The WISE 4-20 Telemetry RTU is designed to reliably and securely
replace cable in industrial applications. Each
WISE 4-20 remote accepts up to four 4-20 mA analogs,
eight discretes, 1 pulse counting or one
RS232/485 input. All I/O is replicated at the
WISE host - including analogs with full 16 bit
precision. The link between remote and host is
a two-way error-protected digital radio operating in
the licensed 150 MHz or 450
radio band (VHF or UHF).
WISE 4-20 Telemetry RTUs are shipped factory-configured and tested.
There is no field configuration necessary. Typical
installation involves simply mounting and powering
the units and connecting the antennas and I/O.
A convenient 'Test' button is provided on both
remote and host units to allow verification of
the radio and I/O.
The WISE 4-20 Telemetry RTU remote is located nearest the sensor(s)
and includes 4-20 mA and discrete or digital
serial interfaces, as well as the complete
radio, antenna, optional battery and solar power
sub-systems. A gated sensor power
supply sources 12 or (optional) 24 VDC. All is self-contained in the IP 65
cast aluminum enclosure, with four indicator
LED's, two water-tight I/O connectors and a Test
button - used to verify overall WISE system operation.
There is absolutely nothing to calibrate or configure.
Our engineers have created WISE 4-20 RTU I/O options that
support a broad range of legacy industrial
interfaces and protocols including Modbus.
This flexibility allows very extensive data acquisition
links and networks to be created from our product
For example, you can connect a WISE RTU Host directly
to RS-232, creating a wireless node
capable of polling a large number of WISE
Telemetry RTU remotes
using Modbus protocol. The system can be constructed
seamlessly using our I/O compatible license free
wireless I/O radios, combining
long range links with short range (area) coverage.
Each WISE Telemetry RTU remote acquires analogs and discretes
from the field, and can also be commanded to output
analogs and relay closures. Essentially, each
remote performs the role of a flawlessly integrated
radio + PLC - without the associated cost.
WISE Repeaters are used whenever either distance
or major obstructions cause the radio signals to
be weak. We offer several versions, including
one for each radio type. Data is processed through all Repeaters
in digital form so sensor reading accuracy is