Roper 4411-0046 Automobile Accessories User Manual


 
338 WinView/32 Manual Version 2.4.M
Bracket Pulsing On/Off radio buttons:
Selecting ON activates the MCP bracket
gating of the PI-MAX detector. This technique enhances the PI-MAX
intensifier’s on/off ratio in UV measurements. The width and delay are adjusted
automatically to always bracket the photocathode gate pulse. Keep in mind that
the on/off switching of the MCP bracket pulsing is slow, taking about 500 ns to
turn on and 200 ns to turn off. Selecting OFF switches off bracket pulsing of the
PI-MAX detector. Photocathode gating continues to be provided.
Anticipator On/Off radio buttons:
The Anticipator allows Bracket Pulsing with
repetitive external trigger sources. What it does is measure the period of the
trigger and then time the bracket-on pulse to lead the photocathode gate pulse by
the set interval. For proper operation, the bracket-on pulse must begin at least
500 ns before the gate pulse.
The minimum Anticipator Time is 500 ns (or the minimum PI-MAX bracket
lead time from EEPROM)
minus
the minimum Pulse Delay time. For example,
with a minimum Pulse Delay time of 200 ns, the software would automatically
set the Anticipator time to 300 ns.
Burst On/Off radio buttons:
For Burst operation, in which each trigger initiates a
burst of gate pulses, select Burst Mode
On
and set the number of pulses in the
burst and their period.
Note:
Bracket Pulsing the burst brackets an entire burst but not the individual
pulses within a burst.
Control Buttons:
Download to PTG:
Clicking on this button immediately sends all current dialog
values to the PTG. Selecting
Download to PTG
also changes the name on the
Cancel
button to
Close
, indicating that canceling is no longer an option.
OK:
Click on this button to close the dialog. Selecting this button does
not
automatically program the pulser/timing generator. To program the selected
values into the timing generator you must click on
Download to PTG
.
Cancel:
The
Cancel
button exits the dialog without saving any settings. The pulser
is reprogrammed with the new values when you execute
Download to PTG
.
Selecting
Download to PTG
also changes the name on the
Cancel
button to
Close
, indicating that canceling is no longer an option.
Help:
Click on this button to open the online help for this window.