Ex-BA line sensor
11
Doc 141917 | Rev. 03
[Operating conditions (X-Conditions)]
4.
Operating conditions (X-Conditions)
The following special conditions are applicable for installation, operation and replacement of
sensors.
NOTE
The approved ambient temperature ranges for the sensors can be found in the applicable sections of
"Electrical and thermal parameters"
For measurement in different process temperatures the specification of the ambient temperature
range or the temperature class depending on the type is based exclusively on the sleeve,
connection cable and plug connector. The influence of the process temperature on the
temperature of the sleeve (RKW sensor sleeve) must be considered separately in the operation of
the temperature sensors with cables.
Suitable measures, e.g. corresponding selection of the length of the sensor, depending on the
type will ensure that the temperature of the sleeve, connection cable and plug connector is safely
decoupled from the process temperature.
The instructions for use of the manufacturer of all components of the intrinsically safe measure
circuit must be observed with reference to the approved process conditions.
The following applies for the sensors type WR14-O*-****, TR14-O*-****, WR14-P*-****, TR14-
P*-****, RKW-8-*-****, RKW-9-*-**** with code II 1G Ex ia IIC T1 … T6 Ga and
II 1D Ex ia IIIC T135°C Da:
#
In gas – explosive areas, the sensors have to be installed in such away, that electrostatic
charging is excluded.
The following applies for the sensors type WR14-O*-****, TR14-O*-****, WR14-P*-****, TR14-
P*-****, WR14-M*-***, TR14-M*-***, RKW-8-*-****, RKW-9-*-****
with code II 1G Ex ia IIC T1 … T6 Ga and II 1D Ex ia IIIC T135°C Da:
#
The metal parts of the sensors must be included in the equipotential bonding.
#
The installation of the sensors in a partition with EPL Ga/Gb or
Da/Db requirements must be with standardised connections.
#
The installation location must be technically sealed.
#
The instructions in accordance with IEC / EN 60079-26 must be observed.
Summary of Contents for R14 Series
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