SGM70XX Datasheet, PDF (3/9 Pages) List of Unclassifed Manufacturers – Pressure independent & temperature compensated

1.2 Physical specifications
Parameter
Temperature
Humidity
Initial accuracy⁷
(for T = 15°C)
1.1.1.1 Initial pressure drop of
SGM70xx module without
Meter-Housing
Description
Operating Temperature
Storage Temperature
Operating humidity of the medium in
the gas meter when medium is air
(testing purposes)
Operating Humidity of the medium in
the gas meter when the medium is
natural gas
Storage Humidity (in Air)
Flow range: Qreverse ≤ Q ≤ -Qmin
Flow range: -Qmin < Q < Qmin
Flow range: Qmin ≤ Q < 0.1Qmax
Flow range: 0.1Qmax ≤ Q ≤ Qmax
Flow range: Qmax < Q
Pressure drop at Qmax
Value
-25 to 55
-30 to 60
35 – 75
0 – 40
35 – 85
+/-10
Not defined
+/- 3.0
+/- 1.5
Not defined
<1.5
Unit
°C
°C
% RH
% RH
% RH
% m.v.⁸
% m.v.⁸
% m.v.⁸
mbar in air
1.3 Initial accuracy over temperature⁷
For meters with temperature compensation, the European standard EN14236 allows additional +0.5 % m.v. in the temperature
range 0° – 30°C. Outside 0° – 30°C, the standard allows additional +0.5 % m.v./10°C. The initial accuracy values over
temperature are listed in the table below. Please note that the specified values are valid only after fine-adjustment with
assembled meter has been performed.
Flow range
Q < Qmin
Qmin ≤ Q < 0.1·Qmax
0.1·Qmax ≤ Q ≤ Qmax
Qmax < Q
-30°C
≤T<
-20°C
Not defined
±5% m.v. ⁸
±3.5% m.v. ⁸
Not defined
MPE
-20°C
-10°C
≤T<
≤T<
-10°C
0°C
Not defined
Not defined
±4.5% m.v. ⁸
±4% m.v. ⁸
±3% m.v. ⁸
±2.5% m.v. ⁸
Not defined
Not defined
0°C
≤T≤
30°C
Not defined
±3.5% m.v. ⁸
±2% m.v. ⁸
Not defined
7 _{One measurement value is specified for an average of at least ten consecutive acquisitions. The value measured with a single acquisition (one single data acquisition) may}
be outside the specified accuracy range.
8 _{In % of measured value (m.v.) = of rate = of reading}
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