Introduction
2106M0525 Iss 2 Nov 05 8
All versions of the detector are designed for connection to a dedicated controller, e.g. Touchpoint
1
or Touchpoint
4
(contact your distributor for details).
The detector’s construction allows unit dismantling for:
• gas sensors to be easily changed
• cabling to be routed and terminated
• commissioning/maintenance
• accessories to be fitted
The detector’s screw-in sensor cannot be repaired but is replaced as a complete unit.
The certified enclosure acts as a junction box and is fitted with 3 cable entries and a 4-wire terminal
block. The gas sensor is fitted to a tapped hole in the enclosure and is secured with a locknut.
The enclosure features a hinged lid that facilitates installation by a single technician when making
electrical connections/changing the sensor.
The terminal block is used to connect sensor power/signals to an external controller. The three cable
entry positions are fitted with approved seals. An earth continuity plate with earth terminal is fitted
for added RFI protection.
All the detector types can be fitted with a range of accessories, e.g. filter, weather housing, collecting
cone, and calibration gas flow adaptor.
Proper consideration must be made when locating the detector to ensure trouble free operation
throughout its life.
General
This document consists of the following chapters:
• Introduction
• Installation, see page 9
• Maintenance (including fault finding), see page 20
• Parts, see page 28
• Specification, see page 30
• Certification, see page 33
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