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PROGRAMMING THE GEMINI 5200 IN DUAL RATE WITHOUT DISPLAY C MODE
The rate indicators use a time interval method (1/tau) to calculate the rate
value. This method enables high resolution at all input rates. The unit counts
input pulses and after a programmable minimum update time has occurred, it
waits until the next count edge occurs, takes the elapsed time and number of
edges, and calculates the rate value. At slower rates, averaging can be
accomplished by programming the “Minimum Update Time” (0.5 sec. to 16 sec.)
for the desired response. Extensive scaling capabilities allow practically any
desired reading at very slow count rates.
In the Dual Rate, without Display C mode, the two rate indicators operate in an
independent non-synchronized fashion. Input A serves as the input to the Rate A
indicator and Input B serves as the input to the Rate B indicator. All modes are
independently selected for each rate channel.
CODE 41 - UNIT PERSONALITY
The unit personality mode is the first function code that is programmed. This
mode will determine the basic operational characteristics of the unit. This
programming section deals with the unit programmed as a Dual Rate Indicator
without Display C, mode 1. The “Programming The A/B, (A-B)/B, And A-B
Display C Modes” section covers programming of the Gemini 5200 when in Unit
Personality modes 2, 3, and 4.
Once the Unit Personality mode is changed, the factory settings will
automatically be loaded into the unit’s memory. This provides a known starting
place. If at any point, it is desired to return to the factory settings for the current
mode, the unit personality is called up, a minus is put in front of the mode by
pressing the “+/-” key, and the “E” key is pushed to load the factory settings. The
factory settings are listed on page 5 and 6.
[41 1] DUAL RATE INDICATION - In this mode, the Gemini 5200 operates as
two independent rate indicators.
[41 2] DUAL RATE WITH A/B DISPLAY C - In this unit personality, the
Gemini 5200 operates as a dual rate indicator with an A/B display C function.
See “Programming The A/B, (A-B)/B, And A-B Display C Modes” section for
programming details.
[41 3] DUAL RATE WITH A-B DISPLAY C - In this unit personality, the
Gemini 5200 operates as a dual rate indicator with an (A-B) Display C
function. See “Programming The A/B, (A-B)/B, And A-B Display C Modes”
section for programming details.
[41 4] DUAL RATE WITH (A-B)/B DISPLAY C - In this unit personality, the
Gemini 5200 operates as a dual rate indicator with an (A-B)/B Display C
function. See “Programming The A/B, (A-B)/B, And A-B Display C Modes”
section for programming details.
[41 -1]
[41 -2]
A minus indicator preceding the mode will cause
[41 -3] the factory settings to be loaded when entered.
[41 -4]
CODE 42 - RESET KEY & TERMINAL ACTUATION MODES
The Reset Button & Terminal Actuation Modes controls the effect that the
reset button and terminal have on the two display channels. Resetting will not
affect the rate displays or update period in any manner. Reset only affects the
output(s) associated with the rate channels.
There is a separate “Rst A” terminal provided which makes it possible to
independently reset both the Rate A and B Outputs.
[42 1] RESET RATE A OUTPUT(S)
[42 2] RESET RATE B OUTPUT(S)
[42 3] RESET RATE A & B OUTPUTS
CODE 43 - RATE B CONVERSION FACTOR
The Rate B Conversion Factor is used to convert Display B to indicate rate in
the desired time unit. See Appendix “F” - Scaling For Rate And Display C.
[43 1] Rate Per Second (x1)
[43 2] Rate Per Minute (x60)
[43 3] Rate Per Hour (x3600)
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