Owner's manual

OM-USB-TEMP User's Guide Specifications

Current excitation outputs (Ix+)

Table 16. Current excitation output specifications

Parameter Conditions Specification

Configuration 4 dedicated pairs:

±I1 - CH0/CH1

±I2 - CH2/CH3

±I3 - CH4/CH5

±I4 - CH6/CH7

Thermistor 10 µA typ.Current excitation output ranges

RTD 210 µA typ.

Tolerance ±5% typ.

Drift 200 ppm/°C

Line regulation 2.1 ppm/V max.

Load regulation 0.3 ppm/V typ.

Output compliance voltage

(relative to GND pins 9, 19, 28, 38)

3.90 V max.

-0.03 V min.

Note 18: The OM-USB-TEMP has four current excitation outputs, with ±I1 dedicated to the CH0/CH1

analog inputs, ±I2 dedicated to CH2/CH3, ±I3 dedicated to CH4/CH5, and ±I4 dedicated to

CH6/CH7. The excitation output currents should always be used in this dedicated configuration.

Note 19: The current excitation outputs are automatically configured based on the sensor (thermistor or

RTD) selected.

Environmental

Table 17. Environmental specifications

Operating temperature range 0 to 70 ° C

Storage temperature range -40 to 85 ° C

Humidity 0 to 90% non-condensing

Mechanical

Table 18. Mechanical specifications

Dimensions 127 mm (L) x 88.9 mm (W) x 35.56 (H)

User connection length 3 meters max.