COMET SYSTEM, s.r.o.
Bezrucova 2901
756 61  Roznov pod Radhostem
CZECH REPUBLIC
Tel.: +420 571 653 990

E-mail: info@cometsystem.com


 

Monitoring
Systems
Multiloggers Transmitters
And Regulators
Data
Loggers
Temperature
Recorder with Printer
Portable
Instruments
Temperature
Probes

Thermo-hygrometer with external probe

code: S3121
Data logger is designed for record of temperature and humidity. Values are stored to a non volatile electronic memory. Data transfer to the personal computer for further analysis is performed via USB, RS232, GSM.

Logger Downloader - free application for data download from Android smartphones and tablet PCThe device includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

For communication with the PC must be from Optional accessories ordered USB adapter, COM adapter or start/stop magnet if is needed to control logging the other way than directly from computer.

The device is supplied with T+RH probe with 1m cable. Cable lengths 2m or 4m available optionally.


Send request
   

Features

GSM communicationMain applications of data logger:

  • Food and beverage industry (HACCP)
  • Pharmaceutical industry
  • Horticulture and cultivation of plants
  • HVAC (heating, ventilation, air conditioning, cooling)
  • Building and energy management
  • Research and development
  • Laboratories (GLP)
  • Warehouses
  • Technological processes
  • Museums, archives, galleries

 

Advantages of data logger:

  • included traceable calibration certificate from the manufacturer - Comet
  • fast data transfer to the PC (full memory for approximately 30s)
  • variability of connection to the computer - USB, RS232, GSM modem
  • permanent connection to the PC enabled, data is possible to download even during logging
  • large data memory 32000 values
  • large dual line display with special symbols, switchable
  • optional display of minimum and maximum measured values (reset of min/max memory from PC or by magnet)
  • dual level alarm is enabled for each channel, alarm is indicated by blinking of the value on the LCD display
  • two alarm modes are enabled: instant or with memory (detected alarm is indicated permanently till alarm memory is cleared from the PC)
  • robust watertight case
  • easy installation, locking enabled
  • low power consumption from battery, battery life up to 6 years
  • indication of remaining battery life, easy replacement of the battery
  • logging start/stop is enabled in several ways: at certain time and date programmed from computer, by delivered magnet
  • also special logging mode is enabled, when logging runs only, if some of measured values are out of adjusted alarm limits
  • each data logger is possible to describe with text of maximum 32 characters
  • each channel is possible to describe with text of maximum 16 characters
  • password protection is enabled to prevent unauthorized manipulation with logger

 

Included in delivery:

  • Data logger including the battery
  • Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
  • Quick start manual
  • Free basic Windows software is ready to download at folder Download

 

  

relative humidity range

Figure: Relative humidity operating range

 

Accuracy of dew point measurement

Figure: Accuracy of dew-point measurement

Technical Data

Technical parameters Value
Measured Value Temperature + Relative Humidity
Construction Type With T+RH Probe on Cable
Temperature Measuring Range -30 to 105 °C
Two-State Input No
Lcd Display Yes
Built-In Printer No
Operating temperature range -30 to +70°C
Measuring range of the probe temperature -30 to +105°C, humidity 0 to 100%RH
Accuracy of temperature measurement ±0.4°C from -30 to +80°C, ±0.5°C, over +80°C
Accuracy of humidity measurement ±2.5% RH from 5 to 95% at 23°C
Accuracy of dew point measurement - see details in graph 1.5 °C at ambient T < 25°C and RH>30% range -60 to +70 °C
Resolution of the reading 0.1°C, 0.1%RH
Real time clock year, leap year, month, day, hour, minute, second
Data logging interval adjustable from 10s to 24h (1minute to 24h in low-power mode)
Display and alarm refresh each 10 s (each 1 minute in low-power mode)
Total memory capacity 32000 temperature, humidity values in noncyclic logging mode
Data logging modes noncyclic - data logging stops after filling the memory
cyclic - after filling memory oldest data is overwritten by new
Dimensions without probe 93x64x29mm
Power Lithium battery 3,6V, size AA
Typical battery life in low-power mode (1 minute sampling) 6 years
Typical battery life in fast mode (10 second sampling) 2.5 years
Battery life in continuous on-line mode with interval 1 minute reduced to 70% of the above lives in fast mode
Battery life in continuous on-line mode with interval 10 second 1 year
IP protection IP67 - protected against influence of temporary immersion into water, RH+T sensors are covered with a stainless steel mesh with IP40 protection. Filtering ability 0,025mm
Weight including battery without probe 115g
Warranty 3 years
COMET Vision - Software for Dataloggers and Multiloggers COMET Vision - Software for Dataloggers and Multiloggers
code: CV
COMET Vision - Software for COMET Dataloggers Sxxxx, Rxxxx, Commeters Dxxxx and Multiloggers Mxxxx.
Comet Database Comet Database
code: CDB
System for collecting, alarming and analysing of measured data from all COMET devices.
COMETEO Multi-Plate Radiation Shield for Sensors, Naturally Ventilated COMETEO Multi-Plate Radiation Shield for Sensors, Naturally Ventilated
code: F8100
Newly developed meteorological screen for humidity and temperature transmitters.

Professional passive solar radiation and weather shelter for meteo sensors.

COMETEO Fan Aspirated Radiation Shield for Weather Sensors COMETEO Fan Aspirated Radiation Shield for Weather Sensors
code: F8200
Newly developed motorized meteorological screen for humidity and temperature transmitters.

Professional active solar radiation and weather shelter for meteo sensors.

S3121P Thermo-hygrometer for compressed air measurement S3121P Thermo-hygrometer for compressed air measurement
code: S3121P
Data logger is designed for record of temperature and humidity. Values are stored to a non volatile electronic memory. Data transfer to the personal computer for further analysis is performed via USB, RS232, GSM.
Thermometer hygrometer data logger Thermometer hygrometer data logger
code: S3120
Data logger is designed for record of temperature and humidity. Values are stored to a non volatile electronic memory. Data transfer to the personal computer for further analysis is performed via USB, RS232, GSM.
D3121 Thermo-hygrometer D3121 Thermo-hygrometer
code: D3121
Thermometer, hygrometer is designed for measurement and datalogging of temperature, relative humidity into the internal non-volatile memory.