Step 2: Testing The Handpieces; Step 3: Setting The Speed - Nouvag OFA-Drill Bedienungsanleitung

7.4.2

Step 2: Testing the handpieces

To make sure the displayed parameters correspond with the actual, measurable parameters of the
handpiece, it is recommended to test each handpiece on a regular basis.
It's a procedure as simple as it is important to guarantee safety and precision for each handpiece being
used.
After taking care of all prior preparations such as sterilization, maintenance and care of handpieces, device
preparation and the selection of the handpiece of use, the calibration procedure can be performed.
The testing of handpieces guarantees for accurate torque. Due to wear as well as varying lubrication of
the handpieces and lack of maintenance and care, the distribution of torque can widely vary.
1. Press the "Handpiece" -key to select the correct handpiece, corresponding to the one mounted on the
motor, and double check on the display for correct selection.
2. Hold motor with mounted handpiece in your hand, in safe distance to your body.
3. Press both "Speed" keys at the same time (Speed ▲ + ▼). "Testing the handpiece XX" is displayed.
4. Motor and handpiece start running and pass several speed cycles up to maximum speed.
5. After a tone is emitted the test is finished. The display shows "Handpiece XX is OK".
If the Handpiece is not working according to the values of the look up chart, the device produces an error
message and the display is illuminated red and shows the message "Handpice XX is faulty".
This indicates soiling, wearout or a technical defect. These Handpieces must be cleaned, repaired or
exchanged.
7.4.3

Step 3: Setting the speed

The possible speed range depends on the attached handpiece. The maximum speed within this speed range
can be restricted to the required value.
Using the pedal, the speed can be varied from the minimum speed up to the maximum speed as set.
The micro saws work with a fixed speed of 15,000 rpm and cannot be altered.
Setting the speed:
Press the "Speed" keys "▲" to increase or "▼" to decrease the maximum speed. When key is pressed
continuously the speeds will be shown in fast forward mode.
12 OFA-Drill operating instructions, ref. 31595, V49/15