Troubleshooting

11.12Meter fingerprinting

The meter fingerprinting feature provides snapshots, or “fingerprints,” of twelve process variables, at four different points of transmitter operation. See Table 11-6.

Table 11-6 Meter fingerprinting data

Fingerprint time

Description

Process variables recorded

 

 

 

 

Current

Present-time values

• Mass flow rate

• Tube frequency

 

 

• Volume flow rate

• Drive gain

Factory

Values at time transmitter left factory

• Density

• Left pickoff

 

 

Installation

Values at time of first sensor zero

• Temperature

• Right pickoff

 

 

• Case temperature

• Board temperature

Last zero

Values at time of most recent sensor zero

• Live zero

• Input voltage

 

 

 

 

 

 

For all process variables except Mech Zero, the instantaneous value, 5-minute running average,

5-minute running standard deviation, recorded minimum, and recorded maximum are recorded. For Mech Zero, only the 5-minute running average and 5-minute running standard deviation are recorded.

To use the meter fingerprinting feature:

1.From the ProLink menu, select Finger Print.

2.Use the Type pulldown list to specify the point in time for which you want to view data.

3.Use the Units pulldown list to specify SI or English units.

The display is updated continuously.

Note: Due to the continuous updating, the meter fingerprinting feature can have a negative effect on other sensor-transmitter communications. Do not open the meter fingerprinting window unless you plan to use it, and be sure to close it when you no longer need it.

11.13Troubleshooting filling problems

If the fill cannot be started:

•Check the status LED on the transmitter.

-If it is solid red, the transmitter is in a fault condition and a fill cannot be started. Correct the fault condition and retry. The cleaning function may be useful.

-If it is solid yellow, the transmitter is in a low-severity fault condition, such as slug flow, or the fill flow source, target, or discrete outputs are not correctly configured.

Note: A fill can be started under some low-severity fault conditions.

If the system is in slug flow, try using the cleaning function, or pulsing fluid through the sensor by turning the discrete outputs ON and OFF (if the valves are controlled by discrete outputs). The Test Discrete Output function can be used for this.

•Ensure that the fill is correctly and completely configured:

-A flow source must be specified.

-A non-zero positive value must be specified for the fill target.

-All outputs required for valve control must be configured.

Compensation

Measurement Performance

Troubleshooting

Defaults

Configuration and Use Manual

101

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Emerson Process Management 1500 manual Meter fingerprinting data, Troubleshooting filling problems
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1500 specifications

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