Emerson Micro Motion SGM Series User Manual

For 2-point calibrations, two calibration coefficients (K0 and K2) are calculated and used in
measurement.
For 3-point calibrations, three calibration coefficients (K0, K1, and K2) are calculated and
used in measurement.
Postrequisites
To restore normal gas flow, close the calibration valve (Valve B) and open the isolation
valve (Valve D) and the input valve (Valve A).
Related information
Functional view of the SGM
Troubleshooting SGM calibration
5.4.4 Troubleshooting SGM calibration
If one of the calibration point measurements does not stabilize within 30 minutes, abort
the calibration and check for problems.
Typical problems include the following:
• The calibration gas does not have a consistent composition. Check for settling or
stratification.
• The calibration gas is not flowing. Ensure that the pressure of the calibration gas is
15% to 25% higher than the control pressure, then check for obstructions in the gas
path.
• The reference chamber or the gas path is leaking. Check for leakage.
Depending on the problem, you may be able to restart the calibration at the abort point.
Related information
Check for leakage
5.5
Review data for all calibrations
ProLink III Device Tools > Calibration Data
Field Communicator Configure > Manual Setup > Calibration Factors
Overview
For all calibrations, you can review the gas data and sensor time period data that was used
to calculate the calibration factors, and you can review the calibration factors.
Purging and calibration
46 Micro Motion
®
Gas Specific Gravity Meters (SGM)

Emerson Micro Motion SGM Series Specifications

General

Brand	Emerson
Model	Micro Motion SGM Series
Category	Measuring Instruments
Language	English