> For the complete documentation index, see [llms.txt](https://docs.lorric.com/qr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lorric.com/qr/fu-tx310-ultrasonic-flowmeter-manual-en-v3/4-setting-up-the-interface/4.2-units.md).

# 4.2 Units

|                   |                                                                                                                                                                                                                                                                                                                                                                                       |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Measurement Unit  | Metric or Imperial units                                                                                                                                                                                                                                                                                                                                                              |
| Flow Numerator    | <p></p><ol><li>m³ (Cubic meter)</li><li>L (Liter) = 10-3 \* m³</li><li>gal (US gallons) = 3.785412 \* 10-3 m³</li><li>igl (Imperial gallons) = 4.54609 \* 10-3  m³</li><li>mgl (million US gallons) = 3785412 \* 10-3 m³</li><li>cf (Cubic feet) = 28.3164847 \* 10-3 m³</li><li>bal (US liquid barrel) = 35.23907 \* 10-3m³</li><li>ob (Oil barrel) = 158.987295 \* 10-3m³</li></ol> |
| Flow Denominator  | <p></p><ol><li>sec (seconds)</li><li>min (minutes)    </li><li>hr (hours)    </li><li>day (days)</li></ol>                                                                                                                                                                                                                                                                            |
| Totalizer Units   | Same as flow denominator (volume) units                                                                                                                                                                                                                                                                                                                                               |
| Totalizer Decimal | Up to 7 digits can be set; decimal point position can be changed.                                                                                                                                                                                                                                                                                                                     |
| Enable NET Total  | Turns net cumulative flow on or off <mark style="color:orange;">(</mark>~~<mark style="color:orange;">note that cumulative flow automatically zeroes at > 4,000,000,000,000 m3 ).</mark>~~                                                                                                                                                                                            |
| Enable POS Total  | Turns positive cumulative flow on or off ~~<mark style="color:orange;">(cumulative flow automatically zeroes at > 4,000,000,000,000 m3 ).</mark>~~                                                                                                                                                                                                                                    |
| Enable NEG Total  | Turns negative accumulated flow on or off ~~<mark style="color:orange;">(accumulated flow automatically zeroes at > 4,000,000,000,000 m3 )</mark>~~                                                                                                                                                                                                                                   |
| Reset Totalizer   | Can be zero net, positive, or negative cumulative flow, or all zero at the same time.                                                                                                                                                                                                                                                                                                 |
| Temperature Unit  | <p>Set temperature units: </p><p>1. °C (degrees Celsius) </p><p>2. °F (degrees Fahrenheit)</p>                                                                                                                                                                                                                                                                                        |


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