User's Manual

11 EX540 V1.0 2/09
DISPLAY BACKLIGHT
Press the
key to turn the backlight on. The backlight will automatically turn off after
SET time. Press the EXIT button to exit the backlight on mode.
HOLD
The hold function freezes the reading in the display. Press the HOLD key momentarily to
activate or to exit the HOLD function.
PEAK HOLD
The Peak Hold function captures the peak AC or DC voltage or current. The meter can
capture negative or positive peaks as fast as 1 millisecond in duration. Momentarily press
the PEAK button, “PEAK” and “MAX” will display in left auxiliary display. MIN” will
display in right auxiliary display. The meter will update the dispay each time a lower
negative peak occurs. Press the EXIT button to exit the PEAK HOLD mode. Auto Power
Off feature will be disabled automatically in this mode.
DATA STORAGE
1. Set the function switch to the measurement function desired.
2. Press the STORE button to enter the STORE function. The left upper aux display
indicates the current storage location (0000 to 9999). New measurements will begin
storing into the next location.
3. Press the PEAKHOLD button to change into the initial storage number 0000. (Press it
again to change back). On the right upper aux display shows XXXX which states how
many current storage locations are used.
4. Press STORE button again to enter into recording interval time set up function.
5. The left upper aux display indicates 0000 S, which is the recording sample rate; use
the + & - buttons to select the sample rate desired (0 to 255 sec)
6. Set the sample rate to 0000 S for manual recording. In this mode, each press of the
STORE button will save one measurement reading.
7. Set the sample rate to 1 to 255 S for automatic recording. In this mode, pressing the
STORE button will start data recording at the set sample rate.
8. Press the EXIT button to end the recording session.
DATA STORAGE RECALL
1. Press STORE button for two seconds to enter into RECALL function.
2. On the left upper aux display will show XXXX, which is the current storage location.
The right aux display will show XXXX, which is the number of storage locations
currently used.
3. Press the + or — button to select the storage location. The value in that location will
be indicated in the main display.
4. Press the PEAKHOLD button once to continuously scan data from 0000 to XXXX.
Press again then scan again.
5. Press the EXIT button to end the recall session.
CLEARING MEMORY
To clear the memory of all stored data, from the OFF position, hold the EXIT button and
switch the function switch to any position. Release the EXIT button and the LCD will flash
3 times and a buzzer will beep three times. Memory is now clear.