Peakmeter 11528G Series
Getting started Page 5-3
5.5. Connecting to a power supply
The 11528G peakmeter requires a single voltage supply (+24 V DC) for
operation.
5.6. Audio in- and output
The digital audio in- and outputs of the 11528G peakmeter are balanced and
floating. They are internaly terminated with 110
Ω
. The termination can be
changed to High-Z by the use of an internal jumper.
5.7. External function control
External function control can be achieved by the use of pushbuttons or
switches. External functions control of the 11528G peakmeter should be
operated by the use of the switching potential (0 V) at pin 19a or c.
You can also connect the equivalent switching inputs of multiple RTW
peakmeters of same kind to single lines so that only one switch per
function is required for multichannel display.
5.8. Mode switches and LED functions
GAIN KEY - The use of this pushbutton or its equivalent external
function control boosts the input sensitivity by +40 dB. The use of his
function is stored as a flag in memory.
GAIN LED - Indicates the use of the gain function. Recalling the memory
this LED will also indicate a possible use of the gain function since the
last memory reset.
MEMO-KEY - The use of this pushbutton or its equivalent external
function recalls the highest level value, the most negative correlation
reading and a possible use of the gain mode since the last time a
memory reset has been proceeded. Please keep attention to the fact
that memory accuracy can be affected by interferenced signals (ESD-
or Burst). This may cause misreadings from the memory or meter if you
are using the instrument in an interferenced environment. A specific
measurement of maximum level should be repeated if interference is
suspected.
RESET-KEY- The use of this pushbutton or its equivalent external
function resets the memory.
10 ms-LED - The red 10 ms-LED placed on the right resp. above the top
of the lower resp. right bargraph display in normal mode indicates the
use of the 10 ms integration time for the additional highlighted bargraph
(see Fig. 4-2, example 1). If this LED is OFF the highlighted bargraph
reads the loudness function (see Fig. 4-2, example 2). However when
the 10 ms only external function control (see section 5.4, pin 16a) is
activated the LED is lighted independently from the position of the L/10
ms slide switch (see Fig. 4-2, example 3).
Connections:
Page 4-2.
Connections:
Page 4-2.
Internal jumper:
Page 6-1.
Connections: Page 4-2.
Connections: Page 5-2
Examples: Fig. 4-2
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