Instruction Manual

5
Signet 2724-2726 and 2734-2736 Series pH and ORP Electrodes
The Signet pH/ORP electrodes are designed to install in tanks by attaching conduit to the ¾ in. threads at the top of the
accompanying preamplifi er or sensor electronics:
1. The O-ring at the top of the electrode fi ts very tightly into the preamplifi er. Use a small amount of non-petroleum based
lubricant to assist the assembly.
2. To prevent moisture from migrating into the preamplifi er, backfi ll the conduit with 3 in. to 4 in. of sealant.
3. Mount electrodes in a location with ample clearance to remove them for periodic cleaning and recalibration.
4. Choose a location that keeps the electrode glass completely submersed at all times.
Technical Note:
• Mount the electrode near tank outlets,
away from reagent addition areas.
• Use the ¾ in. threads at the top of the preamplifi er
to run the cable inside pipe or conduit.
• Place the electrode tip in pH 4 buffer during system
maintenance or storage to avoid dehydration.
Type Description Type Description
Plastic tees
PVC saddles
Iron
strap-on
saddles
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8QLYHUVDO
pipe adapters
Signet Installation Fittings
Submersible Installations
Lubricate
O-rings
Fill with
3 to 4 in.
of sealant
1
2
Open
tanks
Closed
tanks
3
3
4
Removing from In-Line Installations
In-line removal Instructions:
1. Depressurize and vent the piping system.
2. Drain the system to below sensor level.
3. Wear safety goggles or face shield during removal.
Use all appropriate eye, face, hand, body and/or respiratory
protection when working with chemicals or solvents.
4. Place a Lockout tag on the pipe when the sensor is
removed for maintenance to prevent accidental opening
and exposure to potentially hazardous chemicals.
• The use of this product assumes
that operators are trained and are
familiar with this type of device.
• They should be knowledgeable of
the potential risks associated with
pressurized piping systems.
• Operators MUST follow all
necessary safety procedures.
The user must supply the following hardware
to complete a submersible installation:
• ¾ in. NPT threaded pipe or conduit
• Wiring junction box
• Pipe clamps (quick-release type recommended)
• Tank fl ange for closed tanks
Submersible Installation
2724-2726 / 2734-2736 with 2750/2760 Preamplifi er