4-36
Model 3550 LCR Meter Instruction Manual Operating Instructions
The Comparator cont’d:
Absolute Value Settings
NOTE: A condensed version of this procedure can be found in the “Quick Start Section”
1) Make sure that panel 1~9 is selected. Do this by pressing the [0~9] key until the desired panel
# appears on the Panel LED. Press [SHIFT] ĺ [7] to access the Comparator Functions Mode.
Either a flashing “0” or a “1” will appear on DISPLAY B. The meaning of the numbers is as follows:
0: Absolute Value Comparator Function
1: Percent Comparator Function
To change the flashing digit, press [0] ĺ [ENTER] to call the absolute comparator mode and
return to the measurement mode.
2) In the measurement mode, press the [LOW] key in the Comparator Limit Set Panel. Make sure
that a panel number from 1~9 is selected otherwise the comparator [HIGH] and [LOW] keys will
be disabled. The [LOW] LED will light. The BIN segment LED will flash the numeral “1”. Press a
numeric key [1]~[9] to define the bin number.
3) Press the [CURSOR Ź] once. This will cause the 5
th
digit if DISPLAY A to flash. Type in the
comparator low limit value using the [0-9] keys and the [CURSOR Ź] or [CURSOR Ż] keys to
navigate between the 1
st
and 5
th
digits.After digits 1 through digit 5 has been set, press the
[CURSOR Ź] key until the decimal point begins to flash. Press the [DP] key until the decimal point
is in the desired position. Then press the [CURSOR Ź] key once again to set the units of measure.
Units are defined by pressing the [UNITS] key until the desired annunciator illuminates.
6) After the units for the low limit (DISPLAY A) have been selected, press the [CURSOR Ź] key.
The 5
th
digit of DISPLAY B will begin to blink indicating that a value can be entered for the high
comparator limit.
7) Enter the values for the DISPLAY B low comparator limit in the same manner as performed for
the DISPLAY A low limit.
NOTE: If the comparator function for DISPLAY A or DISPLAY B is not required, press the [IGNORE]
key while the display is active and the comparator for that display will be disabled. A disabled
display will show a “-----“ in place of a numerical value.
8) To set the high value limit for the comparator press the [HIGH] key located in the Comparator
Limit Set panel. The comparator high limit set mode is indicated when the [HIGH] LED lights.
Repeat steps 3-7 to set the comparator’s high limit values.
9) This completes setting the values for BIN #1. To set the high and low limits of the remaining
BINs return to step #2. When the BIN LED is flashing select a BIN number from 1-9 by pressing
the [1]-[9] keys and continue with the procedure.
NOTE: The BIN functionality is expressed as:
LOWBINHIGH
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