Product Description And Type Designation; Range Of Use; Specific Use Conditions; Gas Group, Dust Group And Temperatures - Videotec EXH Instruction Manual

4 Product description and
type designation
The flameproof EXH housing is designed for
installation in potentially explosive environments
in painted Anticorodal aluminium alloy of group
AlSi7Mg0.3 EN AC-42100.
The housing has two 3/4" NPT cable gland holes.
The EXH housing has an IP66 degree of protection.
The version with germanium window has been
developed for applications with thermal cameras.

4.1 Range of use

The unit is designed for use in a fixed location, for
surveillance of areas classified as zone 1-21 and zone
2-22 with potentially explosive atmospheres.
The unit has been built and certified in compliance
with directive 2014/34/UE and with the international
standards IECEX, which define its range of application
and minimum safety requirements.

4.2 Specific use conditions

Contact the manufacturer for information on the
dimensions of the flameproof joint.
Ambient temperature and Surface temperature – see
instructions.
Care shall be taken to prevent accumulation of
electrostatic charges. See installation instructions.
Use fasteners with a Yield stress (min.): 700N/mm².
8
4.3 Gas Group, Dust Group and
Temperatures
The device is certified for the IIC group (Gas) and the
IIIC group (dust).
The temperature class is T6 (Gas) and T85°C (Dust)
Ambient temperature: from -40°C up to +50°C.
4.4 Characteristics of installable
devices
Cameras and lenses
• Maximum power: 20W
• Usable volume for camera/lens: 2800cm³
• Minimum distance between the walls of the
housing and the camera/lens: 12mm

4.5 Cable entry

The product is supplied with plastic caps for cable
entry protection. They cannot be used for installation.
Unused cable entries must be closed using
appropriate Ex certified locking devices with "db"
and "tb" explosion protection, suitable for the use
conditions and installed correctly.
All cable glands shall be Ex certified, as appropriate,
with protection type "db" and "tb", suitable for the
conditions of use and installed correctly.
When conduit is used, a suitable Ex certified stopping
box shall be used, as appropriate, with protection
type "db" and "tb", suitable for the conditions of use
and installed correctly.
The stopping box must be fitted within 50mm
(1.97in) from the enclosure entry.
The cable entry temperatures are specified in the
marking.
To maintain the IP level of product use cable glands
with appropriate IP level and apply to threads a
sealant compliant with standard IEC/EN60079-14.
MNVCEXH_2104_EN