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Campbell Scientific Vibrating CRVW3 3-Channel Vibrating-Wire Datalogger - Page 84

Manual Data Collection, 11.2.1 Manual Data Collection From the LoggerNet Station

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CRVW3 3-Channel Vibrating-Wire Datalogger Plan the collection interval in your scheduled collection scenario to collect data from your CRVW3 devices well before any data loss can occur. The Reset Tables button can be used to clear all the records out of a specified table. If you choose to reset the VW_Data table or one of the other tables, do so only with extreme caution (after having collected and confirmed receipt of all needed data) to ensure that no data loss occurs. 11.2 Manual Data Collection Although automatic data collection regularly retrieves the data from a CRVW3 station and stores it on the LoggerNet computer, there may be times when data needs to be retrieved without having to wait for the next scheduled poll (data collection) event to occur. For example, if data is collected automatically only once per hour or once every four hours, then manual collection can be used to ensure data collection is working properly without having to wait for an hour or more to confirm operation. For those cases, manual data collection can be used. It is also possible to retrieve data from a CRVW3 using manual collection when a technician visits the CRVW3 field site. 11.2.1 Manual Data Collection From the LoggerNet Station Use the ConnectScreen to collect data manually from a station using LoggerNet. Establish a preferred connection to a specific CRVW3 device from which data is to be collected by highlighting the station in the Stations list and pressing the Connect button. There are two kinds of manual collection methods available: Custom Collection and Collect Now. Use Collect Now when you want the collection of data to operate just as it does when automatic/scheduled collection occurs, except that the collect operation will occur immediately and not wait for the next automatic event. With Collect Now, data that is collected is placed into the same .DAT file used when 74

Section	Page
Revision and Copyright Information	1
Limited Warranty	3
Assistance	4
Precautions	5
Table of Contents	7
1. Introduction	11
2. Cautionary Statements	12
3. Initial Inspection	13
4. Quickstart	14
5. Overview	15
5.1 Measurement Theory	15
5.2 About This Manual	17
6. Specifications	18
7. Installation	19
7.1 Individual Devices and Radio Considerations	20
7.2 Software Requirements	20
8. Installation of Individual CRVW3 Stations	20
8.1 Lab Connection and Configuration	21
8.1.1 Preparing the Windows Computer (PC)	21
8.1.1.1 Device Configuration Utility (DevConfig)	21
8.1.1.2 Install the CRVW3 USB Driver	22
8.1.1.3 Network Planner	22
8.1.2 Wiring Temporary Sensors to the CRVW3	23
8.1.3 Providing Temporary Power to the CRVW3	25
8.1.4 Connecting to the CRVW3	25
8.1.5 Configuring the CRVW3	28
8.1.5.1 Key Settings	28
8.1.5.2 Managing Changes to Settings	31
8.1.6 Testing the Measurement Operation of the CRVW3	32
8.1.7 Validating Radio Connectivity in the Lab	34
8.1.7.1 Configuring the RF450 Radio	35
8.1.7.2 Configuring the CRVW3-RF451	35
8.1.7.3 Using DevConfig to Connect to the CRVW3-RF451 Over the Radio	36
8.2 Field Deployment of the CRVW3	36
8.2.1 Connecting Sensors to the CRVW3	37
8.2.2 Providing Power to the CRVW3	39
8.2.2.1 Alkaline D-Cell Option (–ALK)	39
8.2.2.2 Rechargeable Battery Option (–RC)	41
8.2.2.3 Grid Power	42
8.2.3 Humidity Monitoring and Control	43
8.2.4 Mounting the CRVW3 Enclosure	43
8.2.5 Installing the CRVW3 Antenna	44
8.2.6 Connecting the CRVW3 Electrical System to Earth Ground	45
8.2.7 Validating and Fine-Tuning CRVW3 Settings	45
8.2.8 Confirming CRVW3 Sensor Measurement Operation	46
8.2.8.1 LED Operation	46
8.2.8.2 Validation with DevConfig	48
8.2.9 Validating CRVW3 Radio Operation	50
8.2.10 Sealing the CRVW3 Enclosure	50
8.3 On-site Manual Data Collection	51
9. Radio Networks	51
9.1 Simple Radio Network Definition	52
9.2 Simple Network Installation Overview	53
9.3 CRVW3-RF451 Simple Network Installation	53
9.3.1 Deploying CRVW3 End-node Stations, Confirming Radio Connectivity	54
9.3.2 Base Station Installation and Validation	54
9.3.3 Configuring LoggerNet for Connectivity and Scheduled Collection	55
10. Complex (Large) Radio Networks	56
10.1 Radio Network Station Types	56
10.1.1 LoggerNet Computer Station	56
10.1.2 Base Radio Station	57
10.1.3 CRVW3 End-node Station	58
10.1.4 CRVW3 Repeater Station	58
10.1.5 Dedicated Repeater Station	58
10.1.6 Aggregating Datalogger Station	59
10.2 Planning the Radio Network	59
10.2.1 Sensor Planning	61
10.2.2 Planning for CRVW3 End-node Stations	62
10.2.3 Repeater Planning	63
10.2.4 LoggerNet Station Planning	63
10.2.5 Planning the Base Station	64
10.2.6 Planning RF451 Radio Networks	65
10.2.6.1 Base Station Design for RF451 Radio Networks	66
10.2.7 Plan Validation and Hardware Procurement	67
10.2.7.1 Pre-procurement Field Visits	67
10.2.7.2 Plan Validation with Others	68
10.2.7.3 Hardware Procurement	68
10.3 Deployment Strategy	68
10.3.1 Radio Network Lab Validation	68
10.3.2 Field Deployment Considerations	69
10.4 Deployment of CRVW3 Radio Stations	70
10.4.1 CRVW3-RF451 Deployment	70
10.5 Base Station Deployment	71
10.5.1 Base Station on the RF451 Network	72
10.6 Repeater Station Deployment	73
10.6.1 Repeaters on RF451 Networks	73
10.7 LoggerNet Configuration	74
10.7.1 Physical Connection to the Base Station	74
10.7.2 Configuring the Network Map of LoggerNet	74
10.7.3 Connecting to CRVW3 Stations	79
10.7.4 Setting up Automatic Data Collection	81
11. Operation of CRVW3 Networks	81
11.1 Monitoring Automatic Data Collection	82
11.2 Manual Data Collection	84
11.2.1 Manual Data Collection From the LoggerNet Station	84
11.2.2 Manual Data Collection at the CRVW3 Site	85
11.3 Station Health Monitoring	86
11.4 Processing Collected Data	87
11.4.1 Monitoring Data Influx Using Real-time Displays	87
11.4.2 Analyzing and Publishing Historical Data	87
12. Maintenance of CRVW3 Networks	89
12.1 CRVW3 Maintenance with LoggerNet	89
12.1.1 Battery Monitoring	89
12.1.2 Sensor Spectrum Checks	90
12.1.3 Adjusting Device Settings	92
12.2 CRVW3 On-site Maintenance Visits	93
13. Troubleshooting CRVW3 Networks	94
13.1 Troubleshooting Problems Remotely Using LoggerNet	95
13.2 Troubleshooting Problems by Visiting the CRVW3 Site	95
Appendix A. Updating CRVW3 Firmware	97
Appendix B. Terminal Mode from Connect Screen or DevConfig	101
Appendix C. Aggregating Dataloggers	103
C.1 Aggregator Station Configuration	103
C.2 Programming the Aggregator	104
Appendix D. GetDataRecord Sample Program	105
Appendix E. Engineering Output and Calibration	107
E.1 Engineering Output	107
E.2 Calibration of Sensors	108