EVCO c-pro micro - Manual (Page 14)

C-PRO MICRO HARDWARE MANUAL
Page 14
3.6 Electrical characteristics
CPU
Microcontroller 8 bit
Program flash memory 128 Kbyte
RAM for data memory 4 Kbyte
EEPROM 4 Kbyte
A/D 8 channels at 10 bit
Power supply Voltage 12 V AC/DC
Range -10% +15%
Frequency 50/60 Hz / DC
Maximum input power 6 VA
Fuse rating External
Digital outputs Number 6
Type Electromechanical relays
Maximum breaker current at 250 V AC
Please note:
maximum current for common contact
(DO4+DO5): < 4 A
maximum current for the other
contacts: < 3 A 3(1) A
Number of processing cycles 100.000
Minimum switching interval 20 s
Micro-switch action type 1C
Insulation between relays and low
voltage Reinforced
Insulation between relays Functional
Insulation between relays and DO6 Reinforced
Digital inputs Number 5
Type Clean contact
Breaker closure current to earth 2 mA
Maximum closure resistance 100 Ω
OFF to ON detection time 100 ms
ON to OFF detection time 100 ms
Analogue inputs for Number 2
NTC probes Type NTC (10 KΩ ±1% @25
°
C)
NTC measurement range -40
°
C
÷
100
°
C
NTC measurement accuracy ±1
°
C
NTC measurement sensitivity 0.1
°
C
Analogue inputs for Number 2
NTC probes or
ratiometric pressure Type NTC (10 KΩ ±1% @25
°
C)
transducers NTC measurement range -40
°
C
÷
100
°
C
NTC measurement accuracy ±1
°
C
NTC measurement sensitivity 0.1
°
C
Type Current
Current measurement range 0/4
÷
20 mA
Current measurement accuracy ±0.08 mA
Current measurement sensitivity 0.01 mA
Input resistance 200 Ohm