Sentry RS232/4-20mA PCB

The SentryRS232 PCB provides a reliable, low cost solution for a wide range of wireless monitoring and alarm applications.

A wireless receiver, the PCB has serial, digital and 4 to 20mA outputs. It may be programmed to perform actions using the digital outputs (relays) upon certain conditions in the received data. Already successfully integrated into client applications, the SentryRS232 offers a costeffective solution for: fuel distributors, fuel storage, data logging and instrumentation, sensor and
meter companies etc.

Through our in-house application engineering and web hosting services, we can develop custom telemetry and data management solutions.

Features

BNC for antenna
Serial interface
Relay (digital) outputs
4-20mA output
Programmable sample frequencies
Microprocessor controlled
Screw terminals

RF Sensors (typical)

LPG tank
Ultrasonic (oil, water etc.)
Pulse counter / tamper
4 to 20 mA
VISY magneto restrictive

Specifications

Radio: 434, 868, 916 MHz frequencies
12 to 24 volts DC
200mA

Certification

R&TTE Directive 1999/5/EC
Low Voltage Directive EN60950

CE approved

WEEE compliant

Definable Parameters

Sample rate
Alarm trigger points
Relay actions
Hysterisis

FAQ

What is the maximum range?
Unobstructed line of sight is up to 1000 meters. In practice this will be reduced by walls and trees etc.
How is it mounted?
There are 4 M3 pillars for mounting
Where is the antenna?
The PCB has a BNC connector to allow a wide variety of aerials to be used. The application influences the choice.
Is it easy to use and configure?
Yes, and it is usually shipped preconfigured