Basic Operation; Operation Modes - Extech Instruments EasyView EA33 User Manual

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Basic Operation

1. With the sensor cover in place, press the
a short self-test.
2. Remove the
area to be measured.
3. Press the lux / fc button to select the desired units of measure.
4. Read the light level on the display. If the measurement is out of
range, ation will appear.
5. When the meter is turned on, the elapsed timer starts. The elapsed
timer shows days/hours or minutes/seconds. Use the TIME button
to toggle the view between minutes/seconds (M-S) and days/hours (D-H).

Operation Modes

In addition to the normal mode of operation where light level is measured, there are 5 special
modes, listed below. Each mode is explained in the subsequent sections of this manual. The SET
button is used to access the modes. The number on the lower left of the LCD (after the SET button
is pressed) represents the mode currently selected. Use the down arrow key to scroll to the desired
mode.
Programming modes
Mode Name of mode
SEt 01 Stray+ Light
SEt 02 Time - Hold
SEt 03 rtC
SEt 04 Int
SEt 05 COMP
MODE 1 - Stray Light Inhibit
This feature allows the user to measure light from one source while
automatically factoring out the light from a secondary (stray) unwanted
source.
1. Turn on the desired li
towards this source (the stray light source should be on also).
2. Press the SET key; SEt
center of the LCD and
(see diagram).
3. Press the ENTER key (
stray light sources (LIGHT + STRAY).
4. Press ENTER to store this value. STRAY will appear on the display
5. Turn off the primary light source.
6. Press the ENTER key again to store only the stray light source.
7. The meter will now compute and display the light level for only the desired (primary) light source.
8. Press the ENTER key to exit this mode.
www.
button to turn the meter on. The meter will perform
and place the sensor in the
Description
Cancels out stray light from light under test
Meter measures while timer counts down.
Reading is held on LCD when counter = 0.
Set the day and time for internal clock
Lumen-seconds, lux-hour, and fc-hour
measurements
Measurements are compared to high and low
limits.
will appear at the
on the lower left of the LCD
). The measurement at this point consists of the primary AND the
also appear on the display.
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