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Model 3550 LCR Meter Instruction Manual Quick Start Instructions
Setting the Percent Comparator
To set the Percent Comparator, follow the procedure below.
The upper and lower limit for the nominal value are the same. For the threshold values, different
values for the upper and lower limit must be set. In order to proceed, the 3550 must be in the
percent comparator mode.
1. Select the Upper or Lower Limit to Enter the % Comparator Mode
To input the Nominal value, press the [HIGH] key. (The [LOW] key may also be pressed to
enter the % Comparator Set Mode)
2. Select the Nominal Value Input Mode
To input the Nominal Value, press [0] when the first digit of DISPLAY C is flashing.
3. Input the BIN No.
After selecting the Nominal Value Input Mode, use the cursor [Ź] to highlight the bin
number, and then press [1]~[9] to select the desired bin.
4. Set the Nominal Value for DISPLAY A
After inputting the bin number, use the cursor, [Ź] to highlight DISPLAY A. Enter a 5 digit
Nominal Value for DISPLAY A using keys [0]~[9]. (NOTE: The 1
st
digit, is restricted to only a
“1” or “0” setting.)
When this is complete, the decimal point will flash. Press [D.P] to move the decimal point to
the desired position. Then, use the cursor [Ź] to highlight the unit. Press the [UNIT] key
until the required unit annunciator is lit. This designates the measurement unit for the
Nominal value.
5. Input the Nominal Value for DISPLAY B
When the setting for DISPLAY A is complete, use the cursor [Ź] to highlight DISPLAY B.
Enter the 5 digits, decimal point and unit just as in DISPLAY A.
If the setting is to be a negative value, use cursors [Ź] or [Ż] to highlight the 1
st
digit of
DISPLAY B then press [-] to negate the value.
6. Completing the Nominal Value Setting
Press the [HIGH] key to finalize the Nominal Value Setting for the % Comparator.
(If the [LOW] key was pressed to enter into the % Comparator Mode then press it instead of
the [HIGH] key to exit the mode and finalize the settings.)
7. Set an Upper or Lower Limit for the % Threshold Values
To input an upper limit threshold value, press the [HIGH] key. Press the [LOW] key to set
the lower limit threshold value. Then, highlight the first digit of DISPLAY C and press [1].