Panametrics PT878GC Portable Ultrasonic Gas Flowmeter

Panametrics PT878GC

  • Versatile The PT878GC is suitable for a wide range of applications, pipe sizes and pipe (materials)
  • Ideal for Natural Gas, Compressed Air, Nitrogen, Steam and more... Installed within 15 minutes
  • Available to Rent Next Day Next day delivery on the PT878GC is available to mainland UK when rental paperwork is received by 12 midday (stock permitting).
  • Supported by engineers with proven field experience.
Product Options


The Panametrics PT878GC clamp-on ultrasonic gas flow meter is a portable flow meter used to measure natural gas, compressed air, inert gas or any compressed gas application. The PT878GC can not only measure gas flow rates, but can also record and log data internally and then download it to a PC.

  • For pipes 6 in (150 mm) and smaller: ±2% to 5% of reading typical; For pipes over 6 in (150 mm): ±1% to 2% of reading typical
  • Pipe Sizes: 20-610mm
  • 8-hour battery life
  • -20°C to 55°C (-4°F to 131°F) temp range

The PT878GC gas flowmeter is a compact transit time (time of flight) portable flow meter suitable for a wide range of non-invasive gas flow measurement applications. The portable gas flow meter is extremely compact, contains a rechargeable battery and has a universal power adaptor. Prior to the PT878GC, clamp on flowmeters could not measure gas within metal pipes. However, the sophisticated signal processing and technology of the PT878GC means that clamp on flow metering can be used to measure gases at low and high pressure in metal, non-ferrous and plastic pipes.

The Panametrics PT878GC gas flowmeter can be used to measure the flow of almost any gas including natural gas, oxygen, argon, hydrogen, nitrogen, CO2, methane, ambient air and compressed air. The greatest advantage of the PT878GC is that it can be used in without any modification to the existing pipework. Measuring erosive, corrosive, toxic, high-purity or sterile gases with a non-invasive flow meter is an obvious advantage as no modifications are required and installation costs are significantly reduced. The meter could even be moved to another location at a later date to measure a completely different pipe size and gas!

The PT878GC can log 100,000 data points and download them via its infrared port (no cables involved).

The meter housing weighs in at 1.36kg and is IP67 rated. A wide range of transducers and clamping fixtures are available for sale or hire.

Manufactured by: GE Panametrics
Model: Panametrics PT878GC

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Natural gas
Compressed air
Fuel gases
Corrosive gases
Erosive gases
Toxic gases
High-purity gases
Air separation gases


Flow Range Velocity dependant
Accuracy - For pipes 6 in (150 mm) and smaller: ±2% to 5% of reading typical
- For pipes over 6 in (150 mm): ±1% to 2% of reading typical
Accuracy depends on pipe size and other factors.
Repeatability ±0.2% to 0.5% of reading
Pipe Size Ranges

- 0.75 to 12 in (20 to 300 mm) with
TransPort PT878GC-01 electronics
- 4 to 24 in (100 to 610 mm) and larger with TransPort PT878GC-02 electronics

Pipe Wall Thickness Thicker walled pipes require greater gas density. See Installation Requirements Table.
Pipe Materials

All metals and plastics. No lined pipes.

Operating Temperature

Transmitter -20° to 55°C (-4° to 131°F)
Transducers - Standard: -40° to 130°C (-40° to 266°F)
- Optional (overall range): -40° to 230°C
(-40° to 446°F
Datalogging Memory capacity to log over 100,000 flow data points
Output - One 0/4 to 20 mA current output
- One user-selectable pulse (solid state, 5 V
maximum) or frequency (5 V square wave, 100 to 10,000 Hz)
- Two 4 to 20 mA analog inputs with switchable power supply for loop-powered temperature or pressure transmitters
Power Rechargeable battery: 8 hours of continuous operation
Battery Charger Input 100 to 250 VAC, 50/60 Hz, 0.38 A
Dimensions (h x w x d) 9.4 in x 5.5 in x 1.5 in
(238 mm x 138 mm x 38 mm)

3 lb (1.36 kg)

Keypad 25-key, rubberized tactile membrane keypad


Related products


No, all of our flowmeters are competitively priced and rental is an ideal option for cutting costs to a fraction of a full priced new flowmeter.
No problem. The quick start guide is designed to make installing the flow meters a simple task. Everything you require for set up will be found in the peli-box supplied with the flowmeter.
Every flow meter is tested upon shipping and return as part of our ISO9001 procedure. Also, as part of this procedure, the flow meter is calibrated once a year. If a copy of the calibration certificate is needed let us know.
The flow meters typically provide an accuracy of ±1 to 2% of rate, so if you are measuring 100l/sec then the accuracy is between 98-102l/sec.
We are here to help. If the self-help and quick start guides do not help, then call one of our technical support engineers on +44 (0) 1527 882060. We have supplied and supported many clamp on rental installations throughout Europe.
First, contact us for a quote. If you are happy with the quote then send us a purchase order. Or alternatively call us with credit card details and fill out and send us a rental agreement form.
If the stock is permitting, and all paperwork is received by 12pm then flow meters can usually be available the next day.
The minimum hire period for flow meters is one week.
Once you have the meter you can rent it for as long as you need it. However, it would help if you can let us know that you wish to extend the rental period. Upon return the meter is off-hired and once checked and tested, an invoice will be issued to you. Also, if you extend your rental past a 4, 8 or 12 week rental threshold, then you are entitled to a discount.
You are only charged for the period of time for which you have the flowmeter. So, if a flowmeter is returned 3 days late you are only charged for 3 extra days, and each of these days is charged at one fifth of the weeks hire cost.
Normally, you will use your own courier but if you have any problems let us know and we can arrange a pick up the day after you notify us, but you will be charged for the carriage and this cost will be added to the invoice.
Without exception, all our flow meters are tested. If you need a 110v plug instead of the standard 230v plug let us know.
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.
Of course, we make a small surcharge for each set of transducers. Most applications only require one set, but on occasion some people may require two, for more diverse pipe sizes and applications.
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.
After the equipment has been shipped, it is the responsibility of the hirer. However, in our experience it is rare that any of our flow meters are damaged. Our flow meters are tough, as well as accurate, and reliable.
We have hired more ultrasonic clamp on flow meters than any other company in Europe. We are now one of the world's largest distributors of GE Panametrics flow meters. We always review your application before hire so no unwanted surprises are encountered. Every effort has been made to make your flow meter hire and enjoyable experience: quick start guides to help you set up with ease, online videos for further help, rugged packaging for extra durability anywhere, and real flow engineers available for online/telephone support.