Contents
1. Introduction 1
2. Electrical Characteristics 2
3. Installing the Data Logger 3
3.1. GPRS Connectivity 3
3.2. Input Power Supply 3
3.3. Output Power 4
3.4. LED Indicators 4
4. Connecting Instruments to the SmartObserver Data Logger 5
4.1. RS-232 Interface 5
4.2. CAN 6
4.3. RS-485 (Modbus) Interface 6
4.4. SDI-12 Interface 6
4.4. Digital GPIO Lines 6
4.5. Analog Voltage Inputs 7
4.6. Analog 4 – 20 mA Output 7
4.7. Analog Voltage Output 7
5. SmartObserver Settings 8
6. Data Logger Congurator Utility 11
7. SMS Diagnostics 14
8. Troubleshooting 15
9. Appendix A - Mechanical Assembly 17
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