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LEF CT-4/D - Page 12

LEF CT-4/D
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ENGLISH
- 12 -
Detection of fault probes, maximum flexibility of managing and semplicity of
programming, checking of validity of the insert data during programming phase.
Continuos storage of planned and reached values by each channel (limits and
historic highs).
Dielectric isolation: 2.5 KV AC for 60.
Software configuration to control the environment temperature.
Resolution 1° C.
Working temperature of device from -20°C to 60°C.
Max allowed dampness in the room 90% not condensing.
Electrical connections with fast polarised connectors.
Possibility of manual relays switch through menu test relays to simulate and
check the reliability of contact.
Galvanically insulated output 4-20mA or 0-20mA (CT-4/20MA)
Maximum impedance allowed for current output 500 Ohm (CT-4/20MA)
Range 4-20mA (-10°C 4mA / +200°C 20mA)
Transformation formula: lout = (T+10)/210*16 + 4 (current in mA, temperature in
°C)
Range 0-20mA (-10°C 0mA / +200°C 20mA)
Transformation formula: lout = (T+10)/210*20 (current in mA, temperature in
°C).
Transformation formula: lout = (T+10)/210*16 (current in mA, temperature in
°C).
Technical manual in five languages (and more on request).
Construction in accordance with rule EN 61000-6-2:2005 2014/30/EU.
Input filter for power supply in accordance with rules .
Tropicalization (optional).
ASSEMBLY
Perform a square hole measuring 91x91 mm in the panel board sheet.
Fasten the monitoring system trough the special hooks.
POWER SUPPLY
The device can be supplied with (24÷240) Volt AC/DC ±10% 50/60 Hz without
respect of polarity.