ETS-Lindgren HI-1710A Microwave Oven Survey Meter - Manual (Page 36)

36 Menu Options, Settings, Command Set www.ets-lindgren.com
 STIM —Applies and displays a DC voltage to the input of the RF signal
circuitry; value should be between 2.44 and 4.88. Readings outside
this range indicate a fault in the HI-2623 probe/preamplifier.
 TEST —Voltage at the analog output jack; value should be between
3.80 and 4.20 volts.
If an error occurs in any of the parameter readings, the
parameter screen displays and the erroneous reading
flashes. Turn the HI-1710A off, correct the problem, and
then turn it on again.
PEAK HOLD
Captures and holds the highest leakage reading displayed.
Menu Option
Setting
Serial Port
Command
ON P1
OFF P0
— P?
 While in Peak Hold the bar graph on the display shows the current
instantaneous RF reading, without filtering. A bar graph segment
remains lit to indicate the relative location of the peak reading. The
bar graph display responds very rapidly and will show stirrer/turntable
modulation as well as minima and maxima of leakage around the
microwave oven periphery.
 Because of the fast, unfiltered, response of the bar graph display, the
digital peak reading may lag behind the bar graph indication,
depending on the filter factor chosen. When the instantaneous RF
indication on the bar graph display is greater than the reading on the
digital display, the bar graph segment proportional to the digital reading
is unlit. In this way the Peak Hold mode of the meter can be used to
observe the effects of the various digital filters on fast changing RF
inputs.
 In the normal mode (not Peak Hold), the bar graph display follows the
filtered display reading.