Fluid types | Acoustically conductive gases with minimum pressure requirements. See installation requirements table. |
Pipe size ranges |
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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 |
Rangeability (overall) | 150:1 |
Specifications assume a fully developed flow profile (typically 20 diameters upstream and 10 diameters downstream of straight pipe run) and flow velocity greater than 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 |
Electronics | |
Flow measurement | Patented correlation Transit-Time™ mode |
Enclosure | Submersible IP67 |
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) |
Storage temperature | –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. |
Standard inputs/outputs |
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Digital interface | Infrared communication port for printer or PC interface |
Site-parameter programming |
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Data logging |
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Display functions |
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European compliance | Battery-powered system complies with EMC directive 89/336/EEC |
Clamp-on ultrasonic flow transducers | |
Temperature ranges |
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Transducer materials | Stainless steel and plastic |
Mountings | Portable gas-transducer clamping fixtures in polycarbonate carrying cases:
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Mounting couplant | CPL-16 |
Area classifications |
TransPort PT878GC electronics are designed for general purpose areas. |
Clamp On ultrasonic flowmeter, Gas ultrasonic flowmeter, Ultrasonic flowmeter
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