Technical Description
IP244B
C79000–B8576–C865–01
3–8
Additional error by voltage divider
(channels 13 and 14) 0.25 %
Temperature influence
(0 to 50 mV range)
1
o
/
oo
/ 10 Kelvin
(2 E / 10 Kelvin)
Additional error by temperature influence in channels with
voltage divider (voltage divider temperature coefficient)
0,5
o
/
oo
/ 10 Kelvin
(1 E / 10 Kelvin)
Error message for out-of-tolerance, overrange and open wire
conditions
Yes
Open wire detection Yes for sensors with R
i
<1 kW
Measurement principle integrating
Resolution of measured value (internal) 11 bits + sign (value + sign);
2048 units;
with Pt 100 0...4096 units
Conversion time per channel typ. 50 ms
40 ms with 0
60 ms with 2048 units
80 ms with 4096 units
Integration time
– 50 Hz mains frequency 20 ms
– 60 Hz mains frequency 16
2
/
3
ms
Max. cable length
50 m, screened
for Pt 100 and linear sensors (> 500 mV) 200 m, screened
(recommended max. cable
length that may be exceeded
if appropriate noise suppres-
sion measures have been
taken)
Operation with ungrounded thermocouples possible if the max. common-
mode voltage is not ex-
ceeded.
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