Hameg HM8131-2 User Manual

53
Subject to change without notice
Master – Slave operation
Up to 3 instruments may be synchronized this way. In the menu
“MULTI-DEV SYNC“ [Sync] must be chosen. The defi nition
whether an instrument should be master or slave is done in
“Device confi guration“ where “MS–” or “SL+“ designates master
resp. slave.
Example: Switching from master to slave
In place of Fr for free-running the basic menu will
HINT
show Mt for master and SL for slave.
STOP
Selection of as well as leaving the synchronous
master-slave mode is only possible in the menu
“Working mode“ by calling “Sync“.
If it is desired to operate several generators with
the same frequency, all generators must use the
same reference frequency. In spite of the high
accuracy of the individual oscillators synchronisati-
on is indispensable if true coincidence is required.
Synchronisation my be achieved either by using an
external reference (10 MHz) for all generators or by
naming one as the master reference and synchro-
nize the others (slaves) to this one. Synchronization
will guarantee identical phase between all genera-
tors, but the phase or time difference between the
synchronization signal and the output signals can
HINT
not be infl uenced.
Main menu 1 and its functions
1
0
MH
z-
R
e
f
erenz
Mt: 1.0000000 kHz
 Sin Tri Sqr -->
Switching from Master to Slave
** MULTI-DEV SYNC **
Master Pulse
 Slave
Sl: 1.0000000 kHz
 Sin Tri Sqr -->
** MULTI-DEV SYNC **
 Master Pulse Slave
** WORKING MODE **
Cnt Trg Gat
 Sync
*** MAIN MENU 1 ***
Sweep Arb Mode -->
Push button [Prev] twice
*** MAIN Menu 1 ***
Sweep Arb Mode -->
** WORKING MODE **
Cnt Trg Gat  Sync
** MULTI-DEV SYNC **
 Master Pulse Slave
*** MAIN Menu 1 ***
Sweep Arb Mode -->
** WORKING MODE **
Cnt Trg Gat  Sync
** MULTI-DEV SYNC **
Master Pulse Slave
*** MAIN Menu 1 ***
Sweep Arb Mode -->
** WORKING MODE **
Cnt Trg Gat  Sync
** MULTI-DEV SYNC **
Master Pulse  Slave
*** MAIN Menu 2 ***
Mod Phi Option <--
*** MAIN Menu 2 ***
Mod Phi Option <--
** OPTIONS MENU 3 **
<-- Ref Disp -->
** OPTIONS MENU 3 **
<-- Ref Disp -->
*** MAIN Menu 2 ***
Mod Phi Option <--
Phase : 120.0 deg
- val + < cur >
FREQUENCY REFERENCE
 Int Ext out:on
FREQUENCY REFERENCE
Int  Ext
Master Slave
1. Definition of master und slave(s)
2. Connect all terminals[19] 10MHz IN/OUT
of master and slaves
3. Set reference frequency at terminal[19]
4. Connect TrigOut[18] of master to TrigIn[2]
of slave(s)
5. Set desired phase on slaved generators
6. Generate a trigger pulse from the master in
order to synchronize all. This can be a trigger
pulse into terminal TrigIn[2], of the master
or a pulse generated by pushing button Pulse
or a trigger pulse via an interface.
Internal reference fre-
quency programmed as output
from terminal[19] 10MHz
IN/OUT
External reference fre-
quency programmed as
input to terminal[19]
10MHz IN/OUT als Input
10 MHz-Referenz
Steps necessary to ensure synchronization
of master and slaves:
Functional description of master – slave operation
Master – slave operation means defi ning the internal oscillator
frequency of one generator (master) as the reference for the
others (slaves). All slaves deliver signals identical to that of the

Hameg HM8131-2 Specifications

General

Brand	Hameg
Model	HM8131-2
Category	Measuring Instruments
Language	English