Chapter 4 | Installation; Regulations And Operating Conditions; Pre-Installation Hardware Configuration - Oldham OLCT 80 User Manual

Chapter 4 | Installation
It is recommended that you read the relevant guides for installing,
operating and maintaining flammable gas and oxygen detectors
(EN 60079-29-2) and toxic detectors (EN 45544-4).

Regulations and operating conditions

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Installation must comply with current edition of EN 60079-14 for systems
installed in explosive atmospheres and eventually with any local or national
additional requirements that may apply in the country of installation.
In general, the ambient temperature, the power supply voltage and power
mentioned in this document pertain to safety precautions against explosion.
These temperatures are not the detector's operating temperatures.
■
The equipment is authorized for use in zones 1, 2, 21 and 22 for ambient
temperatures ranging between -20°C to +60°C.
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For the OLCT 80D id version, the sensor pack may be used in zones 0, 1, 2,
20, 21 and 22 if it is operated remotely with respect to the transmitter. The
transmitter is not authorized for use in zone 0 or 20.
■
The detection sensor must always be in contact with the ambient air.
Therefore:
- Do not cover the detection module.
- Do not apply paint on the detection module.
- Keep dust from building up.

Pre-installation Hardware Configuration

If one or two of the 4-20 mA inputs (ANA1/ANA2 sensor inputs) is going to be
used, see Chapter 7 on page 73.
4 – Installation
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