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M Series - Aluminum Oxide Moisture Probe

M_Series

Panametrics aluminum oxide moisture probes have set the standard of performance and value in industrial moisture measurement for more than 40 years. In use, M Series moisture probes are 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.

 

Superior Performance

Film thickness of the oxide layer is critical to the performance of this type of sensor. GE manufactures sensors with an oxide film thickness that causes them to exhibit true absolute humidity, rather than relative humidity response. This critical film thickness also gives the M Series probe quick response and exceptional calibration stability.


Features

  • Intrinsically safe when used in conjunction with certified electronics or zener barriers
  • Superior sensitivity, response speed and calibration stability
  • Optional temperature sensor
  • Calibrations traceable to National Institute of Standards and Technology (NIST) or National Physical Lab U.K. (NPL)
  • Designed for in situ applications or in conjunction with sample conditioning systems
  • True absolute humidity sensor
  • Wide dynamic range

Applications

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

 

Specifications

 

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.

M Series moisture probe:

BAS01ATEX1096X

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

Calibration

Each probe is individually computer calibrated against

known moisture concentrations, traceable to NIST or

NPL.

Dew/Frost Point Calibration Ranges

• Overall capability: 140°F to -166°F (60°C to –110°C)

by request

• Standard calibration range: 68°F to -112°F

(20°C to –80°C) with data to -166°F (-110°C)

• Ultralow calibration range: -58°F to -148°F

(-50°C to –100°C) with data to -166°F (-110°C)

Accuracy

• ±3.6°F (±2°C) in range of 140°F to -85°F (60°C to –65°C)

• ±5.4°F (±3°C) in range of -86°F to -166°F

(-66°C to 110°C)

Repeatability

• ±0.9°F (±0.5°C) in range of 140°F to -85°F

(60°C to –65°C)

• ±1.8°F (±1.0°C) in range of -86°F to -166°F

(–66°C to –110°C)


 

Temperature

• Operating: -166°F to 158°F (–110°C to 70°C)

• Storage: Maximum 158°F (70°C)

Operating Pressure (Dependent on Mount)

• Flange process connection (M1):

5 :Hg to 75 psig (6 bar)

• Threaded process connection (M2):

5 :Hg to 5000 psig (345 bar)

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

Consult factory for specifications of other moisture probes

available for special applications.

Input Voltage

1 VAC, 77 Hz

Impedance Range

50 kS to 2 MS depending on water vapor

Limited Warranty

• Calibration: Six months from delivery

• Materials and workmanship: One year from delivery

Optional Temperature Sensor

Type

Nonlinear negative temperature

coefficient (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)

1 second in well-stirred oil or 10 seconds in still air for a

63% step change in increasing or decreasing

temperature

Download

Descriptions English
Basic Hygrometry Principles acrobat-reader
M Series Aluminium Oxide Moisture Probe acrobat-reader
Moisture Image Series 1 Programming Manual acrobat-reader
Moisture Image Series 1 Quick Reference Guide acrobat-reader
Moisture Image Series 1 Service Manual acrobat-reader
Moisture Image Series 1 Startup Guide acrobat-reader
Mositure/Humidity Conversion acrobat-reader
Trace Moisture Diurnal Effects in Process Applications acrobat-reader
Vapor Water Pressure acrobat-reader


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