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Laboratory equipment

Data Loggers Real Time Telemetry

Only available in Belgium

The Telemetry System

The telemetry system consists of seven components: DST ...RF-HRT telemetry data logger with a heart rate and temperature sensor, a RF box transreceiver module placed on each cage, an antenna placed on each cage, a Personal Area Network (PAN) controller which is the receiving module connected to a computer, Communication Box which serves as an interface between the logger and the PC, and Mercury and Gná application software. The DST microRF-HRT is based on our DST micro-HRT and gives the users the benefit of both continuous logging and telemetry. The logger can be programmed to record temperature as often as once per minute. It will store those data points in its memory and transmit the data to Gná, our online user software, as often as required by the researcher. The measurement data can be analysed in graphic and tabular form and exported to most statistical analysis programs. The software also provides the user with some basic statistic information on the data such as minimum and maximum values on defined area, median, average, distribution of values etc.

There can be up to 10 subjects in each cage. The RF box will receive the data from the DST microRF-HRT and transmit it to PAN. The software takes care of minimizing cross talk and even if that does happen all transmissions have the individual logger’s ID attached.
Each telemetry system needs to have a PAN to receive the data from the RF boxes. It is connected to the computer using a serial cable and a USB converter. How far the PAN can be placed away from the RF box varies greatly on the configuration of the lab but in most cases it will transmit about 20-30 meters.

Specifications

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DST logger specs DST NanoRF-T DST MicroRF-T DST MicroRF-HRT
Sensors Temperature Temperature Temperature
Size: Ø x lenght 6 x 17,5 mm 8,3 x 25,4 mm 8,3 x 25,4 mm
Weight 1,3 g 3,3 g 3,3 g
Battery Life 12 months* 21 months* 2,5 months*
Memory Type Non-volatile EE-PROM Non-volatile EE-PROM Non-volatile EE-PROM
Memory capacity 43476 measurements 43476 measurements 43690 measurements
Data resolution 12 bits 12 bits 12 bits
Min. measuring interval 1 min 1 min 1 min
Temperature range 5°C to 45°C 5°C to 45°C 5°C to 45°C
Temperature resolution 0,032°C 0,032°C 0,032°C
Temperature accuracy +/- 0,2°C +/- 0,2°C +/-0,2°C
HR sampling Frequency NA NA 100-800Hz
Telemetry RF Frequency 500 kHz 500 kHz 500 kHz
Transmissinon range to RF box. 20-30 cm 20-30 cm 20-30 cm

 

PAN, receiver

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Size 85 x 75 x 25 mm
Total number of RF boxes per PAN 64
Total number of loggers per PAN 640
PAN communication protocol MiWi
Channels 16, software determined
Power supply for PAN 12VDC
Software required Gná

 

RF box, Trensceiver

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Size 85 x 75 x 25 mm
Transmission range to PAN 20-30 meters ***
Transmission frequency 2,4  GHz
Battery Life up to 3 weeks, rechargable
Recharge Time 3-4 hours
Number of loggers per RF box 1-10
Antenna Placed under the cage***

 

* For a sampling interval of 10min
**Range may vary depending on laboratory configuration
***Antenna can be made in another shape for other placement

Ordering number

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180000095 DST microRF-T Temperature recorder
180000096 DST nanoRF-T Temperature recorder
180000097 DST microRF-HRT Heart rate and temperature recorder
  Telemetry Accesories
180000091 communication box
180000099 Antenna, 1 per cage needed
180000100 RF Box Data receiver 1 per cage needed
180000101 PAN receiving Module, on eper PC
180000102 Mercury & GNA Software