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OMEGA PHE/ORE Series pH/ORP Electrode Instructions
OMEGA PHE/ORE Series pH/ORP Electrode Instructions
1. Technical Data
1.1 General
Compatibility: OMEGA PH-2720-PA Twist-Lock Preamplifier
Pipe Size Range:
•
1
/2 in. and up.
• Use OMEGA installation fittings to 4 in.
• Use pipe adapter in pipes over 4 in.
• Submersion with PH-2720-PA pre-amplifier requires
3
/4 in.
NPT or ISO 7-R
3
/4 in. male threaded extensions
Efficiency: >97% @ 25°C (77° F)
Wetted Materials: CPVC Body
Glass
FPM O-rings
Porous UHMW Polyethylene reference
junctions
ORP: Platinum sensing surface
Primary Functions: PHE-3271, ORE-2715: Flat surface
resists fouling
PHE-2716, ORE-2717: Bulb surface for
general use
PHE-3271-HF: Extended use in
applications with trace hydrofluoric acid
(<2%)
PHE-2716-DI: Extended use in pure
waters (<100 µS)
Secondary Junction: Nylon Filament
Element: Ag/AgCl
Shipping Weight: 0.2 kg (0.4 lb)
1.2 PHE-3271 and PHE-2716 pH Electrodes
Operating Range: 0 to 14 pH (PHE-3271-HF: 0 to 12 pH)
Reference: Electrolyte: Solidified Acrylamide Gel
3.5M KCI (PHE-3271, PHE-3271-HF,
PHE-2716)
0.1 M KCl (PHE-2716-DI)
Temperature Sensor: 3KΩ Balco (3000Ω = 25°C)
ResponseTime: <5 s for 95% of signal change
Response Time, τ: 140 s (PHE-3271), 196 s (PHE-2716)
1.3 ORE-2715/ORE-2717 ORP Electrodes
Operating Range: -999 to +999 mV
Reference: Electrolyte: Solidified Acrlyamide Gel
3.5M KCL
Response Time: Application dependent
1.5 Dimensions
Flat electrode Bulb electrode
1.4 Temperature and pressure specifications
ORP electrode operating Temperature/Pressure
• 6.89 bar @ 0°C to 65ºC (100 psi @ 32° to 149° F)
• 4.00 bar @ 66ºC to 85°C (58 psi @150° to 185°F)
PHE-2716 and PHE-2716-DI pH electrode operating Temperature/
Pressure
• 6.89 bar @ 0°C to 65ºC (100 psi @ 32° to 149° F)
• 4.00 bar @ 66ºC to 85°C (58 psi @150° to 185°F)
PHE-3271 pH electrode operating Temperature/Pressure
• 6.89 bar @ 10°C to 65ºC (100 psi @ 50° to 149° F)
• 4.00 bar @ 66ºC to 85°C (58 psi @150° to 185°F)
PHE-3271-HF pH electrode operating Temperature/Pressure
• 6.89 bar @ 0°C to 50ºC (100 psi @ 32° to 122° F)
Storage Temperature: > -12° C (11° F)
1.0 in.
(27 mm)
0.9 in.
(23 mm)
4.1 in.
(104 mm)
3.4 in.
(86 mm)
1.2 in.
(30.5 mm)
2.6 in.
(65 mm)
1.0 in.
(27 mm)
1.2 in.
(30.5 mm)
2.6 in.
(65 mm)
0.9 in.
(23 mm)
3.4 in.
(86 mm)
3.8 in.
(97 mm)
50
3
PSIBAR
50
122
75
167
25
77
0
10
32
50
25
2
75
5
100
7
°F
°C
PHE-3271
PHE-3271-HF
SAFETY INSTRUCTIONS
1. Depressurize and vent system prior to installation or removal.
2. Confirm chemical compatibility before use.
3. Do not exceed maximum temperature/pressure specifications.
4. Wear safety goggles or faceshield during installation/service.
5. Do not alter product construction.
6. When using chemicals or solvents care should be taken and appropriate eye, face, hand, body,
and/or respiratory protection should be used.