Emerson Rosemount 848T Quick Start Manual page 30

Quick Start Guide
Standards IEC 60079-0:2011, IEC 60079-1:2007, IEC
Markings
Special Conditions for Safe Use (X):
1. When the thread adapter or blanking plug is used with an enclosure
in type of protection increased safety "e" the entry thread shall be
suitably sealed in order to maintain the ingress protection rating (IP)
of the enclosure.
2. The blanking plug shall not be used with an adapter.
3. Blanking Plug and Threaded Adapter shall be either NPT or Metric
thread forms. G½ and PG 13.5 thread forms are only acceptable for
existing (legacy) equipment installations.
Table 6-2: Conduit Plug Thread Sizes
Thread
M20 x 1.5
½–14 NPT
G½
Table 6-3: Thread Adapter Thread Sizes
Male thread
M20 x 1.5–6H
½–14 NPT
¾–14 NPT
Female thread
M20 x 1.5–6H
½–14 NPT
PG 13.5
6.12 Additional certifications
6.12.1 SBS American Bureau of Shipping (ABS) Type Approval
Certificate
ABS Rules 2013 Steel Vessels Rules 1-1-4/7.7, 1-1-Appendix 3, 4-8-3/1.7,
30
60079-7:2006-2007
Ex de IIC Gb
16-HS1553096-PDA
4-8-3/13.1
Identification mark
M20
½ NPT
G½
Identification mark
M20
½–14 NPT
¾–14 NPT
Identification mark
M20
½–14 NPT
PG 13.5
May 2019
Rosemount 848T