Instructions
For Mk2 Water Level Meters (Push-Release Cable Connection)
Note: Instructions for Mk1 Water Level Meters are on page 3 (Molex
cable connection).
Tools and Materials Needed
1. 102M SC100 Replacement Faceplate Assembly (#109740)
2. Phillips or Robertson (Square Head) Screwdriver
3. Small (3 mm) Flat Screwdriver
4. 10 mm Wrench or Pliers
Light
Test
Button
102M Replacement Faceplate Assembly
indicating the location of the components
(comes with handle attached and 3 Phillips screws)
1. Place the reel on a flat surface, with the faceplate up. Use
the Phillips screwdriver to undo the three screws holding the
faceplate to the hub. Remove the faceplate.
2. Disconnect the battery.
3. To disconnect the cable from the circuit board, press
down on the white terminals of the push-release fittings on
the circuit board and pull out to remove the cable leads.
Remember how they were connected.
4. Unscrew the nut from the test button and push the button
out of the faceplate.
5. Use the small flat screwdriver to unscrew the small brass
screw on the side of the sensitivity knob. Remove the
sensitivity knob. Use the pliers to unscrew the nut holding
the sensitivity switch and remove the switch from the
faceplate.
6. Unscrew the two screws holding the circuit board (and leads
from light if you have an older style light – see photo at
top right) to the Sonalert (watch for proper connection/
polarity).
(Page 1 of 3)
Water Level Meter Faceplate Replacement
Sonalert
Sensitivity
Switch
Handle
High Quality Groundwater and Surface Water Monitoring Instrumentation
7. If you have an older style light (see photo below) push the
light out of the faceplate.
Sensitivity
Switch
Leads
From Light
Test Button
(under circuit board)
Back of Mk2 102M Faceplate with Older Style Light
Sensitivity
Switch
Push-Release
Fittings
Back of Mk2 102M Faceplate with New Style Light
8. Remove the circuit board assembly with connected
wires, test button, sensitivity switch, and new style light if
connected (see photo above).
9. If you have a new style light, unscrew the red lens from the
faceplate.
Model 102M
Sonalert
Light
Push-Release
Fittings
Battery
Connector
Sonalert
Light (under
circuit board)
Test Button
Battery
Connector
Battery
Connector
Need help?
Do you have a question about the 102M and is the answer not in the manual?
Questions and answers