HT-100P Series
HITROL CO., LTD. 5
Wiring
Failure Check
& Maintenance
■ When wring of power supply, + - should be wired correctly.
■ Power source should be DC +17V ~ +40V
■ Power should be applied after completion of installation and wiring.
■ Product Check
Pressure sensor should be cleaned periodically (every 2 or 3 months) using clean water
so that the pressure sensor should not be plugged by sludge.
■ Failure Check
The level of measured object changes, but the output does not change.
▶ Check the AMP or Pressure Sensor for abnormalities.
▶ Check the capacity of the power supplied.
▶ Check the polarity of the supplied power.
▶ Check that zero, span adjustment is correct.
The output is only slightly changed for the LEVEL change of the measurement.
▶ Check the AMP or Pressure Sensor for abnormalities.
▶ Check that zero, span adjustment is correct.
▶ Check the pressure cell for abnormalities.
No change of level, but output fluctuation is present.
▶ Check the AMP or Pressure Sensor for abnormalities.
▶ Check that the measuring object is fluctuating a lot.
Output indicates full (20mA) of higher regardless of the change of level of the medium.
▶ Check the AMP or Pressure Sensor for abnormalities.
▶ Check that zero, span adjustment is correct.
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