Laurel Electronics LAUREATE SERIES COUNTER_TIMER User Manual
Page 29
TOTAL A-B UPDN is the same as Total A, Total B except that Total A is displayed as
item 2, Total B is displayed as item 3 and the difference of A minus B is displayed as
item 1. Decimal point 1 applies to both A and B and decimal point 2 applies to the sum
of A and B. The resolution of the sum is determined by setting the multiplier (Resolution)
from .00001 to 100000.
BURST measures the frequency of a burst of pulses from channel A as item 2, and total
number of bursts as item 1. Decimal point2, scale2 and offset2 apply to total and
decimal point1, scale1 and offset1 apply to rate. Gate time must be set greater than
the minimum frequency of the burst frequency and less than the minimum time between
bursts. Time out is set to the maximum value.
TOTAL A AND RATE B displays total of channel A as item 1, and rate of channel B as
item 1. Decimal point2, scale2 and offset2 apply to total and decimal point1, scale1 and
offset1 apply to rate. Total may count down from an offset value by entering a negative
scale factor. Rate and total of a single input may be displayed by tying channel A and
B inputs together.
TOTAL A AND B UP/DOWN CONTROL displays total of channel A as item 1. Decimal
point1, scale1 and offset1 apply to total. Up/down counting is controlled by the input
level of channel B. The maximum input frequency on A that can be counted is 250 kHz,
or a minimum of 4 uS between pulses. If the menu item SLOPE is set to 0 for Channel
B (Digit 6) then a low level on the B input causes Channel A to count Up and a high level
on the B input causes Channel A to count Down. If the SLOPE of Channel B is set to
1, the opposite occurs.
TOTAL A AND B INHIBIT displays total of channel A as item 1. Decimal point1, scale1
and offset1 apply to total. The input signal to be counted is applied to Channel A and
the Inhibit control signal to Channel B. The maximum input frequency that can be
counted is 2 MHz or a minimum of 0.5 uS between pulses. If the menu item SLOPE is
set to 0 for channel B (Digit 6) then a low level on the B input allows counting of the
Channel A input signal and a high level on the B input inhibits counting. If the SLOPE
of Channel B is set to 1, the opposite occurs.
TOTAL A+B is the same as Total A, Total B except that Total A is displayed as item 2,
Total B is displayed as item 3 and the sum of A and B is displayed as item 1. Decimal
point 1 applies to both A and B and decimal point 2 applies to the sum of A and B. The
resolution of the sum is determined by setting the multiplier (Resolution) from .00001 to
100000.
TOTAL A-B is the same as Total A+B except that B is subtracted from A
TOTAL AxB is the same as Total A+B except that A is multiplied by B.
TOTAL A/B (Ratio) is the same as Total A+B except that A is divided by B. Total A and
B may be scaled such that the ratio of A/B is 1. When the value of B increases the ratio
-27-