DewPro MMR101

DewPro MMR101
High-Temperature Moisture Transmitter

A high-temperature loop-powered moisture and temperature transmitter with two current loops for in-line measurement. Simple two-wore or four-wire connection and rugged, stable housing ensure trouble-free mounting indoors or outdoors

Features:

Operating temperature up to 150°C (302°F)
0 to 100% relative humidity
Dew point 0°C to 150°C (32°F to 302°F)
4 to 20 mA loop powered
Second isolated 4 to 20 mA loop for temperature measurement (patented)
1/2” MNPT or other process connections
Capacitive polymer sensor
Platinum RTD temperature sensor
Microprocessor electronics in NEMA 4X enclosure (IP66)
IS or x-proof FM approved

Options:

Integral Display with user interface
English or Metric fittings
External display available with loop-powered supply and alarm
DewPro Communication Software contacts

原廠目錄下載 (PDF Format, 1 pages, 114 KB.)
DewPro MMR101 High-Temperature Humidity Transmitter

SPECIFICATIONS

Sensing Element: Polymer; capacitance

RH Range: 0 to 100%

RH Accuracy: ± 2%

RH Resolution: ± 0.02%

RH Repeatability: ± 1%

Temperature Sensor: Platinum RTD

Process Temperature Range: 0°C to +150°C (+32°F to +302°F)

Temperature Accuracy: ± 1.1°C (± 2°F)

Temperature Resolution: 0.05°C (0.09°F)

Operating Temperature Range: Electronics, -40°C to +85°C (-40°F to 185°F)

Maximum Operating Pressure: 150 psi (10.2 bar)

Electronics: Microprocessor controlled, loop-powered

EMI/RFI Protection: Meets IEC 801-1 through 801-6

Loop Power Supply: 24 V DC nominal, 12 to 32 V DC 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, 0(C to 100(C or 32(F to 212(F dew point (up to 320°F or 150°C under system pressure), 1 to 1000 g/m³ absolute humidity, and 0 to 1000 g/kg mixing ratio dry air

Standard Temperature Output: 0°C to 150°C (32°F to 302°F) range

Display: 4-digit numeric display with bar graph and matrix position indication. Four user interface keys for unit selections, output adjustments and ranging

Protection: NEMA 4X (IP66) or X-proof

Probe Tube: 316 SS, 0.5” diameter. Adjustable insertion length from 3” (76.33 mm) to 14.25” (362 mm)

Typical Mounting Adapter: 1/2” tube x 1/2” MNPT compression fitting; flanges and other sizes available upon request

Sensor Guard: 40 micron sintered filter, 316 SS cap

Weight: 4.4 lbs (2 kg)

Ordering Information MMR101
1 2 3 4 5

1 Approvals
A FM approved intrinsically safe, Class I, II, III, Div. 1, Grps. A-G
B FM approved explosion proof, Class I, Div. 1, Grps. A-D; dust-ignition proof Class I, II, Div. 1, Grps. E-G
C FM approved non incendive Class I, Div. 2, Grps. A-D; dust-ignition proof Class II, II, Div. 2, Grps. E-G
R Standard, no approvals
Y Other

2 Process Connection
3 1/2” MNPT, male thread
6 No mounting hardware
8 G 1/2 male thread compression fitting
9 Other

3 Current Output Units
C 4 to 20 mA = °C dew point (0° to 150°)
D 4 to 20 mA = g/m³ (0 to 100)
F 4 to 20 mA = °F dew point (32° to 302°)
R 4 to 20 mA = % humidity (0 to 100%)
X 4 to 20 mA = g/kg (0 to 100)
Y Other

4 Built-in Display
1 With display and user interface
2 Without display, 22 mA fault signal
3 Without display, fault signal, hold last signal
4 Without display, 3.6 mA fault signal
1 Other

Note: Intrinsically safe units require an IS power supply or intrinsically safe barriers.