Triggering; External Triggering; Changing The Temperature Unit; Measurement Rate Selection - Fluke 2620A User Manual

2620A, 2625A
Users Manual
Press these buttons:
To select from these
choices:

Triggering

To set the scan triggering type from the front panel, use the procedure shown in Table 3-
12.
Press these buttons:
To select from these
choices:
Note: The three trigger types signify:
"OFF" External triggering is disabled. Scan trigger is controlled by scan interval.
"ON" External triggering is enabled. A low input on the rear-panel TR terminal affects scanning as
follows:
If the instrument is in Inactive Mode, or just the Monitor Function is on, the low input enables scanning.
When the signal on the TR terminal returns to high, scanning is disabled.
If scanning is already enabled, the external trigger initiates a single scan. If a scan is already in progress,
this request is ignored.
"ALAr" An alarm condition on the monitor channel automatically triggers a scan. (External triggering is
disabled.)

External Triggering

The external trigger setting offers additional control of scan starts through a separate
trigger line on the rear panel. Refer to Chapter 5 for an in-depth discussion of external

triggering.

Changing the Temperature Unit

The displayed temperature unit can be degrees Celsius (ºC) or Fahrenheit (ºF). To switch
this setting, start with the instrument powered off, then press and hold
pressing POWER ON. After the instrument beeps and the new temperature unit is shown
in the display, release
The units setting can also be changed through the Computer Interface with the
TEMP_CONFIG command (refer to Chapter 4.)
3-16
Table 3-11. Measurement Rate Selection
RATE( )]
Table 3-12. Trigger Type Selection
TRIGS( )]
.
SLO
FAST
OFF
On
ALAr
(Completes selection
and returns to Inactive
Mode)
while