B&K Precision 1856D - Manual - Manual (Page 17)

17
3-5. Total Measurements
The totalize mode is used to count the total number of events occurring during a
specific time period. The maximum frequency is 30 MHz.
a. With the FUNCTION switch, select the TOTAL A mode. Gate and unit
settings are ignored.
b. Apply the signal to be measured at input A. The accumulated counts will
be displayed continuously to a maximum count of 999999999. If this is
exceeded, the overflow message, OF, will be displayed.
c. The ATTENUATOR, LPF, and COUPLING switches operate the same as
they do in the frequency measurements modes.
NOTE
THE HOLD SWITCH MAY BE USED TO LATCH THE DISPLAY. THE
COUNTER,
HOWEVER, WILL CONTINUE TO INCREMENT. WHEN THE HOLD SWITCH IS
RELEASED, THE UPDATED COUNT WILL BE DISPLAYED.
3-6. RPM (Revolutions Per Minute) Measurement
a. Apply the signal to be measured at input A. The count will be
displayed as revolutions per minute (RPM). Maximum count is 999999999.
If this is exceeded, the overflow message, OF, will be displayed.
b. The ATTENUATOR, LPF, and COUPLING switches operate the same as
they do in the frequency measurements modes.
3-7. Use of RS-232C Serial Interfacing
1) Hardware/Software Requirements
IBM PC/XT/AT or compatible computer
Microsoft Windows
Serial port for connection with counter
2) Output Data Formats