Emerson Micro Motion SGM Series User Manual

Specific gravity and molecular weight meters: Compressibility Method and valid ranges for
process variables
Table 8-3:
Compressibility
Method
Valid range
Temperature Pressure
Specific
gravity % CO2 % N2 % H2
AGA NX-19
−40 to
+115.556 °C
1.01325 to
345.751 BarA
0.55 to 1 0–15% 0–15% 0–15%
AGA NX-19 Mod
−40 to
+115.556 °C
0 to 137.9
BarA
0.554 to 0.75 0–15% 0–15% N/A
AGA NX-19 Mod 3
0 to 30 °C 0 to 80 BarA 0.554 to
0.691
0–2.50% 0–7% 0–4%
Relative density meters: Compressibility Method and valid ranges for process variablesTable 8-4:
Compressibility
Method
Valid range
Temperature Pressure
Relative
density % CO2 % N2 % H2
SGERG-88
−30 to
+100 °C
0 to 120 BarA 0.55 to 0.9 0–30%
(1)
0–50%
(1)(1)
N/A
(1) The sum of CO2 and N2 must be less than 50%.
8.3.3
Configure energy content measurement using the
Field Communicator
The energy content parameters are used to measure and calculate calorific value, Wobbe
index, and energy flow.
Prerequisites
You must be able to supply gas composition data to the meter, for the following
constituents:
• Carbon monoxide (CO)
• Carbon dioxide (CO2)
• Nitrogen (N2)
• Hydrogen (H2)
Gas composition must be measured in % by volume.
If you plan to measure energy flow, you must be able to supply flow data to the meter. You
have the following options:
• If you are using an external volume flow device, Volume Flow (External) and Mass
Flow (Calculated) are available.
• If you are using an external mass flow device, Mass Flow (External) and Volume Flow
(Calculated) are available.
Configure process measurement using the Field Communicator
80 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