extronics iRFID101, Installation And Operating Manual

Page: 10 / 26

iRFID101 Installation and Operating Manual
10
3.2.2 Closing the Enclosure
• Check that the correct grease (Loctite 8104 or Loxeal GS9) has been applied to the
flame-path, and that it is free of damage.
• Check all bolts are the correct type and free from damage.
• Re-insert the bolts and hand-tighten only.
• Using a torque wrench fitted with an 8mm hex head, tighten the bolts in opposite
corners of the box, then work around the box. Use the following maximum torque.
3.2.2.1 Lid Bolt Torques
Enclosure material Maximum Bolt Torque
Aluminium 20Nm
Stainless Steel 44Nm
Table 1: Enclosure Bolt Torques
3.3 Cable Entries
Warning! The iRFID101 flameproof enclosure must only be fitted with
suitably approved cable entry devices.
Warning! The iRFID101 protective plastic transport caps fitted to all
threaded cable entries MUST be replaced with suitably
certified cable glands or stopping plugs before installation in
a hazardous area.
Warning! Any iSOLATE-CT RF connector transits fitted to the iRFID101
must NOT be loosened or removed by the user under any
circumstances, as their flameproof protection may be
damaged by this.
3.3.1 Typical Cable Entries and Connections
A typical iRIFD101 enclosure is supplied with entries and connectors as shown in Figure 3.
• Connections A-D are INTRINSICALLY SAFE outputs providing galvanically isolated
RF signals (see Section 17
for details), carried on conventional 50Ω impedance N -
type female connections. The N-type connections are the front part of the iSOLATE-
CT devices which transit through the flameproof wall of the enclosure, and are
approved as part of the iRFID101 ATEX/IECEx certification.
• Entries D and E are M20 x 1.5 – 6H threaded Ex d entries. Entry D is for the power
supply, entry E for the data connection.
• The position and configuration of cable entries and connections can vary depending
on the iRFID101 ordered. Check with Extronics for more information if required.