9- The input a t t e n u a t o r s are switched by a so-called
" logic control c i r c u i t " so t h a t a desired range can
be selected w i t h use of a remote control device
(option).
h. A relay and F E T switch f o r range selection, controlled
by the logic control c i r c u i t , provide higher r e l i a b i l i t y
than usual r o t a r y switch direct s w i t c h i n g .
3. S P E C I F I C A T I O N S
[Meter Section]
Messurable voltages : 1 m V - 3 0 0 m V in 12ranges: 1 m V , 3 m V ,
10mV, 3 0 m V , 1 0 0 m V , 3 0 0 m V , 1 V , 3 V ,
10V, 30V, 100V, and 300V f u l l scales.
ro
.3mV-100mV in 12ranges: 0.3mV,
1 m V , 3 m V , 1 0 m V , 3 0 m V , 100mV,
300mV, 1V, 3 V , 10V, 3 0 V , and 100V
f u l l scales.J
dB : ' - 8 0 ~ + 5 0 d B
r
- 9 0 ~ + 4 0 d B J (0dB=1V)
d B m : - 8 0 ~ + 5 2 d B m
r
- 9 0 ~ + 4 2 d B m J
( 0 d B m = 1 m W , 6 0 0 O )
E r r o r : W i t h i n ± 3 % o f f u l l scale a t 1kHz.
Frequency response : ± 1 0 % a t 5 H z - 1 M H z ,
± 5% a t 10Hz-500kHz and
± 2 % a t 2 0 H z - 1 0 0 k H z a s
referenced to 1kHz response.
Input impedance : 1 0 M O ± 5%, w i t h less than 45pF
parallel capacitance.
Durable input voltage : 500V ( D C + A C peak)
1V to 300V
r
100V
J
range
100V ( D C + A C peak)
1mV
ro
.3mVJ to 300mV range