Safety-Related Characteristic Values For Models T15.X-An, T15.X-Ae - WIKA T15 Serie Betriebsanleitung

11. Specifications
Models T15.x-AI
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 T15.H-AI is designed for installation in cases or connection heads in areas
with 1G, 2G or 1D, 2D requirements.
The version T15.R-AI is intended for installation in a case which guarantees at least
ingress protection IP20 (2G application or installation outside the hazardous area) or IP6x
(2D application).
Ambient temperature range
Application Ambient temperature range
-40 °C (-40 °F) ≤ T
Group II
-40 °C (-40 °F) ≤ T
-40 °C (-40 °F) ≤ T
-40 °C (-40 °F) ≤ T
Group IIIC
-40 °C (-40 °F) ≤ T
-40 °C (-40 °F) ≤ T
N / A = not applicable

11.2 Safety-related characteristic values for models T15.x-AN, T15.x-AE

Power and signal circuit (4 ... 20 mA loop)
Level of protection Ex nA IIC/IIB/IIA
Parameters
Terminals
Voltage U
i
Current I
i
Sensor circuit
Level of protection Ex nA IIC/IIB/IIA
Parameters
Terminals
Power P
o
WIKA operating instructions model T15
≤ +85 °C (+185 °F)
a
≤ +70 °C (+158 °F)
a
≤ +55 °C (+131 °F)
a
≤ +40 °C (+104 °F)
a
≤ +70 °C (+158 °F)
a
≤ +85 °C (+185 °F)
a
Models T15.x-AN, T15.x-AE
Gas hazardous application
+ / -
DC 35 V
21.5 mA
Models T15.x-AN, T15.x-AE
1 - 4
0.33 mW
DC 3.3 V
0.1 mA
Temperature class
T4
T5
T6
N / A
N / A
N / A
EN
Power P
i
800 mW
800 mW
800 mW
750 mW
650 mW
550 mW
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