FRESENIUS MEDICAL CARE
MEDICAL TREATMENT CHAIR
INSTRUCTION MANUAL - T688B Series
Page 8 of 20
IFU T688B V2 Apr 2021
3.3.2 Programming Instructions
This can only be don
e using the nurse’s hand control. A maximum of three
positions may be programmed into the memory as follows:
1. Position the chair to the desired position using the up & down arrows for
the backrest, whole chair and leg rest.
2. When the chair is in the desired position, hold down the S (store) button
for five seconds until beep sounds.
3. Once the beep is sounding, select one of the numbers, 1, 2 or 3 and
press it within two seconds to store the pre-programmed position.
3.3.3 Recalibration
If there is a loss of feedback from any of
the actuators, a ‘position lost’ beep will be heard from
the control box when any button is pressed.
Recalibrate
T688B Series
chair
as follows using the nurse’s hand control:
1. Press both up and down arrows of the Height function simultaneously and hold until the
beeping stops (approximately five seconds). NOTE: both UP and Down buttons must be
activated at exactly the same time.
2. Press both up and down arrows of the Backrest control function simultaneously and hold until
all the actuators have stopped moving. This will drive the backrest actuator in to the fully
retracted (down), the leg rest actuator in to the fully retracted (down) position and HI/LO
actuator into the fully retracted (down) position. When completed the system will beep two
times to confirm.
Note: If system does not beep when all of the actuators have stopped, please contact
Fresenius Medical Care or authorised agent at the contact details provided in Section 5 of
this manual for further engineering advice as engineering assistance will be required.
3. The system can now be reprogrammed using the instructions in section 3.3.2.
