DIGISYSTEM DSB-500D Manual de instrucciones - Página 3
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Circuit Diagram:
Always disconnect the power cord before troubleshooting.
Caution:
Trouble
Instrument inoperative
Control head can't control
the water temperature
Pump Circulator doesn't
work well
The key of PID controller
can't work
Temperature is not stable
PV value is not correct
DIGISYSTEM LABORATORY INSTRUMENTS INC.
Troubleshooting Guide
Cause
Power cord not connected to outlet.
Dead power output.
Current is overload, so the no fuse
breaker on the behind of the controller
Sensor is broken
PID controller
Heater is broken
Pump Circulator is broken
Foreign bodies blockaged the pump
Circulator
The keys has been locked
The initial setting value is not suitable
for the ambient air temperature where
the machine is located
User's calibration thermometer is
different from the factory's calibration
thermometer
Remedy
Plug instrument in..
Change to different output.
Push the button of the no fuse
breaker to reset
Replacing a sensor
Replacing a PID controller
Replacing a heater
Replacing a Pump Circulator
Sweep away the foreign bodies
Please refer to page 2, Other
functions 5. (c) to release the
lock status.
Please refer to page 2, Other
functions 4. to set auto-tuning
function to solve this problem.
Please refer to page 2, Other
functions 3 to adjust PV value
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REV.1-2017