Red Lion GEMINI 42 - Manual (Page 17)

CODE 61 - RATE (A) RIGHT HAND DUMMY ZEROS
Dummy zeros can be used to alleviate display fluctuations due to an unstable
input signal. These zeros effectively move significant digits to the left. Therefore, a
normal count of 1 could be shown as a 10, 100, or 1000. Using the dummy zeros
will make it necessary to adjust the scaling if they were not considered before.
[61 1] 1 RIGHT HAND DUMMY ZERO
[61 2] 2 RIGHT HAND DUMMY ZEROS
[61 3] 3 RIGHT HAND DUMMY ZEROS
[61 4] NO RIGHT HAND DUMMY ZEROS
CODE 62 - RATE CONVERSION FACTOR
The rate conversion factor provides a simple means of obtaining the desired rate
reading, using the same Scale Factor Value as the counter, when the rate and count
units are the same. In most applications, it is simply programmed to the desired
time unit that the rate is to displayed in. See Appendix “F” - Scaling For Rate.
[62 1] Rate Per Second (x1)
[62 2] Rate Per Minute (x60)
[62 3] Rate Per Hour (x3600)
CODE 63 - RATE MINIMUM UPDATE TIME
The determination of the rate value uses a method in which the elapsed time is
measured between the first and last pulse of the update period. The minimum
update time is the shortest the time period can be. Once the minimum update time
has expired, the unit will end the measurement period when the next negative
going count edge occurs. If the unit does not receive the next negative count edge
within the maximum update time at the start of the measurement period, the unit
will end the time period and the rate display will go to zero. At very slow count
rates the update time period will be the actual period of one count cycle.
[63 1] 0.5 Sec. minimum/1 Sec. maximum
[63 2] 1 Sec. minimum/2 Secs. maximum
[63 3] 2 Sec. minimum/4 Secs. maximum
[63 4] 4 Sec. minimum/8 Secs. maximum
[63 5] 8 Sec. minimum/16 Secs. maximum (max. rate = 7500 cps)
[63 6] 16 Sec. minimum/32 Secs. maximum (max. rate = 3250 cps)
CODE 64 - RATE SCALE MULTIPLIER
The Rate Scale Multiplier is used in conjunction with the Rate Scale Factor A
and Rate Conversion Factor to scale the actual signal input to obtain the desired
reading. See Appendix “F” - Scaling For Rate.
[64 1] x 1000
[64 2] x 100
[64 3] x 10
[64 4] x 1
[64 5] x 0.1
[64 6] x 0.01
CODE 65 - RATE (A) DECIMAL POINT & LEADING ZERO
BLANKING
There are six basic modes of decimal point placement for the Rate indicator of
the Gemini. The decimal point is placed to the right of the display digit that
corresponds to the mode identifier. (The right most decimal point, digit 1, is
never turned on.) A “-” sign in front of the mode identifier will inhibit leading
zero blanking. The absence of a “-” sign will enable leading zero blanking.
[65 1] 0
[65 2] 0.0
[65 3] 0.0 0 LEADING ZERO
[65 4] 0.0 0 0 BLANKING
[65 5] 0.0 0 0 0
[65 6] 0.0 0 0 0 0
[65 -1] 0 0 0 0 0 0
[65 -2] 0 0 0 0 0.0
[65 -3] 0 0 0 0.0 0 LEADING ZERO
[65 -4] 0 0 0.0 0 0 BLANKING INHIBITED
[65 -5] 0 0.0 0 0 0
[65 -6] 0.0 0 0 0 0
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