
Instructions
For Mk1 Water Level Meters (Molex Cable Connection)
8. Undo the Sonalert retaining ring from the front of the faceplate,
and remove the Sonalert.
9. Insert the Sonalert through the opening in the new faceplate
and secure with the retaining ring.
10.Feed the wires connected to the light through the hole in the
front of the faceplate, and snap the light into place.
11.Resolder the red and black wires to the circuit board. Use the
screws to reconnect the wire connections to the Sonalert (red
wires to the positive terminal and black wires to the negative).
12.Place the test button through the faceplate and secure using
the nut.
13.Place the sensitivity switch through the faceplate and secure
with the nut. Orient the switch as shown in the photo
above. Replace the knob on the sensitivity switch and secure
with the screw.
14.Position the wiring around the Sonalert so the circuit board is
between the light and the Sonalert with components facing
away from the Sonalert. Wrap the battery connector leads
around the wires to provide extra strain relief. See photo
above.
15.Replace the rubber band around the electronics to hold the
wiring in place.
16. Connect the 2-Pin Molex Connector to the Cable Molex
Connector. Reconnect the battery.
17.With the probe in a glass of tap water, turn the Mini Water
Level Meter to the ‘ON’ position. If the connections are
correct the buzzer and light on the Meter will activate. Check
the connections if the buzzer does not sound.
18.Position the new faceplate on the reel and secure with the
three screws.
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
5. Solder Iron and Wire
Back of Mk1 102M Faceplate showing wiring connections
and the location of the components
Battery
Connector
Circuit
Board
Molex
Connector
Handle
Light
Sensitivity
Switch
Test
Button
Sonalert
102M Replacement Faceplate Assembly
indicating the location of the components
(comes with handle attached and 3 Phillips screws)
Light
Test
Button
Sonalert
Sensitivity
Switch
Handle
1. Remove the faceplate by unfastening the three screws on
the front. Unplug the 2-Pin Molex Connector from the
Cable Molex Connector. Disconnect the battery.
2. There should be a rubber band holding the internal wiring
snug against the Sonalert, remove the band to access the
wiring.
3. From the front of the faceplate, use a small flat screwdriver
to undo the screw holding the sensitivity switch knob.
Remove the knob.
4. Use the wrench or pliers to undo the nut holding the
sensitivity switch to the faceplate. Note the location and
push the switch through the faceplate.
5. Use the wrench or pliers to undo the nut holding the test
button to the faceplate. Note the location and push the
button through the faceplate.
6. Undo the two screws from the wire connections on the
Sonalert. On the circuit board, unsolder the black and red
wires that attach to the connections on the Sonalert. Note
the position of the wires on the circuit board.
7. Push the light out through the front of the faceplate and feed
the wires through.
Note: Instructions for Mk2 Water Level Meters (cable connection on
circuit board) are on page 1.
Printed in Canada
March 13, 2018
(#109932)
(Page 3 of 3)
For further information contact: Solinst Canada Ltd.
Fax: +1 (905) 873-1992; (800) 516-9081 Tel: +1 (905) 873-2255; (800) 661-2023
35 Todd Road, Georgetown, Ontario Canada L7G 4R8
®Solinst is a registered trademark of Solinst Canada Ltd.