| Operation and performance |
| Fluid types |
Acoustically conductive gases with minimum pressure requirements. See installation requirements table. |
| Pipe size ranges |
- 0.75 in to 12 in (20 mm to 300 mm) with TransPort PT878GC-01 electronics
- 4 in to 24 in (100 mm 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 |
| Flow accuracy (velocity) |
- 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 |
| 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 |
- 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 transmitter
|
| Digital interface |
Infrared communication port for printer or PC interface |
| Site-parameter programming |
- Menu-driven operator interface using keypad and “soft” function keys
- Online help functions including pipe tables
- Storage for saving site parameters
|
| Data logging |
- Memory capacity to log over 100,000 flow data points
- Keypad programmable for log units, update times, and start and stop time
|
| Display functions |
- Graphic display shows flow in numerical or graphic format
- Displays logged data
- Extensive diagnostic parameters
|
| European compliance |
Battery-powered system complies with EMC directive 89/336/EEC |
| Clamp-on ultrasonic flow transducers |
| Temperature ranges |
- Standard: -40°F to 266°F (-40°C to 130°C)
- Optional (overall range): -40°F to 446°F (-40°C to 230°C)
|
| Transducer materials |
Stainless steel and plastic |
| Mountings |
Portable gas-transducer clamping fixtures in polycarbonate carrying cases:
- PCFG-1 for pipes smaller than 12 in (300 mm) in diameter
- PCFG-2 for pipes larger than 12 in (300 mm) in diameter
|
| Mounting couplant |
CPL-16 |
| Area classifications |
- Standard: general purpose
- Optional: weatherproof Type 4 IP65
- Optional: explosion-proof Class I, Division 1, Groups C and D
- Optional: flameproof EX II 2 G EEx md IIC T6–T3 (certification pending)
TransPort PT878GC electronics are designed for general purpose areas. |
