GE – Portable Ultrasonic Liquid Flow Meter (Model: TransPort PT878)

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 TransPort PT878 – Portable Ultrasonic Liquid Flow Meter

The TransPort PT878 flow meter packs big features into a small, lightweight package. It is a go-anywhere portable meter with a  rechargeable internal battery pack and universal power supply charger that is so easy to use that you can make your first flow measurement within just minutes of opening the box.
The PT878 is one of the most powerful portable ultrasonic liquid flow meters available. It measures flow from outside plastic, metal or concrete-lined pipes nonintrusively, so there’s no pressure drop, leaks or contamination. Patented correlation algorithms resolve transit-time signals like no other flow meter and allow the PT878 to measure flow in ultrapure to extremely dirty liquids such as raw sewage and slurries.
The PT878's built-in datalogger can store more than 100,000 data points and up to 32 sets of site location parameters. An infrared port transfers datalog, site and other files to your PC. Temperature transducers are available for measuring energy flow rate. The rechargeable battery provides six to eight hours of continuous remote operation. A rugged, sealed enclosure provides IP67 submersibility to protect the unit against water damage. 

The PT878 flow meter is available with English only or with English and a second language. Languages available: Dutch, Castilian, French, German, Italian, Japanese, Portuguese, Russian, South America Spanish, Swedish.

    Small, lightweight and easy to use
    Non-intrusive flow measurement for most pipe sizes and materials, including lined pipes
    Velocity, volumetric and energy flow rates
    Totalized flow and trend data
    Logs more than 100,000 flow data points
    Multiple language user interface 
    Potable water and wastewater
    Cooling and heating water
    Ultrapure water and liquids
    Crude oil, diesel and fuel oils, lubricating oils
    Refined hydrocarbons
    Other liquids
Operation and Performance
Fluid Types Acoustically conductive fluids, including most clean liquids, and many liquids with entrained solids or gas bubbles. Maximum void fraction depends on transducer, interrogation carrier frequency, path length and pipe configuration.
Pipe Sizes 0.5 in to 300 in (12.7 mm to 7.6 m) and larger
Pipe Wall Thickness Up to 3 in (76.2 mm)
Pipe Materials All metals and most plastics. Consult GE for concrete, composite materials, and highly corroded or lined pipes.
Clamp-On Flow Accuracy (Velocity)
  • Pipe ID>6 in (150 mm): ±1% to 2% of reading typical
  • Pipe ID<6 in (150 mm): ±2% to 5% 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 ±0.1% to 0.3% of reading
Range (Bidirectional) –40 to 40 ft/s (–12.2 to 12.2 m/s)
Rangeability (Overall) 400:1
Specifications assume a fully developed flow profile (typically 10 diameters upstream and 5 diameters downstream of straight pipe run) and flow velocity greater than 1 ft/s (0.3 m/s).
Measurement Parameters Volumetric flow, totalized flow and flow velocity
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: 9 to 11 hr of continuous operation
Battery Charger Input 100 to 250 VAC, 50/60 Hz, 0.38 A
Memory FLASH memory, field-upgradable
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 35°C (95°F) is not recommended for more than one month.
Standard Inputs/Outputs
  • One 0/4 to 20 mA current output, 550 O maximum load
  • 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 transmitters
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
  • Supports multiple languages: Dutch, English, French, German, Italian, Japanese, Portuguese, Russian, Spanish, Swedish and others
European Compliance Battery-powered system complies with EMC Directive 89/336/EEC and transducers comply with PED 97/23/EC for DN<25
Clamp-On Ultrasonic Flow Transducers
Temperature Ranges
  • Standard: -40°F to 302°F (-40°C to 150°C)
  • Optional: -328°F to 752°F (-200°C to 400°C)

See specific transducer for exact temperature range.

Mountings Stainless steel chain or strap, welded or magnetic clamping fixtures
Area Classifications
  • Standard: General purpose
  • Optional: Weatherproof Type 4X/IP66
  • Optional: Submersible IP67/68
PT878 electronics are designed for general purpose areas.
Transducer Cables
  • Standard: One pair of LEMO® coaxial transducer connectors with 25-ft (8-m) cables
  • Optional: 1,000-ft (305-m) extension cables available for most transducers
Thickness-Gauge Option
Transducer Dual-element transducer
Pipe-Thickness Range 0.05 in to 3 in (1.3 mm to 76.2 mm)
Pipe Materials Most standard metal and plastic pipe materials
Accuracy ±1% typical or ±0.002 in (±0.05 mm)
Thermal Exposure Continuous operation to 100°F (37°C); 
intermittent operation to 500°F (260°C) for 10 sec followed by 2 min air cooling
Additional Options
PC-Interface Software The TransPort PT878 communicates with a PC through the infrared interface and Windows® operating systems. Consult the manual for details on sites, logs and other operations with a PC.
  • Infrared, portable, thermal printer with rechargeable battery and 120 to 240 VAC power supply/recharger
  • Weight 13 oz (370 g), size 6.3 in x 6.5 in x 2.3 in (160 mm x 164.2 mm x 59 mm), print width 4 in (104 mm)
RS232-to-Infrared Infrared adapter plugs into any available serial port to give desktop PCs infrared capability.

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