4
3
.
Technical Design
1. Hi-resistant polycarbonate protective display
2. Wet contacts
3. Sealed cable
4. Two sealing O-rings
4.
Switching On and Start of Work
To start the work turn off the protective display 1 and insert AAA
battery 1.5V into the slot (mind the polarity!).
Ensure that sealing O-rings 4 are clean and are not damaged.
Lubricate them with a thin layer of silicone grease prior to placing the
protective display back.
HUD-A will automatically switch on and internal testing will start upon
inserting the battery. In case of successful testing all indicator LEDs
will flash three times.
