Extech Instruments RH550, User Manual

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10 RH550-EN_V1.3 1/20

Select one data file by first tapping it (to highlight it) and then tap Open or Cancel.
Tap Exit History to get back to the History list.

To delete one file, Tap the right hand end of the file to check its check box, and then tap
DELETE.

To transfer/view data files on a PC, connect the RH550 to a PC using the supplied USB
cable. For complete details. Refer to the section PC Interface.

Click X to cancel and to exit this sub-menu.
4.5 DISPLAY SETUP

Set the screen brightness by dragging the brightness slider.

Set the screen-saver ON/OFF by tapping ON or OFF.

Set the screen-saver timer by tapping the small arrow on the programming field to open
the interactive numeric keypad.

Set the display Sleep Mode by tapping ON or OFF.

Set the Sleep Mode timer by tapping the small arrow on the programming field to open
the interactive numeric keypad.

When active, the screen-saver mode appears as shown below, providing real-time
relative humidity, air temperature, and dew point temperature information.

Click X to cancel and to exit this sub-menu or Save to save the changes.