EVCO EPK4BHQ1AH Hardware manual - Manual (Page 49)

EVCO S.p.A. c-pro 3 NODE kilo+ | Hardware manual ver. 1.0 | Code 114CP3NKPE104
page 49 of 55
Power supply:
- 24 VAC (+10 %, -15 %), 50/60 Hz (±3 Hz), 35 VA max. non insulated
- 24 VDC (-15 %, +65 %), 12 W max. non insulated
supplied by a class 2 circuit.
Protect the power supply with a 2A-T 250 V fuse
If the device runs on direct current, it shall be necessary to pay attention to the polarity of
the supply voltage.
Rated impulse voltage: 4 KV.
Overvoltage category: III.
Class and structure of software: A.
Clock:
integrated (with primary lithium battery)
Battery autonomy without power supply: 5 years at 25 °C (77 °F).
Drift: ≤ 30 s/ month at 25 °C (77 °F).
Analog inputs:
10 inputs:
- 4 configurable via configuration parameter for PTC, NTC or Pt 1000 probes
- 6 configurable via configuration parameter for PTC, NTC, Pt 1000 probes,
transducers 0-20 mA, 4-20 mA, 0-5 V ratiometric or 0-10 V.
Ratiometric transducers 0-5 V power supply: 5 VDC (+0 %, -12 %), 60 mA max.
Transducers power supply 0-20 mA, 4-20 mA e 0-10 V: 12 DC (+50 %, -25 %),
120 mA max.
The maximum current distributable by the two power supplies is 120 mA.
Digital inputs PTC (990 @ 25 °C, 77 °F)
Type of sensor: KTY 81-121.
Measurement field: from -50 to 150 °C (from -58 to 302 °F).
Precision: ±0,5 % of scale end.
Resolution : 0,1 °C.
Conversion time: 100 ms.
Protection: none.
Digital inputs NTC (10 K @ 25 °C, 77 °F)
Type of sensor: ß3435.
Measurement field: from -50 to 120 °C (from -58 to 248 °F).
Precision: - ±0.5 % of scale end from -40 to 100 °C
- ±1 °C from -50 to -40 °C and from 100 to 120 °C.
Resolution : 0.1 °C.
Conversion time: 100 ms.
Protection: none.