Chapter 1. Getting Started
Model PM880 Portable Hygrometer User’s Manual 7
1.3 Entering Data Using the Keypad
Use the information below to familiarize yourself with how to enter data 
using the PM880 keypad.
Use the arrow keys to scroll to a menu topic and then press 
[ENTER] to open 
the menu.
When entering data into a menu window, press:
• The [] key to scroll forward through the menu options.
• The [] key to scroll back through menu options.
• The [F2] key (Cancel) or the [ESC] key to exit a menu at any time and 
return to Operate Mode without changing data.
Note: If you enter an incorrect numeric value, press the [] key to erase 
the last digit entered.
1.4 Entering Setup Data
For immediate operation, the PM880 requires only a moisture probe and its 
corresponding calibration data. You should enter data for each site where 
you plan to make a measurement. Once entered, you can save it into a file 
that can be recalled at the measurement site. Use the sections that follow to 
program your meter.
Note: The PM880 has additional menus that enable you to tailor 
measurements as specifically as possible to your particular 
application. For more information on menu options refer to 
Chapter 4, Using Special Features.