Extech Instruments RH520 User Manual page 12

USING THE CLOCK TO SORT THROUGH STORED READINGS
1. Press the TIME button in the Standard View mode
2. Use the ARROW buttons to select a particular time of day.
3. The temperature and humidity readings for the selected Time will display.
4. Press VIEW to return to the Standard View.
Use the arrow buttons to scroll to the desired time.
Readings recorded at the selected time will display
DEW POINT DISPLAY
Press the TEMP and the RH buttons simultaneously to view the Dew Point reading. The
DEW POINT display icon will switch on above the temperature. See the diagram below.
Press VIEW to return to the standard view mode.
12 RH520 V2.9 3/07