The Front Panel At A Glance - HP 53131A Operating Manual

14
NOTE
Chapter 1 Getting Started

The Front Panel at a Glance

The Front Panel at a Glance
1
5 3131 A
225 MHz
UNIVERSAL COUNTER
Period Freq +Wid -Wid Rise
MEASURE
Remote
Freq &
Time &
Period
Ratio
SRQ
POWER
Other Gate &
Meas ExtArm
Utility Local
Recall Save &
Utility Menu:
Hold at power up
Print
10
8 9
Note: Unit shown with Option 030.
1 Measurement function menu keys
2 Limits menu keys
3 Math menu keys
4 Sign (+ or ) selection toggle key
5 Data Entry/Select (or arrow) keys
6 Enter numeric data (terminate) key
7 3.0/5.0/12.4 GHz RF input channel
(optional)
8 Utility menu key (Hold during
power-up to access Utility functions.)
It is normal operation for the fan in the Counter to continue to run after
the Counter is placed in Standby mode. Power to the timebase is
continuous to maintain long term measurement reliability, and the fan
helps maintain timebase temperature stability.
1-2
2 3
MHz
µs
Gate
Fall Time Ch 1 Ch 2 Ch 3 Limit ExtRef
LIMITS MATH CHANNEL 1
Trigger
Uppr &
Scale &
Sensitivity
Offset
Lower
50
1M
Limit Stats
Modes
DC
AC
Run Stop/
X10
Single
Attenuate
11 12
9 Recall, Save and Print menu keys
10 Gate and External Arm menu key
11 Measurement control keys
12 Channel 1 Trigger/Sensitivity menu
key and input conditioning keys
13 Channel 2 Trigger/Sensitivity menu
key and input conditioning keys
14 Calibration menu key (Hold Scale &
Offset key during power-up to access
Calibration functions.)
4 5 6 7
CHANNEL 3
100 MHz 3 GHz
+ / –
Enter
Damage Lvl:
5V rms MAX.50
CHANNEL 2
Trigger
Sensitivity
50
1M
!
DC
Damage Lvl: Damage Lvl:
AC
5V rms MAX.50 5V rms MAX.50
100kHz X10 100kHz
Filter Attenuate Filter
13
Operating Guide
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