BRUEL & KJAER 2006 - Page 6

Attenuotor Probe
~
-=C]
mJ
~
s
a
b c
d
'- H ~d>
Fig. 1.1.
Input Probe and 60 dB
Attenuator a, b and c: Adaptors.
extension of the input probe (see Fig . 1.1) . The connection from the input
probe to the Voltmeter consists of a multicore cable, which also supplies the
necessary voltage for the probe. At the terminating end, the cable is supplied
with a BNC-connector. The signal pin of the Probe itself can be unscrewed
and replaced with a BNC conversion plug, for instance for calibration purposes
or with a 50 Q termination, see OPERATION, p. 14.
;:::,!.f Vol t
.t f A)]
; ' -..::::.~
i " "'i Ua tor
Bott.
Check
1 Mod. 1
L _ ___ __ ~te_r __ ~e~------------------ _j
"' '""9
Fig. 1.2. Heterodyne roltmeter Type 2006. Block diagram.
4