User Manual

-8-
No.SFOD-OML0002-A
■Definition and terminology
Terms Meaning
Auto power-OFF (function)
A function that turns off the power supply automatically when no
buttons are pressed for 5 minutes after the power supply is turned on.
A
Auto power-OFF extension (function) A function that extends the time of auto power-off to 15 minutes.
Back light A light that makes the display visible in a dark environment.
Battery low display (function)
A function that warns that the battery is running out by showing “L”.
The display has two stages depending on the amount of battery left.
Refer to “Battery low display function” on page 13.
B
Bottom display (mode)
The minimum charged potential obtained since entering bottom
display mode.
Display accuracy
A value which shows the deviation between the displayed charged
potential and the actual charged potential.
D
Display unit change (function)
A function that automatically changes the minimum display unit in
relation to charged potential.
F
F.S.
(Full Span or Full Scale)
Abbreviation of full span or full scale, which means the maximum
fluctuation range. In this product, it is calculated to +20 - (-20) = 40 kV
because the rated charge is -20 kV to +20kV.
(Ref.: 1%F.S.=40×0.01=0.4 kV)
Measuring distance
The distance from the measured target to the head of the sensor.
Refer to “Procedure” on page 10. The rated measuring distance is 50
mm. The display shows the charge amount range for a 50 mm
measuring distance. Take the indication on the label on the sensor as
a reference.
M
Minimum display unit
The minimum unit that can be displayed on the LCD.
0.1 kV for ±1 to ±20 kV
0.01 kV for 0 to ±0.99 kV
Operating humidity range The ambient humidity range in which the product can be used.
O
Operating temperature range The ambient temperature range in which the product can be used.
P
Peak display (mode)
The maximum charged potential obtained since entering peak display
mode.
R
Rated charge amount range
The charge amount range in which the product can measure
satisfying its specifications. (-20 kV to +20 kV)
Storage humidity range
The humidity range in which the product can be stored without
damage with the power supply off.
S
Storage temperature range
The temperature range in which the product can be stored without
damage with the power supply off.
Z
Zero clear (function)
A function to calibrate the display to zero.
The calibration range is ±5%F.S. of default setting.