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 |
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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 |