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SIGNALPOINT PRO OPERATING MANUAL
8 First time switch on
After mounting and wiring the transmitter, the plug in sensor should be fitted and the
installation visually and electrically tested as below.
Prior to carrying out any work ensure local and site procedures are
followed. Ensure that the associated control panel is inhibited so as to
Minimum and maximum controller alarm levels should not be set at less
than 10% or greater than 90% of the full scale range of the detector.
Caution: The following procedure should be followed carefully and only
1. Check that the transmitter is the correct type for the plug in sensor to be used.
2. Check that the transmitter is wired correctly according to this manual and the
associated control equipment manual.
3. Unscrew the sensor cover and retaining ring.
4. The sensor is supplied in a sealed pot. Pull off the plastic seal strip and
remove the sensor pot lid. Unpack the sensor from the plastic bag and
remove the shorting spring.
5. Plug in the sensor taking care to align the sensor pins with the connector
holes provided.
Caution: For toxic sensors, remove the shorting spring from the
bottom of the sensor prior to installation. For O
6. Refit the sensor retaining ring and sensor cover. Ensure the gasket that fits
between the sensor and sensor retaining ring is located in retaining ring.
7. Apply power to the associated controller which will in turn provide power to
the detector.
Review 'Live Maintenance' procedures in section 10.1 prior to proceeding
8. The detector display will enter a start up routine first displaying all the LCD
segments, then the software version number, then the detection range and
finally a countdown to 0. (Countdown time varies from 30 seconds to 4
minutes, depending on the sensor type). During this 'start up' sequence, the
current output will remain at 4mA.
9. Once countdown is complete, the detector will enter normal operating mode.
10. Check the voltages at the transmitter terminals are above the minimum
requirement.
11. Calibration is mandatory before the detector can be used for gas monitoring.
Refer to Section 8.3 Calibration for the proper procedure.
Note: The Signalpoint Pro detector will not turn on if powered up within 5 seconds of
power off.
WARNING
prevent false alarms.
performed by suitably trained personnel
shorting spring provided.
WARNING
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MAN0853 Issue 3 10/08
sensor, there is no
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