Wireless 4-20mA Transmitter/Receiver
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Din-rail Wireless 4-20mA Transmitter/Receiver Set
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Model: DRWS-420
Features
    Wireless Bridge Between 4-20mA Sensor & Instrument
    Sold As Transmitter/Receiver Factory Match Set
    Up To 1 Mile Line-of-site Transmit/Receive Distance
    Adds Wireless Capability To Any Existing System
    Easy To Install Din-rail Style Enclosures
    Can Be 12-24VDC Battery or Solar Powered
    License Free Point-to-point Radio Operation
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Applications
Tank Level Monitoring,
Process Controls & Instrumentation,
Add Wireless Capability To Existing Application
Description
Model DRWS-420 Wireless 4-20mA Transmitter/Receiver Set provides a wireless bridge between any 4-20mA loop powered sensor and a 4-20mA input process monitoring or control Instrument. The 4-20mA analog current readings from a sensor connected to the transmitting unit are sent via a license free radio signal to a receiver unit up to 1 mile (Line-of-site) away. The receiving unit reproduces an accurate 4-20mA analog output that matches the 4-20mA signal.
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SAMPLE APPLICATION SHOWNING LEVEL SENSOR SENDING WIRELESS 4-20MA READINGS TO REMOTE PLC DEVICE
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General Specifications
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Radio Frequency:
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2.4GHz
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RF Output Impedance:
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50 Ohm nominal
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Transmitter/Receiver Code Matching:
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Factory set
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Operating Power:
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24Vdc @ 250mA
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Wiring Connection:
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Terminal Blocks
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Transmit/Receive Distance (-USCA Model):
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Up to 400' Line-of-sight (With Included 3dbi Antennas)
Up to 1700' Line-of-sight (With Optional 7dbi Antennas)
Up to 1/2 Mile Line-of-sight (With Optional 12dbi Antennas)
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Transmit/Receive Distance (-EU Model):
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Up to 100' Line-of-sight (With Included 3dbi Antennas)
Up to 200' Line-of-sight (With Optional 7dbi Antennas)
Up to 300' Line-of-sight (With Optional 12dbi Antennas)
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Operating Temperature:
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-10 to 130 ºF (-23 to 54 ºC)
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Enclosure:
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Plastic (Indoor or protected use only)
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Antennas:
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Includes 3dBi Antennas & 9' Extention Cables
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Transmitter Specifications
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Input Signal:
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Analog Current 4-20mA
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RF Power Output:
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63mW (10mW -EU Models)
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RF Data Rate:
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250 Kbps
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Transmitt Rate (Factory Set):
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Every 1 Second
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Receiver Specifications
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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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Regulatory Approvals
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Regulatory:
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FCC Part 95 (No license required)
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FCC(USA):
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OUR-XBEEPRO
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IC (Canada):
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4214A-XBEEPRO
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Available Models
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Model Number
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Description
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DRWS-420-USCA
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Wireless 4-20mA Transmitter/Reciever Set - USA & Canada
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DRWS-420-EU
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Wireless 4-20mA Transmitter/Reciever Set - EU
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Optional Antennas
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Model Number
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Description
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AT24-7DBI-OD-RP-SMA*
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7dBi Medium Range Antenna
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AT24-9DBI-YD-RP-SMA*
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9dBi Long Range Antenna
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*Optional Antenna. Order 2 each when these antennas are needed.
Each Wireless 4-20mA Transmitter/Receiver Set includes 3dBi Antennas, 9'Antenna Extension Cables, Antenna Mounting Brackets and User Manuals.
Note: Continued product improvements make specifications subject to change without notice.
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This product is approved for use in USA, Canada and Europe only.
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