Product Description; General - Crowcon IR Display Instructions D'installation, D'utilisation Et De Maintenance

1. Product Description

1.1 General

The Crowcon IR Display is an optional accessory for the IRmax infrared gas detector.
The IR Display enables checking and calibration of the IRmax without requiring
de-classification of the product or hot-work permits.
The IR Display can be connected to the IRmax in a number of different configurations, all
of which maintain the intrinsically safe property of the unit.
Option 1: The Fixed IR Display is an IS unit that attaches directly to the IRmax (see
Diagram 2 below).
M20 0R 1/2" NPT
All dimensions in millimetres
Diagram 2: IRmax display connected to detector
Option 2: The Remote IR Display can be mounted up to 30 metres away from the IRmax
when connected via an Intrinsically Safe connecting lead and barrier module. This option
is supplied with an anti-static glass reinforced nylon housing and mounting bracket. (See
Diagram 5 on page 6). The IS Hand-Held Calibrator is available for remote calibration
and interrogation of IRmax via a temporary connection. With this option, only one unit is
required per fleet of IRmax detectors.
The IR Display features IP66 ingress protection, has a very wide operating temperature
range of -40°C to +75°C, and is certified for use in Zone 1 or Zone 2 hazardous areas.
2
CABLE ENTRY
230.2