Humidity and temperature data loggers
Hygrometer S3120 with USB adapter and magnet
Main applications of hygrometer:
- 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 hygrometer:
- 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, Ethernet, 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 or LED diode
- 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 7 years
- indication of remaining battery life, easy replacement of the battery
- it is possible to combine temperature and humidity measurement with two user calibrated 0-5V voltage signals
- 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
| COMMON TECHNICAL PARAMETERS OF HYGROMETER | |
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| Operating temperature range of data logger R3120, R3121 without display: | -30 to +80°C |
| Operating temperature range of data logger S3xxx with display: | -30 to +70°C |
| Accuracy of temperature measurement of internal sensor: | ±0.4°C |
| Accuracy of the S3631 data logger Pt1000 input without probe: |
±0.2°C from -50 do +100°C ±0.2% from reading from +100 to +260°C ±0.4% from reading from -90 to -50°C |
| Accuracy of air humidity measurement: | ±2.5% RH from 5 to 95% at 23°C |
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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 models S3120, S3631, S3541 range -60 to +80 °C models S3121, R3120, R3121 |
| 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 connectors: |
data logger with display 93x64x29mm data logger without display 93x64x26mm |
| Power: | Lithium battery 3,6V, size AA |
| Typical battery life in low-power mode (1minute sampling): |
7 years R3120, R3121 6 years S3120, S3121, S3631, S3541 |
| Typical battery life in fast mode (10 second sampling): |
3 years R3120, R3121 2.5 years S3120, S3121, S3631, S3541 |
| 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 |
| Protection of loggers with internal sensors: | IP67 - protected against influence of temporary immersion into water, RH+T sensors are covered with a plastic cover with IP30 protection |
| Protection of S3121, R3121 loggers with cable probe: | 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 |
| Warranty: | 2 years |
| DATA LOGGER WITH LCD DISPLAY | ||||
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| Hygrometer model | Measured signals | Measuring range | Manual in pdf format | |
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S3120 - thermometer-hygrometer including dew point temperature. With internal T+RH sensors | T+RH |
temperature -30 to +70°C humidity 0 to 100% |
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S3121 - thermometer-hygrometer including dew point temperature. With external T+RH probe with cable length of 1 meter. Cable lengths 2 and 4 meters available optionally. Probe diameter is 18mm, length 90mm. | T+RH |
temperature -30 to +105°C* humidity 0 to 100% |
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S3121P - thermometer-hygrometer including dew point temperature. With external
probe from hard anodized duralumin with 1m cable. Cable lengths 2 and 4 meters available
optionally. For compressed air up to 25 bars. |
T+RH |
temperature -30 to +105°C* humidity 0 to 100% |
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S3631 - thermometer-hygrometer with internal T+RH sensors. Additional connector for external temperature probe. Alternative display of dew-point temperature, external probe temperature and the temperature difference of external probe and dew-point temperature. Necessary to order external temperature probe with Pt1000 sensor with female K1321 connector. | T+RH +Text |
internal -30 to +70°C external -90 to +260°C humidity 0 to 100% Alarm on LCD indicating temperature difference of external probe and dew-point, e.g. for monitoring of condensation or mould creation. |
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S3541 - thermometer-hygrometer including dew-point calculation with internal T+RH sensors. Additional Canon 9pins connector for two signals 0-5Vdc (±0.2% FS accuracy). Necessary to order connector for connection of input signals. | T+RH + 2x0-5V |
internal -30 to +70°C humidity 0 to 100% |
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| DATA LOGGER WITHOUT LCD DISPLAY | ||||
|---|---|---|---|---|
| Hygrometer model | Measured signals | Measuring range | Manual in pdf format | |
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R3120 - thermometer-hygrometer including dew point temperature. With internal T+RH sensors | T+RH |
temperature -30 to +80°C humidity 0 to 100% |
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R3121 - thermometer-hygrometer including dew point temperature. With external T+RH probe with cable length of 1 meter. Cable lengths 2 and 4 meters available optionally. Probe diameter is 18mm, length 90mm. | T+RH |
temperature -30 to +105°C* humidity 0 to 100% |
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Common manual for quick start of all Sxxxx, Rxxxx data loggers
Temperature operating range of hygrometer S3121, R3121
Figure: Humidity probe for S3121P for compressed air up to 25 bars
- hard anodized duralumin, stainless steel mesh filter moulded in polycarbonate
Figure: Flow chamber SH-PP for compressed air measurement up to 25 bars - stainless steel
Data logger accessories
Included is traceable calibration certificate from the manufacturer, instruction manual.
Calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.
Example of calibration certificate.
For basic use it is necessary to order at minimum a COM adapter or USB adapter for
communication with computer, optionally a start/stop magnet, if needed to control data logging
the other way than directly from computer.
Anytime it is possible to download free basic Windows program for hygrometer . Program enables to control all data logger functions and viewing and printing of record in numerical and simple graphic format. It is possible to export humidity and temperature values to dbf or txt formats for further analysis.
| OPTIONAL ACCESSORIES | ||
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SWR004 | Windows optional software for hygrometer - color printing, vertical and horizontal zooming of graphs and other functions. |
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DBL |
Database program DBL Logger Program for work with data from Comet loggers. Program enables i.a.: - To set locally the GSM modem via RS232 link by means of the QMS2901 cable. - To view selected channels from any Comet logger together with selected channels of other Comet loggers. - Measurement from different Comet devices is possible to combine in one table or graph. - To choose any time interval for analysis. - Print, export to PDF - table and graph. - Uses freeware database server MySQL |
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SW100 | CD with free PC program for data logger |
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LP002 | COM adapter for hygrometer communication with personal computer via RS232 serial port |
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LP003 | USB adapter for hygrometer communication with personal computer via USB port |
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LP005 |
LAN adapter - external converter for hygrometer communication with the PC via Ethernet, including ac/dc adapter 100 to 240Vac/5Vdc. Exceeding of adjusted limits is alarmed by sending e-mail message or trap. More information in manual in pdf format
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New ! Wireless communication with loggers via GSM |
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LP004 | start/stop magnet for data logger |
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MD036 | self adhesive Dual Lock for easy installation of hygrometer |
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F9000 | wall holder secured against unauthorized removal of hygrometer |
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A4203 | spare Lithium battery 3.6V size AA |
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K1321 | spare female connector for connection of S3631 data logger temperature probe, protection IP67 |
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K0921 | watertight female connector Canon 9 pins for connection of 0-5V signals of S3541 data logger, protection IP67. |
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K0925 | female connector Canon 9 pins for connection of 0-5V signals of S3541 data logger, protection IP20. |
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K0945 | adapter with terminals for easy connection of 0-5V signals of S3541, protection IP20. |
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F5200 | grey sensor cover with filter from stainless steel mesh, filtering ability 0,025mm for S3xxx, R3120 loggers |
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F5200B | black sensor cover with filter from stainless steel mesh, filtering ability 0,025mm for S3121, R3121 loggers |
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F0000 | sensor cover from sintered bronze - filtering ability of 0.025mm |
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PP4 | flat circular flange - for mounting of external probe of hygrometer S3121, R3121 |
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PP90 | right-angled stain-less steel flange for mounting of external probe of hygrometer S3121, R3121 |
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F8000 | Solar radation shield for S3121, R3121 |
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SH-PP |
Flow chamber for compressed air measurement up to 25 bars - stainless steel DIN 1.4301
inlet and outlet connection - G1/8 thread humidity probe connection - G1/2 thread screw-coupling not included |
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accessory for hygrometer calibration and adjustment by the user | |
Declaration of Conformity for all Sxxxx, Rxxxx data loggers in pdf