SGD-3T Diaphragm Gas Meter with Temperature Compensator


The gas meter is equipped with a temperature compensator SGD-3T which performs correction of registration of the gas meter depending on the temperature of the gas within a range from – 40oC to +35 oС°.
 
The additional relative error of a gas meter caused by a deviation of a temperature of a gas being measured from normal temperature (20±3)oC should not exceed ±0,1 % in comparison with the basic relative error at temperature change by 1oC, and for a temperature above +35 oC - 0,45 %.
 
The gas meter is designated for operation at a temperature from – 40 oC to +50oC.
 
The pulse output device is embedded in gas meters of versions SGD-3T, SGD-3T-2I which allows to embed gas meters in the system of automated collection and processing of information.
 
Technical Data:
Standard Size
G4
G6
 
SGD-3T-1-1
SGD-3T-2-1
SGD-3T-1-1
SGD-3T-2-1
 
SGD-3T-1-2
SGD-3T-2-2
SGD-3T-1-2
SGD-3T-2-2
Gas rated consumption Qrated, m³/h
4
6
Gas maximum consumption Qmax, m³/h
6
10
Gas minimum consumption Qmin, m³/h
0,04
0,06
Maximum operating pressure, kPa
60
Measurement error:
 
 
 
 
- at consumption from Qmin to 0,1 Qrated, % , max.
±3
- at consumption from 0,1 Qrated to Q max., % , max.
±1,5
Threshold response, m³/h, max
0,002Qrated
Operating temperature, °С
-40 - +50
Distance between nipple axes, mm
-40 - +35
Thread on connection of gas meter GOST 6357-81
200±0,5
250±0,5
200±0,5
250±0,5
 
G1 1/4
Overall dimensions, mm
 
 
 
265х185х250
310х185х245
265х185х250
310х185х245
Weight, max., kg
 
 
3,8
4,3
3,8
4,3
Calibration interval, years
 
8
Gas meter life time, years
20
Warranty life, months
24
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