
| Measurement Range | USM-MN-G1.6: 0.016~2.5 m³/h [0.57~ 88.29 ft³/h] USM-MN-G2.5: 0.025~4 m³/h [0.88~ 141.26 ft³/h] USM-MN-G4: 0.04~6 m³/h [1.41~ 211.88 ft³/h] | USM-MP-G1.6: 0.016~2.5 m³/h [0.57~ 88.29 ft³/h] USM-MP-G2.5: 0.025~4 m³/h [0.88~ 141.26 ft³/h] USM-MP-G4: 0.04~6 m³/h [1.41~ 211.88 ft³/h] | USM-MN-L-G1.6: 0.016~2.5 m³/h [0.57~ 88.29 ft³/h] USM-MN-L-G2.5: 0.025~4 m³/h [0.88~ 141.26 ft³/h] USM-MN-L-G4: 0.04~6 m³/h [1.41~ 211.88 ft³/h] | USM-MP-L-G1.6: 0.016~2.5 m³/h [0.57~ 88.29 ft³/h] USM-MP-L-G2.5: 0.025~4 m³/h [0.88~ 141.26 ft³/h] USM-MP-L-G4: 0.04~6 m³/h [1.41~ 211.88 ft³/h] |
| Accuracy | Class 1.5 | Class 1.5 | Class 1.5 | Class 1.5 |
| Error (-25℃~+55℃) | Qmin≤Q<0.1Qmax: ±3% 0.1Qmax≤Q≤Qmax: ±1.5% | Qmin≤Q<0.1Qmax: ±3% 0.1Qmax≤Q≤Qmax: ±1.5% | Qmin≤Q<0.1Qmax: ±3% 0.1Qmax≤Q≤Qmax: ±1.5% | Qmin≤Q<0.1Qmax: ±3% 0.1Qmax≤Q≤Qmax: ±1.5% |
| Additional permissible error outside the temperature range from -25℃ to +55℃ for every 10℃ deviation from the range limit | - | - | ±4% | ±4% |
| Gas Medium | Natural Gas/Natural Gas+23%H2 | LPG | Natural Gas/Natural Gas+23%H2 | LPG |
| Power Supply | 3~3.6VDC | 3~3.6VDC | 3~3.6VDC | 3~3.6VDC |
| Dimension (mm) | 108.2*40.1*52.9 | 108.2*40.1*52.9 | 108.2*40.1*52.9 | 108.2*40.1*52.9 |
| Weight (g) | 70 | 70 | 70 | 70 |
| Temperature Measurement | YES | YES | YES | YES |
| Working Pressure | 0~20kPa / 0~2.90psi | 0~20kPa / 0~2.90psi | 0~20kPa / 0~2.90psi | 0~20kPa / 0~2.90psi |
| Pressure Loss | 200pa / 0.029psi or less (at Qmax) | 200pa / 0.029psi or less (at Qmax) | 200pa / 0.029psi or less (at Qmax) | 200pa / 0.029psi or less (at Qmax) |
| Working Temperature | USM-MN/MP-Series: -25℃~+55℃/-13℉~+131℉ | USM-MN/MP-Series: -25℃~+55℃/-13℉~+131℉ | USM-MN/MP-L-Series: -40℃~+60℃/-40℉~+140℉ | USM-MN/MP-L-Series: -40℃~+60℃/-40℉~+140℉ |
| Storage Temperature | USM-MN/MP-Series: -25℃~+70℃/-13℉~+158℉ | USM-MN/MP-Series: -25℃~+70℃/-13℉~+158℉ | USM-MN/MP-L-Series: -40℃~+70℃/-40℉~+158℉ | USM-MN/MP-L-Series: -40℃~+70℃/-40℉~+158℉ |
| Ex-proof Grade | ExibIIBT4 Gb | ExibIIBT4 Gb | ExibIIBT4 Gb | ExibIIBT4 Gb |