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Summary of Contents for Campbell CR10XTCR
- Page 1 CR10XTCR Thermocouple Reference Revision: 1/03 C o p y r i g h t ( c ) 1 9 9 5 - 2 0 0 3 C a m p b e l l S c i e n t i f i c , I n c .
- Page 2 Warranty and Assistance The CR10XTCR THERMOCOUPLE REFERENCE is warranted by CAMPBELL SCIENTIFIC, INC. to be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. CAMPBELL SCIENTIFIC, INC.'s obligation under this warranty is limited to repairing or...
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Page 3: Table Of Contents
CR10XTCR Table of Contents PDF viewers note: These page numbers refer to the printed version of this document. Use the Adobe Acrobat® bookmarks tab for links to specific sections. 1. General ................1 1.1 Specifications....................1 2. Accuracy — Temperature Sensor ......1 3. - Page 4 This is a blank page.
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Page 5: General
CR10XTCR Thermocouple Reference 1. General The Model CR10XTCR Probe contains a thermistor for measuring temperature and is used as a reference temperature for thermocouples measured with the CR10X. It is installed between the two terminal stripes in the wiring panel. After all the thermocouples are wired, the wiring panel cover is installed to minimize temperature gradients on the terminal strip. -
Page 6: Installation And Wiring
CR10XTCR Thermocouple Reference FIGURE 1. Error Produced by Polynomial Fit to Published Values 3. Installation and Wiring The wiring diagram for the CR10XTCR is shown in Figure 1. The probe requires a single-ended analog input channel and an excitation channel. After the CR10XTCR and thermocouple are connected to the datalogger, install the wiring panel cover (Figure 2 and 3). -
Page 7: Programming
CR10XTCR Thermocouple Reference FIGURE 3. Wiring Panel, CR10XTCR, and Wiring Panel Cover Clear Clear Logan, Utah SW 12 11 12 DIFF G G H AG H AG H AG E3 AG G G 5V 5V G Black Black DIFF G G H AG H AG H AG E1 AG E2 G... -
Page 8: Instruction 11 Details
5. Instruction 11 Details Understanding the details in this section are not necessary for general operation of the CR10XTCR with Campbell Scientific's dataloggers. Instruction 11 outputs a precise 2 VAC excitation and measures the voltage drop due to the sensor resistance (Figure 5). The thermistor resistance changes with temperature. - Page 9 CR10XTCR Thermocouple Reference TABLE 3. Temperature, Resistance, and Datalogger Output Temperature °C Output °C Resistance OHMS -40.00 4067212 -39.18 -38.00 3543286 -37.55 -36.00 3092416 -35.83 -34.00 2703671 -34.02 -32.00 2367900 -32.13 -30.00 2077394 -30.18 -28.00 1825568 -28.19 -26.00 1606911 -26.15 -24.00 1416745 -24.11...
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Page 10: Electrically Noisy Environments
CR10XTCR Thermocouple Reference TABLE 4. Polynomial Coefficients Coefficient Value -53.4601 90.807 -83.257 52.283 -16.723 2.211 6. Electrically Noisy Environments AC power lines can be the source of electrical noise. If the datalogger is in an electronically noisy environment, the CR10XTCR temperature measurement should be measured with the AC half bridge (Instruction 5) with the 60 Hz rejection integration option on the CR10X (see Section 13 of the datalogger manual for more information on noise). - Page 11 This is a blank page.
- Page 12 Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com info@campbellsci.com Campbell Scientific Africa Pty. Ltd. (CSAf) PO Box 2450 Somerset West 7129 SOUTH AFRICA www.csafrica.co.za sales@csafrica.co.za Campbell Scientific Australia Pty. Ltd. (CSA)
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