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『Hand Held Ultrasonic Flow Meter Survey Kits: On-Site Transit-Time Fluid Energy Auditing Tools』Related information(v cone flow meter|rotary gas meter|gallon meter|gear meter|metal tube rotameter|glass tube rotameter|nutating disk meter|transit time ultrasonic flow meter|wedge flow meter|pd meters|hydraulic flow meter|ultrasonic water flow meter|water flow meter|air flow meter|magnetic water flow meter|oxygen flow meter|gas flow meter|argon flow meter|air velocity meter|gasoline flow meter|fuel flow meter|ultrasonic water meter|digital water meter|nitrogen flow meter|solid flow meter|Oxygen tank flow meter|digital water flow meter|diesel fuel flow meter|steam flow meter|02 flow meter|compressed air flow meter|oil flow meter|liquid flow meter)
Hand Held Ultrasonic Flow Meter Survey Kits: On-Site Transit-Time Fluid Energy Auditing Tools
Quick Answer: A hand held ultrasonic flow meter survey kit measures liquid flow from outside the pipe using transit-time sensors. It helps energy auditors and plant engineers check chilled water, cooling water, process water and heat transfer loops without cutting pipes or stopping production. Silver Instruments supplies complete survey kits with data logging and clamp-on sensors for DN15 to DN6000 lines.
Most flow audits start with a simple problem. The plant has a cooling loop that uses too much electricity. Or the heat exchanger is not performing like the design says. The team needs actual flow data, not guesses from a pressure gauge or a pump curve. A hand held ultrasonic survey kit solves this because the sensors clamp on the outside of the pipe. The pipe stays intact and the process keeps running.
The transit-time method uses two clamp-on transducers. One sends an ultrasonic pulse through the liquid. The other receives it. Signal travel time changes with flow velocity because the liquid carries the sound wave. The handheld transmitter converts that time difference into flow rate. This works well on clean water, demineralised water, glycol and light chemicals. Liquids with heavy suspended solids or a large gas bubble load cause weak signal and unreliable readings.
What a Complete Survey Kit Includes
A typical Silver Instruments hand held ultrasonic flow meter survey kit includes a portable transmitter, two or three pairs of clamp-on transducers, a stainless steel chain or magnetic mounting rail, coupling gel, signal cables, a battery charger, a USB cable and a field carrying case. The transmitter logs data on an SD card. Some versions support GPS tags for each test point.
Sensor pairs are matched to pipe size. Small sensors handle DN15 to DN100. Medium sensors cover DN50 to DN700. Large sensors cover DN300 to DN6000. For most HVAC energy audits, the small and medium pairs are enough. For water treatment plants and district cooling mains, the large pair earns its place because the main headers often run above DN700.
Technical Parameters That Matter On Site
Field conditions are less forgiving than a lab bench. A good survey kit needs a bright display, a simple menu, fast startup and a battery that lasts a full shift. The Silver Instruments portable ultrasonic flow meter records velocity, volumetric flow, total flow and signal strength. It accepts pipe outer diameter, wall thickness and material from the operator.
Measuring range covers flow velocity from 0.03 m/s to 12 m/s. Accuracy is plus or minus 1.0 percent of reading for most clean liquid applications. Repeatability stays at 0.2 percent under stable temperature. Standard transducers work from minus 30 degrees Celsius to 160 degrees Celsius. High temperature transducers cover up to 200 degrees Celsius. The transmitter operates on a rechargeable lithium battery for about 10 hours of continuous logging. Data exports through USB, RS485 or Modbus RTU. Analog output is 4-20 mA with HART on some models.
Which Industries Use These Kits
We have seen these survey kits on customer sites in many countries. A palm oil refinery in Malaysia used one set to balance cool
In the Middle East, district cooling operators carry hand held ultrasonic meters to verify flow at customer connection points. These are often DN200 to DN400 pipes in basement plant rooms. In Australia, water treatment contractors use the same kits on desalination plant brine lines and clean water transfer lines. In Latin America, ethanol producers use them for utility water balance and heat recovery checks.
Silver Instruments Recommended Model
For most on-site fluid energy audits, we recommend the Silver Instruments SUF-300H hand held ultrasonic flow meter survey kit. It comes with small and medium clamp-on transducer pairs, coupling gel, a mounting chain set, a 32 GB SD card, a rechargeable battery pack and a hard case. If you audit large chilled water headers or district cooling pipes above DN700, ask for the large transducer set as well. The SUF-300H supports pipe materials like carbon steel, stainless steel, copper and PVC. It does not need a flow calibration factor for each pipe because the transit-time calculation uses pipe diameter and wall thickness directly.
How to Get a Quote
Send us your pipe size in DN, liquid type, temperature in degrees Celsius, pressure in bar and the flow range you expect. Tell us if the fluid is water, glycol, ethanol or a light chemical. We will confirm the right sensor set and give you a price for a complete survey kit. For urgent project needs, call or message Silver Instruments at Tel: +86-25-68650347, Whatsapp: +86-25-52155837 or WeChat: +86 15365082610.
FAQ
Can the survey kit measure flow without cutting the pipe?
Yes. The clamp-on transducers mount on the outside of the pipe. The liquid stays inside. No pipe cutting, no flange work and no process shutdown are needed.
What pipe sizes and materials does the hand held kit support?
Standard kits cover DN15 to DN6000 depending on the sensor pair. Pipe materials include carbon steel, stainless steel, copper, PVC and other uniform materials with good acoustic conductivity.
Which fluids work with transit-time ultrasonic flow meters?
Clean or lightly loaded liquids work best. This includes water, demineralised water, glycol solutions, light oils and some chemicals. Fluids with heavy solids, more than a small volume of gas bubbles or very high viscosity can reduce signal quality.
How long does the battery last and how do we export data?
The rechargeable battery runs for about 10 hours of continuous measurement. Data logs to an SD card and can be exported via USB to a PC. Modbus RTU over RS485 is available on most Silver Instruments handheld transmitters.
Can the kit be used in ATEX Zone 1 or hazardous areas?
Standard survey kits are for safe areas. If you need a unit for ATEX Zone 1 or other hazardous area classification, tell us the gas group and temperature class. Silver Instruments can supply an intrinsically safe version on request.