Filter
Top Products
Model TS420
13
Figure 11, Calibration Kit with Bottle
6. Screw on TS420 sensor cap.
7. Apply power to the unit and allow the sensor to stabilize prior to initial calibration. The
stabilization time should be at least one (1) hour for all sensors.
8. Calibrate new sensor (see Section 4.3).
NOTE - The TS420 will stay in fault anytime the sensor is removed. Calibration is required to
reset the TS420.
4.6 Sensor Care and Maintenance
If power is removed from the TS420 for periods greater than one hour, the sensor should be
removed from the TS420 and placed in the original storage container shipped with the sensor.
Storage of the sensor in the original container guards against sensor contamination from
solvents, lubricant humidity, etc.
NOTE - Do not short the sensor pins.
In the case of long intervals of non-use, the sensors should be stored as described above in a
cool, dry place, preferably refrigerated between 0 and 20°C.
In all cases, after the sensor has been removed from the TS420, the cap should be replaced on
to the TS420 body and the gas port taped off to prevent any corrosion damage to the exposed
socket pins.
4.7 Fault Codes & The Remedies
The TS420 has self-diagnostics incorporated into the microprocessor program. If a fault is
detected, the output signal will drop to 3.5mA and the MODE LCD will be flashing to indicate
the fault.
When a calibration fault has occurred and has been corrected, the unit will stay in fault until it
has been successfully calibrated.
The Fault Codes are:
Fault (No Power): Neither LCD will be on. Output signal will be 0.0mA.
Remedy: Check wiring, ensure power is applied to unit.
Fault (System): The “MODE” LCD will be flashing. Output signal will be 3.5mA.
Remedy: Attempt recalibrating the detector. If the fault persists, replace the sensor and after
sensor has stabilized (one (1) hour minimum). Recalibrate. If fault still persists, contact factory
or your sales representative.