PM880 - Portable Hygrometer | Moisture Analyzer

PM880 Portable Hygrometer

The PM880 moisture analyzer is a complete, portable hygrometer for measuring the moisture/humidity content of industrial gases and liquids. With the combined experience and expertise of the former Panametrics and General Eastern businesses, the PM880 was designed to meet the most demanding process applications. Utilizing the proven aluminum oxide moisture sensor, the PM880 can express the absolute humidity of gases and liquids in dew point temperature, parts per million by volume (PPMv), parts per million by weight (PPMw), pounds per million standard cubic feet in natural gas, relative humidity, and other measurement units.

The PM880 portable hygrometer comes with full data logging capabilities and a built-in infrared port to send data to a PC for detailed analysis and reporting. The PM880 is available as a battery powered application requiring intrinsic safety, or as a non-intrinsically safe version which operates on line power. The PM880 ships in a soft carrying case with zippered compartments, a handle, and a shoulder strap. The case accommodates the PM880, a sample system, flexible hosing, probes with protective covers, MIS Probe electronics module, operating manual, battery pack, power supply or battery charger, and probe cables. The carrying bag is safe for transporting the PM880 and accessories into hazardous areas.

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  • Absolute humidity in liquids and gases
  • Ambient to ppb moisture range
  • Single channel with ability to store multiple site locations
  • 240x200 pixel LCD graphic display with backlight
  • Compatible with all GE Panametrics aluminum oxide moisture probes
  • Up to 12 hours of battery life
  • Optional sampling system suitable for natural gas and other industrial gases and liquids
  • Intrinsically safe, portable model:
    • Up to 12 hours of battery life
    • Certified to Cenelec Eex ia IIC T3
  • PM880 AC:
    • Continuous operation from 120 or 230 VAC power supply

This Panametrics aluminum oxide moisture sensor probe measures moisture concentration in gases and non-aqueous liquids from trace to ambient levels. It is designed to be used in conjunction with all Panametrics moisture analyzers for industries including:

  • Petrochemical
  • Natural gas
  • Industrial gas
  • Semiconductor
  • Furnace gas/heat treating
  • Power generation
  • Air dryer
  • Pharmaceutical
  • Aerospace
Channels Single channel
  • 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 Type 4X, IP67


Internal Battery Rechargeable. PM880 batteries can be installed or removed in hazardous areas. Batteries must be recharged in non-hazardous areas only.
Battery Life 15 to 24 hours depending on type of probe; battery life reduced when operating below 32°F (0°C)
Battery Charger
  • Switchable input: 115 or 230 VAC, 50/60 Hz
  • Requires approximately three hours for full battery recharge
Memory FLASH memory
Operating Temperature 14° to 122°F (–10° to 50°C) To ensure maximum battery life, GE does not recommend storing at temperatures exceeding 95°F (35°C) for longer than one month.
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
Hazardous Area Classifi cation Intrinsic-safety certifi cation: Baseefa (2001) Ltd. II 1 G EEx ia IIC T3 (–20°C ≤ Ta ≤ +50°C) Baseefa02ATEX0191; and CSA C US Class I, Division 1, Groups A, B, C & D, Type 6
European Compliance Complies with EMC Directive 89/336/EEC, ATEX Directive 94/9/EC


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, Spanish
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: 68°F to -112°F (20°C to –80°C) with data to -166°F (–110°C)
  • Ultralow: -58°F to -166°F (–50°C to –110°C)
  • Extended high: 140°F to -112°F (60°C to –80°C) with data to -166°F (–110°C)
  • ±3.6°F (±2°C) from 140°F to -85°F (60°C to –65°C)
  • ±5.4°F (±3°C) from -85°F to -166°F (–65°C to –110°C)
  • ±0.9°F (±0.5°C) from 110°F to -85°F (60°C to –65°C)
  • ±1.8°F (±1.0°C) from -86°F to -166°F (–66°C to –110°C)
Operating Pressure 5 μ of Hg to 5000 psig (345 bar) limited by pressure sensor―see pressure measurement specifi cations

Temperature Measurement

Optional thermistor available for all GE moisture probes

Range –22°F to 158°F (–30°C to 70°C)
Accuracy ±0.9°F (±0.5°C) at -22°F (–30°C)

Pressure Measurement

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

  • 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 Configurations 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 fl owmeter, 1.3 to 13 SCFH
  • 10-ft (3-m), fl exible, polytetrafl uoroethylene-lined, braided–stainless steel hose with 1/4-inch tube connections. Not recommended for dew point temperatures below –103°F (–75°C).

Descriptions Dutch English Français Deutsch Italiano Japanese Polish Português Español
Basic Hygrometry Principles Basic Hygrometry Principles
M Series Aluminium Oxide Moisture Probe M Series Aluminium Oxide Moisture Probe
Model PM880 AC Portable Hygrometer User's Manual Model PM880 AC Portable Hygrometer User\'s Manual
PM880 Higrometro Portatil PM880 Higrometro Portatil
PM880 Portable Hygrometer PM880 Portable Hygrometer PM880 Portable Hygrometer PM880 Portable Hygrometer
PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual PM880 Portable Hygrometer Operating Manual
TF Series Aluminium Oxide Moisture Probe TF Series Aluminium Oxide Moisture Probe

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