U12 One-Piece Clamp-On Ultrasonic Flow Meter
The SEGMENsensor U12 is a one-piece clamp-on ultrasonic flow meter: sensor, electronics and display in one metal housing that clamps straight onto DN15–DN40 pipes, or DN50–DN65 with the upgrade. It reads ±2% (±1% after calibration), runs on 10–24 V DC and ships within 2 weeks of payment.
- ±2%accuracy, ±1% after calibration
- DN15–DN40pipe range; DN50–DN65 option
- 2 of 4outputs included: 4–20 mA, RS485, OCT, relay
- One piecesensor and display in one housing
- Ships within 2 weeksMade to order and shipped from our factory within 2 weeks of payment.
- Customs documents suppliedWe send the commercial invoice and packing list for your import clearance.
- Calibration reportEvery meter is calibrated before it leaves the factory and ships with its report.
- Engineers by emailReply within one working day, Mon–Fri 09:00–18:00 China time.
From order to your door
- TodayConfigure and pay
Card, PayPal or bank transfer. UPS shipping is added at checkout; import duty and tax are not included.
- Within 2 weeksBuilt and calibrated
Your meter is made to order, calibrated before it leaves the factory and packed in its own box.
- 3–5 working daysUPS
Door to door from our factory to your company address, usually 3–5 working days.
- DeliveredYou clear customs
You pay import duty and tax in your country, usually through UPS or your customs broker. We supply the commercial invoice and packing list.
What's in the box
Standard configuration, included in the unit price:
- U12 one-piece meter with integrated B1 sensor (or B1H if you choose it)
- Signal cable, 2 m
- Coupling pad and couplant
- Clamp screws for your pipe size
- User manual
- Factory calibration report
- Any options you add, such as the PT1000 temperature sensors
Which transducer do I need?
There is one U12 base model for DN15–DN40 pipes and liquid up to +65 °C. In step 3, add the DN50–DN65 upgrade for larger pipes, the B1H sensor for liquid up to +115 °C, or the mini energy (BTU) meter.
- U12 one-piece meter with integrated B1 sensor (or B1H if you choose it)
- Signal cable, 2 m
- Coupling pad and couplant
- Clamp screws for your pipe size
- User manual
- Factory calibration report
| Your pipe and liquid | Part number | Transducer | Cable | Unit price (USD) | |
|---|---|---|---|---|---|
| DN15–DN40, liquid up to +65 °C | U12-B1 | The standard U12. Add the DN50–DN65 upgrade for larger pipes or the B1H sensor for liquid up to +115 °C in step 3. | 2 m | US$499 | Select |
Options — added to the unit price
| Code | Option | Price (USD) |
|---|---|---|
L65 | Upgrade to DN50–DN65 | +US$59 |
B1H | High-temperature sensor B1H | +US$99 |
E | Mini energy (BTU) meter | +US$179 |
MB | M-Bus output (EU version) | +US$149 |
Extra cable and pipe straps
| Code | Item | Price (USD) |
|---|---|---|
CABLE-80 | Extra sensor cable | +US$3 |
CABLE-PT | Extra PT1000 cable | +US$3 |
- Sensor cable: 2 m standard, up to 5 m. PT1000 cable: 9 m standard.
- The M-Bus option gives an M-Bus output only.
How do I install the U12?
The U12 clamps onto the pipe in one piece, so there are no separate transducers to space and align.
- Choose a straight, full pipe
After a 90° bend, leave at least 10 pipe diameters upstream and 5 downstream, and pick a section that is always full.
- Prepare the pipe
Clean the pipe surface where the meter sits and fit the coupling pad or couplant.
- Clamp the meter on
Fit the clamp for your pipe size and tighten the screws evenly so the sensor sits flat on the pipe.
- Enter the pipe data
Set the pipe size and material in the menu, then read the flow.
U12 dimensions
| DN15–DN40 version | 139 × 71 mm, height 95 mm |
|---|---|
| DN50–DN65 version | 144 × 105 mm, height 125 mm |
U12 specifications
| Pipe size | DN15–DN40; DN50–DN65 with the L65 upgrade; minimum pipe inside diameter 12 mm |
|---|---|
| Maximum flow | DN15 60 L/min; DN20 100; DN25 200; DN32 300; DN40 400; DN50 600; DN65 1000 L/min |
| Flow velocity | 0.03–10 m/s |
| Accuracy | ±2% (±1% after calibration) |
| Liquid | Water or another single liquid without solids or impurities, full pipe |
| Outputs | Choose 2 of 4: 4–20 mA, RS485 Modbus, OCT pulse, one relay; M-Bus (EU version) option replaces them |
| Power supply | 10–24 V DC, 1 A |
| Sensor temperature | B1: 0 to +65 °C; B1H: 0 to +115 °C |
| Display | Backlit display |
| Protection | IP65 |
| Data storage | EEPROM |
| Cable | 2 m standard, up to 5 m; PT1000 cable 9 m |
| Housing | Metal one-piece housing |
| Certifications | CE, UKCA — EMC tested to EN IEC 61000-6-2 and EN IEC 61000-6-4 (certificate copies on request) |
Spare parts for the U12
Order replacement transducers, temperature sensors and installation parts for the U12 on their own. Prices are per item, excluding shipping and import duties.
| Code | Part | Price (USD) | Qty |
|---|---|---|---|
SP-PT1000 | Pair of clamp-on PT1000 temperature sensors | US$139 | |
SP-CPL | Coupling compound, one tube Standard item: Coupling compound comes with every meter. | US$11.50 |
Shipping, duties and delivery
- We ship from our factory in China within 2 weeks of payment. Every meter ships in its own box.
- UPS delivers door to door, usually in 3–5 working days after dispatch. The UPS shipping cost is shown at checkout and paid with your order.
- Import duty, VAT or GST and any customs fees are not included in the price or the checkout total. You pay them as the importer in your country, and the rates differ by country.
- We help with customs clearance: the commercial invoice and packing list go with the shipment and by email, and our engineers answer customs questions about the product.
- Prices on this page are per unit, excluding shipping and import duties, for 1–9 units. For 10 units or more, email info@segmensensor.com and we will recalculate the price for your quantity.
Frequently asked questions
Will the U12 work on my pipe?
The U12 fits DN15–DN40 pipes as standard, or DN50–DN65 with the upgrade, carrying water or another single liquid without solids, in a full pipe. If you are unsure, send us the pipe size, material, liquid and temperature and our engineers will reply by email within one working day.
How is the U12 different from the U13?
Both are one-piece meters for small pipes. The U12 reads ±2% (±1% after calibration), lets you choose two of four outputs, reaches DN65 with the upgrade and offers a mini energy meter. The U13 is smaller, in an acid- and alkali-resistant PP glass-fibre housing, sold by pipe size from DN15 to DN40.
What does the price include?
The price is per unit and includes the U12 meter, a 2 m signal cable, coupling pad and couplant, clamp screws for your pipe size, the user manual and a factory calibration report. UPS shipping is added at checkout. Import duty and tax are not included; you pay them in your country on import.
Can the U12 measure heating or cooling energy?
Yes. Add the mini energy (BTU) meter in step 3: it fits an RTD module and a pair of clamp-on PT1000 temperature sensors with 9 m cable.
Which outputs can I have?
Two of four outputs are wired at the factory: 4–20 mA, RS485 Modbus, OCT pulse or one relay, at no extra cost. The EU M-Bus version replaces them with M-Bus only.
Do I pay import duty when the meter arrives?
Yes. Import duty, VAT or GST and any customs fees are paid by you as the importer, and the rates depend on your country. UPS or your customs broker will ask for payment before or at delivery. We send the commercial invoice and packing list with the shipment and by email, and help with customs questions about the product.
When will my order arrive?
We ship from our factory within 2 weeks of payment. UPS then usually takes 3–5 working days to deliver. The configurator shows an estimated delivery date before you pay.
Can I order 10 or more units?
Yes. For 10 units or more, email info@segmensensor.com with the part number and quantity. Our engineers recalculate the price for your quantity and reply by email.
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