LCR-800 Series User Manual 
 
 
 
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3. PANEL DESCRIPTION 
(1). Power Switch  
Turns AC Power on or off.  
(2). Function key 一 F1 
Soft key functions as indicated on the adjacent LCD monitor.  
(3). Function key 一 F2 
Soft key functions as indicated on the adjacent LCD monitor.   
(4). Function key 一 F3 
Soft key functions as indicated on the adjacent LCD monitor.   
(5). Function key 一 F4 
Soft key functions as indicated on the adjacent LCD monitor.   
(6). MENU key 
Enters menu display mode or exits sub menu back to main menu. 
(7). Compound key   
l For making numerical entries as labeled.  
l Turns the “RANGE HOLD” mode on or off.  
(8). Compound key   
l For making numerical entries as labeled.  
l Turns the “CONSTANT VOLTAGE” mode on or off. 
(9). Compound key 
l For making numerical entries as labeled.  
l Measures the unit of Dissipation and Quality Factor in PPM. 
(Note: The models of LCR-816 and 826 do not have this function.) 
LCR-800 Series User Manual 
 
 
 
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(10). Compound key 
l For making numerical entries as labeled. 
l Selects the “INTERNAL BIAS” mode or “EXTERNAL BIAS” mode. (If 
this key function is switched to “INTERNAL BIAS” mode, the bottom 
of LCD monitor will display the “INT.B” message. If the external DC 
bias is selected, the bottom of LCD monitor will display the “EXT.B” 
message. ) 
(11). Compound key 
l For making numerical entries as labeled.  
l Turns the INTERNAL BIAS mode or EXTERNAL BIAS mode “ON” or 
“OFF”.   
(12). Compound key 
l For making numerical entries as “-“ (the negative sign).  
l Inputs the “TEST FREQUENCY”.  
(13). START (Compound key) 
l Starts measurement sequence. Normally used in the “MANU” (Triggered) 
mode. 
l Selects “AUTO” or “MANU” mode by pressing this key for 3 seconds at 
least. 
l The LCR Meters will process the measurement automatically, if the 
“AUTO” mode is selected. 
(14). ↵  key (ENTER) 
This key enables programming of all special functions, test frequency, test 
voltage, averaging, delay, and nominal value etc.  
(15).  • Symbol key 
Inputs the decimal point 
(16). Numeral key— “2”