PT900 Portable Ultrasonic Flow Meter

  • Wireless (Bluetooth) or wired communication from tablet to transmitter
  • New and Improved Clamping Fixtures Fixtures which are now quicker and easier to install
  • Channel Options Available as a single or dual channel option
  • Improved Accuracy +/- 1% of reading on pipe diameters above 50 mm (2 inch) and +/- 2% of reading on pipe diameters between 15 mm and 50 mm
  • Velocity, volume, mass, totalizer and energy flow rate measurements
Product Options
Android Tablet


The PT900 is the latest generation of portable clamp on flow meters from Panametrics. It has been designed based on its predecessor, the PT878, following on from years of feedback from users of portable flow meters and how they are used. The user interface, clamping fixtures and transmitter have all undergone a complete redesign.

The PT900 uses wireless Bluetooth technology to communicate with the transmitter and tablet. The PT900 android app features a setup guide wizard to enable first time users to quickly setup the meter and get measurements within minutes.

The PT900 has improved accuracy over the PT878, achieving ±1% of reading (50 mm or greater pipe sizes) and ±2% of reading (15 – 50 mm pipes sizes). Compatible with a wide range of transducers to suit most pipe sizes and materials, both lined and unlined pipes.

Additional available accessories:

  • Energy kit
  • I/O (input/output) cables
  • Rechargeable battery pack
  • Thickness gauge
  • 100 ft extension cables
  • External battery charger for spare battery

The PT900 is ideal for many types of survey:

  • Energy surveys – the PT900 can be combined with an energy kit to become a full energy meter for use on heating and cooling systems. Testing efficiency of hot water systems.
  • Water usage surveys - ideal for leak detection and monitoring water consumption. It can also be used for verifying flow rates of other flow meter technologies
  • Chemical dosing – ideal for measuring the dosage of chemicals as there is no contact with the actual chemicals. Meaning there is no problem with highly acidic or alkaline chemicals.

Manufactured by: Panametrics
Model: PT900 Portable Ultrasonic Flow Meter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Potable water
Cooling and heating water
Ultrapure water
Water/glycol solutions
Crude oil
Refined hydrocarbons


Operation and Performance
Fluid Types Liquids: acoustically conductive fluids, including most clean liquids and many liquids with small amounts of entrained solids or gas bubbles
Flow Measurement Patented Correlation Transit-Time™ mode
Pipe Sizes Standard: 0.5 to 24 inch (15 to 600 mm)
Optional: Upto 300 inch (7500 mm) available upon request
Pipe Wall Thickness Up to 3 inch (76.2 mm)
Pipe Materials All metals and most plastics
(Consult RS Hydro for concrete, composite materials and highly corroded or lined pipes)
Accuracy ±1% of reading (2 in / 50 mm or greater pipe sizes)
±2% of reading (0.5 in / 15 mm to <2 in / 50 mm pipe sizes)
Installation assumes a fully developed, symmetrical flow profile (typically 10 diameters upstream and 5 diameters downstream of straight pipe run). Final installation accuracy is a function of multiple factors including fluid, temperature range, pipe centricity among other factors.
Repeatability ±0.2% of reading
Range (Bidirectional) 0.1 to 40 ft/s (0.03 to 12.19 m/s)
Response Time Up to 2 Hz
Measurement Parameters Velocity, volume, mass, energy, total flow
Channels 1 or 2 channels
PT900 Flow Transmiter
Enclosure IP65

Weight: 3 lb (1.4 kg)
Size (h x w x md): 7.9 x 4.3 x 1.5 in (200 x 109 x 38mm)
Mounting: Soft strap around pipe or magnetic clamp

Analog Inputs 4-20 mA (qty 2)
Analog Output 4-20 mA (qty 1)
Digital Output Pulse (totaliser), frequency, alarm (qty 1)
Digital Communication

Modbus via RS485 port
Bluetooth® wireless
Micro-USB port

Battery Type: Lithium Ion (high-energy, rechargeable)
Life (continuous operation): 18-20 hours
Life (power saver mode): >4 days
Charger: 100 to 240 VAC (50/60 Hz)
Charging /time: Up to 3 hours (from 0% to 100%)
Operating Temperature Charge: 0 to 45°C (32 to 113°F)
Discharge: -20 to 55°C (-4 to 131°F)
Storage Temperature -20 to 60°C (-4 to 140°F)
Electronic Classifications CE (EMC Directive) IEC 61326-1:2013, IEC 61326-2-3:2013, LVD 2006/95/EC, EN 61010-1 2010
ANSI/UL STD. 61010-1, CAN/CSA STD. C22.2 NO. 61010-1
WEEE Compliant (Directive 2012/19/EU)
RoHS Compliant (Directive 2011/65/EU)
User Interface
Display Requires a tablet. Android operating system (version 4.4 or greater) or iOS operating system (iOS version 11.0 or greater, BLE 4.0 or greater, capacity of 16GB and greater).
Dimensions 7 in. Tablet:
7.75 x 4.75 x 0.75 in. (196 x 120 x 19 mm) typical
8 in. Tablet:
8.75 x 6.00 x 0.75 in. (222 x 152 x 19 mm) typical
Battery Life >12 hours of continuous use
Battery Charger 100 to 250 VAC (50/60 Hz)
Communication with Flow Transmitter Bluetooth® or wired (wired for Android only)
Clamp-On Transducers
Temperature Range* Standard: -40 to 302°F (-40 to 150°C)
Optional: -328 to 752°F (-200 to 400°C)
See individual transducer model specifications for exact temperature range
Mounting New PT clamping fixture for pipes ≥2 in. (50 mm)
CF-LP clamping fixture for 1/2 in. (15 mm) to 2 in. (50 mm) pipes
PT9 Transducer Cables Standard Length: 25 ft (8 m) or RG316 coaxial cable
Maximum Length: 100 ft (30 m) of RG316
Temperature Range: -40 to 302°F (-40 to 150°C)



Related products


All of our standard transducers will do -40degC to +150degC, but this will depend on your application.
  • Liquid: below 50mm CFLP transducers are required, 50-1000mm CRS-402 transducers and 150-8000mm CRS-401 transducers. All the bits you need can be supplied, and delivered with the meter.
  • Gas: below 80mm CRS-402 is required, for 80-300mm the CRS-401/CRV-310 and for above 300mm the CRW-312 transducers are required.
  • High temperatures: For liquid we can measure +450degC for liquid and for gas/steam +250degC. But please consult RS Hydro.
As long as the pipe is relatively clean, coatings or paint is usually not a problem for clamp on flow meters but if the pipe is corroded or the paintwork has bubbled then a quick sanding down with sandpaper or a wire brush is recommended.
An ultrasonic wall thickness gauge, that measures to within 0.05mm, is provided as standard with all flow meter rental packages.
The screendump facility on the integrated dataloggers on all our flow meters, allows you to photograph any screen and download it to your pc.
The log path has changed from log path from "Transport/log/" to "Documents/Transport/log".
The latest TransPort PT900 Android application is compatible with Android versions 7 and above.
The above issues have been observed in the field with the older Android applications on some Android 12 devices. Download the latest version of the TransPort PT900 Android application which has been updated especially for Android version 12 devices and above. The new version of the TransPort PT900 Android application is V1.4.6 and it is compatible with TransPort PT900 transmitter software version V1.2.6.
  1. 1. Make sure the Tablet is turned On, the PT900 APP is installed, and the battery is fully charged.
  2. 2. Make sure the Transmitter battery pack is fully charged, and turn the Transmitter On by pressing and holding the Pwr button for more than three seconds. The Green Power LED will indicate that the power is On.
  3. 3. After the APP finishes loading, the default Transmitter list is displayed. During initial installation, this list is empty. To connect to a new PT900 transmitter, click SCAN and the APP will search for all available transmitters via Bluetooth.
  4. 4. After the scan has been completed, any new transmitters which were found are listed in the AVAILABLE DEVICES section of the tablet screen. Click on your transmitter to pair it with the tablet.

Note: In the above step, your PT900 transmitter is identified by the serial number on its label

  1. 5. During the pairing process, PT900 security features require the user to confirm the pairing (see Figure 9 below). When the Bluetooth pairing request appears on the tablet, a random passkey will be generated. You may ignore the random passkey and click OK to continue. Then, confirm that the blue LED on the transmitter is flashing and click the transmitter power button.

IMPORTANT: The pairing is completed only after it is confirmed at both the tablet and the transmitter. Otherwise, the pairing will fail.

  1. 6. Click the BACK button on the Android tablet to return to the PT900 APP. Then, select your PT900 transmitter in the TRANSMITTERS PAIRED list and click NEXT to open the Main Menu.