Can be used in a variety of applications
Overview
The 109 is a rugged, accurate probe that measures air, soil, and water temperature for a variety of applications. It consists of a thermistor encapsulated in an epoxy-filled aluminum housing. The housing protects the thermistor, allowing the 109 to be buried or submerged. The 109 measures from -50° to +70°C.
Read MoreBenefits and Features
- Versatile product—measures air, soil, or water temperature
- Wide temperature measurement range
- Compatible with most Campbell Scientific data loggers
- Easy to install or remove
- Durable
Images
Technical Description
Air Temperature
When exposed to sunlight, the 109 should be housed in a 41303-5A, 41303-5B, or RAD06 6-plate radiation shield. The louvered construction of these radiation shields allows air to pass freely through the shield, thereby keeping the sensor at or near ambient temperature. The shields’ white color reflects solar radiation
The RAD06 uses a double-louvered design that offers improved sensor protection from driving rain, snow, and insect intrusion, and it has lower self-heating in bright sunlight combined with higher temperatures (> 24°C [~75°F]) and low wind speeds (< 2 m s-1 [~4.5 mph]), giving a better measurement.
The 41303-5A and RAD06 attach to a crossarm, mast, or user-supplied pipe with a 2.5 to 5.3 cm (1.0 in to 2.1 in) outer diameter.
The 41303-5B attaches to a CM500-series pole or a user-supplied pole with a 5.1 cm (2.4 in) outer diameter.
Water Temperature
The sensor can be submerged to 15 m (50 ft) or 21 psi. The 109 is not weighted, and therefore the installer should either add a weighting system or secure the sensor to a fixed, submerged object, such as a piling.
Soil Temperature
The 109 is suitable for shallow burial only. Placement of the sensor’s cable inside a rugged conduit may be advisable for long cable runs—especially in locations subject to digging, mowing, traffic, use of power tools, or lightning strikes.
Compatibility
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Dataloggers
| Product | Compatible | Note |
|---|---|---|
| CR1000 (retired) | ||
| CR300 (retired) | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR6 | ||
| CR800 (retired) | ||
| CR800 (retired) | ||
| CR800 (retired) | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) | ||
| CR850 (retired) |
Additional Compatibility Information
Datalogger Considerations
The 109 was designed specifically for our CR200(X)-series and CR300-series dataloggers but is suitable for other compatible dataloggers.
Programming
All compatible CRBasic dataloggers contain the Therm109 instruction for measuring the 109 probe. Programming is more complicated for older Edlog dataloggers because they must use generic measurement instructions.
Installation Considerations
Air Temperature
When exposed to sunlight, the 109 should be housed in a 41303-5A, 41303-5B, or RAD06 6-plate radiation shield. The louvered construction of these radiation shields allows air to pass freely through the shield, thereby keeping the sensor at or near ambient temperature. The shields’ white color reflects solar radiation.
The RAD06 uses a double-louvered design that offers improved sensor protection from driving rain, snow, insect intrusion and has lower self-heating in bright sunlight combined with higher temperatures (> 24°C [~75°F]) and low wind speeds (< 2 m/s [~4.5 mph]), giving a better measurement.
The 41303-5A and RAD06 attach to a crossarm, mast, or user-supplied pipe with a 2.5 to 5.3 cm (1.0 in to 2.1 in.) outer diameter. The 41303-5B attaches to a CM500-series pole or a user-supplied pole with a 5.1 cm (2.4 in.) outer diameter.
Soil Temperature
The 109 is suitable for shallow burial only. Placement of the sensor’s cable inside a rugged conduit may be advisable for long cable runs—especially in locations subject to digging, mowing, traffic, use of power tools, or lightning strikes.
Water Temperature
The sensor can be submerged to 15 m (50 ft) or 21 psi. The 109 is not weighted; therefore, the installer should either add a weighting system or secure the sensor to a fixed, submerged object, such as a piling.
Specifications
| Output | Analog |
| Operating Temperature Range | -50° to +70°C |
| Sensor Description | Measurement Specialties™ 10K3A1iA Thermistor |
| Tolerance | ±0.2°C (over 0° to 70°C range) |
| Temperature Measurement Range | -50° to +70°C |
| Steinhart-Hart Equation Error | ≤ 0.03°C (-50° to +70°C) |
| Interchangeability Error | ±0.1°C (over 0° to 70°C range increasing to ±0.5°C at -50°C) |
| Time Constant in Air | 30 to 60 s (in a wind speed of 5 m s-1) |
| Maximum Submergence | 15 m (50 ft) |
| Maximum Cable Length | 305 m (1000 ft) |
| Probe Length | 10.4 cm (4.1 in.) |
| Probe Diameter | 0.76 cm (0.3 in.) |
| Weight | 136 g (5 oz) with 3.05-m (10-ft) cable |
Related Documents
Product Brochures
Manuals
Related FAQs
Number of FAQs related to 109-L: 30
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The latest version of PC200W can be downloaded free-of-charge from the Downloads section of the Support tab on the PC200W product page.
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A control port must first be configured for output in the datalogger program before it can be toggled on or off. Consequently, if a selected port doesn’t appear to change, the program may not have the port configured for output. (Refer to the operator’s manual for the datalogger for more information.)
The retired CR500 and CR510 have two control ports; however, only one of the ports, control port 1, can be configured for output. Therefore, control port 2 cannot be toggled on or off. It is included on the display so that its status can be monitored.
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The Delete Datalogger function does not modify the datalogger in any way. Rather, it removes the datalogger from the list of dataloggers that are set up for communication in PC200W.
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The Monitor Data tab allows the selection of fields from any table. Displayed values are updated at the specified Update Interval. These values can be from the Public and Status tables or from a data table that is declared in the program.
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Units cannot be displayed in the Monitor Data tab of PC200W. When data is collected using PC200W, the units, if known, are contained in the header of the data file. They can be displayed in View by selecting the View | Show Full Header menu item.
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After a multiplexer has been added in Short Cut (SCWin), all the sensors that can be added to the multiplexer are listed in the Available Sensors and Devices tree. Short Cut only allows two different sensors to be added to a multiplexer if they are both measured using the same type of measurement (that is, single-ended, differential, half bridge, 3-wire half bridge, etc.). After a sensor is added to the multiplexer, the Available Sensors and Devices tree lists only those sensors that require the same type of measurement as the first sensor added.
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There is no upgrade path from PC200W to LoggerNet. Only licensed copies of LoggerNet qualify for upgrade pricing to the current version.
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