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『UF500 Clamp-On Ultrasonic Flow Meter Complete Technical Specifications』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
UF500 Clamp-On Ultrasonic Flow Meter Complete Technical Specifications
Quick Answer: The UF500 clamp-on ultrasonic flow meter measures liquid flow from outside the pipe. No cutting, no welding, no process shutdown. It fits pipe sizes from DN15 to DN6000, handles media temperatures from -30 °C to 110 °C, and outputs 4-20 mA, pulse, and RS485 Modbus. We ship to Southeast Asia, Australia, Africa, and the Middle East with standard lead times of 5-7 working days.
Most engineers skip this part, but here is the thing. A clamp-on flow meter lives or dies by its transducer coupling. The UF500 uses a solid stainless steel transducer housing with a PEEK acoustic window. The coupling surface is tested flat to within 0.02 mm. This matters when you measure diesel flow in Gladstone or cooling water in Dammam because a poor acoustic bond drifts fast in high humidity and heat. We have seen this on customer sites many times. The transducer cable is a shielded twisted pair, 9 meters standard, up to 100 meters optional. Because signal loss eats accuracy at long distances, we only use low-capacitance coax when a customer asks for extended cable runs.
Measurement Performance That Holds in the Field
Flow range: 0.01 m/s to 12 m/s bidirectional. Accuracy: ±1.0% of reading for pipe sizes above DN50, ±1.5% for DN15 to DN40. Repeatability sits at 0.2%. The transmitter updates the display and all outputs every 100 ms. That speed is enough to catch hydraulic transients in pump stations. One water utility in Vietnam uses the UF500 to monitor backwash flow in a sand filter gallery. They log the 4-20 mA signal into a Yokogawa paperless recorder and trend the data every second. The loop-powered version draws less than 2.5 W, so a small solar panel and battery keep it running in remote pumping stations in rural Philippines.
The signal converter compensates for entrained solids and gas bubbles up to 5% void fraction. In practice, that means you can meter raw sewage, palm oil sludge, or seawater with sand particles. A fish processing plant in Peru uses the UF500 on a 10-inch SCH 40 carbon steel pipe carrying chilled seawater and fish offal. The transducer mounting rail and stainless steel straps have not corroded after 18 months of salt spray. We ship the standard version with IP67 transducers and an IP66 transmitter enclosure. If your site is in Qatar or Oman, we recommend the IP68 transducer option because occasional flooding happens.
Inputs, Outputs, and Communication You Can Actually Use
Standard outputs: one isolated 4-20 mA, one pulse/frequency output, and RS485 Modbus RTU. Optionally, you can add a second 4-20 mA or HART on the primary loop. The digital outputs can be configured as high/low flow alarms, batch controller, or totalizer pulse. A chemical distributor in Malaysia uses the batch function to fill IBC tanks with 1000 kg of 50% caustic soda solution. The UF500 triggers a solenoid valve when the total reaches the preset value. They calibrated the meter on a CPVC pipe with a DN40 diameter. The field calibration coefficient for that pipe material and wall thickness is stored in the transmitter memory. If you switch to another pipe, you can load one of 16 pre-saved pipe configurations.
The Modbus map is open and documented. You can poll flow rate, positive and negative totals, signal quality, and diagnostic codes with any SCADA or PLC. We recommend a read interval of 1 second or slower to align with the 100 ms refresh. The data format is 32-bit IEEE 754 float in two 16-bit registers. Because every integrator hates byte-swapping issues, we ship the UF500 with little-endian order as default and offer big-endian on request.
Pipe, Fluid, and Installation Limits Without the Sales Pitch
Pipe materials covered: carbon steel, SS304, SS316, PVC, CPVC, HDPE, PVDF, cast iron, ductile iron, copper, and concrete with an internal liner (grout or epoxy). The wall thickness range is 0.5 mm to 50 mm. Lined pipes need the liner sound velocity entered manually. For pipes with unknown material, the UF500 has a built-in sonic velocity measurement mode that estimates wall thickness and material type. A food ingredient factory in Thailand uses
The transmitter works with clean liquids, turbid liquids, and fluids with small solids. Minimum conductivity is not required because this is not a magnetic flow meter. It measures diesel, palm oil, crude glycerin, ammonia water, demineralized water, and seawater. Viscosity up to 500 cSt is acceptable as long as the fluid remains pumpable. Lower viscosity runs like water are the default. A marine bunkering company in Singapore uses the UF500 for fuel oil transfer at DN150. Viscosity at 50 °C is around 180 cSt. They see stable readings after a 5-minute thermal equilibrium wait time from engine room to deck.
Power, Mounting, and Environmental Ratings
Power supply: 85 to 265 VAC or 24 VDC. The transmitter housing is die-cast aluminum with a polyester powder coat. Dimensions are 240 x 190 x 100 mm and weight is 2.8 kg. Mounting is wall or pipe bracket. Ambient temperature range is -25 °C to 60 °C. In direct sun in Dampier, Australia, we recommend a sunshade. The local display is a 128x64 graphic LCD with backlight. It cycles between flow rate, velocity, positive total, negative total, and signal strength. The keypad is 5 tactile buttons. You can lock the menu with a password to stop operators from changing calibration factors.
The UF500 carries CE and RoHS certification. For hazardous areas, we can supply the transducers with an ATEX Zone 1 / IECEx Ex db IIC T6 Gb certification. The transmitter stays in the safe area, and we provide intrinsic safety barriers between the transmitter and transducers. A gas gathering station in Nigeria uses this configuration on a high-pressure fuel gas line. The pipe is DN80, Schedule 80, ASTM A106 Gr.B. The gas liquid ratio is below the void fraction limit, so the meter reads correctly.
What You Get in the Box
One transmitter, two transducers with mounting rails and stainless steel straps, acoustic coupling gel (silicone grease, 100 g tube), 9 m transducer cables, a printed manual in English, and a signal test report. The test report shows zero verification, span check at 2 m/s and 5 m/s, and transducer impedance matching at 1 MHz. We keep the digital report on file for 5 years. If you need a factory calibration certificate traceable to a national standard, ask for option CAL-CERT when you send your enquiry.
FAQ – Questions Engineers Ask Before They Order
Can the UF500 measure flow in partially filled pipes? No. The clamp-on method requires a full, liquid-filled pipe. If the pipe runs partially full, you will get erratic or zero readings. Install the meter in a low point or vertical pipe with upward flow to guarantee full pipe condition.
What pipe materials cannot be measured? Pipes without a solid acoustic path cause problems. Examples are PTFE-lined pipes with air gaps, thick rubber linings, porous concrete without an inner liner, and fiberglass pipes with loose fiber layers. We can check your pipe spec if you send us the material and wall thickness.
How long does installation take? Two technicians can install the transducers and commission the meter in under 2 hours on a clean, accessible pipe. Surface preparation includes removing loose paint and rust with a wire brush. Do not use an angle grinder on thin-wall pipes.
What is the typical delivery time? Standard single-unit orders ship within 5 working days. Large orders of 10 units or more ship within 15 working days. We ship by DHL, FedEx, TNT, or sea freight based on your preference.
Can Silver Instruments provide field commissioning support? Yes. We can travel to your site in Southeast Asia, Australia, or the Middle East. We charge a daily rate plus travel expenses. Alternatively, we offer remote video support at no cost during your first startup.
How to get a price: Send us your pressure (bar), temperature (°C), pipe size (DN), pipe material, and flow range. We will return a quote within 12 hours. Email: [email protected] | Tel: +86-135-1213-1526 | WhatsApp: 86-135-12131526 | WeChat: +86 13512131526