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Emerson Micro Motion SGM Series User Manual

Emerson Micro Motion SGM Series
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Procedure
1. Close the isolation valve, the input valve, the calibration valve, and the purge valve
(Valve D, Valve A, Valve B, and Valve F.
2. Open the exit valve (Valve C).
3. Open the chamber filling valve (Valve E).
4. Set the pressure regulator to the working pressure of the system.
5. Open the isolation valve (Valve D).
6. Open the input valve (Valve A) and allow gas to flow for three minutes.
7. Close the exit valve (Valve C).
8. Observe the control pressure indicator. When it is at the desired control pressure:
a. Close the input valve (Valve A) and open the purge valve (Valve F).
b. Allow the gas to vent to atmospheric pressure.
9. Purge-cycle the device.
a. Close the purge valve (Valve F) and open the input valve (Valve A).
b. Observe the control pressure indicator. When it is at the desired control
pressure, close the input valve (Valve A) and open the purge valve (Valve F).
c. Allow the gas to vent to atmospheric pressure.
d. Repeat this step for the required number of cycles, as determined by the
following equation:
NumberPurgeCycles =
21
MaxRegulatorPressure
10. Close the purge valve (Valve F) and open the input valve (Valve A).
11. When the control pressure reaches the desired value, close the chamber filling valve
(Valve E).
The reference chamber is now filled with the reference gas at the control pressure.
Important
After the reference chamber has been filled, do not open the chamber filling valve (Valve E) again.
Related information
Functional view of the SGM
5.4
Calibrate the SGM device
The SGM device must be calibrated for your process gas.
Calibrate the SGM device using the display (Section 5.4.1)
Calibrate the SGM device using ProLink III (Section 5.4.2)
Purging and calibration
36 Micro Motion
®
Gas Specific Gravity Meters (SGM)

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Emerson Micro Motion SGM Series Specifications

General IconGeneral
BrandEmerson
ModelMicro Motion SGM Series
CategoryMeasuring Instruments
LanguageEnglish

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