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Transport PT900 Portable Ultrasonic Flow Meter: Panametrics Specs and Real-World Performance
Quick Answer: The Transport PT900 is a clamp-on ultrasonic flow meter for temporary or spot-check liquid measurement. It straps onto the outside of a pipe from DN15 to DN1500 and delivers ±1% of reading accuracy without any process shutdown. Engineers use it for flow surveys, pump verification, leak detection, and balancing in water, oil, and chemical lines. The meter comes with two sets of transducers, a rugged tablet-style transmitter, and a rechargeable battery good for a full shift.
Silver Instruments supplies the PT900 to field service teams and plant engineers across Southeast Asia, the Middle East, and Latin America. We pre-configure the meter to your pipe data so you can start measuring within minutes of unboxing. If you need a quote, send us your pipe OD, wall thickness, material, liquid, and process temperature. Our email is [email protected], phone and WhatsApp at 86-135-12131526, and WeChat at +86 13512131526.
Clamp-On Technology That Works on Site
The PT900 uses transit-time ultrasonic pulses. Two transducers clamp onto the pipe and send signals diagonally through the liquid. The meter measures the time difference between upstream and downstream signals to calculate flow velocity. No pipe cutting, no pressure drop, no contact with the liquid. You can mount the transducers on steel, stainless steel, copper, PVC, HDPE, and even lined pipes if the liner is bonded. For difficult pipe materials like old cast iron or fiberglass, we recommend a quick on-site sound velocity check.
Key Specifications That Matter
Pipe size range is DN15 to DN1500 with the standard clamp-on kit. Accuracy is ±1% of reading for flow velocities above 0.3 m/s and fully developed flow profile. Repeatability sits at ±0.2%. Flow velocity range spans 0.01 m/s to 12 m/s. The transmitter logs data on a 5.7-inch color touchscreen and stores 2 million data points. Outputs include one 4-20 mA analog, two pulse/frequency, and a USB port for data download. Power comes from a Li-Ion battery that gives 8 to 10 hours of continuous operation. Weight of the complete field kit is about 5.5 kg, small enough for a backpack. Operating temperature for the electronics is -20°C to 55°C, while the standard transducers work up to 150°C process temperature. High-temp clamp-on probes extend that to 200°C.
Where the PT900 Works Best
In practice, this meter shines in short-term jobs. A water utility in the Philippines used it to verify DN800 raw water intake meters without digging or draining. An oil terminal in Saudi Arabia runs the PT900 once a quarter to cross-check custody transfer meters on 1
What Most Engineers Overlook
Even with clamp-on convenience, pipe preparation matters. Remove loose paint, rust, and scale where the transducers sit. Use the supplied couplant gel. The PT900 will give a signal quality reading from 0 to 99, and anything above 50 usually gives stable readings. On vertical pipes with upward flow, you avoid air pockets that kill the ultrasonic signal. If you must measure on a horizontal run, place the transducers on the side of the pipe, not the top. We have seen this on customer sites many times: a good installation on a short straight run of 10D upstream and 5D downstream beats a perfect meter on a bent pipe.
Get a PT900 Quote with Your Pipe Data
Silver Instruments stocks the PT900 with standard and high-temperature transducer kits. We ship from our Nanjing warehouse to Australia, Indonesia, UAE, Nigeria, Chile, and beyond. To receive a price and delivery time, email [email protected] with these five details: pipe outer diameter (mm), wall thickness (mm), pipe material, liquid type, and process temperature (°C). You can also reach us on WhatsApp at 86-135-12131526 or call +86-135-1213-1526. For Chinese-language support, add WeChat +86 13512131526.
Frequently Asked Questions
Does the PT900 measure on lined pipes? Yes, if the liner is bonded like cement mortar, rubber, or epoxy without air gaps. Signal strength will be lower, so expect longer setup time.
Can I use one clamp-on set for multiple pipe sizes? The standard kit covers DN15 to DN1500 with two transducer pairs. Small pipes below DN50 use the small transducers. From DN50 up to DN1500 you switch to the large pair. No extra hardware needed.
Is 4-20 mA output available on the portable unit? Yes. There is one active 4-20 mA output you can connect to a plant DCS or a portable data logger during long-term flow surveys.
What is the battery life in real field use? We see 8 to 10 hours of runtime. If you operate with the screen brightness at maximum and frequent data logging, expect the lower end of the range. A full charge takes about 4 hours.
Does the PT900 work on gas or steam? No. This model is for clean liquids with less than 3% suspended solids or gas bubbles. For gas flow, you need a different ultrasonic or Coriolis meter.
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