Checking Measurement Precision; Calibration - Flex ADL 30 Original Operating Instructions

FLEX ADL 30/60/120
Inserting/changing batteries ................... 164
Switching the device on and off ............. 166
Setting unit of measurement .................. 168
Displays ................................................. 170
Switching acoustic signal on and off ...... 172
Setting reference angle .......................... 174
Using the memory .................................. 176
Using the laser ....................................... 178
Checking precision ................................ 180
Calibrating the measuring instrument .... 182

Checking measurement precision

Check precision of the measuring instrument
– before starting work,
– after large temperature changes
– after violent impacts.
Before measuring angles up to 45°, check
the precision on a horizontal surface (~0°),
before measuring angles over 45°, vertical
surface (~90°).
The steps required to check the precision
are explained at the end of these instructions
on the illustrated pages.
See from page 180.
For deviations of >0.1° calibrate the measu-
ring instrument.
16

Calibration

See also from page 182.
– Position contact surface on a straight
surface which is as level as possible.
Mark position! Switch on device and press
the REF button until CAL 1 flashes.
Shortly afterwards an acoustic signal
sounds and CAL 2 is displayed.
– Now turn the spirit level horizontally by 180°
and place exactly on the marked area
(reversal measurement).
Press the REF button again until CAL 2
flashes. The following acoustic signal
ends the process.
Concluding test: The device is correctly
calibrated when the same measured values
are displayed in both positions (0° and 180°).
If the precision deviates from the permitted
tolerance range, the device must be taken
to a customer service workshop authorised
by the manufacturer.
Have the device adjusted by authorised
technicians only.