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
Applications 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

M Series
Specifications
Moisture Probe
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 �?10°C)
by request
• Standard calibration range: 68°F to -112°F
(20°C to �?0°C) with data to -166°F (-110°C)
• Ultralow calibration range: -58°F to -148°F
(-50°C to �?00°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 �?5°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 �?5°C)
• ±1.8°F (±1.0°C) in range of -86°F to -166°F
(�?6°C to �?10°C)
Temperature
• Operating: -166°F to 158°F (�?10°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
�?2°F to 158°F (�?0°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