Wiring - Siemens Pointek CLS200 Operating Instructions Manual

Wiring

All field wiring must have insulation suitable for at least 250 V.
Note
• Only qualified personnel are authorized to install and operate this equipment in
accordance with established safety practices and standards.
• The Protective Earth Terminal indicated by must be connected to reliable ground. Use a
crimp type cable socket for 4 mm screw diameter, ring form or U-form (e.g DIN 46234). In
case of non-metallic vessels, the external earth wire should be connected to an earthed
component which is earthed near the vessel.
• All wiring must be done by qualified personnel in accordance with all governing
regulations.
• The equipment must be protected by a 16A fuse or circuit breaker in the building
installation.
• A circuit breaker or switch in the building installation, marked as a disconnect switch, shall
be in close proximity to the equipment and within easy reach of the operator.
• Use shielded cable, wire gauge 20 AWG to 14 AWG (0.5 mm
installations use a cable with a braided metallic shield (or armoured cable where
applicable).
• Maximum working voltage between adjacent relay contacts is 250 V.
• Relay contact terminals are for use with equipment which has no accessible live parts and
wiring which has insulation suitable for at least 250 V.
• Cable entry devices and closing elements of unused apertures must meet a temperature
range from min. -40 °C to 10 K above max. ambient temperature.
1. Loosen the lid clip and remove the lid to access the connectors and electronics. (For quick
reference, the diagram on the next page can also be found on the underside of the lid,
together with a guide to switch function).
2. Connect the wires to the terminals (polarity is not important).
3. Ground the instrument according to local regulations.
4. Tighten the gland to form a good seal.
5. If you wish to carry out a function test, follow the test procedures in Functionality tests -
CLS200 (Page 33).
Pointek CLS200/CLS300 standard
Operating Instructions, 05/2021, A5E47827796-AA
WARNING
to 2.0 mm ). For CE
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