WIKA TR21-A, Руководство по эксплуатации

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EN
14170746.05 03/2022 EN/DE/FR/ES
WIKA additional information model TR21 (Ex i) 11
■
Thermometer with direct sensor output with Pt100 (model TR21-x-xPx) and
Pt1000 (model TR21-x-xRx)
Parameters Hazardous gas
atmosphere
Hazardous dust
atmosphere
Terminals 1 - 4 1 - 4
Voltage U
i
DC 30 V DC 30 V
Current l
i
550 mA 250 mA
Power P
i
1,500 mW 750/650/550 mW
Effective internal capacitance C
i
negligible negligible
Effective internal inductance L
i
negligible negligible
Maximum self-heating at the
sensor or thermowell tip
(R
th
) = 335 K/W (R
th
) = 335 K/W
3.5 Overview of the temperature zones
■
Model TR21-A
14103751.02
with transmitter without transmitter
T
a
: -40 ... +85 °C T
a
: -50 ... +85 °C
T
a
: -40 ... +100 °C T
a
: -50 ... +100 °C
T
a
: -40 ... +150 °C T
a
: -50 ... +150 °C
T
Process
: -30 ... +250 °C T
Process
: -30 ... +250 °C
3. Commissioning, operation