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The PM880 CA hygrometer is a complete, portable system with options and accessories to meet all industrial moisture measurement needs. This hygrometer is small, lightweight, and easy to use. The large LCD displays moisture readings in dew point (°C or °F), ppmv, ppmw, lb/MMSCF (natural gas), and a variety of other unit options. Data can be viewed in alphanumeric or graphic formats. A 120 or 230 VAC power supply allows for continuous operation of the analyzer.

The PM880 CA comes in a soft carrying case with zippered compartments, a handle, and a shoulder strap. The case accommodates the PM880 AC, a sample system, fl exible hosing, probes with protective covers, a Moisture Image Series probe electronics module, an operating manual, power supply, and probe cables. The carrying bag is safe for transporting the PM880 CA and accessories around a site.



  • Hand-held portable design
  • 120 or 230 VAC line power for continuous operation
  • Weather-resistant
  • Large graphic display
  • Internal data logger
  • IrDA® communication with PC
  • Stores up to 60 log/site fi les
  • Simple programming via graphic user interface
  • Compatible with all GE moisture probes
  • Lightweight hand-held sample system
  • Convenient carrying bag to store hygrometer and all accessories

Informação adicional



This rugged, line-powered, portable hygrometer measures moisture in gases and non-aqueous liquids. It is used in conjunction with Moisture

Image® Series (MIS), TF and M Series moisture probes for applications including:

  • Chemical and petrochemical gases
  • Non-aqueous liquid applications
  • Air separation plants
  • Tanker preparation and fi lling
  • Industrial gases
  • Gas cylinder preparation and fi lling
  • Shipboard applications
  • SF6 circuit breakers
  • Furnace gases/heat treating
  • General plant/facility maintenance
Channels Single channel
Dimensions ·         Size: 9.4 x 5.5 x 1.5 in (238 x 138 x 38 mm)

·         Weight, electronics: 2.5 lb (1.13 kg)

·         Weight, sample system: 4 lb (1.8 kg)

Enclosure Ruggedized plastic


Power 120 or 240 VAC, 50-60 Hz power supply with appropriate power cord
Memory FLASH memory
Operating Temperature 14° to 122°F (–10° to 50°C)
Keypad 25-key, rubberized, tactile membrane
Display 240 x 200 pixel, graphic backlit LCD display
Printer/Terminal Output Infrared communication port
Cables Cable type dependent on probe type: M Series, TF Series, or Moisture Image Series. LEMO®-to-bayonet connector
Cable Length ·         Standard: 10 ft (3 m)

·         Optional: Consult GE for other lengths

European Compliance Complies with EMC Directive 2004/108//EC, EN61326 Annex A For EN61000-4-3, the PM880 meets performance Criteria A and in a limited number of frequencies, performance Criteria B per EN61326.


Site Parameter Programming Menu-driven, graphic, operator interface uses keypad and soft-function keys. Online help functions. Memory storage for saving site parameters.
Data Logging Memory capacity to log over 100,000 moisture data points. Programmable keypad for log units, update times, and start and stop times.
Display Functions Displays measurements and logged data in alphanumeric or graphic format. Language options: Dutch, English, French, German, Italian, Portuguese, Russian, Castilian Spanish, Latin-American Spanish, Swedish
Display Units ·         Moisture: DP temperature, ppmv, ppmw, % RH, lb/MMSCF, and others

·         Temperature: °F, °C, and °K

·         Pressure: psig, bar, kPa (gauge), kg/cm2 (gauge), and others

Moisture Measurement

Compatibility Compatible with all GE aluminum oxide moisture probes: M Series, TF Series, and Moisture Image Series. Each probe type requires a diff erent type of I/O cable.
Calibration GE moisture sensors are computer-calibrated to National Institute of Standards and Technology (NIST) traceable moisture concentrations.

Dew/Frost Point Temperature

Overall Calibration Range Capability -166°F to 140°F (–110°C to 60°C)
Calibration Range Options ·         Standard: –112°F to 68°F (–80°C to 20°C) with data to –166°F (–110°C)

·         Ultralow: –166°F to –58°F (–110°C to –50°C)

·         Extended high: –112°F to 140°F (–80°C to 60°C) with data to -166°F

Accuracy ·         ±3.6°F (±2°C) from –85°F to 50°F (–65°C to 10°C)

·         ±5.4°F (±3°C) from –112°F to –87°F (–80°C to –66°C)

Repeatability ·         ±0.9°F (±0.5°C) from –85°F to 50°F (–65°C to 10°C)

·         ±1.8°F (±1.0°C) from –112°F to –87°F (–80°C to –66°C)

Operating Pressure 5 µ of Hg to 5000 psig (345 bar) limited by pressure sensor?see pressure measurement specifications

Temperature Measurement

Optional thermistor available for all GE moisture probes

Range –22° to 158°F (–30° to 70°C)
Accuracy ±0.3°F (±0.5°C) at -22°F (–30°C)

Pressure Measurement

Optional pressure sensor available for TF Series and Moisture Image Series moisture probes

Ranges ·         30 to 300 psig (3 to 21 bar)

·         50 to 500 psig (4 to 35 bar)

·         100 to 1000 psig (7 to 69 bar)

·         300 to 3000 psig (21 to 207 bar)

·         500 to 5000 psig (35 to 345 bar)

Accuracy ±1% at full scale
Proof Pressure Three times span of available range up to maximum 7500 psig (518 bar)

Sample System

The SS880A standard sample system comprises an inlet needle valve, a built-in coalescing fi lter and sample cell with a bypass needle valve and venting tube, a pressure gauge (various ranges), and an outlet needle valve with venting tube.

Wetted Parts 316 SS
Operating Pressure Confi gurations available for 300; 500; 1000; 2000; or 3000 psig (21, 35, 69, 207, or 345 bar), dependent on pressure gauge)
Maximum Pressure Rating ·         Standard: 3000 psig (207 bar)

·         Optional: 5000 psig (345 bar)

Other Options ·         Inlet pressure regulator, 0 to 500 psig (1 to 345 bar) outlet

·         Armored flowmeter, 1.3 to 13 SCFH

·         10-ft (3-m), flexible, polytetrafl uoroethylene-lined, braided–stainless steel hose with 1/8-inch tube connections. Not recommended for dew point temperatures below –103°F (–75°C).


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