Variable Flow Calibration - Gambro AK 95 S Service Manual

Calibrations

Variable flow calibration

This calibration will set the number of steps
needed to obtain a flow of 500 ml/min.
This value will then be used during functional
check and when entering service mode as the
flow always should be 500 ml/min in functional
check and service mode.
1. Start the AK 95 S, enter the Service menu
and select Calibrations.
2. Place A-pickup tube in the concentrate
container.
3. Select Other / Variable flow to initiate the
calibration.
Note: If variable flow is not installed following
attention will be displayed:
VARIABLE FLOW IS NOT INSTALLED
Check preset
4. Following text will be displayed during the
calibration:
STEPS: XXX FLOW: ---- ml/min
Please wait. Press HOLD to abort
STEPS: the position of the stepper motor
FLOW: the average dialysis flow
5. When the AK 95 S machine has found a
new calibration value it will automatically
store the value in the Safe-RAM.
Following text will automatically appear:
ADJUSTING VARIABLE DIALYSIS FLOW
Please wait XX seconds
6. At the end of the calibration the new
calibration data is displayed:
VAR. FLOW MOTOR POSITION STORED
NEW VALUE: XXX
7. Press HOLD to finish the calibration.
Note: During this calibration it is possible to
supervise the conductivity and temperature.
6:16
OLD VALUE: YYY
AK 95 / AK 95 S Service Manual
HCEN 9138 Rev. 10.2005