22
2.4.10 Bar Graph
A high resolution analog bar graph is provided for visual feedback when
performing optical alignment tasks. This bar graph uses the message display
area and moves from left to right with increasing display value, and reaches
full scale when the digital display reaches full scale.
The , keys can be used to zoom the bargraph in and out. Press to
zoom the bargraph into a 10x magnification which auto-centers with each
subsequent press. Press to zoom out to normal 1x magnification.
Table 16. BARGRAPH Operations.
Menu Function
Keypad Commands
Associated Remote Commands
BAR GRAPH
Edit BARGRAPH
BARGRAPH, BARGRAPH?
ON, OFF
2.4.11 Tone
The 2835-C has a speaker that can emit a short tone or tick to indicate when a
peak or pulse is detected in P-P or PULSE measurement modes for the display
channel. The audible output is enabled or disabled via the TONE menu
function. TONE is not available in INTG measurement mode.
Table 17 – TONE Operations.
Menu Function
Keypad Commands
Associated Remote Commands
TONE
Edit TONE
ON, OFF
TONE, TONE?
2.4.12 Detector Switch Position
Some Newport Energy detectors have a switch that sets an electronic decay
time constant to optimize operation for various pulse repetition rates. As this
adjustment effects the responsivity of the detector, the Model 2835-C must be
informed of the detector’s switch setting. The available detector switch
settings are: SHORT, INTERMEDIATE and LONG. The 2835-C accounts for the
switch setting through the DET SWITCH POS function.
Table 18 – DET SWITCH POS Operations.
Menu Function
Keypad Commands
Associated Remote Commands
DET SWITCH POS
Edit SWITCH POS
DETSW DETSW?
S, I, L
2.4.13 Remote Setup
The Model 2835-C provides both RS-232 and IEEE-488 computer interfaces as
standard features. Each interface requires that certain parameters be set.
Remote interface setup and commands are discussed in Section 4, Computer
Interfacing.
Table 19 – REMOTE SETUP Operations.
Menu Function
Keypad Commands
Associated Remote Commands
GPIB ADDR dd
Edit GPIB ADDR
dd
None
BAUD RATE dddd Edit BAUD RATE
1200,
None
2400, 4800, 9600, 19.2K
RS-232 ECHO
Edit RS-232 ECHO
ECHO, ECHO?
ON, OFF
ON, OFF
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