Electrical connection
CA76NA
18
Hauser
6
Electrical connection
L
WARNING
Device is live!
Incorrect connection may result in injury or death!
‣
The electrical connection may be performed only by an electrical technician.
‣
The electrical technician must have read and understood these Operating Instructions
and must follow the instructions contained therein.
‣
Prior
to commencing connection work, ensure that no voltage is present on any cable.
6.1
Connecting requirements
1. Route the input and control cables separately from the low-voltage cables.
2. Use shielded cables to connect control cables for analog signals.
3. At the place of installation, connect the shield at one end or both ends in accordance
with the shielding concept of the plant and the cable used.
4. Suppress inductive loads such as a relay with a free-wheeling diode or RC module.
5. When connecting the current output, pay attention to the polarity and maximum
load (500 Ω).
6. If floating relay outputs are used, provide an appropriate backup fuse for these relays
at the installation location.
7. Observe the values for maximum contact load → 65.
NOTICE
The device is only suitable for fixed installation.
‣
At the installation location, you must provide an all-pole disconnecting device as per
IEC 60947-1 and IEC 60947-3 in the vicinity of the power supply.
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The disconnecting device may not disconnect a protective conductor.
6.2
Connecting the analyzer
L
WARNING
Failure to comply with the instructions for protective grounding can result in injury or
death
‣
Comply with the instructions for protective grounding when installing the analyzer.
‣
The device is Class 1 equipment: use a separate protective ground for the mains
connection.
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It is not permitted to disconnect the protective ground
6.2.1
Opening the housing of the electronics unit
Opening the housing of the electronics unit
1.
A0033421
6
Electronics unit housing, securing screws on the cover
Loosen the securing screws on the cover with a PH2 Phillips head screwdriver.
