25
8027092/AE00/V1-0/2022-10| SICK
O P E R A T I N G I N S T R U C T I O N S | VISIC100SF
Subject to change without notice
ADJUSTMENT
7
7.4.4
Performing zero point adjustment
Procedure
1
Screw the hose adapter for synthetic air (marked pink) into the thread under the sensor
to be calibrated.
2
Attach the hose for synthetic air (marked pink) to the hose adapter.
3
Screw the closed sampling valve (marked pink) onto the test gas cylinder with synthetic
air.
4
Connect the corresponding transition piece (marked pink) to the tapping valve.
5
Connect the open end of the hose to the transition piece.
6
On the calibration tool: Menu: “Confirm”
→
Installation & Calibration
→
Calibrate
→
DP1
→
Open zero.
7
Press “Confirm”.
>>> Current actual value is displayed.
8
Open the sampling valve for feeding the test gas.
9
Press “Confirm” to start the adjustment procedure.
>>> New zero offset is calculated.
>>> During the calculation, an underscore runs from left to right in the 2nd line.
>>> The actual value drops to “0”.
10
When the actual value is stable, press “Confirm” and finish calculation of the value.
>>> “Save“ appears.
>>> After successful saving, a square is briefly displayed on the right.
>>> Zero point adjustment is finished. New zero point offset is saved.
>>> Display automatically changes to the display of the current actual value (new zero point).
11
Press “ESC”.
12
Close the gas sampling valve to stop the gas sampling.
13
Pull the hose off the hose adapter.
14
Remove the hose adapter.
Possible malfunction messages
see “Adjust zero point”, page 19
Note:
The flow rate is set to a fixed value of 0.5 l/min for all gases.
