Solinst 464 125 psi Configuration guide

Control Unit Solenoid Valve Cleaning Instructions
High Quality Groundwater and Surface Water Monitoring Instrumentation
(Page 1 of 2)
Model 464 125 psi (sold until January 2016)
Continued on page 2...
Tools and Materials Needed
1. 3/32" Allen Key
2. Small Utility Knife
3. 9/64" Allen Key
4. Cotton swab
5. Distilled water
6. Any suitable plastic adhesive (e.g. silicon)
Hex
Screws
Hex
Screws
3. Remove the panel from the Control Unit and flip it over to
access the Solenoid Valve Assembly.
Panel
4. Use the small utility knife to break any adhesive seal that is
holding the Solenoid connector to the circuit board.
Solenoid Valve
Assembly
5. Carefully, pull to remove the Solenoid connector from the
circuit board.
Solenoid
Connector
Solenoid
Connector
6. Remove the tubing from the three fittings on the Solenoid
Valve Assembly, by pushing on the “grasping ring” on the
fitting (to release tubing) and pulling the tubing out.
Fitting “Grasping Ring”
Fitting “Grasping Rings”
7. Use the 9/46" Allen key to remove the two screws holding
the Solenoid Valve Assembly to the bracket.
Remove
Screws
Instructions
Note: These instructions are for Model 464 125 psi Control Units
sold up until January 2016.
1. Turn the Control Unit off and remove the batteries.
2. Use the 3/32" Allen key to undo the four hex screws on the
sides of the Control Unit.

Printed in Canada
January 22, 2016
(Page 2 of 2)
For further information contact: Solinst Canada Ltd.
Fax: [phone] Tel: [phone]
35 Todd Road, Georgetown, Ontario Canada L7G 4R8
Web Site: www.solinst.com E-mail: [email protected]
8. By hand, unscrew the brass fitting from the Solenoid Valve
Assembly, and pull out to remove the magnetic plunger from
the steel fitting.
9. Inspect the small rubber circular pad on the end of the plunger.
If this pad is damaged, dented, etc., the Solenoid will not
seal properly, therefore you may need a new Solenoid Valve
Assembly. (Contact Solinst). See photo below comparing a
damaged pad to a pad in good condition.
Magnetic
Plunger
®Solinst is a registered trademark of Solinst Canada Ltd.
10.To clean the Assembly, use a cotton swab and distilled water
to clear any debris and dirt from inside the brass fitting, around
the o-ring, steel fitting and from the magnetic plunger.
11.Ensure the o-ring is properly seated inside the brass fitting.
Insert the magnetic plunger back into the Solenoid Valve
Assembly, and screw the brass fitting back onto the Assembly.
12.Mount the Solenoid Valve Assembly to the bracket using the
two screws.
13.Push the tubing into the three fittings. Refer to the photo on
Page 1, to ensure proper connection.
14.Reconnect the Solenoid connector to the circuit board. After
connection, add a small amount of adhesive to the outside of
the connector to help secure it to the circuit board.
15.Place the panel in the Control Unit case and reinstall the four
hex screws.
16.Reinstall the batteries. Test the Control Unit to ensure proper
connections were made and the Solenoid is now functioning.
Steel Fitting
Brass
Fitting
Note: The photo above shows the tubing fittings removed from the
Solenoid Valve Assembly, you do not need to remove these.
O-ring
Magnetic
Plunger