381 Датчик pH/ОВП

381 Датчик pH/ОВП

The Rosemount Analytical Model 381 Transmitter measures the pH, or oxidation-reduction potential (ORP) of aqueous solutions in pipes, open tanks, or ponds.

The sensor is suitable for use in most industrial applications including wastewater treatment plants.

The sensor is housed in a PES molded body and has two threaded O-rings to secure the cover. This ensures long life waterproofing and easy disassembly for routine maintenance. The modular chassis design eliminates the need for internal mounting brackets, terminal brackets, and screws. All components are screw-type or plug-in type, ensuring fast and easy maintenance.

Technological information and specifications
Structural materials Body, lid and flowcell: Polyethersulfone (PES)

O-rings: Viton

Measuring electrode: Glass (platinum or gold in Model 381 ORP)

Solenoid bridge: Kynar / wood or

Kynar / ceramics

Grounding solution: 316 stainless steel

Process connection of sensor Immersion: 3/4 inch, MNPT

Flush mount: 2 inch MNPT

Flow cell 3/4 inch, MNPT inlet and outlet
Measurement range ORP: -1500 to +1500 mV
pH; ACCUGLASS ™ 5 0-14
Minimum electrical conductivity 75 μS / cm, nominal 100 μS / cm
Temperature compensation Automatic temperature compensation within the range from 0 to 100 °C
Pressure Max. 790 kPa (absolute)  at 100 °C
Operating Temperature from -10 to 100°C
Cable 10 conductors, shielded cable
Weight / gross weight 1 kg / 1.7 kg

The Rosemount Analytical Model 381 Transmitter measures the pH, or oxidation-reduction potential (ORP) of aqueous solutions in pipes, open tanks, or ponds.

The sensor is suitable for use in most industrial applications including wastewater treatment plants.

The sensor is housed in a PES molded body and has two threaded O-rings to secure the cover. This ensures long life waterproofing and easy disassembly for routine maintenance. The modular chassis design eliminates the need for internal mounting brackets, terminal brackets, and screws. All components are screw-type or plug-in type, ensuring fast and easy maintenance.

Technological information and specifications
Structural materials Body, lid and flowcell: Polyethersulfone (PES)

O-rings: Viton

Measuring electrode: Glass (platinum or gold in Model 381 ORP)

Solenoid bridge: Kynar / wood or

Kynar / ceramics

Grounding solution: 316 stainless steel

Process connection of sensor Immersion: 3/4 inch, MNPT

Flush mount: 2 inch MNPT

Flow cell 3/4 inch, MNPT inlet and outlet
Measurement range ORP: -1500 to +1500 mV
pH; ACCUGLASS ™ 5 0-14
Minimum electrical conductivity 75 μS / cm, nominal 100 μS / cm
Temperature compensation Automatic temperature compensation within the range from 0 to 100 °C
Pressure Max. 790 kPa (absolute)  at 100 °C
Operating Temperature from -10 to 100°C
Cable 10 conductors, shielded cable
Weight / gross weight 1 kg / 1.7 kg