> 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-v3/1-product-introduction/1.1-specifications.md).

# 1.1 Specifications

|                                 |                                                                                                                                                                                                                                                                   |
| ------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ■ Installation method           | Tube clamps                                                                                                                                                                                                                                                       |
| ■ Measurement principle         | Time differential                                                                                                                                                                                                                                                 |
| ■ Flow rate range               | ±0.1\~20m/s                                                                                                                                                                                                                                                       |
| ■ Measurement accuracy          | <±2 %                                                                                                                                                                                                                                                             |
| ■ Response time                 | <1 second                                                                                                                                                                                                                                                         |
| ■ Resolution                    | 0.0001 m/s                                                                                                                                                                                                                                                        |
| ■ Wired communication           | <p>Analog output 4-20 mA </p><p>Modbus RS485 Two-line NPN                           <mark style="color:orange;"><strong>(</strong>The 4-20mA output resolution is specified as 12-bit, ensuring precise analog signal representation<strong>)</strong></mark></p> |
| ■ Probe-to-host distance        | <p>TM-1 10 meters (Up to 20 meters)</p><p>TS-2 10 meters</p>                                                                                                                                                                                                      |
| ■ Temperature measurement       | Two sets of external PT1000                                                                                                                                                                                                                                       |
| ■ Temperature range             | -100\~300℃ with 0.1°C resolution                                                                                                                                                                                                                                  |
| ■ Device working temperature    | -10\~60°C(14\~140°F)                                                                                                                                                                                                                                              |
| ■ Applicable fluid              | Clean water, oil or chemical with minor impurities                                                                                                                                                                                                                |
| ■ Wall temperature              | <p>Standard probe: 0~~80°C </p><p>High temperature probe: 0~~150°C</p>                                                                                                                                                                                            |
| ■ Power consumption             | < 2W                                                                                                                                                                                                                                                              |
| ■ Transient flow                | Instantaneous flow, flow velocity, time differential display                                                                                                                                                                                                      |
| ■ Cumulative flow               | Positive and negative cumulative, net flow display                                                                                                                                                                                                                |
| ■ Units                         | Metric or Imperial units                                                                                                                                                                                                                                          |
| ■ Display                       | 128 x 64 LCD backlight display                                                                                                                                                                                                                                    |
| ■ Operation buttons             | 4 key touch buttons                                                                                                                                                                                                                                               |
| ■ Security                      | Keyboard lock, power-loss data protection                                                                                                                                                                                                                         |
| ■ Shell                         | ABS plastic, 145 x 90 x 45 mm                                                                                                                                                                                                                                     |
| ■ Power                         | <p>9\~30VDC</p><p>100-240 50/60Hz AC transformer</p>                                                                                                                                                                                                              |
| ■ Applicable pipe material      | Cast iron, carbon steel, stainless steel, PVC pipe and other                                                                                                                                                                                                      |
| ■ Applicable pipe diameter (mm) | <p>TM-1 DN50-250 (2"\~10")</p><p>TS-2 DN20-50 (¾" to 2")</p>                                                                                                                                                                                                      |
| ■ Probe waterproof rating       | <p>General probe IP61 </p><p>Glue probe IP65 </p><p>Waterproof resistance probe IP68</p>                                                                                                                                                                          |


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