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Specifi cations
Power
4.0-6.0VDC 100mA
Temperature
Operation
-10 to +70 C
Storage
-20 to +80C
Humidity
85% RH
Communication
Simplex/semiduplex
Modulation
Direct Sequence Spread Spectrum
Offset QPSK signal
Speed
Max. 250kbps
Range
800 meters line of sight
Transmit Output
Max 10mW
Com Freq. 2405 MHz to 2475 MHz (5MHz step,
15 channels)
Adjacent ch -25 dB
Occupied Freq width 5 MHz max
Receive Sensitivity -95 dBm or better
Spurious response 25 dB or better
Adjacent ch rej
20 dB or better
Carrier sense (RSSI) -77dBm +/- 5dB
Interface
8 pin terminal block 24-16AWG
Communication
Semiduplex RS485 Standard
Speed
2.4k/4.8k/9.6k/19.2k/38.4 k
/57.6k/115.2k kbps (9600 default)
Data length
1 to 256 bytes
Databit
8 bit, no parity, 1 start, 1 stop bit
LSB fi rst, no fl ow control
Wire cable length
30m max (using 16 AWG)
Indicating LED
Red, Green, Orange
Switches: Node
2 each 4bit (0-99)
Group ID 1 ea. 4 bit, 16 conditions
Channel
1 ea 4 bit, 15 ch (11-25)
Dimensions
55 X 75 X 20mm (with projections)
Weight
100g maximum
Model Number Key
WRT - R85 - 05D - C
OUTPUT:
-R85
SENSOR TYPE:
WRT Wireless Radio Transmitter
Sensors and Transducers
Other NK Technologies Products Include:
AC & DC Current Transducers
AC & DC Current Operated Switches
1φ & 3φPower Transducers
Current & Potential Transformers (CTs&PTs)
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: CustomerService@valin.com
HOUSING:
- C Common
POWER SUPPLY:
-05D 5VDC
RS485 - Modbus RTU
INSTRUCTIONS
WRT SERIES
Radio Transmitter/Receiver
Quick "How To" Guide
1. Set the node ID (0-99, same as slave device)
2. Use master receiver set to node 0
3. Set radio channel
4. Set power input switch to terminal
5. Set group ID if needed
6. Mount the transmitter
7. Connect power source
8. Connect RS485 cable to slave unit
9. Power up, confi rm data reception
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Related Manuals for NK TECHNOLOGIES WRT Series
Summary of Contents for NK TECHNOLOGIES WRT Series
- Page 1 1. Set the node ID (0-99, same as slave device) Channel 1 ea 4 bit, 15 ch (11-25) 2. Use master receiver set to node 0 Other NK Technologies Products Include: 3. Set radio channel Dimensions 55 X 75 X 20mm (with projections) AC &...
- Page 2 Description Confi guration The WRT is a Wireless data transmission device designed Use 5VDC external power supply, and to receive and transmit RS485 data packets. The product Back side of WRT bond the Modbus equipment ground is factory confi gured for Modbus RTU protocol. Each data to the same ground as power supply.
- Page 3 Network Connection Examples One Master, Multiple Slave Nodes, One Input per Node One Master, Multiple Slave Nodes, Multiple Inputs per Node Troubleshooting (cont’d) LED display of node There are 2 other Units or more in the same network group with the signal strength of better than -65dBm communicating with the Unit.