HOBO Energy Logger Pro User’s Guide iii
Contents
Chapter 1: Introduction .............................................................................................................................. 1
Overview .................................................................................................................................................. 1
Key features ............................................................................................................................................. 1
FlexSmart modules .................................................................................................................................. 2
Smart Sensors ......................................................................................................................................... 2
Logger components ................................................................................................................................. 3
Chapter 2: Using the logger ....................................................................................................................... 4
Assembling the logger ............................................................................................................................. 4
Configuring the modules .......................................................................................................................... 6
Launching the logger ............................................................................................................................... 6
Checking logger status ............................................................................................................................ 7
Stopping the logger .................................................................................................................................. 7
Reading out data ...................................................................................................................................... 7
Chapter 3: Understanding the logger ....................................................................................................... 8
Sensor excitation ..................................................................................................................................... 8
Modules and sensors ............................................................................................................................... 9
Time accuracy ........................................................................................................................................ 10
Memory .................................................................................................................................................. 11
Batteries ................................................................................................................................................. 11
External power sources ......................................................................................................................... 14
Chapter 4: Modules ................................................................................................................................... 15
Analog (CVIA) module ........................................................................................................................... 15
TRMS (TRMSA) module ........................................................................................................................ 17
Chapter 5: Maintainance ........................................................................................................................... 19
General maintenance schedule ............................................................................................................. 19
Inspecting the logger housing and cables ............................................................................................. 19
Verifying sensor accuracy ...................................................................................................................... 19
Cleaning the logger ................................................................................................................................ 19
Replacing batteries ................................................................................................................................ 20
Verifying logger operation ...................................................................................................................... 21
Chapter 6: Diagnostics and troubleshooting ......................................................................................... 22
Indicator LED behavior .......................................................................................................................... 22
Problems and solutions .......................................................................................................................... 24
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