turck BL20 Series - 8.8.1 Technical data

151
2020/09
8.8.1 Technical data
Technical data
Designation BL20-E-8AI-U/I-4PT/NI
Number of channels 8 (U/I) /4 (Pt/Ni/R)
Nominal voltage from supply terminal U
L
24 VDC
(18 VDC…30 VDC)
Nominal current from
supply terminal I
L
typ. 35 mA (without measurement signal)
Nominal current from module bus I
MB
 30 mA
Power loss of module, typical < 1,5 W
Special Technical data
Parameterizable measured variables voltage, current, Pt, Ni, R
– Voltage measurement -10…10 VDC/0…10 VDC
Max. input voltage U
max
± 20 VDC
Input resistance (burden) R
L
> 200 k
Cutoff frequency f
G
1.5 Hz
Basic error
(nominal range at 23 °C)
0.2 %
Temperature coefficient
200 ppm/ °C
– Current measurement 0…20 mA/ 4…20 mA
Max. input current I
max
40 mA
Max. input voltage U
max
< 17 VDC
Input resistance (burden) R
L
< 52 
Cutoff frequency f
G
1.5 Hz
Basic error
(nominal range at 23 °C)
0.2 %
Temperature coefficient
200 ppm/ °C
– Pt sensor (EN 60 751) Pt 100, Pt 200, Pt 500, Pt 1000
Measurement current I
meas
0…400  < 2 mA
400…4000  < 0,5 mA (integral)
Destruction limit U
max
> 30 VDC
Cutoff frequency f
G
1.5 Hz
Basic error
(nominal range at 23 °C)
0,2 % (Pt200, Pt500, Pt1000)
0,35 % (Pt100)
Temperature coefficient
200 ppm/ °C