Onset HOBO User Manual

Part #: MAN-H22
Doc #: 9857-C
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Data Logger & Modules User’s Guide
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Onset HOBO Specifications

General

Battery Life	Depends on model. Typically 1 year, but can be several years depending on logging rate, parameters logged, and other factors.
Humidity Range	0% to 100% RH
Data Download	USB, Bluetooth
Logging Rate	1 second to 18 hours (configurable)
Dimensions	Varies by model. Check specific model specifications.
Weight	Varies by model. Check specific model specifications.
Waterproof	Yes (IP67 rated for some models)
Accuracy	±0.2°C (temperature), ±2.5% RH (humidity, varies by model)

Summary

Chapter 1: Introduction

Key features

Lists the main advantages and functionalities of the logger.

Chapter 2: Using the logger

Assembling the logger

Details the items and steps needed to prepare the logger for use.

Configuring the modules

Explains how to configure FlexSmart modules using HOBOware Pro.

Launching the logger

Guides users through the process of launching the logger with HOBOware Pro.

Checking logger status

Reading out data

Chapter 3: Understanding the logger

Sensor excitation

Explains the logger's 12V DC sensor excitation and its two modes.

Modules and sensors

Batteries

Selecting batteries

Battery life

Maximizing battery life

External power sources

Chapter 4: Modules

Analog (CVIA) module

Describes the two-channel DC signal-conditioning module for various sensors.

TRMS (TRMSA) module

Details the two-channel True RMS module for AC current and potential transformers.

Chapter 5: Maintenance

General maintenance schedule

Replacing batteries

Verifying logger operation

Chapter 6: Diagnostics and troubleshooting

Indicator LED behavior

Explains the meaning of the logger's status LEDs (green and red).

Problems and solutions

Lists common issues and their corresponding solutions for the logger.