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Campbell Hausfeld CS115 - page 1
INSTRUCTION MANUAL CS1 15 Barometric Pressure Sensor 3/03 Copyright (c) 2002-2003 Campbell Scientific, Inc. ...
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Campbell Hausfeld CS115 - page 2
Warranty and Assistance The CS115 BAROMETR IC PRESS URE SE NSOR is w arranted by CAMPBELL SCIENTIFIC, INC. to be f ree from def ects in m aterials and workmanship und er no rmal use a nd ser vice fo r twelve ( 12 ) months fr om date of shipment unle ss spec ified othe rwise. B atte ries ha ve no warr anty. CAMP BE LL SCIENTIFIC, INC.' s obliga ...
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Campbell Hausfeld CS115 - page 3
i CS115 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. Introducti on ................................................................. 1 2. Specifications ............................................................. 2 2.1 ...
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Campbell Hausfeld CS115 - page 4
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Campbell Hausfeld CS115 - page 5
1 CS115 Barometric Pressure Sensor The CS115 Barometric Pressure Sensor us es the resonant silicon technology pressure sensor developed by Druck. The sensor outputs a variable frequency which can be measured using the datalogger' s period averaging instruction or pulse count instruction. The entire process is essentially digital from sensor el ...
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Campbell Hausfeld CS115 - page 6
CS115 Barometric Pr essure Sensor 2 2. Specifications 2.1 Performance Measurem ent R ange: 600 mb t o 1100 mb (hPa) Operating Tem perature Range: -40°C to +60°C Hum idity Ran ge: non- condens ing Media Compatibility: non-corrosive gas Total Accuracy 1 : at 20°C ±0.3 mb -10°C to +50°C ±0.5 mb -20°C to +60°C ±1.5 mb -40°C to +60°C ±2.0 m ...
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Campbell Hausfeld CS115 - page 7
CS115 Barometric Pr essure Sensor 3 3. Installation 3.1 Venting and Condensati on To p revent condensation, install the se nsor in an en vironm entally protected enclosure, com plete w ith desiccant w hich should be chan ged at regular intervals. A s the sen sor mus t detect the external am bient pressu re the enclosu re mus t not be ‘hermeticall ...
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Campbell Hausfeld CS115 - page 8
CS115 Barometric Pr essure Sensor 4 As y ou m ount the sen sor onto the back plate of the enclosu re, place the fork lu g under the m ountin g screw to accomplish the proper groun ding of the s ensor as show n i n Fig ure 3-1. 3.3 Jumper Settings The CS115 ha s tw o operating m odes, ‘ contin uous’ and ‘tri ggered’ . It is norm ally shipped ...
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Campbell Hausfeld CS115 - page 9
CS115 Barometric Pr essure Sensor 5 4. Wiring The CS115 w iring instru ctions f or the exam ple program s are sh own in Table 4-1. For datal oggers C R500, CR510, C R10(X), CR 23X, and CR5000, analog ch annel is us ed for period averagin g meas uremen t. For CR7, 21X and CR9000 pu lse chann el is us ed for pulse cou nt m easurem ent. TABLE 4-1. Wir ...
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Campbell Hausfeld CS115 - page 10
CS115 Barometric Pr essure Sensor 6 Once th e CS115 is tu rned on one m inu te before every hour, an d the correct measu rement is m ade, it is then copied into the current variable called "Pressure" . The sensor is then turned off im m ediately follow ing the meas uremen t. In thi s exam ple, the CR 5000 measu res the CS 115 once every h ...
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Campbell Hausfeld CS115 - page 11
CS115 Barometric Pr essure Sensor 7 5.1 Period Averaging Measurement Examples 5.1.1 Period Averaging Measurement Example fo r CR10(X) EXAMPLE 1. Sam ple Program for CR 10(X) ;{CR 10X} ; *Table 1 Prog ram 01: 1 Execution Interval (seconds ) ;Turn on C S115 one m inut e before the h our ; 1: If tim e is (P92) 1: 59 Minutes (Seconds --) in to a 2: 60 ...
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Campbell Hausfeld CS115 - page 12
CS115 Barometric Pr essure Sensor 8 8: Sam ple (P70) 1: 1 Reps 2: 1* Loc [ P_m b ] *Table 2 Prog ram 02: 0.0000 Execution In terval (secon ds) *Table 3 S ubroutin es End Program -Input Loca tio ns- 1 P_m b * Proper entries w ill vary w ith program an d datalogger channel, and input location assign ments. 5.1.2 Period Averaging Measurement Example f ...
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Campbell Hausfeld CS115 - page 13
CS115 Barometric Pr essure Sensor 9 ;T urn off CS1 15 ; 4: Do (P86) 1: 58* Set Port 8* Low 5: If tim e is (P92) 1: 0 Minutes (Secon ds --) in to a 2: 60 Interval (sam e un its as above) 3: 1 0 Set Out put Flag H igh (Flag 0 ) 6: Real Tim e (P77) 1: 0110 Day ,Hour/Mi nute (m idnig ht = 0000) 7: Sam ple (P70) 1: 1 Reps 2: 1* Loc [ P_m b ] *Table 2 Pr ...
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Campbell Hausfeld CS115 - page 14
CS115 Barometric Pr essure Sensor 10 3: Period A verage (SE) (P27) 1: 1 Reps 2: 14 200 kHz Max Freq @ 500 m V Peak to Peak, F req Output 3: 24* SE Chan nel 4: 10 No. of Cy cles 5: 5 Timeou t (unit s = 0.01 seconds) 6: 1* Loc [ P_m b ] 7: 1000 Mult 8: 0.0 Of fset ;T urn off CS1 15 ; 4: Do (P86) 1: 51* Set Port 1* Low 5: End (P95) 6: If tim e is (P92 ...
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Campbell Hausfeld CS115 - page 15
CS115 Barometric Pr essure Sensor 11 5.1.4 Period Averaging Measurement Example fo r CR5000 in a Fast Executing Program at 10Hz EXAMPLE 4. Sam pl e Program for C R5000 ‘CR5000 ' 'Sample Progr am to Measure C S115 Barometri c Pressur e Sensor ' ' Public CS115_Freq, Pressu re Units Pressure = mb Begi nPr og Scan (100,m Sec,3,0) ...
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Campbell Hausfeld CS115 - page 16
CS115 Barometric Pr essure Sensor 12 5.2 Pulse Count Measure ment Exampl e 5.2.1 Pulse Count Measu rement Example for 21X EXAMPLE 5. Sam ple Program for 21X ;{21X} ; *Table 1 Prog ram 01: 1 Execution Interval (seconds ) 1: If tim e is (P92) 1: 59 Minu tes into a 2: 60 Minu te Interval 3: 46* Set Port 6* Hig h 2: If tim e is (P92) 1: 0 Minutes into ...
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Campbell Hausfeld CS115 - page 17
CS115 Barometric Pr essure Sensor 13 *Table 3 S ubroutin es End Program -Input Loca tio ns- 1 P_mb 1 1 1 * Proper entries w ill vary w ith program an d datalogger channel, and input location assign ments. 5.3 Output Resolution When s toring th e valu es from the CS115 t o a datalogger’ s fin al storage location, or to a da ta table, care must be ...
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Campbell Hausfeld CS115 - page 18
CS115 Barometric Pr essure Sensor 14 The corrections in volved can be signi ficant: e.g ., at 1000 mb an d 20°C, barometric pressure w ill decrease by 1.1 mb for ev ery 10 meter in crease in altitude. 7. Maintenance and Calibration Since the sen sor is sem i-sealed, m inim um m aintenan ce is required. 1. Visually inspect the cable conn ectio n to ...
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Campbell Hausfeld CS115 - page 19
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Campbell Hausfeld CS115 - page 20
Campbell Scie ntific Com panies Campbell Scientific, Inc. (CS I) 815 West 1 800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com info@campb ellsci.com Campbell Scientif ic Africa Pty. Ltd. (CSAf) PO B ox 24 50 Somers et West 7129 SOUTH AFRICA www.csafrica.co.za sales@csafrica.co.za Campbell Scientific Au st ralia Pt y. Ltd. (CSA) PO B ox 4 ...
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