MODEL 396P and 396PVP

SECTION 7.0

 

DIAGNOSTICS AND TROUBLESHOOTING

SECTION 7.0

DIAGNOSTICS AND TROUBLESHOOTING

7.1 MODEL 54e/81/3081/4081/5081/Xmt DIAGNOSTICS AND TROUBLESHOOTING

The Model 54 Analyzer and Models 81 and 3081 Transmitters automatically search for fault conditions that would cause an error in the measured pH value, as does the Model 1054B pH/ORP Analyzer to a lesser degree. Refer to the applicable Instruction Manual for a complete description of the analyzer’s fault conditions.

Table 7-1, below, lists the Model 54’s, 4081’s, 3081’s, and 81’s diagnostic messages that indicate a possible sen- sor problem. A more complete description of the problem and a suggested remedy corresponding to each mes- sage is also listed.

TABLE 7-1. Troubleshooting with Advanced Diagnostics

DIAGNOSTIC MESSAGE

 

 

 

 

54

 

 

 

 

3081/81/4081

DESCRIPTION OF PROBLEM

REMEDY

 

 

 

 

“Calibration Warning”

1. Aged glass.

1.

Perform buffer calibration.

 

2.

Sensor not immersed.

2.

Be sure electrode measuring tip is in

/-[5ES-U1

 

 

 

process.

“Cracked glass failure”

Broken or cracked glass.

Replace sensor.

([-<<!I-5[

 

 

 

 

 

 

 

 

 

“High reference impede”

1.

Liquid junction coated.

1.

Clean sensor; replace if necessary.

 

2.

Reference Cell gel depleted.

2.

Replace sensor.

S12!I-5[ or S12!@M-SP

3.

Sensor not immersed.

3.

Be sure electrode measuring tip is in

 

 

 

 

process.

“Input voltage high”

pH input shorted or sensor

Check wiring. Replace sensor if

“Input voltage low”

miswired.

necessary.

 

 

 

 

 

“Old glass warning”

1.

Glass electrode worn out.

1.

Replace sensor.

([D<<!@M-SP

2.

Sensor not immersed.

2.

Be sure electrode measuring tip is in

 

 

 

process.

 

 

 

 

“Reference offset err”

Reference electrode poisoned.

Replace sensor.

(offline only)

 

 

 

 

<UG!1SS

 

 

 

 

 

 

 

 

“Ref voltage high”

1.

Reference shorted or sensor

Check wiring and installation. Replace

“Ref voltage low”

miswired.

sensor if necessary.

 

2.

Sensor not immersed

 

 

“Sensor line open”

1.

Open wire between sensor and analyzer.

1.

Check sensor wiring.

 

2.

Interconnecting cable greater than

2.

Relocate analyzer.

[5P1!2-5[

 

1000 ft.

 

 

 

 

 

 

 

“Sensor miswired”

1.

Open wire between sensor and analyzer.

1.

Check wiring.

 

2.

Bad preamplifier.

2.

Replace preamplifier. (Code 02 only)

 

 

 

 

“Temp error high”

1.

Open or shorted RTD.

1. Replace sensor.

“Temp error low”

2. Temperature out of range.

2. Check process temperature.

U17:!45

 

 

 

 

U17:![9

 

 

 

 

 

 

 

 

 

27

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Emerson Process Management 396P Section Diagnostics and Troubleshooting, Diagnostic Message, Description of Problem Remedy
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396P, 396PVP specifications

Emerson Process Management has established itself as a leader in the automation industry, providing innovative solutions that enhance operational efficiencies and improve process control. Among its notable offerings are the 396PVP and 396P pressure transmitters, designed to meet the needs of various industrial applications.

The 396PVP model is equipped with advanced features that facilitate high-performance measurements in both challenging and standard environments. This pressure transmitter utilizes a piezoresistive sensor, allowing for accurate and reliable pressure readings. It supports a wide range of measurement capabilities, making it suitable for liquids, gases, and vapors across diverse industries. With an impressive pressure range, the 396PVP caters to various applications, from HVAC systems to more demanding scenarios in oil and gas extraction.

In terms of technology, the 396PVP leverages digital communication protocols, including HART and FOUNDATION Fieldbus, enabling seamless integration into existing control systems. This capability not only enhances data transmission but also facilitates remote monitoring and diagnostics, significantly reducing downtime and maintenance requirements. The transmitter is also designed with an intuitive interface, allowing for straightforward configuration and calibration via handheld devices or software.

On the other hand, the 396P model offers exceptional performance for demanding pressure measurement requirements. It features robust construction materials that ensure durability and resistance to harsh environments, making it an ideal choice for applications in chemical processing and power generation. The 396P is designed with a fast response time, ensuring real-time data accuracy, which is critical for maintaining process integrity and safety.

Both models showcase Emerson's commitment to safety and reliability. They are built to meet stringent industry standards, which guarantees quality performance in hazardous locations. Furthermore, the embedded diagnostic features provide real-time health monitoring, alerting operators of any potential issues before they escalate, thereby safeguarding operations.

In summary, the 396PVP and 396P pressure transmitters from Emerson Process Management exemplify cutting-edge technology and high-quality engineering. With their advanced sensing capabilities, robust design, and integration-friendly features, these transmitters are essential tools for optimizing process control and enhancing overall productivity in various industrial settings. Whether it's for precise measurements in a chemical plant or reliable pressure readings in an oil field, the 396 series offers the performance and durability required to thrive in today's demanding operational landscapes.
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