In-Line Installation - GF Signet 276 Differential Series Operating Instructions Manual

In-Line Installation

1. 2774 and 2775 electrodes can be mounted at any angle
2. Diff erential (276X series) electrodes must be mounted at a
downward angle (> 15° from horizontal)
3. 275X Wet-Tap electrodes must be mounted in a 3719
Assembly at any angle
4. Avoid air pockets and sediments
5. Select a Signet installation fi tting (0.5" to 4" size range) for
convenience. Lightly lubricate o-ring with a non-petroleum
based lubricate (grease) compatible with the system.
6. Use the ¾ in. M-NPT or ISO 7/1-R ¾ threads on the electrode
body to install the electrode into reducing tee fi ttings.
7. Inspect threads to ensure integrity. Do not install an electrode
with damaged threads.
8. Apply PTFE tape to the M-NPT or ISO 7/1-R ¾ process
connection threads, in accordance with industry standards.
9. Use piping installation hardware with smooth,
well-fi nished threads to facilitate the installation.
10. If necessary, the pipe should be plumbed with a depression
(trap) so liquid is maintained around the electrode tip.
11. Hand-tighten the electrode into the process connection.
Do not use any tools to install the electrode.
The use of wrenches, pliers or similar may over-stress the
sensor body and lead to breakage and
subsequent spillage of the process liquid.
CAUTION:
A broken sensor may be ejected
forcefully from the fi tting and can cause
severe injury.
12. The safety instructions have an
adhesive label and should be placed
near the sensor.
NOTE:
When mounting in a standard threaded
fi tting, the electrode must be mounted
horizontal to 60 degrees below horizontal
position only:
0°
YES YES
-15°
NO
NO
277X
4 Signet 275X, 276X, 2777X Series pH and ORP Electrodes
3-2700.615 (B-04/08)
WARNING
SAFETY INSTRUCTIONS
1. Use appropriate eye, face, hand, body
and/or respiratory protection when using
chemicals or solvents
2. Prior to installation or removal:
a. Depressurize and vent system
b. Drain below sensor level
3. Confirm chemical compatibility before use
4. Do not exceed the maximum
temperature/pressure specifications
5. Do not alter product construction
If installing into a threaded connection:
6. Inspect threads to ensure integrity. Do not
install a sensor that has damaged threads
7. Apply PTFE tape to the process connection
threads in accordance with industry
practices
8. Hand tighten the sensor into the process
connection. DO NOT USE TOOLS
Failure to follow
these instructions may
result in personal injury
See peel & stick warning label on back!
Attach near sensor
+15°
276X
NO
YES
YES
YES
0°
Horizontal
YES
YES
YES
275X Wet-Tap with 2751 or 2760 and
3719 pH/ORP Wet-Tap Assembly
1) Choose sensor; 2) Choose preamplifi er or sensor electronics;
3) Choose Wet-Tap assembly; 4) Choose customer supplied
mounting option
1
2 OR
2760
Preamplifier:
3-2760-11
3-2760-21
3
4
Customer supplied Tees and Fittings
YES
275X Wet-Tap
Wet-Tap pH or
ORP Sensor:
3-2756-WTP
3-2756-WTP-1
3-2757-WTP
2751 Smart Sensor
Electronics:
3-2751-1
3-2751-2
3719 Wet-Tap Assembly:
3-3719-11
3-3719-12
3-3719-21
3-3719-22