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 | |
|---|---|
| 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.
| 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