7 SERVICE
7.1 Warranty
The quality of design and manufacture included in all Status Scientific Controls Instruments
ensure a long and trouble free life.
In the unlikely event of a piece of our equipment failing within the first twelve months following
delivery, Status Scientific will repair or replace any faulty parts, free of charge, providing that the
equipment has not been misused.
7.2 Commissioning and Service
The MCU and FGD Sensor Heads are fully tested prior to delivery. However, after installation we
strongly recommend that full system testing and commissioning be carried out. Status Scientific
Controls Service personnel are best equipped to perform the relevant tests and commissioning
and will be able to offer advice regarding installation faults.
Commissioning involves: Testing of all system wiring
Software configuration for each channel
Calibration of all channels and detector heads
Operational checks on all detecting channels used.
7.3 Sensor Replacement
Sensors have a finite life; Pellistors have an expected life span in excess of two years, whilst
electrochemical sensors have an expected life span of approximately two years.
All of the Status Scientific detector heads have push-fit sensors to aid on-site replacement. The
different sensor designs dictate mounting orientations to minimise possibilities of incorrect
installation.
Sensor Removal and Refitting
a) Inhibit the channel at the MCU (performed from the keypad).
b) Disconnect power to the head by unplugging the screw terminal connector on the Input
Module associated with that channel (within the MCU control unit).
c) Release the grub screw situated on the stainless steel sensor housing.
d) Unscrew the sensor housing cover.
e) Unplug the sensor assembly and ensure the new assembly is identical.
f) Push in the new sensor assembly.
g) Refit the sensor housing cover and tighten the grub screw.
h) Allow the sensor to stabilise (1-2 hours for toxic, 1-2 mins for flammable).
i) Calibrate the head.
j) Enable the channel at the MCU.
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