Acorn 80 User Manual

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ACORN 80 Maintenance & Service Manual
APPENDIX 7
Levelling and Main Drive Encoder Testing
All voltages are measured with ref to ground. (0V)
Checking the output of the accelerometer
With the lift level, check the voltage at the point
shown in the photo. This should be between
2.45-2.75V. Offset = 2.6V
Calibrating the accelerometer
Check the voltage at the point shown. If required set
the reading to 2.5V by adjusting the potentiometer.
Leveling chip voltages
The supply voltage for the levelling chip can be
measured on PIN1. (Approximately 5V)
The calibrated accelerometer voltage can now be
checked on PIN 2.
Accelerometer Testing
5V
SUPPLY
PIN 1
PIN 2
2.5V
IF THE POTENTIOMETER NEEDS TO BE ADJUSTED AND THE LIFT HAS ALREADY BEEN
PROGRAMMED, THE WHOLE RAIL MUST BE RE-PROGRAMMED.

Acorn 80 Specifications

General

Safety Features	seatbelt
Speed	0.15 m/s
Seat Type	Padded
Footrest	Flip-up
Foldable	Yes
Color Options	Beige
Power Supply	Battery powered (2 x 12V sealed lead acid batteries)