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: Panametrics
Model: Panametrics PT878GC
Air separation gases
|Operation and performance|
|Fluid types||Acoustically conductive gases with minimum pressure requirements. See installation requirements table.|
|Pipe size ranges||
|Pipe wall thickness||Thicker walled pipes require greater gas density. See Installation Requirements Table.|
|Pipe materials||All metals and plastics. No lined pipes|
|Flow accuracy (velocity)||
Accuracy depends on pipe size and other factors.
|Repeatability||±0.2% to 0.5% of reading|
|Range (bidirectional)||See Installation Requirements Table|
|Specifications assume a fully developed flow profile (typically 20 diameters upstream and 10 diameters downstream of straight pipe run) and flow velocity greater than 5 ft/s (1.5 m/s). Pipes 2 inches (50 mm) or less require a minimum of 10 ft (3 m) of continuous straight run without flanges, welds or coupling joints.|
|Measurement parameters||Standard and actual volumetric flow, flow velocity and mass flow|
|Flow measurement||Patented correlation Transit-Time™ mode|
|Dimensions||Weight 3 lb (1.36 kg), size (h x w x d) 9.4 in x 5.5 in x 1.5 in (238 mm x 138 mm x 38 mm)|
|Display||240 x 200 pixel backlit LCD graphic display|
|Keypad||25-key, rubberized tactile membrane keypad|
|Internal battery||Rechargeable battery: 8 hours of continuous operation|
|Battery charger input||100 to 250 VAC, 50/60 Hz, 0.38 A|
|Memory||FLASH memory, field-upgradeable|
|Operating temperature||–4°F to 131°F (–20°C to 55°C)|
–40°F to 158°F (–40°C to 70°C)
To ensure maximum battery life, storage temperature exceeding 95°F (35°C) is not recommended for more than one month.
|Digital interface||Infrared communication port for printer or PC interface|
|European compliance||Battery-powered system complies with EMC directive 89/336/EEC|
|Clamp-on ultrasonic flow transducers|
|Transducer materials||Stainless steel and plastic|
|Mountings||Portable gas-transducer clamping fixtures in polycarbonate carrying cases:
TransPort PT878GC electronics are designed for general purpose areas.