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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 |
