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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
The detectors/sensors that the controller connects to may be used for gas
detection in hazardous atmospheres. Refer to the individual detector/sensor
Caution When carrying out any work ensure that executive outputs from the
controller are inhibited in order to prevent false alarms.
This chapter provides the following information about installing Touchpoint 1:
•
where to locate the controller, its dimensions and how to mount it
•
how to access the interior of the controller, see page 12
•
cabling and wiring, see page 13 and page 14
Note
It is recommended that a local fused power feed spur, with lockout switch, is used.
Earth/Ground loops or poor screening are the most common cause of false alarms.
Proper installation, using appropriate earth techniques improves:
•
resistance to radio frequency interference (RFI), e.g. mobile phones and walkie-talkies
•
resistance to induced signals from magnetic fields (EMC), e.g. high power cables
and switch gear.
Location
Touchpoint 1 can only be installed in indoor safe areas.
Refer to International codes of practice, e.g. National Electrical Code (NEC) or Canadian
Electrical Code (CEC), where applicable, for guidance when installing.
Ensure that the maximum distance from the controller to the detector is within specification.
Locate the bracket so that when the controller is fitted to it there is:
•
easy access to it
•
a clear view of the controller's display (normally eye level), check for national/
local regulations regarding the viewing of displays
TP1MAN Issue 3 Apr 06 (MAN0630)
Installation
with the recognized standards of the
appropriate authority in the country concerned.
are followed.
necessary precautions to prevent false alarms.
instructions for their details.
WARNINGS
Installation
9
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