Tegam 252 - Page 22

Trying further to investigate this reading, you down range from the 20mS range to the 2000µS range.
The display blanks:
The display blanks because, while ranging from 20mS to 2000µS, the capacitance range changed from
2µF to 200nF. Since 0.82µF is too large to measure on the 200nF range, an overload occurs and the
display blanks.
2.2.5 Range Selection
Measurement ranges are selected by a seven-position rotary switch. See Figure 2-7 for full-scale range
values. For maximum display resolution and accuracy, select the range that gives the largest on-
scale reading. The position of the range switch indicates the readout units (i.e. µH, mH, H, etc.). If either
the reactive or resistive value of the unknown exceeds the range selected, the display will blank.
Figure 2-7 Range Chart
2-12
1.999
D
2000 m
S200 mS20 mS2 mS200 µS20 µS2 µS
G
p
2000 k
Ω200 k Ω20 k Ω2 k Ω200 Ω
s
R
2
Ω 20 Ω
6
54
32
1
0
200
µF20 µF2 µF200 nF20 nF2 nF200 pF
C
p
s
L
Values Full Scale
200 H20 H2 H200 mH20 mH2 mH200 µH
Ranges