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Τ

τ

Time constant

Appendix C. Glossary296

Table of Contents

Default Chapter3
- Table of Contents3
1 Introduction17
2 Precautions18
3 Initial Inspection19
4 CR300 Series Data Acquisition System Components20
- The CR300 Series Data Logger21
- Sensors23
5 Wiring Panel and Terminal Functions24
- Power Input26
  - Power LED Indicator28
- Power Output28
- Grounds29
- Communications Ports30
- Programmable Logic Control32
6 Setting up the CR300 Series34
7 Setting up Communications with the Data Logger35
8 USB or RS-232 Communications37
9 Virtual Ethernet over USB (RNDIS)40
10 Ethernet Communications Option42
- Configuring Data Logger Ethernet Settings42
- Ethernet Leds43
- Setting up Ethernet Communications between the Data Logger and Computer43
11 Wi-Fi Communications Option45
- Hosting a Wi-Fi Network45
- Joining a Wi-Fi Network49
  - Configure the Data Logger to Join a Wi-Fi Network50
  - Set up Loggernet or PC400W50
- Wi-Fi LED Indicator51
12 Cellular Communications Option53
- Pre-Installation54
- Installation57
  - Modules Using Konect Pakbus Router (Private Dynamic IP)57
  - Modules Using a Public Static IP62
- Cellular (TX/RX) LED Indicator66
- Signal Strength and Quality66
  - Signal Strength66
  - Signal Quality67
13 Radio Communications Option68
- Configuration Options69
- Basic RF407 Networks70
  - Configure the Base RF407-Series Radio70
  - Configure the Remote RF407-Series Data Logger(S)72
- RF407-Series Radio Communications with Multiple Data Loggers through a Data Logger Router75
14 Testing Communications with Ezsetup85
- Making the Software Connection86
15 Creating a Short Cut Data Logger Program87
- Sending a Program to the Data Logger90
16 Working with Data92
- Default Data Tables92
- Collecting Data93
  - Collecting Data Using Loggernet93
  - Collecting Data Using PC40094
- Viewing Historic Data94
- Data Types and Formats95
- About Data Tables98
  - Header Rows99
  - Data Records101
- Creating Data Tables in a Program101
17 Data Memory104
- Data Tables104
- Flash Memory105
  - CPU Drive105
18 Measurements106
- Voltage Measurements106
  - Single-Ended Measurements107
  - Differential Measurements108
- Current-Loop Measurements108
  - Voltage Ranges for Current Measurements109
  - Example Current-Loop Measurement Connections109
- Resistance Measurements111
- Period-Averaging Measurements117
- Pulse Measurements118
- Vibrating Wire Measurements123
  - Vspect123
19 Communications Protocols124
- General Serial Communications125
- Modbus Communications126
- Internet Communications136
- Mqtt138
  - Sending Data to an MQTT Broker138
  - Check Broker for Incoming Data149
- DNP3 Communications151
- Pakbus Communications152
- Communications153
20 Installation158
- Default Program159
- Data Logger Security160
- Web Interface173
- Power Budgeting173
- Field Work174
- Data Logger Enclosures174
- Electrostatic Discharge and Lightning Protection175
21 CR300 Series Maintenance177
- Data Logger Calibration177
- Internal Battery178
  - Replacing the Internal Battery179
- Updating the Operating System179
  - Sending an Operating System to a Local Data Logger180
  - Sending an Operating System to a Remote Data Logger181
- Gzip182
22 Tips and Troubleshooting184
- Checking Station Status185
- Understanding NAN and INF Occurrences187
- Timekeeping188
- Crbasic Program Errors190
  - Program Does Not Compile191
  - Program Compiles but Does Not Run Correctly191
- Troubleshooting Radio Communications192
- Reducing out of Memory Errors192
- Resetting the Data Logger192
- Troubleshooting Power Supplies194
- Using Terminal Mode195
- Ground Loops200
- Improving Voltage Measurement Quality205
- Field Calibration217
- File Name and Resource Errors217
23 Information Tables and Settings (Advanced)218
- Datatableinfo Table System Information219
- Status Table System Information220
- Settings227
24 CR300 Series Specifications255
- System Specifications255
- Physical Specifications256
- Power Requirements256
- Power Output Specifications258
- Analog Measurement Specifications259
- Pulse Measurement Specifications263
- Digital Input/Output Specifications264
  - Pulse-Width Modulation265
- Communications Specifications265
- Standards Compliance Specifications268
Appendix A. Configure Cellular Settings and Retrieve Status Information with Setsetting()270
Appendix B. Cellular Module Regulatory Information271
- Important Information for Australian Users271
- RF Exposure271

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