5
2750 DryLoc pH/ORP Sensor Electronics
3.
Unlock the ring on base of 2750 (The ring is unlocked when
the lines on the ring and body of the 2750 are not aligned.)
4.
Place 2750 onto top of electrode and turn
until the assembly drops into position.
5.
Turn locking ring
1
/
4
turn to secure the 2750 assembly.
(The ring is locked when the line on the ring and
the line on the body of the 2750 are aligned.)
NOTE:
Keep the electrical interconnection between electrode and
sensor electronics dry and clean at all times.
In-Line Sensor and Electrode Removal
•
To remove electronics assembly only:
Turn locking ring
1
/
4
turn; lift assembly straight up.
•
To remove electrode from the pipe:
Remove electronics assembly, then unthread retaining nut; pull electrode straight up.
•
To remove the complete 2750 system:
Hold locking ring in place. Unthread retaining nut and pull electrode straight up.
CAUTION!
• Do not remove the electrode from a pressurized pipe.
• Wear appropriate protective clothing when working with chemicals in pressurized pipe.
Locked
The molded alignment marks
are enhanced for clarity.
2750 In-Line Assembly
1.
Insert electrode into base of the
2750-3 or 2750-4 and turn until
keyed contacts are seated.
NOTE:
Lubricate O-ring if
installing sensor is dif
fi
cult.
2.
Thread retaining nut over
electrode and hand-tighten
onto 2750.
3.
Attach
¾
in. watertight pipe to the top of the 2750.
Secure the threaded connection to prevent any leakage.
*
For additional defense against possible accumulation
of condensation at the back seal area of the sensor,
fi
ll
the lower 75 mm to 100 mm (3 in. to 4 in.) of conduit or
extension pipe with a
fl
exible sealant such as silicone.
NOTE:
Keep the electrical interconnection
between electrode and sensor
electronics dry and clean at all times.
2750-3: ¾ in. NPT threads
2750-4: ISO 7-1/R
¾
threads
Lubricate O-rings with a
non-petroleum based, viscous
lubricant (grease) compatible
with the system.
2750-3, 2750-4 Submersible Installation
221 mm
(8.7 in.)
Unlocked
The molded alignment
marks are enhanced
for clarity.
Locking Ring
LUBRICATE O-RINGS WITH A NON-PETROLEUM BASED,
VISCOUS LUBRICANT (GREASE) COMPATIBLE WITH THE SYSTEM.
