Wireless RTD Transmitter/Receiver Set
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Wireless RTD (PT100) Transmitter/Receiver Set
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Model: DR-SN900-RTD
Features
Wireless Bridge Between RTD and Instrument
Models for RTD (PT100) Sensors
Receiver Models 0-5, 0-10V DC or 4-20mA Output
Up To 6 Miles Line-of-site Operation
Adds Wireless Capability to Any Existing System
12-24V DC Operation
Standard 35mm Din-rail Enclosures
Sold As Transmitter/Receiver Matched Set
License Free Point-to-point Radio Operation
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Applications
Temperature Measurement Signals,
Remote Sensor Monitoring & Control
Description
DR-SN900-RTD Series Wireless RTD (PT100) Transmitters feature a factory programmed transmitter /
receiver matched set. The transmitter sends resistive temperature sensor measurements (RTD)
to a base receiver up to 6 miles away using license free 900 MHz RF technology. The receiver base
provides analog voltage or current (4-20ma) output. Each Transmitter/Receiver set is factory coded
as a matched set and requires no field programming. Models can be solar powered.
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General Specifications
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Radio Frequency:
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900 MHz
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Regulatory:
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FCC Part 15 (No license required)
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Transmitter/Receiver Code Matching:
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Factory set
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Antenna Connection:
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RP-SMA
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Wiring Connection:
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Terminal Blocks
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Transmit/Receive Distance
(with included antennas):
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Indoor/Urban 1000ft, Line-of-site 3 Miles.
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Transmit/Receive Distance
(with optional antennas):
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Indoor/Urban 1600ft, Line-of-site 6 Miles
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Operating Temperature:
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-22 to 113 ºF (-30 to 45 ºC)
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Enclosure:
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Plastic, 35mm Din-rail Mounted
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Antennas:
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7dbi, Omni-directional (Included)
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Transmitter Specifications
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Input:
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Input Type: RTD 3-Wire (PT100) 100 ohm, a= 0.00385
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Measurement Range:
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See Model Table on Full Data Sheet
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A/D Resolution:
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10 Bits
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Measurement Accuracy:
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+/- 3.6°F (2 °C)
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Sensor Break Result:
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Upscale Output
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RF Power Output:
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100mW
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RF Data Rate:
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10 kbps
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RF Output Impedance:
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50 Ohm nominal
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Operating Power:
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12 - 24V DC @ 3W max
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Receiver Specifications
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Analog Output:
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0-5V, 0-10V or 4-20mA (by model)
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Receive Sensitivity:
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-100 dBm
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RF Input Impedance:
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50 Ohm nominal
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Operating Power:
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12 - 24V DC @ 3W max
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RF Signal Loss Result:
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Holds output at last reading.
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Regulatory Approvals
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Regulatory:
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FCC Part 15 (No license required)
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FCC(USA):
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MCQ-XBEEXSC
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IC (Canada):
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1846A-XBEEXSC
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Transmitter Operation
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The wireless RTD transmitter reads analog voltage output from a PT100
sensor and then sends the measured data over the air to a remote location.
The measured RTD signals are converted to digital packets and then transmitted via a
license free radio transmission to a waiting control receiver.
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Receiever Operation
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The wireless RTD receiver decodes any incoming radio packets and converts them into linear voltage
or current output signals for interfacing with PLCs, Controllers, Data Loggers or Process Measurement Instruments.
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Available Models
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See Full Data Sheet For Additional Specifications.
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Data Sheet
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Each Wireless RTD Transmitter/Receiver Set includes 7dBi Antennas, 9'Antenna Extension Cables, Antenna Mounting Brackets and User Manual.
Note: Continued product improvements make specifications subject to change without notice.
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This product is approved for use in North America.
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