SGM70XX Datasheet, PDF (2/9 Pages) List of Unclassifed Manufacturers – Pressure independent & temperature compensated

The customer needs to fine-adjust meter calibration in air
only. No further calibration or testing with natural gas on
the customer side is needed. Sensirion provides
consulting and support regarding fine-adjustment of
calibration.
1. Sensor Performance¹
Sensor performance is described for fine-adjusted product in template gas meter housing. Please note that a sensor built in
customer meter housing can achieve inhere specified performance only after fine-adjustment procedure.
1.1 Specification of Flow Rates
Qmin
Qt
Qmax
Qsaturation³
Qoverflow⁴
neg. saturation
pos. saturation
Qreverse⁵
SNR⁶ @ 0.25 Qmin
(relevant for min. detectable flow rate)
Unit
slm ⁽²⁾
scmh ⁽²⁾
slm ⁽²⁾
scmh ⁽²⁾
slm ⁽²⁾
scmh ⁽²⁾
slm ⁽²⁾
slm ⁽²⁾
SGM7001
0.267
0.016
4.17
0.25
41.67
2.5
-9
53
SGM7002
0.416
0.025
6.66
0.4
66.7
4.0
-15
85
2 Qmax
- 0.2 Qmax
10
SGM7004
0.67
0.04
10
0.6
100
6
-24
130
SGM7006
1.0
0.06
16.7
1
167
10
-39
255
1 _{Sensirion guarantees specifications of the SGM70xx module only.}
2 _{slm: standard liter per minute; scmh: standard cubic meter per hour; conditions: T = 15°C and P = 1013 mbar.}
3 _{Qstauration is defined as minimum / maximum linearized flow output value of the SGM70xx module.}
4 _{Qoverflow is defined as overflow that does not damage the SGM70xx module.}
5 _{Qreverse = maximum negative flow for which the initial accuracy applies as defined in Table 1.2 Physical specification.}
6 _{Signal to noise ratio, 𝑆𝑁𝑅 =} ^{Mean Signal Amplitude}
Std. Dev. Signal Amplitude
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