Burkert Type 8112 Bedienungsanleitung PDF herunterladen (Seite 6)

Supply and signal circuit

Terminal no. 1[+], no. 2[-] In ignition protection type intrinsic safety EEx ia

IIC/IIB

Only for connection to a certiﬁed intrinsically

safe circuit.

Maximum values:

Ui = 20 V

Ii = 103 mA

Pi = 516 mW

Li = negligibly small

Ci = negligibly small

The intrinsically safe circuits are electrically separated from parts which can be grounded.

For applications requiring instruments of category 2G or 1/2G, the intrinsically safe power

supply and signal circuit can correspond to protection class ia or ib. For connection to a circuit

of category ib, the ignition protection type identiﬁcation is EEx ib IIC T6.

Tip:

Ignition protection type identiﬁcation: II 2G EEx ia IIB T6, II 2G EEx ib IIB T6 resp. II 1/

2G EEx ia IIB T6 in case of power supply via a circuit of group IIB.

3.2 Application conditions

3.2.1 Permissible ambient temperatures

On the sensor - category 1/2G

Temperature class

- T6 -20 … +85 °C

- T5 -20 … +100 °C

- T4 -20 … +135 °C

- T3 without temperature adapter -20 … +150 °C

- T3 with temperature adapter -20 … +200 °C

- T2, T1 with temperature adapter -20 … +250 °C

On the sensor - category 2G

Temperature class

- T6 -40 … +85 °C

- T5 -40 … +100 °C

- T4 -40 … +135 °C

- T3 without temperature adapter -40 … +150 °C

6 LEVEL SWITCH LS8111.C******N*; LEVEL SWITCH LS8112.C******N*

32845-EN-070615

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Burkert Type 8112 Bedienungsanleitung Seite 6