prepaid gas meter
prepaid gas meter
| meter variant | g1.6 | g2.5 | g4 |
| maximum flow rate (m³/h) qmax | 2.5 | 4 | 6 |
| minimum flow rate (m³/h) qmin | 0.016 | 0.025 | 0.04 |
| normal flow rate (m³/h) qnorm | 1.6 | 2.5 | 4 |
| max working pressure (mbar) | 500 | 500 | 500 |
| pressure absorption (mbar, initial) | ＜2 | ＜2 | ＜2 |
| maximum error limit at 20°c(qt≤q≤qmax) | ±1.5% | ±1.5% | ±1.5% |
| maximum error limit at 20°c(qmin≤q＜qt) | ±3% | ±3% | ±3% |
| cyclic volume (dm3) | 0.8/1.2 | 0.8/1.2 | 1.2 |
| casing | aluminum | aluminum | aluminum |
| starting flow rate (dm³/h) qstart | 1 | 1 | 1 |
| connection centers |
110mm, 130mm (other type on request) |
110mm, 130mm (other type on request) |
110mm, 130mm (other type on request) |
| gas connections | g11/4”&g3/4” | g11/4”&g3/4” | g11/4”&g3/4” |
| weight (kg) | 2.0/2.4 | 2.0/2.4 | 2.4 |
| max index reading (m³) | 99999.999 | 99999.999 | 99999.999 |
| operating temperature (℃) | -10 to 40 | -10 to 40 | -10 to 40 |
| storage temperature (℃) | -30 to 60 | -30 to 60 | -30 to 60 |
| standard temperature setting (℃) | 20 in default, settable | 20 in default, settable | 20 in default, settable |
| operating humidity | maximum 95% rh | maximum 95% rh | maximum 95% rh |
| meter life time | over 10 years | over 10 years | over 10 years |
| meter warranty period | 1 year | 1 year | 1 year |
| battery life time | 1-2 years (standard configuration) | 1-2 years (standard configuration) | 1-2 years (standard configuration) |
| battery type | dc 6v (1.5v*4) aa | dc 6v (1.5v*4) aa | dc 6v (1.5v*4) aa |
| atex safety | eex i.e. iia | eex i.e. iia | eex i.e. iia |
