WIKA T32.1S, Руководство по эксплуатации, Страница: 31 / 80

EN
11258421.13 10/2017 EN/DE
WIKA operating instructions model T32.xS 31
10.1 Model overview and their European approvals
Model Ex protection and approval no. Ignition protection type
T32.1S.0IS-x
(head mounting version)
II 1G Ex ia IIC T4/T5/T6 Ga
II 1D Ex ia IIIC T120 °C Da
Intrinsically safe equipment
T32.3S.0IS-x
(rail mounting version)
II 2(1)G Ex ia [ia Ga] IIC T4/T5/T6 Gb
II 2(1)D Ex ia [ia Da] IIIC T120 °C Db
Intrinsically safe equipment
T32.xS.0NI II 3G Ex nA IIC T4/T5/T6 Gc X Non-sparking equipment
T32.1S.0IC-x
T32.3S.0IC-x
II 3G Ex ic IIC T4/T5/T6 Gc Intrinsically safe equipment
The nominal electrical values for the head and the rail versions are identical.
For T32.xS.0IS: The intrinsically safe sensor circuit (optional 2-wire, 3-wire or 4-wire
configuration) for both versions is intended for the supply of equipment in areas with 1G or
1D requirements.
The version T32.1S.0lS is designed for installation in housings or connection heads in
areas with 1G, 2G or 1D, 2D requirements.
The version T32.3S.0IS is intended for installation in a housing which guarantees at least
protection class IP20 (2G application or installation outside the hazardous area) or IP6x
(2D application).
10.2 Specific conditions for safe use
T32.3S.xxx:
The surface of the case is not conductive. The temperature transmitter must be mounted in
a way that electrostatic charges will not occur.
T32.xS.0NI (use as non-incentive equipment II 3G Ex nA):
Disconnection of power supply is forbidden inside the hazardous area. When connecting
or disconnecting the terminals ensure the power supply is disconnected outside the
hazardous area.
These temperature transmitters must be mounted in a case that must at least correspond
to following ingress protection IP54 in accordance with IEC/EN 60529.
The holes in the connection terminals (T32.1S.0NI) or the additional connections labelled
“Modem” (T32.3S.0NI) shall not be used in connection with type of protection nA.
When during use in circuits with the safety class nA (non-incendive) the permissible
connected loads have been exceeded for a short term 1) , the use of these transmitters in
circuits with the safety class Ex nL (energy limited) is not permissible any more.
1) When the transmitters are used in circuits with the safety class nA, it is permissible to exceed the maximum supply voltage by up to 40 % for a
short term.
10. Notes for mounting and operating in hazardous areas