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Campbell Scientific 103B Probe Instruction Manual PDF

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Summary of Content for Campbell Scientific 103B Probe Instruction Manual PDF

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Model 103 and 103B Temperature Probes

Revision: 4/03

C o p y r i g h t ( c ) 1 9 9 2 - 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 .

Warranty and Assistance The MODEL 103 AND 103B TEMPERATURE PROBES are 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 replacing (at CAMPBELL SCIENTIFIC, INC.'s option) defective products. The customer shall assume all costs of removing, reinstalling, and shipping defective products to CAMPBELL SCIENTIFIC, INC. CAMPBELL SCIENTIFIC, INC. will return such products by surface carrier prepaid. This warranty shall not apply to any CAMPBELL SCIENTIFIC, INC. products which have been subjected to modification, misuse, neglect, accidents of nature, or shipping damage. This warranty is in lieu of all other warranties, expressed or implied, including warranties of merchantability or fitness for a particular purpose. CAMPBELL SCIENTIFIC, INC. is not liable for special, indirect, incidental, or consequential damages.

Products may not be returned without prior authorization. The following contact information is for US and International customers residing in countries served by Campbell Scientific, Inc. directly. Affiliate companies handle repairs for customers within their territories. Please visit www.campbellsci.com to determine which Campbell Scientific company serves your country. To obtain a Returned Materials Authorization (RMA), contact CAMPBELL SCIENTIFIC, INC., phone (435) 753-2342. After an applications engineer determines the nature of the problem, an RMA number will be issued. Please write this number clearly on the outside of the shipping container. CAMPBELL SCIENTIFIC's shipping address is:

CAMPBELL SCIENTIFIC, INC. RMA#_____ 815 West 1800 North Logan, Utah 84321-1784

CAMPBELL SCIENTIFIC, INC. does not accept collect calls.

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Model 103 and 103B Temperature Probes

1. General Designed for use with the BDR301 and BDR320 Basic Data Recorders, the 103 and 103B Thermistor Probes are for sensing air and soil/water temperatures, respectively. The probes incorporate the Fenwal Electronics UUT51J1 Thermistor and are identical except that the 103B is designed to be buried or submerged up to 200 feet in water. The standard lead length is 10 feet; other lead lengths are available on request.

To prevent direct solar radiation from heating the probe (causing high air temperature readings), the 103 probe should be mounted in the model 41303 6 Plate Radiation Shield or equivalent.

The 103 is read by Instruction 11, "THERM" in the Prompt Programming mode, which makes a ratiometric measurement and converts the result to oC through a seventh order polynomial.

The black outer jacket of the cable is Santoprene rubber. This compound was chosen for its resistance to temperature extremes, moisture, and UV degradation. However, this jacket will support combustion in air. It is rated as slow burning when tested according to U.L. 94 H.B. and will pass FMVSS302. Local fire codes may preclude its use inside buildings.

2. Accuracy The overall probe accuracy is a combination of Fenwal's interchangeability specification, the precision of the bridge resistors and the linearization error. In a "worst case" example all of the errors add in one direction to yield a 0.4 C accuracy over the range of -33 C to +48 C. The major error component is the 0.2 C (0 to 60 C, 0.5 C at -40 C) interchangeability specification of the thermistor. The error is typically less than the specification and if desired can be reduced with a single point calibration. The interchangeability error is predominantly offset and can be determined with a single point calibration. The error can then be compensated for with the offset entered in the measurement instruction.

The bridge resistors are 0.1% tolerance with a 10ppm temperature coefficient.

The error in the linearization used to calculate temperature from the measurement error is shown in Figure 1.

3. Hook-up Notes The 103 probe is connected to the BDR301 excitation, analog ground, ground, and one of the 4 single-ended input channels as shown in Figure 2.

NOTE

Model 103 and 103B Temperature Probes

2

FIGURE 1. Linearization Error

FIGURE 2. 103 Probe Schematic and Connections

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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) PO Box 444

Thuringowa Central QLD 4812 AUSTRALIA www.campbellsci.com.au info@campbellsci.com.au

Campbell Scientific do Brazil Ltda. (CSB) Rua Luisa Crapsi Orsi, 15 Butant

CEP: 005543-000 So Paulo SP BRAZIL www.campbellsci.com.br

suporte@campbellsci.com.br

Campbell Scientific Canada Corp. (CSC) 11564 - 149th Street NW

Edmonton, Alberta T5M 1W7 CANADA

www.campbellsci.ca dataloggers@campbellsci.ca

Campbell Scientific Ltd. (CSL) Campbell Park

80 Hathern Road Shepshed, Loughborough LE12 9GX

UNITED KINGDOM www.campbellsci.co.uk sales@campbellsci.co.uk

Campbell Scientific Ltd. (France) Miniparc du Verger - Bat. H

1, rue de Terre Neuve - Les Ulis 91967 COURTABOEUF CEDEX

FRA

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