METER WP4C - Led; Buttons

10
SYSTEM
Fan
IR thermometer
Optical sensor
Mirror
Locking levers
20-pin socket
Figure6 Sample chamber
3.2.2 LED
A flashing green LED, located on the left front corner of the WP4C case, blinks to notify the
user of different settings.
The LED flashes once when a sample reading starts. In Fast and Precise reading modes, the
LED will flash continuously when the sample reading is finished until the sample drawer
knob is moved to the OPEN/LOAD position. The LED settings cannot be changed or turned off.
3.2.3 BUTTONS
Four buttons flank the LCD screen (Figure7). The function of each button changes
depending on the current screen (Section3.2.4).
WP4C
Dewpoint PotentiaMeter
Figure7 Buttons