pH/ORP Electrodes

High Pressure & High Temperature pH & ORP Electrodes

The 102029 pH electrode and 102963 ORP electrode are designed to function where other electrodes cannot. In room temperature water, they can handle up to 500 psi. In low pressure installations, they can handle up to 275°F (135°C) without melting.

In all cases, pH/ORP electrode life will be maximized by operating at room temperature, and the expected life span at temperatures above 140°F (60°C) will be short. But if low temperature operation is impossible, these electrodes will fit the bill.

SPECIFICATIONS

Reference cell: Double junction, Na2 SO4 + KCl , Ag/AgCl

Cable lead: 10 ft. (3.05 m) length with BNC connector

Membrane impedance (pH): 150 megaohms at 77°F (25°C)

Zero potential (pH): 0 mV ±12 @ pH 7

Operating Temperature: 23° to 275°F (-5° to 135°C) @ 200 PSI (1.38 MPa)

Operating Pressure: 500 PSI (3.45 MPa) @ 77°F (25°C)

Maximum Flow Velocity: 10 ft./sec (3 m/sec)

Range: 0 to 14 pH, -1000 to 1000 mV

Output voltage (pH): 58.7 ±0.3 mV per pH unit

Drift: Less than 2 mV per week

Sodium error (pH): Less than 0.5 pH unit typical in 0.1 Na+ @ 12.8 pH