Rohde & Schwarz 1352.1313.12, User Manual

Page: 11 / 27

Instrument tour
R&S
®
AMN6500
11 User Manual 1352.1213.02 ─ 01
L1 phase indicator (3)
Indicator showing the correct assignment of L1 and N to the measurement channels.
LED "L1" lights up if the polarity of the mains plug is correct. See also
Chapter 4.3,
"Connecting to power" , on page 15.
ON LED (4)
This LED shows that the R&S AMN6500 is powered up.
Remote LED (5)
This LED shows that a remote control function is active. See also Chapter 5, "Remote
control" , on page 23.
This LED goes off automatically when all remote control functions are inactive or the
port is not occupied.
L1, N (6), (7)
The measurement path is selected manually using the "L1" and "N" keys. When either
key is pressed, it releases the other. They are both locked when the "Remote" LED is
lit. The associated LEDs always indicate the active path, even when this has been
selected using the remote control. See also
Chapter 5, "Remote control" , on page 23.
150 kHz HP (8)
With this toggle key, a 150 kHz highpass filter can be switched into the measurement
path. This enables interference voltages in the low-frequency range, e.g. from switch-
mode power supplies, to be suppressed. The associated LED lights up when the filter
is active. This key is locked when the "Remote" LED is lit. See also
Chapter 5,
"Remote control" , on page 23
Limiter (9)
With this toggle key "Limiter" the internal protection diodes at the measurement output
"RF Output" can be turned off. The protection diodes act as an input voltage limiter
(transient limiter) attached before the "RF Output" output to protect measurement
equipment from high positive and negative voltage spikes (>6 V). By turning off the
protection diodes higher interference voltages can be measured.
The "Limiter ON" LED lights up when the protection diodes are active.
The default setting, e.g. after switching on, is "ON".
The limiter function is only locally switchable by the toggle key "Limiter".
CAUTION! When the protection diodes are turned off, ensure that the connected mea-
surement devices cannot be damaged by high voltage spikes.
Artificial hand connector (10)
The "Artificial Hand" enables the effects of the human hand to be simulated. Metal
housing parts of the equipment under test that are usually touched with the hand can
be connected to this jack. The hand simulation consists of connection in series of a
510-
Ω
-resistor and a 220-pF-capacitor. The jack is a 4-mm-terminal clamp. See also
Chapter 4.9, "Sample measurement" , on page 21 for more information.
Front panel tour