Emerson Rosemount 396P Quick Start Manual page 49

November 2020
5.2.6 Transmitter cannot be standardized
Potential cause
Electrode coated.
Recommended actions
Potential cause
Defective preamplifier.
Recommended action
Replace preamplifier.
5.2.7 Transmitter short spans between two different buffer values
Potential cause
Aged glass electrode or high temperature exposure.
Recommended action
Replace the sensor.
Potential cause
Electrode coated.
Recommended actions
Potential cause
Air bubbles trapped in sensor end between glass bulb and sensor body.
Recommended action
Shake the sensor in solution.
See
Quick Start Guide
1. Clean sensor as recommended in
platinum electrode.
2. Replace sensor if cracked.
1. Clean sensor as recommended in
platinum electrode.
2. Replace sensor if cracked.
Install for mounting guidelines.
Quick Start Guide
Clean electrode or
Clean electrode or
Clean
Clean
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