GE
Sensing
Applications
This rugged, intrinsically safe, portable hygrometer
measures moisture in gases and non-aqueous liquids. It
is used in conjunction with Moisture Image
TF and M Series moisture probes for applications
including:
• Natural gas
• Chemical and petrochemical gases
• Non-aqueous liquid applications
• Air separation plants
• Tanker preparation and filling
• Industrial gases
• Gas cylinder preparation and filling
• Shipboard applications
•SF6circuit breakers
• Furnace gases/heat treating
®
Series (MIS),
Features
• Hand-held portable design
• Intrinsically safe
• IP67 rated
• Large graphic display
• Internal data logger
®
•IrDA
• Stores up to 60 log/site files
• 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
• Self-paced e-learning class provides comprehensive
communication with PC
accessories
review of features and operation
• General plant/facility maintenance
PM880
Panametrics Portable
Hygrometer
PM880 is a Panametrics product.
Panametrics has joined other GE
high-technology sensing businesses
under a new name
GE Industrial, Sensing.
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g
GE
Sensing
The PM880 hygrometer is a complete, intrinsically safe,
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 rechargeable battery
pack and battery charger make this the ideal
go-anywhere moisture analyzer.
The PM880 comes 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, an Moisture
Image Series probe electronics module, an operating
manual, a battery pack, a battery charger, and probe
cables.
Training for the PM880 is available on-site, in the factory
or on line. GE offers extended warranties and service
agreements for the PM880 as well as a range of services
including NIST-traceable calibration, field calibration,
rentals and moisture surveys.
PM880 Accessories
1 Portable, infrared thermal printer and battery charger
(non-hazardous areas only).
2 Zippered soft carrying case
3 Flexible braided–stainless steel hose
4 MIS probe electronics module
5 TF moisture probe
6 M Series moisture probe with probe cable
7 Portable sample system
8 PC infrared adapter
9 PM880 battery and charger
2
The PM880’s large LCD displays moisture readings in dew point (°C or °F),
ppmv, ppmw, lb/MMSCF (natural gas), and a variety of other unit options
in graphic or alphanumeric formats.
1
3
9
8
A self-paced, online training class is available to learn
more about the features and operation of the PM880
hygrometer. The comprehensive course contains nine
learning modules examining topics including basic
moisture measurement theory, programming, sample
system operation, and basic troubleshooting.
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4
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GE
Sensing
PM880
Cables
Cable type dependent on probe type: M Series, TF Series,
or Moisture Image Series. LEMO
®
-to-bayonet connector
Specifications
Overall
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
Type 4X, IP67
Electronics
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.
Cable Length
• Standard: 10 ft (3 m)
• Optional: Consult GE for other lengths
Hazardous Area Classification
Intrinsic-safety certification: 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
Operational
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
Keypad
25-key, rubberized, tactile membrane
Display
240 x 200 pixel, graphic backlit LCD display
Printer/Terminal Output
Infrared communication port
Compatibility
Compatible with all GE aluminum oxide moisture probes:
M Series, TF Series, and Moisture Image Series. Each
probe type requires a different type of I/O cable.
GE
Sensing
PM880
Pressure Measurement
Optional pressure sensor available for TF Series and
Moisture Image Series moisture probes
Specifications
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 176°F (20° 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)
Accuracy
• ±3.6°F (±2°C) from 140°F to -85°F (60° to –65°C)
• ±5.4°F (±3°C) from -85°F to -166°F (–65°C to –110°C)
Repeatability
• ±0.9°F (±0.5°C) from 140°F to 149°F (60°C to –65°C)
• ±1.8°F (±1°C) from -85°F to -166°F (–65°C to –110°C)
Operating Pressure
5 μ of Hg to 5000 psig (345 bar) limited by pressure
sensor—see pressure measurement specifications
Temperature Measurement
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 filter 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)
Optional thermistor available for all GE moisture probes
Range
–22° to 158°F (–30° to 70°C)
Accuracy
±0.9°F (±0.5°C) at -22°F (–30°C)
©2008 GE. All rights reserved.
920-007E
All specifications are subject to change for product improvement without notice. Moisture
Image®is a registered trademarks of GE. GE®is a registered trademark of General Electric
g
Co. Other company or product names mentioned in this document may be trademarks or
registered trademarks of their respective companies, which are not affiliated with GE.
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, polytetrafluoroethylene-lined,
braided–stainless steel hose with 1/4-inch tube
connections. Not recommended for dew point
temperatures below –103°F (–75°C).
www.gesensing.com
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