Emerson Process Management
381
instruction manual
PH/ORP Sensor
Specs
Install
Warranty
Maintenance
Accessories
Section Ultrasonic Cleaner
Temperature
Features and Applications
Page 1
Instruction Manual
PN
51-381/rev.E
March 2010
Model 381
pH/ORP Sensor
Page 1
Page 2
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Contents
PH/ORP Sensor
Essential Instructions
Model 381 pH/ORP Sensor
About This Document
Features and Applications
Section Description and Specifications
Materials of Construction
Sensor Specifications
Measuring Range pH
Pressure Rating 790 kPa abs at 100C 100 psig at 212F
Example
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Section Installation
Model 381 Sensor Component Locator Diagram
Section
Submersion Installation Diagram
Flow Through Installation Diagram Code 03 or
Retro-Fit Kit Code 04 Flow Powered Cleaner, Model
40038105
40038103
40038116
Model 381 ORP
START-UP and Calibration
Calibration
Section Maintenance
Temperature C Millivolt Potential 268 264 260
Troubleshooting Probable Cause Remedy
Temperature
Temperature vs Resistance of Auto
Element
Model 381 Spare Parts
Accessories
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Section Ultrasonic Cleaner
Operation
40038156
40037505
Section Return of Material
NON Warranty Repair
Return of Materials Request
Return of Material
Warranty
Specifications subject to change without notice
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