© Brüel & Kjaer Vibro GmbH
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2 mm ds822 ATEX /8.12.16/technical specifications subject to change/C105507.001/V02
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21
EN
Ambient temperature range
Category 1/2 device
Category 2 device
The ambient temperature contains the self-heating of the measuring chain and therefore cannot
be exceeded by external sources the measuring chain is mounted on.
5.1
Responsibility of the plant operator
It is the sole responsibility of the plant operator to ensure the correct design of the system under
explosion protection conditions and its proper commissioning. The applicable explosion protec-
tion regulations and safety regulations must be observed and, where appropriate, verified by an
authorised expert.
If the plant is constructed by a sub-contractor on behalf of the operator, the plant may be put
into service only after the sub-contractor has produced a certificate to confirm that the installa-
tion has been carried out properly and professionaly according to the applicable regulations.
The initial operation of explosion protected plants or plant components, as well as the recom-
missioning of plants after extensive changes or maintenance work, must be reported to the rele-
vant authorities by the operator.
Temperature
class
Permitted ambient temperature range
category 1/2-G-device
Permitted surface temperature
category 2-D-device
Sensor / Extension
cable
Oscillator
Sensor / Extension
cable
Oscillator
T6
-55 °C…+53 °C
-55 °C…+61 °C
+71 °C
+91 °C
T5
-55 °C…+65 °C
-55 °C…+76 °C
+83 °C
+106° C
T4
-55° C…+93 °C
-55 °C…+79 °C
+111 °C
+109 °C
T3
-55 °C…+145 °C
-55 °C…+79 °C
+163 °C
+109 °C
T2, T1
-55°C…+150 °C
-55 °C…+79 °C
+168 °C
+109 °C
Temperature
class
Permitted ambient temperature range
category 2-G-device
Permitted surface temperature
category 2-D-device
Sensor / Extension
cable
Oscillator
Sensor / Extension
cable
Oscillator
T6
-55 °C…+67 °C
-55 °C…+61 °C
+85 °C
+91 °C
T5
-55 °C…+82 °C
-55 °C…+76 °C
+100 °C
+106 °C
T4
-55 °C…+117 °C
-55 °C…+79 °C
+135 °C
+109 °C
T3,T2, T1
-55 °C…+150 °C
-55 °C…+79 °C
+168 °C
+109 °C
