Manual
Table Of Contents
- Quick Start
- Overview
- Connecting the Logger to Your PC
- Setting Up the Logger To Record Data
- Custom Interval Setup
- Alarm Setup
- Using the Software to Check Logger Status
- Ending the Logging Session
- Powering Down the Logger
- Loading Logger Data
- Automatic Data Retrieval
- Working With the Data Graph
- Using the Zoom Feature
- Data Listing Window
- Using the Data Filter
- Hiding or Viewing Channels
- Exporting Logger Data
- Printing the Logger Data
- Calibrating the Logger
- Setting the Calibration Password
- Setting the Logger Real Time Clock
- Data Security
- Specifications
- MTL-30 Temperature Humidity Logger
- Replacing the MTL-30 Battery
- MTL-30 Specifications
- MTL-30 Logger Status LED
- MTL-20 Temperature Logger
- Replacing the MTL-20 Battery
- MTL-20 Logger Status LED
- MTL-20 Specifications
- GDL Temperature Humidity Logger with Display
- Turning the GDL On and Off
- GDL Sample Screen
- The GDL Summary Screen
- GDL Graph Screen
- GDL Buttons
- Replacing the GDL Battery
- GDL Specifications

DwyerLog User’s Guide Versin 1.2x 7/25
The checkbox to the left of the low/high alarms enables the alarm when checked, and disables the alarm when clear.
Using the Software to Check Logger Status
Selecting Status from the Logger menu brings up the Logger Status window. You can also bring up the status
window by pressing the
button on the toolbar. The logger status screen is separated into three panes:
General Logger Status and Data In Memory Pane
Logger State shows the internal state of the logger:
o Power Save Mode: This mode is entered when the battery is replaced, or the user powered down the
logger. The logger battery is not used in this mode and can last for up to 10 years. The logger's real time
clock is not running in this mode.










