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Touchpoint 1 is designed for installation and use in indoor safe area
non-explosive atmospheres. Installation must be in accordance
Before carrying out any work ensure local regulations and site procedures
Access to the interior of the controller, when carrying out any work, must only be
conducted by trained personnel. Switch off and isolate the power supply
to the controller, or obtain a hot work permit, when access is required. Take any
Caution Calibration of the gas detector and the controller is mandatory
during commissioning to ensure their proper functioning.
This chapter describes how to put the two versions of Touchpoint 1 into service with the
following different types of gas detectors:
•
3-wire mV bridge, see page 34
•
2-wire 4-20 mA sink, see page 36
•
3-wire 4-20 mA source, see page 37
After powering up the Touchpoint 1 for the first time, the controller uses the default factory
settings.
To customize these settings for new requirements see page 38.
Note
On the subsequent diagrams,
3-wire mV Bridge
This procedure covers connection to gas detectors such as
Sensepoint Flammable. Carry out the following procedure
1
Check that all power and electrical connections to the
controller, and electrical connections to the gas detector
are correct.
For gas detector access see its user manual. For detector to
controller wiring details see page 18.
TP1MAN Issue 3 Apr 06 (MAN0630)
Commissioning
with the recognized standards of the
appropriate authority in the country concerned.
are followed.
necessary precautions to prevent false alarms.
WARNINGS
= LED ON,
= LED OFF
ALARM
Commissioning
POWER
FAULT
34
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