05/02 IPN: M5000-00-103
Servicing Intrinscially Safe radios A - 13
Servicing Intrinscially Safe radios
Intrinsically Safe radios
Intrinsically Safe (IS) radios are certified by a
third party to be safe to use in particular
hazardous locations.
Tait Orca 5000 IS handportables can be identi-
fied by one or more of the following:
■
Yellow labels
■
IS circle logo
■
FM diamond logo
A radio with any of these features must only be
serviced by an agency certified by both the
approval authority and Tait Electronics Limit-
ed. Any unauthorised repair or substitution of
parts invalidates the intrinsic safety rating and
the third party IS approval.
IS PCB servicing requirments
Tait Orca 5000 IS handportables must be
returned to an authorised Tait branch or
subsidiary for servicing. Any unauthorised
repair or substitution of parts invalidates the
intrinsic safety rating.
FM approval
Tait Orca 5000 IS handportables and accesso-
ries are approved by Factory Mutual Corpora-
tion (FM) to the following ratings:
FM approved products
Refer Figure A-1. Radios with the following
product code have FM IS approval:
■
TOP-a2
22
2cd0
00
0-T2
T2
T2
T2
FM approved accessories
The following accessories are approved for use
with the Tait Orca 5000 IS handportables.
■
TOPB200-IF NiCd IS battery pack
■
TOPA-AA-003 rugged speaker-micro-
phone
■
TOPA-AA-004 RF speaker-microphone
■
TOPA-AA-005 adapter (required for use
with TOPA-AA-012/013)
■
TOPA-AA-012 heavy duty headset with
noise cancelling microphone (over the
head)
■
TOPA-AA-013 heavy duty headset with
noise cancelling microphone (behind
neck)
■
T952-051 rugged earphone kit (optional
for use with TOPA-AA-003/004)
TOPB200-IF IS battery pack
The shift life of the TOPB200-IF IS battery
APPROVED
Approval
Class
Division
Group
Temperature Rating
Intrinsically Safe:
The unit is unable to
cause ignition under
normal or abnormal
operating conditions.
Class I:
Gas or petroleum
type environment.
Division 1:
Hazardous mixtures
are normally present.
Groups C & D:
Ethylene and propane
gases.
T3C:
160°C
Non-Incendive:
The unit is unable to
cause ignition under
normal operating con-
ditions.
Class I:
Gas or petroleum
type environment.
Division 2:
Hazardous mixtures
are present abnor-
mally.
Groups A, B, C & D:
Acetylene, hydrogen,
ethylene and pro-
pane gases.
T3C:
160°C
