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EN
14073818.10 05/2021 EN/DE/FR/ES
16
WIKA operating instructions model TR33
5. Commissioning, operation
DANGER!
Danger to life caused by electric current
Upon contact with live parts, there is a direct danger to life.
▶
The instrument may only be installed and mounted by
skilled personnel.
▶
Operation using a defective power supply unit (e.g. short-
circuit from the mains voltage to the output voltage) can
result in life-threatening voltages at the instrument!
▶
Carry out installation in de-energised state only.
This is protection class 3 equipment for connection at low voltages,
which are separated from the mains voltage or voltages of greater than
AC 50 V or DC 120 V. Preferably, a connection to an SELV or PELV circuit
is recommended; alternatively protective measures from HD 60346-4-41
(DIN VDE 0100-410).
Alternatively for North America
The connection can be made in line with “Class 2 Circuits” or “Class 2
Power Units” in accordance with CEC (Canadian Electrical Code) or
NEC (National Electrical Code).
Load diagram
The permissible load depends on the loop supply voltage. For
communication with the instrument with programming unit PU-548, a
max. load of 350 Ω is admissible.
0
10
24 30 36
1083
833
583
Load R
A
in
Ω
2363156.02
Voltage U
B
in V
Содержание TR33
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