GE Sensing MMR101 Specifications
GE
Sensing
Features
DewPro
®
MMR101
High-Temperature Moisture
Transmitter
The DewPro MMR101 is a high-temperature
loop-powered moisture and temperature transmitter.
The transmitter is housed in a Type 4X/IP67 enclosure
and features a simple two-wire or four-wire connection.
The DewPro MMR101 uses a proven polymer capacitive
sensor to provide a humidity measurement range of
0 to 100% RH with an accuracy of ±2% up to 149°F
(65°C). A platinum RTD temperature sensor delivers
temperature measurements in the range of
32°F to 300°F (0°C to 150°C). The optional integrated
display with user interface provides full programming
and diagnostic capability. In addition, the transmitter is
FM approved instrinsically safe/explosion-proof for use in
Class I,II,III, Division 1 and 2, Groups A,B,C,D,E,F&G
hazardous (classified) locations.
With an operating temperature up to 300°F (150°C), the
DewPro MMR101 is ideally suited for the harshest
applications. The transmitter can report moisture
content in relative humidity, dew point temperature,
absolute humidity, and mixing ratio. Applications include
food processing, high temperature solids drying, paint
and coating/finishing processes, pharmaceutical
processing, and other industrial applications.
DewPro MMR101 is a General Eastern
product. General Eastern has joined
other GE high-technology sensing
businesses under a new name
_
GE Industrial, Sensing.
• Loop-powered, 4 to 20 mA transmitter
• Proven polymer capacitive sensor for fast response
and calibration stability
• Platinum RTD temperature sensor
• 1/2 in MNPT or other process connections
• Operating temperature up to 300°F (150°C)
• 0 to 100% relative humidity
• Dew point 32°F to 300°F (0°C to 150°C)
• Second isolated 4 to 20 mA loop for temperature
measurement (patented)
• Microcontroller electronics in Type 4X/IP67 enclosure
Options
• Integral display with user interface
• FM approved intrinsically safe/explosion-proof,
Class I,II,III, Division 1 and 2, Groups A,B,C,D,E,F&G
hazardous (classified) locations, or dust ignition proof
• English or metric fittings
• External display available with loop-powered supply
and alarm
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GE
Sensing
DewPro MMR101
Specifications
Sensing Element
Polymer; capacitance
RH Range
0 to 100%
RH Accuracy
±2% up to 150°F (65°C)
Temperature Sensor
Platinum RTD
Temperature Accuracy
±2°F (±1.1°C)
Operating Temperature Range
Process: 32°F to 300°F (0°C to 150°C)
Electronics: -40°F to 185°F (-40°C to 85°C)
Maximum Operating Pressure
150 psi (10.2 bar)
Electronics
Microcontroller operated, loop-powered
Loop Power Supply
24 VDC nominal, 12 to 30 VDC range
Outputs
Two fully isolated 4 to 20 mA current loops (moisture and
temperature) patented (U.S. patent #5,677,476)
Hardware Selectable Units
0% to 100% RH, -40°F to 212°F or -40°C to 100°C dew
point (up to 320°F or 150°C under system pressure),
0 to 1000 g/m3absolute humidity, and 0 to 1000 g/kg
mixing ratio dry air, wet buld temperature, volume %
Standard Temperature Output
32°F to 300°F (0°C to 150°C) range
Optional Display
Four-digit numeric display with bar graph and matrix
position indication. Four user interface keys for unit
selections, output adjustments and ranging.
Protection
Type 4X/IP67
Probe Tube
16 in (400 mm) 316 stainless steel, 0.5 in diameter.
Adjustable insertion length from 3 in (80 mm) to 14.25 in
(362 mm). 9 in (225 mm) also available.
Typical Mounting Adapter
1/2 in tube x 1/2 in NPT-M or G 1/2 compression fitting;
flanges and other sizes available upon request
Sensor Guard
40 micron sintered filter, 316 stainless steel cap
Weight
4.4 lb (2 kg)
European Compliance
Complies with EMC Directive 89/336/EEC and
PED 97/23/EC for DN< 25
Optional Certification/Approvals
• FM IS Class I,II,III, Division 1, Groups A,B,C,D,E,F&G, T4
• FM XP-IS Class I, Division 1, Groups A,B,C&D, T5
• FM NI Class I, Division 2, Groups A,B,C&D, T4A
DIP Class II,III, Division 1, Groups E,F&G, T4
• ATEX II 3G EEx nA IIC T4
.50 in
(12.7 mm)
5.44 in (138.0 mm)
3.11 in
(79.0 mm)
AF 1.62 in
Epoxy-coated
cast aluminum
housing that
meets
Type 4X/IP67
requirements
M20 or 1/2 in
NPT conduit or
cable gland
5.06 in
(188.5 mm)
16.24 in
(412.4 mm)
©2005 GE. All rights reserved.
920-061A
All specifications are subject to change for product improvement without notice.
DewPro®is a registered trademark of GE. GE®is a registered trademark of General
Electric Co.
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www.gesensing.com
DewPro MMR101 with optional display
Sintered end cap
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