GE
Sensing
Moisture Image
®
Series
Panametrics Aluminum Oxide
Moisture Probe
Moisture Image Series Probe is a
Panametrics product. Panametrics
has joined other GE high-technology
sensing businesses under a new
name–GE Industrial, Sensing.
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 Panametrics
Moisture Image Series 1 analyzer, Moisture Image
Series 2 analyzer and PM880 portable hygrometer for
industries including:
• Petrochemical
• Natural gas
• Industrial gas
• Semiconductor
• Furnace gas/heat treating
• Power generation
• Air dryer
• Pharmaceutical
• Aerospace
Applications
Features
• Intrinsically safe
• Ambient to ppb moisture measurement; 16 bit
resolution
• Three function capability with moisture sensor and
optional built-in temperature and pressure sensors
• Nonvolatile calibration data storage
• Calibrations traceable to National Institute of
Standards and Technology (NIST) or National
Physical Lab U.K. (NPL)
• Requires only twisted pair cabling, allowing probe to
be located up to 3000 ft (914 m) from analyzer
• Threaded and VCR mount configurations
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GE
Sensing
Panametrics Hygrometer Systems
and Moisture Probes
Panametrics aluminum oxide moisture probes have set
the standard of performance and value in industrial
moisture measurement for more than 40 years.
In use, the Moisture Image Series probe is coupled to
Panametrics hygrometer consoles by an interconnecting
cable. Ease of use, wide measurement range and
rigorous calibration standards make these systems the
preferred choice for industrial moisture measurement
worldwide.
Built-In Pressure and
Temperature Measurement
Accurate determination of many moisture measurement
parameters requires knowledge of the process
temperature and pressure. The inconvenience and
limitations associated with installing and using separate
temperature and pressure sensors have been eliminated,
with both capabilities being built directly into the
Moisture Image Series probe. A nonlinear NTC thermistor
to measure temperature from –22°F to 158°F
(–30°C to 70°C), and a choice of five solid-state
piezoresistive transducers to measure pressures up to
5000 psig (345 bar), are available.
Temperature and pressure input data are used by
Moisture Image Series 1 and 2 analyzers and the PM880
portable hygrometer to determine parameters such as
ppm, lbs/mmSCF and relative humidity.
MIS Electronics Module
The real power of the MIS probe comes from an
electronics module that attaches to the moisture sensor
probe. The built-in microprocessor provides 16 bit
resolution, a real performance enhancement, allowing it
to detect parts per billion (ppb) changes in moisture
concentration. In addition, it continuously monitors and
compensates the electronics to ensure long-term
stability.
Rigorous Calibration Standards
Traceable to the NIST/NPL
The aluminum oxide sensor of each MIS probe is
individually calibrated in one of the world’s most
advanced moisture calibration facilities. Developed over
several decades, this facility generates precisely known
moisture concentrations, traceable to the NIST/NPL, to
which each sensor is exposed during the calibration
process.
All data is gathered and stored by a dedicated computer
system. Calibrations are repeated over a period of many
months to ensure the stability of each individual
moisture probe. Only those probes that meet GE’s
demanding specifications for accuracy and stability are
shipped to customers.
Installation Flexibility
The Moisture Image Series probe is designed to be
located at the process, exactly where the measurement
is needed. The sensor can withstand process
temperatures of –166°F to 158°F (–110°C to 70°C) and
pressures from vacuum up to 5000 psig (345 bar). No
minimum flow rate is required. For additional flexibility,
the probe can be located up to 3000 feet (0.9 km) from
the analyzer, connected by inexpensive, unshielded,
twisted-pair cable (AWG 22). As a result, the probe can
be placed in the ideal location, even in a large plant,
without the cost, delays and installation problems
associated with special cabling.
For convenience, moisture probe calibration data is
stored in nonvolatile EEPROM, so data entry is automatic
and safe from power outage.
The Moisture Image Series probe is intrinsically safe,
saving the expense and installation problems associated
with explosion-proof housings, purges, or external zener
barriers. It is designed and certified to meet the
requirements of IEC/Zone 0 areas.
GE
Sensing
MIS Probe
Specifications
Moisture Sensor
Intrinsic Safety
Intrinsically safe when connected to
a Panametrics Moisture Series analyzer, PM880 portable
hygrometer or intrinsically safe barriers in accordance
with the user’s manual. Moisture Image Series probe:
BAS01ATEX1095
II 1 G EEx ia IIC T4 (-20°C to +80°C) and
CSA C US Class I, Division 1, Groups A,B,C&D T4,
LR44204-23
European Compliance
Complies with EMC Directive 89/336/EEC and
PED 97/23/EC for DN<25
Type
Aluminum oxide moisture sensor probe
Calibration
Each sensor is individually computer calibrated against
known moisture concentrations, traceable to NIST or
NPL.
Dew/Frost Point Calibration Ranges
• Overall calibration range capability: 140°F to –166°F
(60°C to –110°C)
• 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)
Accuracy
• ±3.6°F (±2°C) from 140°F to -85°F (60°C to –65°C)
• ±5.4°F (±3°C) from -86°F to -166°F (–66°C to –110°C)
Repeatability
• ±0.9°F (±0.5°C) from 140°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)
Temperature
• Sensor operating temperature (process environment):
–166°F to 158°F (–110°C to 70°C)
• Operating temperature for Moisture Image Series
probe electronics module: 32°F to 140°F (0°C to 60°C)
• Storage temperature: 158°F (70°C) maximum
Operating Pressure
5 : of Hg to 5000 psig (345 bar)
Limited by optional pressure sensor—see pressure sensor
ranges
Flow Range
• Gases: Static to 10,000 cm/s linear velocity at 1 atm
• Liquids: Static to 10 cm/s linear velocity at density of
1 g/cc
Response Time
Less than five seconds for 63% step change in moisture
content in either wet-up or dry-down cycle
MIS Probe/Analyzer Separation
3000 ft (0.9 km) maximum recommended length (consult
factory for longer distances)
Moisture Image Series Probe/Analyzer Compatibility
• Moisture Image Series 1 analyzer
• Moisture Image Series 2 analyzer
• PM880 portable hygrometer
MIS Probe/Analyzer Cable
Unshielded, twisted pair, AWG 22
Limited Warranty
• Calibration: Six months from delivery
• Materials and workmanship: One year from delivery
Built-In Temperature Sensor
Type
Nonlinear NTC thermistor (resultant temperature
linearized by microprocessor)
Operating Range
–22°F to 158°F (–30°C to 70°C)
Accuracy
±0.9°F (±0.5°C) overall
Response Time (Maximum)
One second in well stirred oil or 10 seconds in still air for
a 63% step change in increasing or decreasing
temperature
GE
Sensing
MIS Probe
Specifications
©2005 GE. All rights reserved.
920-047C
All specifications are subject to change for product improvement without notice.
Moisture Image®is a trademark of GE. GE®is a registered trademark of General
Electric 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.
www.gesensing.com
Built-In Pressure Sensor
Type
Solid-state/piezoresistive
Available 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% of full scale
Pressure Rating
Three times the span of the available range to a
maximum of 7500 psig (518 bar)
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