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INPUT FREQUENCY CALCULATION
The meter determines the input frequency by summing the number of falling
edges received during a sample period of time. The sample period begins on the
first falling edge. At this falling edge, the meter starts accumulating time
towards Low Update and High Update values. Also, the meter starts
accumulating the number of falling edges. When the time reaches the Low
Update Time value, the meter looks for one more falling edge to end the sample
period. If a falling edge occurs (before the High Update Time value is reached),
the Rate display will update to the new value and the next sample period will
start on the same edge. If the High Update Time value is reached (without
receiving a falling edge after reaching Low Update Time), then the sample
period will end but the Rate display will be forced to zero. The High Update
Time value must be greater than the Low Update Time value. Both values must
be greater than 0.0. The input frequency calculated during the sample period, is
then shown as a Rate value determined by the scaling calculation.
5.3 MODULE 3 - D ISPLAY
AND
F RONT P ANEL K EY
P ARAMETERS ( ????? )
3-dSP
PAR
PARAMETER MENU
Pro
SEL-En
Front Panel
Display Select
Enable
rSt-En
Front Panel
Counter
Reset Enable
ScroLL
Display
Scroll
Enable
d-LEV
Display
Intensity
Level
CodE
Programming
Security
Code
FCS
Factory
Service
Operations
FRONT PANEL DISPLAY SELECT ENABLE (SEL ? )
PROGRAMMING SECURITY CODE
?????? ?
? ???
??
???
????
?
?
???
?? to ? ???
The ??? selection allows the SEL ? key to toggle through the enabled
displays.
FRONT PANEL COUNTER RESET ENABLE (RST ? )
The Security Code determines the programming mode and the accessibility
of programming parameters. This code can be used along with the Program
Mode Lock-out ( ?????? ) in the User Input Function parameter (Module 1).
Two programming modes are available. Full Programming mode allows all
unit parameters to be viewed and modified. Quick Programming mode permits
only user selected values to be modified, but allows direct access to these values
?????? ?
? ???
??
???
? ? ? ??
???? ?
???? ?
????
??????
without having to enter Full Programming mode.
Entering a Security Code from 1-99 enables Quick Programming mode, and
displays a sublist to select which values appear in the Quick Programming
menu. All of the values set to ??? in the sublist are accessible in Quick
The ??? selection allows the RST ? key to reset the selected counter(s). The
shaded selections are only active when Counter B is enabled (Dual Count Mode
or batch counter).
Programming. The values include Setpoints ( ???? , ???? ), Output Time-outs
( ?????? , ?????? ), Count Load value ( ?????? ) and Display Intensity ( ????? ).
Programming any Security Code other than 0, requires this code to be entered
at the ???? prompt in order to access Full Programming mode. Quick
Programming mode, if enabled, is accessed before the ???? prompt appears.
DISPLAY SCROLL ENABLE
?
??
not
1-99
Programming
??????
?????? ?
?? ???
The ??? selection allows the display to automatically scroll through the
enabled displays. The scroll rate is about every 4 seconds.
USER INPUT USER INPUT SECURITY MODE WHEN “PAR”
FUNCTION STATE CODE KEY IS PRESSED
0 Full Programming
Quick
______
100-999 ???? prompt
FULL PROGRAMMING
MODE ACCESS
Immediate Access
After Quick Programming
with correct code entry
at ???? prompt *
With correct code entry
at ???? prompt *
?????
?
?
?
DISPLAY INTENSITY LEVEL
?? to ? ?
??????
Active
Not Active
0
1-99
100-999
0-999
Programming Lock
Quick
Programming
???? prompt
Full Programming
No Access
No Access
With correct code entry
at ???? prompt *
Immediate Access
Enter the desired Display Intensity Level (1-5). The display will actively dim
or brighten as levels are changed.
10
* Entering Code 222 allows access regardless of security code.
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