Four-channel temperature data logger Comet U7844M with GSM modem
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- Transport, storage and production of food and pharmaceuticals
- Food and brewing industry (HACCP)
- Pharmaceutical industry
- Transfusion stations and pharmacies
- Animal husbandry, plant breeding
- HVAC (heating, ventilation, air conditioning and refrigeration)
- Building energy management
- Research and development
- Laboratories (GLP)
- Process plants, warehouses
- Museums, galleries, archives, libraries
- TÜV SÜD certified - complies with EN 12830, Class 1 and EN 13486, Class 1 for food transport
| Measured quantity | Voltage / current signal |
| Power supply | Battery |
| Designation | Wall-mounted |
| Record of measured quantity | Yes |
| Producer | Comet System |
GSM datalogger Comet U7844M with GSM modem is designed for recording from four binary inputs or two binary inputs and two pulse counters. In case of exceeding the set limits, it allows sending alarm SMS and JSON messages via GPRS data connection. It is possible to set up regular sending of JSON messages to Comet Database, the sending interval is adjustable. Alarms are also indicated locally on the instrument by LED, LCD and acoustically.
Recording is made to a non-volatile electronic memory. Data can be transferred to a personal computer at any time via USB-C interface.
The device includes a calibration sheet with declared metrological continuity of the standards, which is based on the requirements of EN ISO/IEC 17025.
The delivery includes:
- U7844M
- USB-C cable
- Power adapter
- Instructions for use
- Manufacturer's calibration sheet
- Technical support in English on the discussion forum
- COMET Vision analysis software FREE
Datalogger features:
- manufacturer's calibration sheet included
- fast data transfer to PC via USB
- GSM modem
- permanent connection to the computer, data can be downloaded during recording
- large display with special characters, switchable
- optional display of minimum and maximum temperatures (zeroing of min/max temperatures from PC or magnet)
- easy mounting with locking option
- low power consumption, battery life up to 7 years, easy battery replacement
- indication of remaining battery life
- thermometer can be switched on/off: on-line from a connected PC, by the supplied magnet
- password protection against unauthorised intervention in the thermometer settings
- Included calibration sheet with declared metrological continuity of standards based on the requirements of EN ISO/IEC 17025.
- LiIon battery included
- Measuring probes not included
| TECHNICAL PARAMETERS | |
|---|---|
| Measuring range | Two-state signal / Pulses |
| Voltage input parameters | Connection voltage 0...30 Vdc |
| Voltage-free input parameters | Contact resistance when switched on: <10k? Contact resistance when open: >300k? |
| Total memory capacity | 500.000 values (in non-cyclical recording) |
| Recording type options | non-cyclic - when the memory is full, the recording stops cyclic - when full, the oldest values are replaced by new ones |
| Power supply | LiIon battery 5200mAh |
| Typical battery life | 7 years |
| Coverage | IP20 |
| Dimensions with antenna | 120 x 93 x 53mm |
| Weight including batteries | approx. 270g |
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