SR2 Network Receiver

Instrument Specifications

Dimensions: 300 x 200 x 85 mmThe-IMC-Group-British-Made
Weight: 1.2KG
Power Supply: 110V AC or 240V AC. On-board 12V battery back-up supplying 2.3A/hr (UK only) For other power supplies please contact us.
Case Material: Powder coated mild steel

Control Outputs

Alarm Outputs:1 x nominal 12V, 2 x changeover relays (energised when no alarms exist)
MSBUS: 4 core signal cable

Radio Transmitter FunctionsSignal-strength-message

Frequency Options: A range of frequencies are available between 433-458MHz. Country specific regulations apply.
Radio Power: 10mW
Radio Range: 3km over open ground 
Battery Life: Up to 18 months

This product can be calibrated to your specifications, contact us for further details.
N.B Instrument operating range -20°C to +65°C in a non-condensing RH environment

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Software Required:
W900 – Standard Software Package
W906 – Validated Software Package

Hardware required:
REP – Repeater
RL4000RHT – Humidity Transmitter Range
RL4000T – Temperature Transmitter Range
ML4000LUX/UV – Light/UV Transmitter Range

The Smart Receiver

The sr2 is the second generation of the Hanwell Pro Smart Receiver. It is a network enabled receiver, designed for collecting environmental monitoring data from multiple points within a site, or across multiple sites. In addition, it can be upgraded to a transceiver which both receives and re-transmits the data. It uses standard TCP/IP communications protocols for speedy data handling. The network traffic generated is very low and data is automatically sorted and filed. See the diagram overleaf for some potential ways of using the sr2, or contact Hanwell Solutions to discuss your site specific requirements.

In addition to receiving data from the ml2000 and ml4000 ranges of sensors, the unit can also read hard-wired sensors and, optionally, be fitted with up to eight onboard probes. Each sr2 can handle data from up to 253 sensors, and up to 16 sr2s can be run on a single system bringing it to a total of 4048 sensors.The sr2 supports Hanwell’s standard and extended transmission data formats.

The sr2 logs all received data in its on-board 512kb memory. The Radiolog software continually interrogates the sr2 for the most recent data, and downloads the data according to user-defined logging periods to the server or operating PC. Software users can view live and historic data, produce out of spec and summary reports and set alarms on both the data levels and the rate of change.

In addition to the data readings from the sensors, the sr2 can log the corresponding Received Radio Signal Indicators (RSSI) which reveal the strength of radio reception of each Sensor. As well as being logged, the RSSI is indicated on the front LCD along with other status information. An optional remote Receiver can be connected to improve radio reception in difficult areas.

The sr2 is designed to be in constant communication with the software but has user-configurable fallback behaviour in the event of network or power failure. An on-board battery provides a UPS with 2.3A/hour life to carry it through up to 12 hours’ power disruption (larger external UPSs are available as an optional extra).

Alarm relays are included: these can indicate that the readings are out of specification, and can be optionally set to indicate a network failure. A MS BUS connection allows the sr2 to drive the Hanwell Pro ms1000 environmental control system.sr2-receiver-schematic