XGM868i Panametrics Gas Flow Meter - clamp on/wetted gas flow meters

XGM868i Gas Flowmeter

  • Ultrasonic Flow Metering System Complete metering system for virtually any gas
  • Economical Compact Transmitter Creates no pressure drop, has no moving parts to collect debris and seldom requires maintenance
  • Optional Dual-Channel Provides enhanced accuracy when measuring two paths on a single pipe
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Case Studies


The XGM868i from Panametrics is a gas flow meter designed to measure the flow rate of almost any gas. It is suitable for measurement of vent gases, waste gases, biogases, hydrocarbon gases, vapor recovery and more. No pressure drop is caused by installation of the unit and it requires very little maintenance as it has no moving parts to collect debris. The meter is easily installed and provides reliable drift free operation. All this in a low cost transmitter.

Flow rate data can either be displayed locally or can be displayed on a remote system via an analog or digital communications link.

The gas flow meter can be installed directly at the flow measurement point as the electronic components are housed in a compact transmitter package. This simplifies the wiring of the instrument.

A dual channel model of the XGM868 gas flow meter is also available which allows single path measurement on two pipes or measurement of two paths on a single pipe.

Manufactured by: GE Panametrics
Model: XGM868i Gas Flowmeter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Hydrocarbon gases
Fuel gases
Vent gases
Digester gases
Waste gases
Incinerator air flow
Vapor recovery
Stack gases
Other gases


Operation and Performance
Fluid Types Acoustically conductive gases
Pipe Sizes 2 to 120 in. NB (50 to 3,000 mm) and larger
Pipe Materials All metals. Consult RS Hydro for other materials
Flow Accuracy (Velocity) ±1% to 2% of reading typical
Accuracy depends on pipe size and whether measurement is one-path or two-path. Accuracy to ±0.5% of reading may be achievable with process calibration.
Repeatability ±0.2% to 0.5% of reading
Range (Bidirectional) -150 ft/s to 150 ft/s (-46 m/s to 46 m/s)
Rangeability (Overall) 1500:1
Specifications assume a fully developed flow profile (typically 20 diameters upstream and 10 diameters downstream of straight pipe run) and flow velocity greater than 3 ft/s (1 m/s).
Measurement Parameters Mass flow, standard and actual flow, totalized flow, and flow velocity
Flow Measurement Transit time
Enclosures • Standard: Epoxy-coated aluminum Type 4X/IP66 Class I,
Division 1, Groups B,C&D
Flameproof ISSeP 02ATEX008
II 2 GD EEx d IIC T5 IP66 T95°C
• Optional: Stainless steel
Dimensions (h x d) Standard: Size 8.2 in x 6.6 in (208 mm x 168 mm),
Weight 10 lb (4.5 kg)
Channels • Standard: One channel
• Optional: Two channels (for two pipes or two-path
Display Optional: 2 line x 16 character backlit LCD display,
configurable to display up to four measurement
parameters in sequence
Keypad Built-in infrared, six-button keypad for full functionality
Power Supplies • Standard: 90-260 VAC
• Optional: 12 to 28 VDC, ±5%
Power Consumption 20 W maximum
Operating Temperature -40°F to 140°F (-40°C to 60°C)
Storage Temperature -67°F to 167°F (-55°C to 75°C)
Standard Inputs/Outputs Two 0/4 to 20 mA isolated outputs, 600 Ω maximum load
Optional Inputs/Outputs All analog and digital I/O are available in special combinations. Consult GE for available option cards.
• Two additional 0/4 to 20 mA isolated outputs, 1000 Ω maximum load
• Two 4 to 20 mA isolated inputs, 24 VDC loop power
• Two or four isolated, three-wire RTD (temperature)
inputs, -148°F to 662°F (-100°C to 350°C), 100 Ω platinum
• Two or four pulse or frequency outputs, optically
isolated, 3 A maximum, 100 VDC maximum, 1 W
maximum, from DC to 10 KHz maximum
• Alarm relays:
Two or four Form C relays;
120 VAC, 28 VDC maximum, 5 A maximum;
DC 30 W maximum, AC 60 VA maximum
Digital Interfaces • Standard: RS232
• Optional: RS485 (multiuser)
• Optional: Modbus®
RS485 or TCP protocol
• Optional: Ethernet
• Optional: OPC server
• Optional: Foundation Fieldbus®
Data Logging • Standard: None
• Optional: Memory capacity (linear and/or circular type)
to log over 150,000 flow data points
European Compliance System complies with EMC Directive 89/336/EEC, 73/23/EEC LVD (Installation Category II, Pollution Degree 2) and transducers comply with PED 97/23/EC for DN<25
Wetted Ultrasonic Flow Transducers
Temperature Range • Standard: -58°F to 302°F (-50°C to 150°C)
• Optional (overall): -310°F to 842°F (-190°C to 450°C)
Pressure Range • Standard: 0 psig to 2700 psig (1 bar to 187 bar)
• Optional: 3480 psig (240 bar) maximum
Materials • Standard: Titanium
• Optional: Monel® or Hastelloy® alloys
Process Connections Flanged and compression fittings
Mountings Flowcell or cold tap
Area Classifications • Standard: General purpose
• Optional: Weatherproof Type 4X/IP66
• Optional: Explosion-proof Class I, Division 1,
Groups B,C,&D
• Optional: Flameproof II 2 GD EEx d IIC T6
Transducers and flowcells for special applications are
available. Consult GE for details.



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.