Graf oneAdvanced Operation Manual page 78

1. step: Calibrate pressure sensor
It is absolutely essential that the sensor is calibrated for starting up underload detection. Please
carefully work through the following points in order.
Measure level
Enter service
code:
* * * *
Calibrate
◄ No Yes ►
Measurement un-
derway
000 cm
Current level
Save
◄ No Yes ►
Offset XX cm
9. Additional controller functions
Use a dipstick to measure the level from the bottom of the tank to the
water level, and note this.
oneAdvanced 3–9 PE: Measure in the SBR reactor
oneAdvanced larger than 12 PE: Measure in preliminary cleaning
Open the menu "Service", press [OK], and enter for the calibration
the following code:
oneAdvanced 3–9 PU: 8 8 8 8
oneAdvanced larger than 10 PE: 9 9 9 9
Using the cursor keys [◄] [►], select "Calibrate Yes", and confirm with
[OK] to start calibration.
3 measurement processes are undertaken automatically.
Enter the level you have measured, and confirm this with [OK].
Measuring the level:
On plants from 10 PE, measurements must be taken in the first cham-
ber or tank.
This offset is the distance c between the tank base and the lifter's blow-
in point (for lifter calibration). Using the cursor keys [◄] [►], select
"Save Yes" to end calibration.
78 / 137