HITROL HT-100F Series, Instruction Manual

Page: 11 / 12

HT-100F Series
HITROL CO., LTD. 11
User
Training
Troubleshooting
Action
Type Checks
Incorrect zero measurement range setting Reset
Offset applied Offset default
Loss of buoyancy or damage to the float Replace the float
Damaged diode of the R/I converter Replace the R/I converter
Type Checks
Incorrect span measurement range setting Reset
Offset applied Offset default
Open low cable of sensor Reconnect the sensor
Damaged diode of the R/I converter Replace the R/I converter
Type Checks
When the resistor of the sensor is seriously
damaged, resulting in a short circuit with
the pointer positioned on it
Replace the sensor PCB. (If the float is
out of the position, the output will
sharply rise or drop, leading to
measurement error.)
When the resistor of the sensor is seriously
damaged, resulting in an open circuit with
the pointer positioned on it
Replace the sensor PCB. (If the float is
out of the position, the output will
sharply rise or drop, leading to
measurement error.)
When the wire is not wound
Check if any foreign subsidence is in
the wire drum or if the spring is
damaged.
Type Checks
Temporary over-measurement (approximately 10%)
and noise output shape due to over-current caused
when a diode of the R/I converter is damaged
Replace the R/I converter.
Output Current of 4mA or Less
Hunting of the Output
Holding of the Output Current
Understand the aforementioned, and never use it to measure any liquid that
exceeds 80°C. In addition, make sure that the ambient temperature of the housing
is maintained at
−
20°C ~ +60°C.
Output Current of 20mA or More