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5
5. Liquid crystal display
5.1 Digital display
The digital display (9) shows the measured value with correct location of decimal
point and sign. The selected measuring Unit(12)and the function(11)
are simultaneously displayed. When measuring DC quantities, a minus sign
appears in front of the digits, when the positive pole of the measured
quantity is applied to the"
"input terminal. When upper range limit 3099
(on the range :1999),is exceeded then"OL"is displayed.
With V and Ω measurements, the digital display is updated two times
per second.
5.2 Analog indication
The analog indication with pointer presentation gives the dynamic
response of a moving-coil movement and is updated 20 times per second,
when measuring V and
Ω. Analog indication is of particular advantage
when observing variations of measured values and for calibration
procedures.
The analog indicator has its own polarity indication. When measuring
DC quantities, the analog scale(15)
has a negative range of 4 scale
divisions so that variations of the measured values around" zero"canbe
observed exactly. When the measured value exceeds the range of
indication, the left triangle(16) is shown before the polarity of the analog
indicator switches over after approximately 0.7s.The over range indication
on the measuring range(>3099 digits,on the range >1999)is shown
by the right triangle(13).
The instrument is provided with user selectable Backlight for taking
measurements in poor lighting conditions/darkareas.
Switching the Backlight ON
By pressing "AUTO/MAN"and"HOLD" keys simultaneously
the Backlight can be switched ON.
Switching the Backlight OFF
By pressing "AUTO/MAN" and "HOLD" keys simultaneously
the Backlight can be switched OFF.
F
30 nF 300 nF 3 μ F 30 μ F 30 nF...
Hz
300 Hz 3 KHz 30 KHz 100 KHz 300 Hz...
300A 1500A 300A...
A , A
1500V
5.3 Backlight (Optional)