Related Manuals for Campbell 108
Summary of Contents for Campbell 108
- Page 1 Model 108 Temperature Probe Revision: 2/18 C o p y r i g h t © 1 9 8 5 - 2 0 1 8 C a m p b e l l S c i e n t i f i c ,...
- Page 4 (780) 454-2655. Campbell Scientific (Canada) Corp. is unable to process any returns until we receive this form. If the form is not received within three days of product receipt or is incomplete, the product will be returned to the client at the client’s expense.
- Page 5 Periodically (at least yearly) check electrical ground connections. WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CLIENT ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.
- Page 6 PLEASE READ FIRST About this manual Please note that this manual was originally produced by Campbell Scientific Inc. (CSI) primarily for the US market. Some spellings, weights and measures may reflect this origin. Some useful conversion factors: Area: 1 in...
-
Page 8: Table Of Contents
Table of Contents PDF viewers: These page numbers refer to the printed version of this document. Use the PDF reader bookmarks tab for links to specific sections. 1. Introduction ..............1 2. Precautions ..............1 3. Initial Inspection ............1 4. - Page 9 7-1. Installing a 108 and 41303-5A Radiation Shield on a CM200-Series Crossarm ..............7 7-2. 108 and 41303-5A Radiation Shield on a tripod mast (left). 108 and RAD06 Radiation Shield on a CM200-Series Crossarm (right)....................7 8-1. 108 thermistor probe schematic............8 Tables 7-1.
-
Page 10: Introduction
Short Cut is an easy way to program your datalogger to measure the 108 probe and assign datalogger wiring terminals. Short Cut is available as a download on www.campbellsci.com. It is included in installations of LoggerNet, PC200W, PC400, or RTDAQ. - Page 11 Model 108 Temperature Probe In the search box under the Available Sensors and Devices heading, type in 108 or find the 108 in the Sensors | Temperature folder. Double-click the 108 Temperature Probe. Data defaults to degree Celsius. This can be changed by clicking the Deg C box and selecting Deg F, for degrees Fahrenheit, or K, for Kelvin.
-
Page 12: Overview
Overview The 108 is a rugged probe that accurately measures air, soil, or water temperature in a variety of applications. The sensor consists of a thermistor encapsulated in an epoxy-filled aluminum housing. This design allows the probe to be buried or submerged in water to 15 m (50 ft) or 21 psi. -
Page 13: Specifications
Model 108 Temperature Probe mount the 108 and limit solar radiation loading. See Section 6, Specifications , for a complete list of compatible dataloggers. (p. 4) Specifications Features Measures air, soil, or water temperature • Compatible with AM16/32-series multiplexers •... -
Page 14: Wiring To Datalogger
A complete program example can be found in Appendix B, Example Programs (p. B-1) If the 108 probe is to be used with long cable lengths or in electrically noisy environments, consider employing the measurement programming techniques outlined in Section 8.3, Electrically Noisy Environments , and Section 8.4,... -
Page 15: 7.2.1 Therm108() Instruction
7.2.1 Therm108() Instruction The Therm108() measurement instruction programs CRBasic dataloggers to measure the 108 probe. It applies a precise excitation voltage, makes a half- bridge resistance measurement, and converts the result to temperature using the Steinhart-Hart equation. See Section 8.2, Measurement and Output Linearization , for more information. - Page 16 FIGURE 7-2. 108 and 41303-5A Radiation Shield on a tripod mast (left). 108 and RAD06 Radiation Shield on a CM200-Series Crossarm (right). The 108 is held in the 41303-5A radiation shield by a mounting clamp at the bottom (FIGURE and FIGURE left).
-
Page 17: Water Temperature Installation
Secure the cable to the tripod or tower using cable ties. Water Temperature Installation 108 probes can be submerged to 15 m (50 ft) or 21 psi. The 108 is not weighted, so a weighting system should be added, or the probe secured to a submerged object such as a piling. -
Page 18: Electrically Noisy Environments
Model 108 Temperature Probe FIGURE 8-1, 108 thermistor probe schematic, Therm108() applies 1000 mV excitation at the Vx line and measures the voltage drop across the 1 kΩ resistor at the Vs line. The ratio of measured voltage (Vs) to excitation voltage (Vx) is related to thermistor resistance (Rs), and the 1 kΩ... -
Page 19: Troubleshooting And Maintenance
Maintenance The 108 probe requires minimal maintenance. For air temperature measurements, check the radiation shield monthly to make sure it is free from dust and debris. To clean the shield, first remove the sensor. Dismount the shield. -
Page 20: Calibration
If needed, an estimate of the interchangeability error for 0 to 50 °C, that can be used as the Offset parameter of the Therm107() instruction, can be determined with a 1-point or 2-point calibration. Calibration of the 108 probe is not necessary unless the accuracy needed in the sensor data requires correction of the thermistor interchangeability offset described in Section 6, Specifications (p. - Page 21 Model 108 Temperature Probe...
-
Page 22: Importing Short Cut Code Into Crbasic Editor
Appendix A. Importing Short Cut Code Into CRBasic Editor This tutorial shows: How to import a Short Cut program into a program editor for • additional refinement How to import a wiring diagram from Short Cut into the comments of •... -
Page 24: Example Programs
This following example can be used directly with CR300-series, CR800-series, CR1000, CR1000X-series, CR3000, and CR5000 dataloggers. CRBasic Example B-1. 108 Program Example for CR300-Series, CR800-Series, CR1000, CR1000X-Series, CR3000, and CR5000 Dataloggers 'Program measures one 108 temperature probe once a second and 'stores the average temperature every 60 minutes. - Page 25 Appendix B. Example Programs The following example can be used directly with CR6-series dataloggers. CRBasic Example B-2. 108 Program Example for CR6-Series Dataloggers 'Program measures one 108 temperature probe once a second and 'stores the average temperature every 60 minutes. 'Wiring Diagram...
-
Page 26: Thermistor Resistance And Temperature
Appendix C. Thermistor Resistance and Temperature TABLE C-1. 108 Thermistor Resistance and Temperature 100K6A1iA CRBasic Actual Thermistor Therm108() Temperature (°C) Resistance (Ω) Output (°C) 612407 -10.00 578366 -9.00 546408 -8.00 516394 -7.00 488196 -6.00 461695 -5.00 436779 -4.00 413346 -3.00 391300 -2.00... - Page 27 Appendix C. Thermistor Resistance and Temperature 66367 34.00 63491 35.00 60755 36.00 58150 37.00 55670 38.00 53309 39.00 51060 40.00 48917 41.00 46875 42.00 44929 43.00 43073 44.00 41303 45.00 39615 46.00 38005 47.00 36467 48.00 35000 49.00 33599 50.00 32262 51.00 30984...
- Page 28 Appendix C. Thermistor Resistance and Temperature 7708 90.00 7457 91.00 7215 92.00 6982 93.00 6758 94.00 6541 95.00 6333 96.00 6132 97.00 5939 98.00 5753 99.00 5573 100.00 Data from Measurement Specialties...
- Page 29 Appendix C. Thermistor Resistance and Temperature...
- Page 31 Santo Domingo, Heredia 40305 SOUTH AFRICA COSTA RICA • cleroux@csafrica.co.za • info@campbellsci.cc www.campbellsci.co.za www.campbellsci.cc Campbell Scientific Southeast Asia Co., Ltd. Campbell Scientific Ltd. 877/22 Nirvana@Work, Rama 9 Road Campbell Park Suan Luang Subdistrict, Suan Luang District 80 Hathern Road Bangkok 10250...
Need help?
Do you have a question about the 108 and is the answer not in the manual?
Questions and answers