12. Insert the test button through the opening in the faceplate,
and secure it in place using the nut.
13. Insert the sensitivity switch through the faceplate with the
three connection prongs positioned towards the battery
drawer, slightly towards the centre of the reel. Tighten the
nut. Fasten the sensitivity knob on the front of the switch
using the brass screw.
14. Connect the black wire with quick-connect fitting to the
negative terminal on the battery tray. Connect the red wire
with quick-connect fitting to the positive terminal.
Back of Mk1 Water Level Meter Faceplate
Note:
Instructions for Mk2 Water Level Meters are on Page 1
(tape connection using push-release fittings on circuit board
and quick-connect fittings to battery tray).
Back of Fully Assembled Water Level Meter Faceplate
(Page 2 of 3)
15. Connect the tape to the new circuit board assembly by
pressing down on the white terminals on the circuit board
and inserting the tape leads. Release the terminals and the
leads should be secured. The lead on the bottom of the tape
(numbers facing up, may be black mark on lead) is inserted
into the terminal with a white square below it on the circuit
board.
16. Install the battery.
17. With the probe in a glass of tap water, turn the Water Level
Meter to the ‘ON’ position. If the connections are correct
the buzzer and light will activate. If the buzzer or light do
not activate, check all connections and the polarity of the
battery.
18. Reattach the faceplate to the reel using the three screws.
Instructions
For Mk1 Water Level Meters (Molex Tape Connection)
Tools and Materials Needed
1. Mk2 Circuit Board Assembly (#102977) Includes:
• Wiring, Sensitivity Switch and Knob, Light and Red
Lens, and Test Button
2. Phillips Screwdriver
3. 10 mm (3/8") Wrench
4. Wire Cutters
5. Small Flat Screwdriver (3 mm (1/10")
6. Pliers
Sensitivity
Switch
Sonalert
Light
Battery
Tray
Test Button
Molex
Connector
1. Remove the battery. Unscrew the three screws and remove
the faceplate.
2. Disconnect the Molex connector that connects the circuit
board to the tape.
3. Cut the red and black wires from the battery tray.
4. From the front of the faceplate, use the wrench to unscrew
the nut holding the test button and push the button back
out of the faceplate.
5. Cut the red and black wires connected to the light, and
push the light out through the front of the faceplate.
Sonalert
Sensitivity
Switch
Light
Battery
Tray
Test Button
Push-Release
Fittings
Square
High Quality Groundwater and Surface Water Monitoring Instrumentation
Water Level Meter Circuit Board Replacement