HBK FS22SI, User Manual

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FS22SI
OPERATION
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3.3 Maintenance
3.3.1 Wear parts
HBK Optical Interrogators have wear parts (such as ventilation fans, optical connector
adapters and batteries) that require minimum running conditions to ensure a correct
operation of the equipment.
Wear parts are covered by a limited warranty as they are components that depend on the
usage and on the environmental conditions the equipment operates in, such as humidity,
temperature and dust.
A periodic maintenance should be planned and managed by the customer considering
the actual operation conditions. Warranty will only be applied to wear parts if the cause of
the defect can be clearly traced back to the material or manufacturing fault.
3.3.2 Ventilation
The FS22SI is an electronic equipment with active ventilation, meaning that it uses fans
for thermal control of the device. Fine dust particles over time can reduce the life time of
optical and electronic components leading to a general degradation of the equipment, so
it is important to prevent dust from entering the device. For that reason the interrogators
should be kept on a controlled environment, far or protected from major dust areas.
3.3.3 Optical connectors
Optical connectors of the interrogator are subject to degradation and can actually break
upon misusage (
see section 4.4.2. Broken Connector ). If this happens, the interrogator
must be sent back to HBK FiberSensing for repair.
3.3.4 Calibration
BraggMETER interrogators have a built-in NIST traceable gas cell that ensures calibrated
measurements at all time. For this reason, a compulsory periodic calibration is not
required. Nevertheless, for regulatory reasons or internal rules, a periodic certified cali­
bration procedure is sometimes required. For those cases, the calibration service is avail­
able and can be requested to HBK FiberSensing.
3.4 Switching On
Pressing the ON/OFF button will start the interrogator. The STATUS LED will start blinking
at 2 Hz. After approximately 30 seconds it will start blinking at 1 Hz. This means that the
interrogator is already on and responsive, but the optoelectronic module is still warming
up. After approximately 90 seconds it should stay on permanently. This means that the
interrogator is able to measure.