HENGKO HT R71, Руководство пользователя

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Chapter 6 Fault Analysis and Troubleshooting
The paperless recorder adopts advanced production technology and
undergoes strict testing before leaving the factory, which greatly
improves the reliability of the instrument. Common faults are generally
caused by improper operation or parameter setting. If you find a fault
that cannot be handled, please record the fault phenomenon and
contact us in time. The following are some fault imaginations and
handling measures of this instrument in daily application.
Failure phenomenon Cause Analysis Treatment measures
The instrument does
not work when
powered on
1
）
Poor power cord contact
2
）
The power switch is not
closed
Check the power
supply
Signal display does not
match the actual
1
）
The signal setting in the
configuration is wrong 2
）
Wiring error
1
）
Checking group
state
2
）
Check the signal
line
Alarm output is not
normal
1
）
The alarm limit is set
wrongly
2
）
Alarm points are shared
by other channels
1
）
Reset the limit
value
2
）
Cancel other
alarm points
Power distribution
output encountered
problems
1
）
Wiring error between
transmitter and instrument
2
）
Multiple transmitter
power supply exceeds the
standard power distribution
of the instrument 3
）
Digital signal and analog
signal share the same
ground during power
distribution to generate
interference
1
）
Correct wiring
2
）
Use external
voltage regulator to
supply power or
return to factory to
customize the
maximum load 3
）
Use independent
power supply or
return to the factory
to customize
USB dump failed
1
）
The starting and ending
time is wrongly set
2
）
U disk format is not
correct
3
）
U disk is not compatible
1
）
Set the time
correctly
2
）
Format the U disk
to FET32
3
）
Use genuine