NOTE: This item is no longer for sale for new systems. Bentek will continue to support customers with existing SR900. Please go to our next generation replacement product, the RIO900.

SCADALink SR900 Sensor Radio: Wireless 4-20mA and Discrete Signal Transmitter/Receiver

The SCADALink SensorRadio SR900T/SR900R is a wireless Transmitter / Receiver System that allows license free transmission of a single 4-20mA signal and two discrete signals at up to 20+ miles. The SR900 are designed as wire replacements in applications where wiring is impractical or cost prohibitive.

Easy to Use

Sensor Radio’s come as a factory matched  set of TX/RX pairs.  No configuration is required.  SR900 feature 900 Mhz licensed free operation, no FCC/IC license required.

Secure Factory Set Codes

Secure factory set codes insure that that no other systems deployed will interfere with your system operation.   For customers that require a system with a single TX broadcasting to multiple RX can order additional receivers with matching secure codes.

Long Range

High Sensitivity and 1 Watt Transmitter Power at 900Mhz ensure long distance operation.

Fail-Safe Operation

Sensor Radio’s are designed with Fail Safe operation.  A Normal Open Link contact can be used  where the system is wired to, for fail safe operation.

Wireless I/O – Wire Replacement 

Wireless SensorRadio systems are an alternative to hardwired systems requiring conduit, cabling, and trenching.  Wireless systems are more immune to mechanical and water damage of hardwired systems.

Typical Application

The SensorRadio SR900 System is used in any industrial control where a small number of I/O needs to transmitted for:

• Alarms
• Measurement, Control, Shutdown
• ESD
• Gas Detection
• Tank Level
• Pressure
• Flow
• Temperature
• Density

Point to Point Single Directional Telemetry

Point to Multi-point Broadcast (Multiple Receivers)

Sensor Radio’s can also be used in systems with a single Transmitter transmitting to multiple Receivers keyed to the same Transmitter. This allows the input at the Transmitter to be replicated at all the Receivers. Typical applications are in Pump Control and Shutdown Systems.

Pump On/Off Control:

Shutdown Systems:

• License-Free 902-928 Mhz Frequency Hopping Spread Spectrum
• One 4-20mA Input
• 2 Discrete Inputs
• 1-Watt TX power
• Class 1 Div 2
• Din Rail Mounted

Datasheet 

SCADALink SR900

Manual

SENSOR RADIO SR900 Wireless 4-20 ma Transmitter Manual. V1.06

Application

SCADALink SR900 – Repeater Architecture

1. SR900
Item		Part No.	Description	Note
1A		SR900 Sensor Radio Pair (SCADALINK-RAD-SR900-SET)	Wireless Transmitter transmits a single 4-20mA signal and 2 Discrete signals to matching Sensor Radio Receiver at ranges up to 20+ Miles.
Master (Transmitter)
1B		SR900T SensorRadio Transmitter (SCADALINK-RAD-SR-TX)	Spare or Replacement Transmitter
Slave (Receiver)
1C		SR900R SensorRadio Receiver (SCADALINK-RAD-SR-RX)	Addition or Spare Receiver (must be keyed to Transmitter)

2. Omni Antenna Kit (Used with Master in Point to Multipoint Systems)
Item		Part No.	Description	Note
2A		Omni Antenna (ANT-OMNI)	Omni Antenna (N Female Connector) and Mounting Bracket
2B		Antenna Cable	35' LMR400 c/w N-Male Connector	A
2C		Antenna Lightning Arrester	6GHz, N-F Connector , Bi-directional protection
2D		Antenna Jumper	MCX to N-Male Jumper - 3'

3. YAGI Antenna Kit
Item		Part No.	Description	Note
3A		YAGI Antenna	6dB YAGI Antenna c/w N-Female connector
3B		Antenna Cable	35' LMR400 c/w N-Male Connector	A
3C		Antenna Lightning Arrester	6GHz, N-F Connector , Bi-directional protection
3D		Antenna Jumper	N-Male to MCX Male 3'

4. Antenna Options
Item		Part No.	Description	Note
4A		ANT-UHF	UHF, 902-928 MHz, 3dBi, N (F) Connector.
4B		ANT-CELL	Antenna Phantom, Omni, 4G/3G N(F), PMT, 698-960 MHz, 1700-2700 MHz, WHT.

5. Packaging Options
Item		Part No.	Description	Note
5A		AC Powered Package	AC Powered Package without battery backup.	B
5B		AC Powered Package with Battery Backup	AC Powered Packages with battery backup.	B
5C		Solar Powered Packages	Solar Powered Packages with NEMA4 Enclosures	B

Note

1. Standard Cable Length – Order Longer Lengths as Required
2. Packaged Systems Available – CSA Class I Div 2 or CSA General Certification

Connection Example

Wireless I/O: IO900

RIO900 Series

RIO100 Series

Accessories