Front Panel Operation
3-63
NOTE
Front panel TRIG key (see MANUAL) is
active with the Trigger Link selected.
Pressing the TRIG key passes operation
into the measure layer.
To select the Trigger Link from the SELECT SCAN
SOURCE menu, place the cursor on TRIGLINK and press
ENTER. The following menu is displayed:
SELECT INPUT LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the presently selected in-
put line.
To select a trigger input line for the Model 2001, place the
cursor on the desired line number and press ENTER. The fol-
lowing message is displayed:
SELECT OUTPUT LINE
#1 #2 #3 #4 #5 #6
The position of the cursor indicates the presently selected
output line.
To select a trigger output line for the Model 2001, place the
cursor on a different line number and press ENTER. The in-
strument returns to the SELECT SCAN SOURCE menu.
Note that you cannot use the same trigger line for both input
and output.
TIMER: Use the timer feature to control the time interval
between scan sequences when scanning. The timer can be set
for an interval from 0.001 seconds (1msec) to 999999.999
seconds with 1msec resolution.
After a scan sequence is triggered to start, the next scan se-
quence starts at the end of the programmed timer interval. If
however, the programmed timer interval is shorter than the
time it takes to complete a single scan sequence, the next
scan sequence does not start until the previous one is done.
NOTE
Front panel TRIG key (see MANUAL) is
active with the timer selected. Pressing the
TRIG key after the completion of a scan
sequence starts the next scan sequence
(assuming the Model 2001 is programmed
for another scan sequence; see COUNT).
Perform the following steps to use the timer:
With the SELECT SCAN SOURCE menu displayed, place
the cursor on TIMER and press ENTER. A message indicat-
ing the presently set time interval (in seconds) is displayed:
INTRVL = 000001.000
1. To retain the displayed timer interval, press EXIT or
ENTER. The instrument returns to the SELECT SCAN
SOURCE menu.
2. To set a different time interval, use the cursor keys (
and ) to select the digits, and the RANGE ▲ and ▼
keys to increment and decrement the digits. Press EN-
TER when done to return to the SELECT SCAN
SOURCE menu.
HOLD: When HOLD is selected, the scan source is sup-
pressed. As a result, operation does not pass into the measure
layer until HOLD is cancelled by selecting one of the other
scan source selections. Select HOLD from the SELECT
SCAN SOURCE menu by placing the cursor on HOLD and
pressing ENTER. The instrument returns to the SETUP
SCAN LAYER menu.
DELAY
This delay is used to hold up operation in the scan layer. Af-
ter the scan event occurs, the instrument waits until the delay
period times out (0 to 999999.999sec) before proceeding to
the measure layer.
COUNT
This menu item defines the number of times operation re-
turns to the scan layer. With the SETUP SCAN LAYER
menu displayed, select this menu item by placing the cursor
on COUNT and pressing ENTER. The following menu is
displayed:
NUMBER OF SCANS
INFINITE ENTER-SCAN-COUNT
INFINITE: Use this selection to continuously return opera-
tion to the scan layer. Select continuous scanning from the
SCAN COUNT menu by placing the cursor on INFINITE
and pressing ENTER. The display returns to the SETUP
SCAN LAYER menu.
ENTER-SCAN-COUNT: With this selection, the user de-
termines the number of times operation returns to the scan
layer. You can program the Model 2001 to scan up to 99999
times. Perform the following steps to enter the scan count:
1. With the SCAN COUNT menu displayed, place the cur-
sor on ENTER-SCAN-COUNT and press ENTER. A
message indicating the present scan count is displayed:
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