
Insertion/Submersion Combination Electrodes
PHE-7151-15 Series
The PHE-7151 Series combination electrodes are ruggedly 
constructed; the outer body is ABS with ³⁄₄ MNPT threads at both 
ends. The maximum insertion length is 31.75 mm (1.25"). Electrodes 
are annular PTFE liquid junction refillable and include 4.6 m (15') of 
cable with a BNC connector. For applications with temperatures up to 
120°C (248°F), units are available in polyphenylene sulfide (PPS).***
These electrodes have a special plunger  
design allowing them to be mounted at any angle.
To Order Visit omega.com/phe7151_5312_ore7151 for Pricing and Details
   Length  Dia.  pH  Temp.  Refill  R M Ω Price 
 Model No.  mm (inch) mm (inch) Range  °C (°F)  or Gel 
 PHE-7151-15 140 (5.5)  30 (1.2)  0 to 12 0 to 80 (32 to 176)  Refill  400  Refillable general purpose** 
 PHE-7351-15 140 (5.5)  30 (1.2)  0 to 12 0 to 80 (32 to 176)  Gel  400  Sealed general purpose 
 PHE-7152-15 140 (5.5)  30 (1.2)  0 to 14 0 to 80 (32 to 176)  Refill  1000  Refillable high pH applications** 
 ORE-7151-15 140 (5.5)  30 (1.2)  —  0 to 80 (32 to 176)  Refill  —  General purpose refillable ORP**
Comes complete with operator’s manual.
** Refill Solution: PHFS-7151-4, 4 oz bottle
*** For polyphenylene sulfide body, add suffix “-PPS” to model number 
for additional cost.
PHFS-7151-16, 16 oz bottle.
PHEH-71-4, 48-inch extension for PHE-7151-15 electrode. 
Ordering Examples: PHE-7151-15-PT100-PPS, refillable general purpose
electrode, 4.5 m (15') cable with BNC connector, 100 Ω PT RTD ATC 
and optional polyphenylene sulfide body.
PHE-7351-15, sealed general purpose electrode, 4.5 m (15') cable, 
with BNC connector.
at 25°C (77°F)
 Description
Heavy-Duty Extension Cables 
for Industrial Electrodes
In-Line Disposable Electrodes
OMEGA in-line combination electrodes mount on standard 
pipe tees for continuous pH or ORP monitoring. The 
electrode is constructed in a Kynar housing with ¹⁄₂ MNPT 
threading. Probe insertion length is 25 mm (1")  
and is able to withstand pressure up to 150 psi.  
3 m (10') cable length and BNC connector are standard. 
Dimensions: 127 x 25 mm (5 x 10")
A
 Model No. BNC to BNC  Length meters (feet)
 PHEC-B10HD  3.0 (10) 
 PHEC-B25HD  7.6 (25) 
 PHEC-B50HD  15.3 (50)
CPVC In-Line Disposable pH Electrodes
Also available, the CPVC in-line disposable electrode is ruggedly 
constructed to withstand up to 100 psi. Probe insertion length  
is 51 mm (2") with ³⁄₄" diameter. A ³⁄₄ MNPT fitting is standard and is 
supplied with 3 m (10') of cable and a BNC connector.  
Dimensions: 168 x 25 mm (6.6 x 10").
B
       Temperature    RMΩ 
   Model No.  ph Range  Range °C (°F)  Notes  at 25°C (77°F)
 A  PHE-5311-10  0 to 13  -5 to 100 (23 to 212)  General purpose  50 
 A  PHE-5312-10  0 to 14  0 to 100 (32 to 212)  High pH  200 
 A  PHE-5411-10  0 to 13  -5 to 100 (23 to 212)  Double junction  50 
 A  PHE-5412-10  0 to 14  0 to 100 (32 to 212)  Double junction high pH  200 
 A  ORE-5311-10  ORP  -5 to 100 (23 to 212)  Platinum band  — 
 A  ORE-5411-10  ORP  -5 to 100 (23 to 212)  Platinum band double junction  — 
 A  ORE-5419-10  ORP  -5 to 100 (23 to 212)  Gold disc double junction  —
         for cyanide applications 
 B  PHE-5316-10  0 to 13  -5 to 80 (23 to 176)  Sealed Ag/AgCl  50
Automatic temperature compensation is not required with ORP (redox) electrodes. 
Ordering Example: PHE-5311-10, 0 to 13 general purpose electrode.
D-59
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