GS868 steam flow meter for mass flow measurement - inline or clamp on

GS868 Steam Flow Meter

  • Convenient Installation No pressure drop, easy installation, high accuracy and low maintenance
  • Two-Path Measurement For maximum accuracy two-path measurement is optional
  • Broad Range Of Measurement Measurement velocities capable from 2 in to 48 in diameter and velocities from 0.1 to 150 ft/s
Product Options


The GS868 flow meter from Panametrics is specifically designed for mass flow measurement of steam. It is suitable for use on most types of steam application including saturated or superheated steam, pneumatic power stations, heating, ventilating and air conditioning (HVAC), water purification and distillation, chemical and petrochemical industries and more.

The GS868 steam flow meter is a complete package which offers wide rangeability, no pressure drop, easy installation, high accuracy and requires low maintenance.

The GS868 flowmeter has no parts which collect debris so therefore requires no cleaning. There are no moving parts to wear out so no lubrication is needed. As the transducers do not obstruct the flow, they will generally not cause any pressure drop.

Sending data to where it needs to go is easy with the standard or optional range of additional analog outputs and alarms. Outputs can be set up and calibrated by using the built in keypad or from a computer using the PanaView software.

Maximum accuracy can be achieved by using the two channel steam flow meter to measure two different paths at the same location. The two channel version can also be used to measure the flow in two different pipes.

Manufactured by: GE Panametrics
Model: GS868 Steam Flow Meter

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Saturated or superheated steam
Heating, ventilating and air conditioning (HVAC)
Water purification and distillation
Chemical and petrochemical industries
Pneumatic power systems
Electric power generation


Fluid Types Saturated and superheated steam
Pipe Sizes 2 in to 48 in NB (50 mm to 1200 mm DN)
Pipe Materials All metals. Consult GE 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 to 150 ft/s (-46 to 46 m/s)
Rangeability (Overall) 1500:1
Specifications assume a fully developed fl ow profi le (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 volumetric flow, totalized flow, and flow velocity


Flow Measurement Patented Correlation Transit-Time mode
Enclosures - Standard: Epoxy-coated aluminum weatherproof Type 4X/IP66, FM/CSA Class I, Division 2, Groups A,B,C&D
- Optional: Stainless steel, fi berglass, explosion-proof, fl ameproof, ISSep 03ATEX113
Dimensions Standard: Weight 11 lb (5 kg),
Size (h x w x d) 14.24 in x 11.4 in x 5.12 in (362 mm x 290 mm x 130 mm)
Channels - Standard: One channel
- Optional: Two channels (for two pipes or two-paths)
Display Two independent software-confi gurable 64 x 128 pixel backlit LCD graphic displays
Keypad 39-key tactile-feedback membrane keypad
Power Supplies - Standard: 100 to 130 VAC, 50/60 Hz or 200 to 265 VAC, 50/60 Hz
- Optional: 12 to 28 VDC, ±5%
Power Consumption 20 W maximum
Operating Temperature -4°F to 131°F (-20°C to 55°C)
Storage Temperature -67°F to 167°F (-55°C to 75°C)
Electronics (continued)
Standard Inputs/Outputs Two 0/4 to 20 mA isolated outputs, 550Ω maximum load
Optional Inputs/Outputs There are six additional slots available for any combination of the following I/O boards:
- - Analog outputs: each with four isolated 0/4 to 20 mA outputs, 1 kΩ maximum load
- Analog input board with two isolated 4 to 20 mA inputs and 24 V loop power
- RTD input board with two isolated, three-wire, RTD inputs; span -148°F to 662°F (-100°C to 350°C); 100
- Totalizer/frequency outputs: - Totalizer mode: Pulse per defined unit of parameter - Frequency mode: Pulse frequency proportional to magnitude of parameter (e.g., 10 Hz = 1 ft3/h)
- Alarm relays: - General purpose - Hermetically sealed
Digital Interfaces - Standard: RS232
- Optional: RS485 (multiuser)
- Optional: Modbus® RS485 or TCP protocol
- Optional: Ethernet
- Optional: OPC server
- Optional: Foundation fieldbus
Site Parameter Programming Menu-driven operator interface using keypad and soft function keys
Data Logging Memory capacity (linear and/or circular type) to log over 43,000 flow data points
Display Functions - Graphic display shows flow in numerical or graphic format
- Displays logged data and diagnostics
European Compliance Complies with EMC Directive 89/336/EEC, 73/23/EEC LVD (Installation Category II, Pollution Degree 2) and PED 97/23/EC for DN<25 Wetted Ultrasonic Flow Transducers Temperature Ranges Overall range -190° to 450°C (-310° to 842°F)
Pressure Ranges - Standard: 0 to 2700 psig (1 to 187 bar)
- Optional: 3480 psig (240 bar) maximum
Transducer Materials Standard: Titanium or stainless steel
Transducer Mounting Flanged Port Spool piece or cold tap
Area Classifications - Standard: Weatherproof Type 4/IP65
- Optional: Explosion-proof Class I, Division 1, Groups C&D
- Optional: Flameproof II 2 G EEx d IIC T6

Additional Options

PanaView PC-Interface Software The DigitalFlow GS868 communicates with a PC through a serial interface and Windows® operating systems. Consult the manual for details on sites, logs and other operations with a PC.



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.