Analog input modules
D300529 0115 - BL67 I/O modules6-24
6.4.1 Technical data
Table 6-13:
Technical data
Designation BL67-2AI-PT
No. of channels 2
Nominal voltage from supply terminal 24 VDC
Voltage range 18 to 30 VDC
Nominal current consumption from 5 VDC (mod-
ule bus) I
MB
≤ 45 mA
Nominal current from supply terminal (field) I
L
≤ 30 mA
Power loss of the module, typical P
MAX
< 1 W
Measurement current < 1 mA
Max. input voltage U
max
(destruction limit) > 30 VDC
Isolation voltage
U
TMB
(module bus/field) min. 500 V
eff
U
Fe
(field/functional earth) min. 50 V
AC
channel/channel none
channel/field supply none
channel/system supply 500 V
eff
Platinum sensors according to DIN IEC 751
Nickel sensors according to DIN 43 760
Measurement value representation – 16 Bit: two's complement coded
or
– 12 bit left-justified
two’s complement (even negative values possi-
ble) binary number without coding (only posi-
tive values possible)
Offset error ± 0,1 %
Linearity < 0.1 %
Basic error at 23 °C/73.4 °F ± 0,2 % from end value
Repeat accuracy 0,05 %
Temperature coefficient ≤ 300 ppm/°C from end value
t
CYCL
(cycle time) ≤ 130 ms per channel
Connectable sensors
Platinum sensors Pt100, Pt200, Pt500, Pt1000
Nickel sensors Ni100, Ni1000