11
SCAIME Manual : NU-eNod4B-ETH-E-236708-D.docx
3.2
Electrical characteristics
Power supply
Unit
Supply voltage
10.....28
V
DC
110.....240
V
AC
Max supply power
4.4
W
Additional max supply power (IO+ version)
3
W
Temperature range
Storage temperature range
-25...+85
°C
Working temperature range
-10...+40
°C
Load cell sensor
Minimum input resistance
>
43
Ω
sensor connection
4 or 6 wires
Bridge excitation voltage
5
V
DC
Communication
RS 485
Half-duplex
Rate
9 600...115 200
bauds
Ethernet 2 x RJ45
10/100
Mbits/s
Logical inputs
Number
2 (+2 with IO+ version)
Type
opto-insulated type 3
Low level voltage-current
0 / 5 VDC – 0 /1.5 mA
High level voltage-current
11 / 30 VDC – 2 / 9 mA
7 mA @ 24VDC
Logical outputs
Number
4
Type
solid state relay
Max. current @ 40°C
0,4
A
Max. voltage in open state
53 V
DC
or 37 V
AC
Max resistor in close state
2
Ω
Metrological specifications on A3 connector input (load-cell type sensor)
Input sensor range for a load cell sensor
7.8
mV/V
Thermal zero drift typical
1.5
ppm/°C
Thermal span drift typical
2
ppm/°C
Linearity deviation
0.003
% FS
Conversion rate
6.25 ... 1920
meas./s
