failure
a. Repair the power
b. Check the wire
c.Contact technical support
6
HART communication light
off
a. No HART Communication
b. Power failure
c. Internal failure
a. Check HART master device and HART
Modem
b. Check power supply connection
c. Contact technical support
7
485 communication light
off
a.Slave device no connection
b. Slave device failure
c. Internal failure
a. Connect slave device correctly
b.Check slave device and connection
c.Contact technical support
Daily maintenance is only for device cleansing.
Failure maintenance: Please return to factory if there is failure.
