Operating Instructions REFO 3 / REFO 3-D
4
B
Operation
B1 Controls
REFO 3 is operated with the three blue keys next to and below the display and the large
blue Meas/ON key on the instrument’s side.
Display
Angle selector key
Program key
Statistics key
Meas./On-key
Figure 1: REFO top view
Figure 2: REFO side view
Angle selector key:
to select the viewing angle
Program key:
to select the program
Statistics key:
for statistical evaluation of set-off measurements
Meas/ON-key:
to turn on REFO and trigger a measurement
The keys have special functions during the input of calibration and standard values and
during statistics mode.
B2 Initial Start-Up
Charging the batteries
The electrical power supply is provided by four rechargeable batteries, type LR6 AA Mi-
gnon. They are located in the battery compartment at the rear of the instrument.
In order to charge the batteries
plug the charger plug into the mains/charging socket
connect the charger / power supply to the socket-outlet
The batteries are loaded automatically within 14 hours. You can continue measuring
during the charging procedure (but the charging period will be longer).
Exchanging the batteries
Note:
When exchanging the batteries, all stored meas-
urements will be lost if the cover of the battery compart-
ment is lifted-off while the instrument is on. Therefore wait
for the automatically shut-down before exchanging the
batteries.
To exchange the batteries:
Lift-off the cover of the battery compartment (see fig. 3)
Take-off all batteries
Figure 3: REFO rear view
Put fresh batteries into the compartment as shown in the sketch
Battery
Compartment
mains / charging
socket
