Overview Of The Temperature Zones - WIKA TR34 Betriebsanleitung

10. Information on mounting and operation in ...
For applications that require EPL Gb or Db, the instruments designated
as "ia" can also be used in type "ib" measuring circuits, with the same
connection parameters.
Thus the entire measuring circuit (including the sensor circuit) is an "ib"
current circuit. Instruments that have been operated in a power supply
circuit of type "ib" cannot be re-used in a power supply circuit of type "ia".

10.2 Overview of the temperature zones

with transmitter
without neck tube
T : -40 ... +85 °C
a
Process
connection
T : -30 ... +150 °C
process
WIKA operating instructions model TR34 (Ex i)
without transmitter
without neck tube
T : -50 ... +85 °C
a
Process
connection
T : -50 ... +150 °C
process
with transmitter
with neck tube
T : -40 ... +85 °C
a
T : -40 ... +85 °C
a
Process
connection
T : -30 ... +250 °C
process
without transmitter
with neck tube
T : -50 ... +85 °C
a
T : -50 ... +150 °C
a
Process
connection
T : -50 ... +250 °C
process
EN
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