JRC JHS-431, Instruction Manual, Page: 3 / 40

i
INTRINSIC SAFETY
Versions of the JHS-431 which display the “EX” marking on the serial
number seal.
The approval rating for these models are
II
2G Ex ib
II
A T3 Gb and
II
2D Ex
tb
III
C T160°C Db IP67.
WARNING! NEVER charge the BP-227AXD (with/without the transceiver) in an
explosive atmosphere. The optional battery chargers are not approved as Intrinsically
Safe.
When the transceiver is used in a hazardous area, the BP-227AXD
MUST be
attached, either the jack cover or HM-138 MUST be attached to the speaker-
microphone connector.
KEEP the transceiver and the BP-227AXD clean to avoid any risk of ignition due to
the build-up of electrostatic charges.
Repair of JRC radios should only be carried out by authorized JRC distributors. In
particular, repair of ATEX approved radios can
ONLY be done by JRC to maintain the intrinsically safe rating. NEVER attempt to
repair an ATEX approved radio. Only JRC has
the repair expertise and procedures to maintain the ATEX approval.
Contact your JRC distributor or authorised dealer for details.
The equipment can be used without the microphone but with the jack cover.
7ZPJD0566