Chapter 4. Using Special Features46 Model PM880 Portable Hygrometer User’s Manual4.1 Selecting English or Metric UnitsThe PM880 enables you to select either English or Metric for globalmeasurement units. The selected units become the default settings for everymeasurement with the metric/English option. To select measurement units:1. If the menu is not active, press [MENU].2. Use the arrow key to scroll to Meter and press [ENTER].3. Use the arrow key to scroll to Units and press [ENTER].4. Use the arrow keys to scroll to the desired units and press [ENTER].5. Press [F3] (OK) and then [MENU].The PM880 returns to taking measurements.4.2 Entering Date and TimeThe PM880 displays the current date and time above the measurements inthe upper right corner of the screen. The Date/Time command enables youto set the date or time. The current date and time are required for correctdata logging operation.1. If the menu is not active, press [MENU].2. Use the arrow key to scroll to Meter and press [ENTER].3. Use the arrow key to scroll to Date/Time and press [ENTER].4. Use the arrow keys to scroll to Date and press [ENTER].5. Use the numeric and arrow keys to enter the current month, day andyear, and press [ENTER].6. Use the arrow keys to scroll to Time and press [ENTER].7. Use the numeric and arrow keys to enter the current time and press[ENTER].8. Press [F3] (OK) and then [MENU].The PM880 returns to taking measurements. The new date and time aredisplayed.
