EA33 V2.0 06/06
5
MODE 2 – Elapsed Timer with Hold
In this mode, measurements are made while the countdown timer is running. When the
timer reaches zero, the last measurement is held on the display (see diagram).
1. Press the SET key; ‘SEt 01’ will display.
2. Press the down arrow key to change to the ‘SEt 02’
parameter. ‘TIME-HOLD’ will appear on the display.
3. Press the ENTER key to call up the timer.
4. Use the up/down arrow keys to set the desired seconds.
5. Press the ENTER key to program the number of minutes.
6. Use the up/down arrow keys to set the minutes.
7. Press the ENTER key to start the countdown timer. When
the timer counts down, the last reading will be held on the display.
8. Press the ENTER key to exit this mode.
MODE 3 - Real Time Clock Setting
1. Press the SET key; ‘SEt01’ will display.
2. Press the down arrow key twice to select the ‘SEt03’ parameter. ‘ftc’ will appear on the
lower right of the LCD.
3. Press the ENTER key to enter the edit mode for ‘seconds’.
4. Use the up/down arrow key to program the ‘seconds’.
5. Repeat the previous two steps for the ‘minutes’, ‘hours’, and ‘day’ settings.
6. Press the ENTER key when finished.
7. Use the TIME key to toggle between minutes-seconds (m-s) and day-hour (D-H) views.
MODE 4 - Integral Illuminance Mode
Integral Illuminance is a luminous energy measurement based on the rate of flow of flux
(expressed in lumen-seconds). The Model EA33 can also measure any photometric
quantity on a time dependent basis. For example, the illuminance could be integrated over
time to yield lux-hours (lx-h) or foot candle-hours (fc-h).
1. Press the SET key; ‘SEt 01’ will appear on the display.
2. Press the down arrow key three times to select the ‘SEt
04’ mode. ‘int’ will also appear on the LCD.
3. Press the ENTER key to start the Integral Illuminance
measurement. The meter will set the first measurement
as a reference. The ‘lx-h’ or ‘fc-h’ display icon will appear
and the timer will start (the cycle number appears on the
lower left of the LCD).
4. If measurements exceed the reference value, the display
will freeze and the ‘+’ symbol will appear. Note that the
timer will also halt.
5. The maximum indication of integral illuminance is
999999. When this maximum is exceeded, the integration
number (Cycle no. at lower left of LCD) can be checked.
The maximum number of integration cycles is 99.
6. Press the ENTER key to exit this mode of operation.
