HF scientific MicroTSCM Streaming Current Monitor - Manual (Page 25)

MICROTSCM (07/09) Page 21
REV 2.4
10.0 Troubleshooting
10.1 Diagnostic Chart
Symptom Solutions
Analyzer Display Not Lit. 1. Make sure the unit is plugged in and turned on.
2. Make certain that the power source is providing the
correct voltage.
3. Make sure the analyzer is set for the correct voltage.
4. Check analyzer fuse.
Sensor probe not moving 1. Check the interconnect cable connection at the sensor.
2. Check the wiring of the interconnect cable on the back
of the analyzer and inside the sensor.
3. Check to ensure the probe is not jammed.
Display Response is Slow 1. Select a lower Signal Averaging period.
2. Separation between dosing and sample points too great.
Readings Different than expected 1. Sensor requires cleaning.
2. Sensor requires calibration.
3. Check Probe and Cell for wear. Replace parts as
required.
Unable to Achieve 5.3 SCU after
Calibration 1. Manually reprogram calibration as described in section
6.2 EEPROM Programming Correction.
Sensor Alarm Indication on
Analyzer 1. Check that sensor is operating correctly.
2. Check wiring connections at both the analyzer and the
sensor.
Reading Fluctuate, Unstable 1. Incomplete mixing of coagulant with sample water.
2. Sensor and or sample chamber require cleaning.
3. Check coagulate dosing operation.
Reading Doesn’t Change with a
Change in Dosing 1. Sensor may require cleaning.
2. Check sample flow to sample chamber.
3. Ensure complete coagulant mix with water.
10.2 Technical and Customer Assistance
If for any reason assistance is needed regarding this instrument please do not hesitate to
contact either the HF scientific Service Department or the HF scientific Customer Service
Department.