Specifications

Operating Manual SEFRAM 4451

M4451 A00

Trigger Menu

F1: MAN - Selects manual as the trigger source. Pressing the MAN TRIG key generates

the

trigger. In the Gate trigger mode, the pulse is generated as long as the key is being pressed.

F2: INT - Selects the internal trigger generator as the trigger source. Change the internal

trigger rate displayed with the rotary input knob or numerical keys. The rate has a range of

100ns to 99.99s, although the minimum value is limited by the value of the period in that

the rate cannot be less than the period.

Internal Trigger

F3: EXT - Selects the external trigger signal as the trigger source. The trigger source is

supplied through the TRIG IN connector.

F4: LEVEL/SLOPE - Two parameters are related to external trigger source operation.

These are LEVEL and SLOPE. The Level determines at what voltage level the external

signal will be recognized as a trigger. At level less that this, no pulse will be generated. The

Slope determines whether the positive or negative edge of the trigger signal will trigger the

pulse

3.6.5 SETUPS Menu

The pulse generator can store the current front-panel settings, called a setup, into one of 99 storage buffers.

When you recall a setup, the pulse generator restores the front-panel settings to those that you stored in the

selected buffer. Because it is impossible to 100% guarantee against loss of stored data, you should maintain

a record of the data stored in memory so that you can manually restore such data, if necessary.