SB1xxx SB2xxx SB3xxx SB4xxx SB5xxx SB6xxx SB7xxx SB8xxx SB9xxx SB03xx
Mechatronic flow
sensor
22
u
Select [uni.F] and set the unit of measurement.
u
Select [uni.T] and set the unit of measurement.
10.4.2 Process value for OUT1 and OUT2
For both outputs, you can select which process value is to be monitored. All further parameter settings
are based on this selection.
Selectable values:
•
TEMP: Temperature
•
FLOW: Flow
10.4.2.1 Parameter setting via unit keys: Process value OUT1 and OUT2
u
Call up the menu [EF] > [CFG].
u
[SELx] select Set process value for output OUTx.
10.4.2.2 Parameter setting via IO-Link: Process value OUT1 and OUT2
u
Call up [Parameters] > [Output Configuration].
u
[SELx] select Set process value for output OUTx.
10.4.3 Calibration
The calibration factor [CGA] is used to adjust the temperature-viscosity compensation of the sensor to
the characteristics of the oil used. The calibration factor influences the slope of the measurement
characteristic of the flow measurement.
The sensor is suitable for oils with indicated viscosity (
Ò
Technical data at
The indicated viscosity applies to an oil temperature of 40 °C. For this oil, the sensor automatically
compensates the viscosity change in the temperature range of 20...70 °C. The viscosity at 40 °C is not
variable.
The specified compensation characteristic is openly documented in an ifm calculation tool. See also
www.ifm.com - Service - Technical support
● Calculation tool CGA for SB flow sensors
If the viscosity behaviour deviates via the temperature due to additives in the oil used, the deviation
can be reduced through calibration.
u
In this case adapt the calibration factor [CGA], see example:
Medium
Temperature
Viscosity
[CGA]
Reference oil
20 °C
430 mm
2
/s
100%(factory setting)
Oil 1
20 °C
540 mm
2
/s
80%
Oil 2
20 °C
360 mm
2
/s
120%
The slope modification of the measurement characteristic is indicated in per cent. The factory
setting is [CGA] = 100%. After a change the calibration can be reset to factory setting.
