Campbell-scientific CS110 Electric Field Meter Manuel d'utilisateur

CS110 Electric Field MeterRevision: 4/12Copyright © 2005-2012Campbell Scientific, Inc.

CS110 Electric Field Meter Unlike traditional rotating vane field mills, the CS110 uses a reciprocating shutter. A stepper motor opens and then close

CS110 Electric Field Meter 1.5 Digital I/O Three general purpose 0 to 5 V digital I/O lines are available on the CS110 Power cable (CS110CBL3-L) that

CS110 Electric Field Meter 2. CS110 Specifications Electric Field Measurement Performance: Parallel-Plate Configuration Accuracy ±1% of reading + 60

CS110 Electric Field Meter Sample (Measurement) Rate: Programmable sample rate up to 5 samples per second, variable sample rates possible. Variable e

CS110 Electric Field Meter Rugged Construction: Ultra-reliable metallic ground connection to reciprocating shutter (no wiping contact), brushless ste

CS110 Electric Field Meter 3. CS110 Measurement Details The charge amplifier circuitry of the reciprocating electric field meter is depicted in Figur

CS110 Electric Field Meter 160 FIGURE 3. Charge amplifier output during an electric field measurement cycle Offset voltages Voff1 and Voff2 are zero

CS110 Electric Field Meter Ileak = Cf·(Voff1 – Voff2)/ΔT + Icomp (eq. 2) Where Cf is the value of feedback capacitor used in the charge amplifier,

CS110 Electric Field Meter 11010010000.1 1 10 100Measurement Interval (Seconds)Average Current (mA) @ 12 V FIGURE 4. CS110 average current consumptio

CS110 Electric Field Meter CS110 CS I/O cable (CS110CBL2-L). Examples of CS I/O peripherals include the CR1000 Keyboard Display and the COM220 phone

CS110 Electric Field Meter minimize non-ideal fringing effects. Sharp corners were avoided in order to prevent corona discharge. All metal parts of

CS110 Electric Field Meter of variations in surface cleanliness along with charging and discharging processes. Polished 316-L stainless-steel is used

CS110 Electric Field Meter FIGURE 7. NIST calibration certificate Careful removal and replacement of the stator on the CS110 does not invalidate the

CS110 Electric Field Meter Consequently, a downward facing and elevated configuration as illustrated in Figure 8 is recommended for long-term field ap

CS110 Electric Field Meter FIGURE 9. Campbell Scientific, Inc. electric field meter site correction facility 16

CS110 Electric Field Meter An upward-facing calibration kit (PN: 17579) was developed to hold the CS110 in a flush-mounted upward-facing position, as

CS110 Electric Field Meter utilized to autonomously measure, process and store data to aid in site correction. Campbell Scientific, Inc. has performe

CS110 Electric Field Meter covering the stator with a clean Zero Electric Field Cover (PN: 17642). Fair weather field site correction is not recommen

CS110 Electric Field Meter August 2, 2005 Thunderstorm at Logan, Utah-5000-4000-3000-2000-100001000200030004000500060007000800090005:34:00 5:40:00 5:4

CS110 Electric Field Meter A network or array of electric field meters improves lightning warning because of a wider area of coverage along with measu

Warranty “PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in materi

CS110 Electric Field Meter Public variables are defined and available for viewing in the Public table, which is a data table automatically set up by t

CS110 Electric Field Meter Units wind_speed=mph Public wind_dir Units wind_dir=deg Public solar_rad Units solar_rad=W/m2 Public air_temp Units air_tem

CS110 Electric Field Meter Scan(1,sec,0,0) for k = 1 to 16 'Initialize status array. E_status(k) = 0 next PanelTemp (panel_temp,250) Bat

CS110 Electric Field Meter accomplished using a disable variable (DisableVar) associated with appropriate output processing instructions. The last pa

CS110 Electric Field Meter Single-ended voltage measurements are referenced to ground, rather than the low side of a differential input. The VoltSE si

CS110 Electric Field Meter determine if results are returned as counts for a given interval (POption = 0), or as frequency = counts/(scan interval in

CS110 Electric Field Meter purchased and connected to the SOLAR RADIATION connector to interface to either the CS100 or the CS106 barometric pressure

CS110 Electric Field Meter 8.7 Measuring Rainfall Circular connector labeled RAIN can be used to connect up a rain gauge using a switch closure such

CS110 Electric Field Meter default PakBus address of 1. Use LoggerNet Tool Bar’s “Setup” button or “EZ Setup” button to create the PC to CS110 commun

CS110 Electric Field Meter Remember to click on the “Apply” button to cause the settings to take effect. The “Apply” button is grayed out once it ha

Assistance Products may not be returned without prior authorization. The following contact information is for US and international customers residing

CS110 Electric Field Meter If the connection is made and the stations time shows up in the window, you can then select the “Numeric:” button and add t

CS110 Electric Field Meter 10. Maintenance 10.1 Checking Site Ground Integrity The CS110 electric field meter needs to be electrically connected to

CS110 Electric Field Meter power electronics to high voltage switchgear. NO-OX-ID A-SPECIAL prevents the formation of oxides, sulfides and other corr

CS110 Electric Field Meter • Turbine studs • Coal crushers • Casting and Molding equipment • Heat exchangers 10.3 Self-Check Features The CS1

CS110 Electric Field Meter 10.4 Cleaning the CS110 Electrode Head The CS110 motor assembly illustrating the 316-L stainless-steel stator, shutter, an

CS110 Electric Field Meter ±4.2 nA. Leakage current values in excess of ±4.2 nA can cause measurement errors and are indicated by status = 11. Cleani

CS110 Electric Field Meter VoltDiff(Internal_RH,1,mV2500,5,True,0,250,0.1,0) 'Internal humidity measure. Changing of CS110 desiccant is recommend

CS110 Electric Field Meter 2. Inspect the gasket on the CS110 lid making sure that a good seal is possible when the lid is replaced. 3. Remove the

CS110 Electric Field Meter 40 10.7 Re-Calibration Re-calibration of measurement instruments is commonly done in data critical applications in order t

Appendix A. CS110 Measurement Status Codes Status codes 1 through 3: Good Instrument Health. status = 1, Good instrument health. ±250 mV measureme

CS110 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

Appendix A. CS110 Measurement Status Codes A-2 Status codes 11 through 16: Measurement warnings and errors. status = 11, Leakage current exceeds co

Appendix B. CS110 Accessories B.1 Zero Electric Field Cover As previously mentioned, unwanted surface charges residing on non-conductive deposits on

Appendix B. CS110 Accessories B-2

Appendix C. CS110 Connector Pin-outs The following information describes the connectors that mate with the built-in (bulkhead) connectors on the CS11

Appendix C. CS110 Connector Pin-outs RAIN CONNECTOR Connector is male and is CSI PN 9889 (Conxall #6282-6PG-522 or Switchcraft #EN3C6M). Pin 1 is in

Appendix C. CS110 Connector Pin-outs SOLAR RADIATION CONNECTOR Connector is male and is CSI PN 9889 (Conxall #6282-6PG-522 or Switchcraft #EN3C6M).

Appendix C. CS110 Connector Pin-outs C-4

Appendix D. Servicing the CS110 The CS110 has been designed to provide reliable electric field measurements and to simplify and minimize maintenance.

Appendix D. Servicing the CS110 CS110 panel board, after removing the two thumb screws on the CR1000 module. When installing a CR1000 into the CS110

Appendix D. Servicing the CS110 D.5 Shutter/Encoder Alignment A factory trim is done to align the position of the CS110 shutter with an Index mark o

CS110 Table of Contents 10. Maintenance ...33 10.1 Checking Site Ground Integrity ...

Appendix D. Servicing the CS110 EndIf If Flag(2) Then CS110Trim(-1) 'Take a step closed. Flag(2) = 0 'Reset Flag 2. EndIf NextSca

Appendix D. Servicing the CS110 Motion of Encoder Base PlateEncodePlate Connector Locking Plate r Base FIGURE D-2. CS110 motor assembly Referring t

Appendix D. Servicing the CS110 'Program to open/close the CS110 shutter (CS110_Shutter1.cr1). 'Last updated by Jody Swenson on 9/26/05.

Appendix E. CS110 as a Slow Antenna As previously mentioned the CS110 can sample the external electric field at a maximum rate of 5 Hz (200 ms) using

Appendix E. CS110 as a Slow Antenna 0.1 1 10 100 1103× 1104×00.1670.3330.50.6670.8331Overall Frequency Response of CS110 Slow-Antenna Measurement wit

Appendix E. CS110 as a Slow Antenna E.2 Response of the CS110 Slow Antenna in the Time Domain The following graphs shows one lightning strike measur

Appendix E. CS110 as a Slow Antenna FIGURE E-3. KSC electric field change and CS110 slow antenna data The KSC electric field mill and the CS110 wer

Appendix E. CS110 as a Slow Antenna E.3 Programming The following CRBasic program utilizes the slow antenna capability of the CS110. 'Program

Appendix E. CS110 as a Slow Antenna E-6 E.4 Calibration The factory calibration described in Section 5 applies to the maximum amplitude of the step

Appendix F. Example CRBasic Programs An example CS110 weather station program using a variable electric field measurement rate in order to minimize c

CS110 Table of Contents H. Tripod CS110 and StrikeGuard Site... H-1 H.1 Tripod CS110 and StrikeGuard ...

Appendix F. Example CRBasic Programs DataTable(Tabslow,1,-1) '-1 to auto-allocate all available memory. DataInterval(0,60,sec,10) 'Avera

Appendix F. Example CRBasic Programs CS110(E_field,leakage_cur,status,_60Hz,Mcorrected,0) If E_field = NAN Then meas_error = 1 'Disa

Appendix F. Example CRBasic Programs F-4

Appendix G. CS110 2 Meter CM10 Tripod Site FIGURE G-1. CS110 2 Meter CM10 Tripod site The Tripod_CS110 site consists of the CS110 mounted on the CM

Appendix G. CS110 2 Meter CM10 Tripod Site Installation of the Tripod_CS110 Site: Drive the ground rod into the ground where the center of the tripod

Appendix G. CS110 2 Meter CM10 Tripod Site FIGURE G-2. CS110 on CM10 Tripod Mast Mount the fiberglass enclosure to the top of the leg facing the eq

Appendix G. CS110 2 Meter CM10 Tripod Site FIGURE G-3. Earth grounding Stake the tripod to the ground and/or weigh it down with sand bags. Determin

Appendix G. CS110 2 Meter CM10 Tripod Site Site Correction for Tripod CS110 Only Site - October 2, 20051 minute average of 1 second dataResults indic

Appendix G. CS110 2 Meter CM10 Tripod Site G-6

Appendix H. Tripod CS110 and StrikeGuard Site H.1 Tripod CS110 and StrikeGuard FIGURE H-1. Tripod CS110 and StrikeGuard The Tripod CS110 and Strik

CS110 Table of Contents iv

Appendix H. Tripod CS110 and StrikeGuard Site H.1.1 Installation of the Tripod CS110 and StrikeGuard Site Drive the ground rod into the ground where

Appendix H. Tripod CS110 and StrikeGuard Site FIGURE H-2. CS110 and StrikeGuard on tripod mast Mount the fiberglass enclosure to the top of the leg

Appendix H. Tripod CS110 and StrikeGuard Site FIGURE H-3. Grounding the CS110 grounding strap H-4

Appendix H. Tripod CS110 and StrikeGuard Site FIGURE H-4. Grounding the tripod and battery Stake the tripod to the ground or weight it down with san

Appendix H. Tripod CS110 and StrikeGuard Site FIGURE H-5. Connections for combined system H-6

Appendix H. Tripod CS110 and StrikeGuard Site Power and communication cables should be run down the equator side of the mast and under the enclosure

Appendix H. Tripod CS110 and StrikeGuard Site H-8

Campbell Scientific Companies Campbell Scientific, Inc. (CSI) 815 West 1800 North Logan, Utah 84321 UNITED STATES www.campbellsci.com • info@campbel

CS110 Electric Field Meter 1. General Description 1.1 CS110 Introduction Atmospheric electric fields have been measured for decades by electric fiel