Chapter 1 Getting Started
The Front Panel Indicators at a Glance (Cont.)
1-4 Operating Guide
1
The Front Panel Indicators at a Glance (Cont.)
Indicators Description of the Indicators
When this indicator flashes, it indicates that the
Counter is triggering on the input signal. If the
input signal is too high, this indicator remains ON.
If the input signal is too low, this indicator is OFF.
When one of these indicators is lit, it indicates that
the adjacent choice (that is, 50Ω, DC, X10, or
100kHz Filter) is enabled or active. Note that when
these indicators are not lit, then the other choice
(that is, 1MΩ, AC, X1, or no filter) is active.
A lit Remote indicator indicates that the Counter is
in remote mode (Note: In the remote mode, the Save
& Print key becomes the Local key.)
If (while in remote) an error occurs, the Remote
indicator will flash. The indicator will continue
flashing until the controller has read or cleared the
error queue, or until the front panel returns to local
mode.
An unlit Remote indicator indicates that the
Counter is in local mode.
The SRQ indicator indicates that the Counter has
requested service from the controller. The SRQ
indicator will remain lit until the controller has
recognized the service request and serial polled the
Counter, or taken specific action to cancel the
request (for example, *CLS command).
100kHz
Filter
X10
Attenuate
DC
AC
50Ω
1MΩ
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