User manual

Operating Instructions OPUS20E For external sensors
9
EN
Table 1: Summary of Channel Groups (Measurement Variables) and Measurement Channels available on the Data Logger
Sensor
assignment
Sensor type Channel group
(measurement
variable)
Unit Calculation
channels
available for
measurement
conversion
Measurement channels
available for data logging
(max. 20 channels storable)
and display (max. 3 channels
displayable)
BUS
sensor 1
For example
TFF sensor BUS class 71
Temperature °C – curr min max mean
Temperature °F – curr min max mean
Dew point °C – curr min max mean
Dew point °F – curr min max mean
Relative humidity % – curr min max mean
Absolute humidity g/m³ – curr min max mean
Mixing ratio g/kg – curr min max mean
BUS
sensor 2
(with Y-
junction)
For example
TFF sensor BUS class 71
Temperature °C – curr min max mean
Temperature °F – curr min max mean
Dew point °C – curr min max mean
Dew point °F – curr min max mean
Relative humidity % – curr min max mean
Absolute humidity g/m³ – curr min max mean
Mixing ratio g/kg – curr min max mean
BUS
sensor 3
(with Y-
junction)
For example
TFF sensor BUS class 71
Temperature °C – curr min max mean
Temperature °F – curr min max mean
Dew point °C – curr min max mean
Dew point °F – curr min max mean
Relative humidity % – curr min max mean
Absolute humidity g/m³ – curr min max mean
Mixing ratio g/kg – curr min max mean
BUS
sensor 4
(with Y-
junction)
For example
TFF sensor BUS class 71
Temperature °C – curr min max mean
Temperature °F – curr min max mean
Dew point °C – curr min max mean
Dew point °F – curr min max mean
Relative humidity % – curr min max mean
Absolute humidity g/m³ – curr min max mean
Mixing ratio g/kg – curr min max mean
Analog
sensor 1
on input
channel 1
(An0)
Voltage measurement 0 - 1 V Voltage V V
Yes,
see
Table 2
curr min max mean
Current measurement using 2-wire technique 4 - 20 mA Current strength mA curr min max mean
Current measurement using 3-wire technique 0 - 20 mA Current strength mA curr min max mean
Pt100 temperature measurement using 3-wire technique Temperature °C – curr min max mean
Pt100 temperature measurement using 3-wire technique Temperature °F – curr min max mean
Pt100 temperature measurement using 4-wire technique Temperature °C – curr min max mean
Pt100 temperature measurement using 4-wire technique Temperature °F – curr min max mean
Temperature measurement using type K thermocouple Temperature °C – curr min max mean
Temperature measurement using type K thermocouple Temperature °F – curr min max mean
Temperature measurement using type J thermocouple Temperature °C – curr min max mean
Temperature measurement using type J thermocouple Temperature °F – curr min max mean
Temperature measurement using type S thermocouple Temperature °C – curr min max mean
Temperature measurement using type S thermocouple Temperature °F – curr min max mean
Analog
sensor 2
on input
channel 2
(An1)
Voltage measurement 0 - 1 V Voltage V V
Yes,
see
Table 2
curr min max mean
Current measurement using 2-wire technique 4 - 20 mA Current strength mA curr min max mean
Current measurement using 3-wire technique 0 - 20 mA Current strength mA curr min max mean
Pt100 temperature measurement using 3-wire technique Temperature °C – curr min max mean
Pt100 temperature measurement using 3-wire technique Temperature °F – curr min max mean
Pt100 temperature measurement using 4-wire technique Temperature °C – curr min max mean
Pt100 temperature measurement using 4-wire technique Temperature °F – curr min max mean
Temperature measurement using type K thermocouple Temperature °C – curr min max mean
Temperature measurement using type K thermocouple Temperature °F – curr min max mean
Temperature measurement using type J thermocouple Temperature °C – curr min max mean
Temperature measurement using type J thermocouple Temperature °F – curr min max mean
Temperature measurement using type S thermocouple Temperature °C – curr min max mean
Temperature measurement using type S thermocouple Temperature °F – curr min max mean