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22
Device Description
Table 11: Technical Data – Inputs
Internal resistance
Cold junction compensation
Resolution (over entire range)
Conversion time
Measuring error
Temperature coefficient
Max. admissible current between the
ground contacts 3 and 7
3.6.4
Communication
Table 12: Technical Data – Communication
Internal bit width (internal bus)
2-channel-operation
3.6.5
Climatic Environmental Conditions
Table 13: Technical Data – Climatic Environmental Conditions
Operating temperature range
Operating temperature range for
components with extended
temperature range (750-xxx/025-xxx)
Storage temperature range
Storage temperature range for
components with extended
temperature range (750-xxx/025-xxx)
Relative humidity
Resistance to harmful substances
Maximum pollutant concentration at
relative humidity < 75 %
Special conditions
25°C
WAGO-I/O-SYSTEM 750
750-469 2AI Thermocouple
1 MΩ
At each pair of terminal blocks
0.1 °C
320 ms (each channel)
< ±6 K (voltage input
< ±2 K; cold junction compensation <
±4 K)
< ±0.2 K/K
100 mA
2 × 16 bits data
2 × 8 bits control/status (optional)
0 °C ... 55 °C
−20 °C ... +60 °C
−25 °C ... +85 °C
−40 °C ... +85 °C
Max. 5 % ... 95 % without condensation
Acc. to IEC 60068-2-42 and
IEC 60068-2-43
SO
≤ 25 ppm
2
H
S ≤ 10 ppm
2
Ensure that additional measures for
components are taken, which are used in
an environment involving:
– dust, caustic vapors or gases
– ionizing radiation
Manual
Version 1.1.0
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