HTM(HPV)-20N Series
HITROL CO., LTD.
12
LED Color
and States
Control and operation state can be checked with the main LED.
LED Color and
State
According to
Operation
Operation
GREEN
On
Normal operation
Turned on and off
Auto setting
Changes and saves the detection point
Changes and saves the relay contact time
Changes the relay contact time
Sets the buildup point
RED
On
Enters the relay delay and return setting mode
Enters the detection point fine control mode
Enters the detection point setting mode
Blinking
Detection point setting error
YELLOW
Turned on and off
Threshold is reached with the detection point fine control.
Threshold is reached with the relay delay time setting.
Blinking
No factory max. and min. value settings
Use
The level switch that prevents the vibration of the tuning fork is good for most of the
bulk materials, but the following need to be taken in consideration. (Refer to page 10.)
■ Max. ambient temperature
■ Max. pressure
■ Max. particle size
■ Vibration
Maintenance
■ Maintenance
- Remove any sticky object from the device when cleaning the tank or silo.
- If the medium moves fast or the agitator works in the tank, perform regular
inspection to prevent mechanical damage to the sensor.
- It may cause sensor error and malfunction, so conduct a regular waterproofness
check.
- When measuring sticky material, check if such material grows. Remove them
regularly if any should appear.
The sticky material may cause malfunction and damage to the device.
Turn off the power of the product for maintenance.
