+GF+ SIGNET 3719 pH/ORP Wet-Tap Manual

‡ SIGNET 3719 pH/ORP Wet-Tap
3-3719.090
• Do not exceed maximum temperature/pressure specifications.
• Wear safety goggles or face shield during installation/service.
• Do not attempt to disassemble the retraction housing and the
electrode piston.
• Do not alter product construction.
• Failure to follow safety instructions may result in severe
personal injury.
• Retract electrode before any pipe cleaning operation.
1. Description
The +GF+ SIGNET 3719 pH/ORP Wet-Tap allows installation and removal of pH or ORP electrodes without the need for process
shutdown during routine electrode maintenance and calibration. Process isolation is achieved with a double O-ring seal on a unique
and compact retraction assembly; no separate valve is required. A cam-activated automatic locking mechanism, SafeLoc™, and the
short stroke design help to assure operator safety.
2. Specifications
Wet-Tap
• Compatible sensors:
• Shipping Weight:
• Process Connection:
• Operating Pressure:
bar psi
8.3
120
100
6.9
5.5 80
4.1 60
2.8
1.4 20
15 25
59 77
• Materials:
• Retraction Housing (Wetted): CPVC
• O-rings (Wetted):
• Locking Shroud:
• Hardware:
• Maximum Flow Velocity:
Environmental
• Storage Temperature:
• Process Temperature:
Electrode
• Compatibility:
• Connector (CPVC):
• Efficiency:
• Response Time:
• Drift:
• Operating Range:
• Accuracy:
‡ SIGNET 3719 pH/ORP Wet-Tap
B-6/02 English
2716-WT Twist-Lock pH Electrode
2717-WT Twist-Lock ORP Electrode
2756-WT DryLoc™ pH Electrode
2757-WT DryLoc ORP Electrode
Approx. 1.2 kg (2.7 lbs.)
3719-11: 1.5 in. NPT
3719-21: 2 in. NPT
3719-12: ISO 7/1-R1.5
3719-22: ISO 7/1-R2
100 psi (6.9 bar) maximum
35 45 55 65 75 85 °C
95 113 131 149 167 185 °F
Temperature
FPM
PVC
316 SS
10 ft/s
-15 to 120°C (5 to 248°F)
0 to 80°C (32 to 176°F)
+GF+ SIGNET 3719 Wet-Tap
Twist-Lock or DryLoc
> 97% @ 25°C (77° F)
pH: <5s for 95% of signal change
ORP: Application dependent
< 2 mV per week
pH: 0 to 14 pH
ORP: -2000 to +2000 mV
± 0.1% over full range
• Reference Junctions:
• Electrolyte:
• Elements:
• Temp. Sensor (pH):
• Temp. response time ( τ):
• Temp. & Pressure Limit:
• Sodium Ion Error:
• Impedance (pH):
• Wetted Materials:
Body:
Junctions:
Sensing surface:
O-rings:
• Shipping Weight:
Environmental
• Storage Temperature:
• Process Temperature:
Low Profile Clamp-on Saddle Fittings:
• Size Range:
• Materials
• Saddle body (wetted):
• Gasket (wetted):
• Saddle Hardware:
• Reinforcement Ring:
bar psi
12.0 175
2.5, 3, 4, 10 & 12 in. Saddles
150
10.3
8.6 125
6.9 100
6 in. Saddle
8 in. Saddle
5.2 75
3.4 50
1.7 25
-10 -4 10
14 25 50
• Process Temperature:
Standards/Approvals
• Wet-Tap: Manufactured under ISO 9001 and ISO 14001
• Electrodes: Manufactured under ISO 9001
ENGLISH
1. Description
2. Specifications
3. Dimensions
4. 3719 System Overview
5. Installation
6. Electrode Application
7. Maintenance & Cleaning
8. Ordering Information
Porous PTFE
3.5M KCl
Ag/AgCl
3K Balco (3-2716-WT)
PT-1000 (3-2756-WT)
438 s
100 psi @ 65°C (6.9 bar @ 149°F)
< 0.05 pH in 0.1 molar
Na+ ion at 12.8 pH
<150 MΩ @ 25°C
Glass
Porous PTFE
Glass Membrane (pH)
Platinum (ORP)
FPM
0.13 kg (0.3 lb)
0° to 85°C (32° to 185°F)
0° to 85°C (32° to 185°F)
2.5 to 12 in. ASTM
Polypropylene (Grade 8, ASTM
D2565, 1-8, UV stabilized)
FPM
316 SS
430 SS
24 38 °C
75 100 °F
40°C (104°F) maximum
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