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DPA953.1
LSI DPA953.1 Manuals
Manuals and User Guides for LSI DPA953.1. We have
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LSI DPA953.1 manual available for free PDF download: User Manual
LSI DPA953.1 User Manual (76 pages)
Secondary standard pyranometer with Modbus RTU
Brand:
LSI
| Category:
Measuring Instruments
| Size: 2 MB
Table of Contents
Cautionary Statements
3
Table of Contents
4
List of Symbols
7
Introduction
8
1 Ordering and Checking at Delivery
13
Included Items
13
2 Instrument Principle and Theory
14
Why a "Spectrally Flat" Pyranometer
17
Operating Modes: Heating and Ventilation
19
Overview of Remote Diagnostics
20
Use of the Tilt Sensor
20
3 Specifications of DPA953.1
21
Dimensions of DPA953.1
27
4 Standards and Recommended Practices for Use
28
Classification Standards
28
General Use for Solar Radiation Measurement
28
Specific Use for Outdoor PV System Performance Testing
29
Specific Use in Meteorology and Climatology
29
General Use for Sunshine Duration Measurement
30
5 Installation of DPA953.1
31
Site Selection and Mechanical Installation
31
Installation of the Sun Screen
33
Installation of Optional Mounts
34
Levelling Mount
34
Tube Levelling Mount
36
Electrical Installation
37
Internal Protection
38
Connecting to an RS-485 Network
39
RS-485 Network
39
Electrical Isolation, Grounding and Shield Connection
41
Spatially Extended Installations (Total Cable Lengths >5 M)
41
Spatially Compact Installations (Total Cable Lengths ≤5 M)
42
Cabling Requirements
42
Connecting to a PC
44
6 Communication with DPA953.1
45
Network Communication: Getting Started
45
Changing the Device Address and Serial Communication Settings
46
7 Use of Remote Diagnostics
48
Recommendations
48
Sensor Body Temperature
48
Tilt Angle
49
Internal Relative Humidity
49
Heater Current
49
Ventilator Current
49
Ventilator Speed
50
8 Making a Dependable Measurement
51
The Concept of Dependability
51
Reliability of the Measurement
52
Speed of Repair and Maintenance
53
Uncertainty Evaluation
53
Evaluation of Measurement Uncertainty under Outdoor Conditions
53
Calibration Uncertainty
55
9 Maintenance and Trouble Shooting
56
Recommended Maintenance and Quality Assurance
56
Trouble Shooting
57
Calibration and Checks in the Field
59
Data Quality Assurance
60
10 Handling
60
11 Storage, Packaging, Preservation, Delivery, Disposal
60
12 Safety
60
13 Appendices
61
Appendix On Tools for DPA953.1
61
Appendix On Spare Parts for DPA953.1
61
Appendix On the Ventilator
61
Appendix On Standards for Classification and Calibration
62
Appendix On Calibration Hierarchy
62
Appendix On Meteorological Radiation Quantities
64
Appendix On ISO and WMO Classification Tables
65
Appendix On ISO 9060:1990 Classification no Longer Valid
67
Appendix On Definition of Pyranometer Specifications
68
Appendix On Terminology / Glossary
70
Appendix On Function Codes, Register and Coil Overview
71
Appendix On Electromagnetic Compatibility (EMC) Testing
75
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