Peak Hold; Auto Power Disable; Rs232 Pc Serial Interface - Lutron Electronics EMF-819 Operation Manuals

7-8 Peak Hold

Press the " Peak Hold Button " ( 5-7, Fig. 1 ) once to latch
peak value on the display , press once again to exit
the peak hold function.
8. AUTO POWER OFF DISABLE
The instrument has built-in "Auto Power Shut-off"
in order to prolong battery life. The meter will switch
off automatically if none of the buttons are pressed
within 10 min.
To de-activate this feature, Select the memory record
function during measurement, by pressing the
" RECORD " button ( 5-4, Fig. 1 ).

9. RS232 PC SERIAL INTERFACE

The instrument has RS232 PC serial interface via a 3.5
mm terminal ( 5-12, Fig. 1 ).
The data output is a 16 digit stream which can be
utilized for user's specific application.
A RS232 lead with the following connection will be
required to link the instrument with the PC serial port.
Meter
(3.5 mm jack plug)
Center Pin............................. Pin 4
Ground/shield.......................... Pin 2
PC
(9W 'D" Connector)
Pin 5
12
2.2 K
resister