1592021021 XC1008-1011-1015D GB A5 r.1.5A 12.10.2009 XC1008-1011-1015D 56/66
13. Electrical connections
The instruments are provided with disconnectable screw terminal blocks to connect cables with a
cross section up to 2,5 mm
2
.
Before connecting cables make sure the power supply complies with the instrument’s requirements.
Separate the input connection cables from the power supply cables, from the outputs and the power
connections. Do not exceed the maximum current allowed on each relay, in case of heavier
loads use a suitable external relay.
13.1 Probes connection
Pressure probe (4 - 20 mA): respect the polarity. If using terminal ends be sure there are no bear
parts which could cause short circuiting or introduce noise disturbance at high frequencies. To
minimise the induced disturbances use shielded cables with the shield connected to earth.
Temperature probe: it is recommended to place the temperature probe away from direct air
streams to correctly measure the temperature.
14. RS485 serial link
All models can be integrated into the monitoring and alarm system using the RS485 serial port.
They use the standard ModBus RTU protocol, so they can be fitted in a system integrator using this
protocol.
15. Technical features
Housing: plastic self extinguishing V0.
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