red lion Gemini 5200, Astro Line Series Instruction Manual

THE ASTRO LINE SERIES

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GEMINI 5200 INSTRUCTION MANUAL

INTRODUCTION

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The Gemini 5200 is another unit in a multi-purpose series of industrial
control products that are field-programmable to solve multiple applications.
This series, known as the Astro-Line family of products, is built around the
concept that the end user has the capability to program different
personalities and functions into the unit in order to adapt to different
indication and control requirements.

The Gemini 5200, which you have purchased, has the same high quality
workmanship and advanced technological capabilities that have made Red
Lion Controls the leader in today's industrial market.

Red Lion Controls has a complete line of industrial indication and control
equipment, and we look forward to being of service to you now and in the
future.

CAUTION: Read complete instructions prior

to installation and operation of the unit.

CAUTION: Risk of electric shock.

T ABLE OF CONTENTS

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I. GENERAL DESCRIPTION 2

A) Safety Summary
B) Programming The Gemini 5200
C) Programming The Personality
D) Programming The Presets, Scale Factors, Timed Output Values
E) Factory Settings
F) Operator Accessible Functions With Programming Disabled
G) Diagnostics, Self-Test, & “Watchdog” Timer
H) Input Circuitry & Set-up
I) Overflow Indication

II. PROGRAMMING THE GEMINI 5200 IN DUAL RATE WITHOUT DISPLAY C MODE

A) Codes 41, 42, 43, 44, 45, & 46
B) Codes 51, 52, 53, 54, 55, & 56
C) Codes 61, 62, 63, 64, 65, 66, Preset Values, & Scale FactorsA&B

III. PROGRAMMING THE A/B, (A-B)/B, & A-B DISPLAY C MODES

A) Basic Operation
B) Codes 41, 42, 43, 45, & 46
C) Codes 51, 52, 53, 54, & 55
D) Codes 61, 62, 63, 64, 65, 66, Preset Values, & Scale FactorsA&B
E) Gemini 5200 Programming Example - Speed Ratio Application

IV. GEMINI 5200 20 MA CURRENT LOOP COMMUNICATIONS

A) Communication Format
B) Sending Commands & Data To The Gemini 5200
C) Receiving Data From The Gemini 5200
D) Print Options
E) Current Loop Installation
F) Communications Application
G) Troubleshooting Gemini Serial Communications & Serial Loop-Back Self-Test

V. APPENDIX “A” - INSTALLATION & INPUT CONFIGURATION SWITCH SET-UP
VI. APPENDIX “B” - SPECIFICATIONS & DIMENSIONS
VII. APPENDIX “C” - TROUBLESHOOTING GUIDE
VIII. APPENDIX “D” - DUAL RATE W/O DISP C FUNCTION COMMAND CODE SUMMARY
IX. APPENDIX “E” - GEMINI 5200 DUAL RATE W/DISP C FUNCTION COMMAND CODE SUMMARY
X. APPENDIX “F” - SCALING FOR RATE & DISPLAY C
XI. APPENDIX “G” - GEMINI 5200 PROGRAMMING CHARTS
XII. APPENDIX “H” - ORDERING INFORMATION

3-4
5-6

9-10
10-12
12-14

15-16
16-18
18-20
21-22

24-25

30-37
38-39
40-41
42-45
46-49
50-52
53-56

2
2
2

7
7
8
8
9

15
15

23
23

26
26
27
28
29

57

GENERAL DESCRIPTION

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The Gemini 5200 is a multi-function dual rate indicator which can fulfill
almost any rate indication application. The unit can operate as two independent
rate indicators, with scaling, decimal point placement, and update times,
separatelyprogrammableforeachchannel. The Gemini5200 also hasthree other
unit personalities. These modes feature a third display channel, C, which can
indicate the ratio, difference or draw between the A and B rate channels.

The programming of the rate channels and the calculated display is very
straightforward. Setting up Channel C only requires programming the desired
amount of resolution (for ratio and draw) and the appropriate decimal point
location. The Gemini 5200 simply takes the two rate values and mathematically
calculates display C accordingly.

The Gemini 5200 20 mA Current Loop Communications option provides the
capability of two-way serial communications between the Gemini 5200 and a
variety of equipment, such as a printer, remote terminal, programmable
controller, or host computer. The baud rate can be set to 300, 600, 1200, or 2400
baud. The format for transmitted and received data is 1 start bit, 7 data bits, 1
paritybit (odd), and a stopbit. When utilizing anexternalpower supply (30 VDC
max.), up to sixteen units can be installed in the loop, each with an individual
address.When utilizing theGemini’s 20 mAcurrent source,upto sevenunitscan
be installed in a loop. The Rate Values, Presets, and Scale Factor can be
interrogated or changed by sending the proper command codes and numerical
data (if required) to the unit. Various “Print Options” can be selected to
automatically interrogate the Rate Values, Presets, and Scale Factor by
activating the “Print Request” terminal or by sending a “Transmit Per Print
Option” (P) command.

The construction of the Gemini 5200 features a metal die-cast bezel, offering
maximum durability with a high quality die-cast appearance. The sealed front
panel meets NEMA 4/IP65 specifications for washdown and/or dust when
properly installed. Clamp type pressure plate terminals accept stripped #14
AWG wire without lugs.

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

Donot use this unit to directlycommand motors, valves, or otheractuators not
equipped with safeguards. To do so, can be potentially harmful to persons or
equipment in the event of a fault to the unit.

PROGRAMMING THE GEMINI 5200

When your Gemini 5200 arrives from the factory, it has already been
programmed to function as a Dual Rate Indicator without the calculated C
display. It is programmed with the factory settings listed in the “Factory
Settings” section. If it is required to have the unit operate as a speed ratio, speed
difference or draw indicator, the Unit Personality function code can be changed
to do so.

The personality, functions, and modes are accessed by pressing the
appropriate keys as indicated by the embossed numbers above them. A function
is defined by a two-digit code which appears on the left side of the display. The
modeof that function isshown as a one-digitcodeon the rightsideof the display.
At times there will be a “-” sign modifier to the left of the mode.

Data for the Presets, Scale Factors and Timed Output Values are entered
differently. Each digit key controls the digit on the display directly above it.
Changing the digits can be done by repeatedly pressing the key beneath the digit
position you wish to change or by holding the key down. As you hold it down, or
repetitively press it, the value of that digit will change cyclically, counting up to
9, then to0,andthen up again. The 6 numbered keys correspond to the six digits,
and the “+/-” key corresponds to polarity.

PROGRAMMING THE PERSONALITY

Entering function and mode is easily accomplished by
pressing the appropriate digit key. For the personality
function, you would enter 41 by pressing the front panel
keys, 4 and 1.

Thedigits on the left side ofthe display show the function
code; the digits on the right side show the current
programmed mode.

Anewmode selection is made by entering a new number.
On some of the entries, you have the option of a plus “+” or
minus “-” sign. In the cases where a “+” sign is required, no
sign will be displayed. If you do enter a “-” sign (using the
“+/-” key), a minus sign will be displayed in front of the
appropriate digit.

Pressing the “E” key finalizes the change. The display

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will now show the rate value immediately.

If you do not press the “E” key, the change will not be
recorded.The display will remain inthe programming mode
for 15 seconds, and then return to normal operating mode
using the old function and mode settings.

Whenever the Unit Personality is changed, the factory settings will
automatically be loaded into the unit. The factory settings can also be
programmedinto the unit by callingup the Unit Personality, puttinga “-” in front
of the mode by pushing the “+/-” key, and entering it.

Refer to the “Initial Factory Configuration” section for more details.

PROGRAMMING THE PRESETS, SCALE FACTORS &
TIMED OUTPUT VALUES

The Presets and Scale Factor Values are commonly reprogrammed on a daily
basis. As such, single keystroke access has been provided on the front panel.

The Gemini 5200 has two Scale Factors, one for Rate
DisplayA, and one for Rate DisplayB. Pressing the “3” key
will call up the Scale Factor for the current rate value being
displayed (Rate A or Rate B).

To call up the “other” Scale Factor, the “+/-” key is first pushed to change the
display to the “other” value (Rate A or Rate B), then the “3” key is pushed to
display the Scale Factor for that value.

Theinternal unscaled ratevalue ismultipliedby theScaleFactor Value,which

changes the displayed value accordingly.

To display the Preset 1 Value, the “1” key is pushed.

To change the value, the digits can be cycled through in
the same manner as discussed for the Scale Factors. The
Preset Values can range from -999999 to +999999.

Thenew valuewill beenteredwhen the“E” keyis pressed.

The Timed Output Values are changed by entering
two-digit function codes. After the code is entered, the
display will show the present Timed Output 1 or 2 Value in
seconds with two decimal place resolution. The Timed
Output Values can be set from .01 to 599.99 seconds.

Once the Scale Factor is displayed, changing the digits
canbeaccomplished by repeatedly pressing the key beneath
the digit position you wish to change or by holding the key
down, allowing the digit to cycle.

Thenew valuewill beenteredwhen the“E” keyis pressed.

Tochange the Timed Output 1 Value,enterfunction code
53 and enter the new value by holding down or repeatedly
pressingthe keybelow thedigitposition youwish tochange.

Thenew value will be enteredwhen the “E” key ispressed.
The display will immediately return to the rate value.

PROGRAMMING THE PRESETS, SCALE FACTORS &

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TIMED OUTPUT VALUES [Cont’d]

Note: A Timed Output Value of zero cannot be programmed into the Gemini

5200. Ifa value of 0 is entered into the display,and the “E” key is pressed, the
unit will remain in data entry mode. If a new value is not entered, it will time
out and the unit will continue to use its previous setting.

As with the other functions, you must press “E” to record the changes. For the
data entry modes, if you do not press the “E” key, a time out of 5 seconds occurs,
and the display returns to operating mode without any changes to the value. The
only time any change will occur is when the “E” key is pressed.

FACTORY SETTINGS

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INITIAL FACTORY CONFIGURATION (DUAL RATE)

Keys Struck Display Description

4,1 41 1 Personality selected as DUAL RATE W/O DISP C
4,2 42 3 Reset RateA&Boutputs
4,3 43 1 Rate B Conversion Factor is Rate Per Second (x1)
4,4 44 1 Rate B Minimum Update time of 0.5 Sec.
4,5 45 4 Rate B Scale Multiplier of 1.0
4,6 46 1 Rate B leading zero blanking and no decimal point
5,1 51 1 Output 1 assigned to Rate A, Output 2 to Rate B
5,2 52 3 Output 1 terminates at Reset, Normal Phase
5,3 0000.10 Timed Output 1 value of 0.1 Sec.
5,4 54 3 Output 2 terminates at Reset, Normal Phase
5,5 0000.10 Timed Output 2 value of 0.1 Sec.
5,6 56 4 No Rate B right hand dummy zeros
6,1 61 4 No Rate A right hand dummy zeros
6,2 62 1 Rate A Conversion Factor is Rate per Second (x1)
6,3 63 1 Rate A Minimum Update Time of 0.5 Sec.
6,4 64 4 Rate A Scale Multiplier of 1
6,5 65 1 Rate A leading zero blanking, no decimal point
6,6 66 1 No functions except Reset enabled

3 01.0000 Scale Factor A (Rate A) set to 1.0000
3 01.0000 Scale Factor B (Rate B) set to 1.0000
1 000500 Preset 1 set to 500
2 001000 Preset 2 set to 1000

DUAL RATE WITH SPEED RATIO FACTORY SETTINGS *

Keys Struck Display Description

4,1 41 2 Personality selected as DUAL RATE W/SPEED RATIO
4,2 42 3 Reset RateA&Boutputs
4,3 43 1 Rate B Conversion Factor is Rate Per Second (x1)
4,5 45 4 Rate B Scale Multiplier of 1.0
4,6 46 1 Display C leading zero blanking and no decimal point
5,1 51 1 Output 1 assigned to Rate A, Output 2 to Rate B
5,2 52 3 Output 1 terminates at Reset, Normal Phase
5,3 0000.10 Timed Output 1 value of 0.1 Sec.
5,4 54 3 Output 2 terminates at Reset, Normal Phase
5,5 0000.10 Timed Output 2 value of 0.1 Sec.
6,1 61 1 Display C Multiplier of 1
6,2 62 1 Rate A Conversion Factor is Rate per Second (x1)
6,3 63 1 Rate Minimum Update Time of 0.5 Sec.
6,4 64 4 Rate A Scale Multiplier of 1
6,5 65 1 RateA&Bleading zero blanking, no decimal point
6,6 66 1 No functions except Reset enabled

3 01.0000 Scale Factor A (Rate A) set to 1.0000
3 01.0000 Scale Factor B (Rate B) set to 1.0000
1 000500 Preset 1 set to 500
2 001000 Preset 2 set to 1000

* If function Code 41 is changed to [41 2], then the factory settings are as shown.

FACTORY SETTINGS [Cont’d]

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DUAL RATE WITH SPEED DIFF. FACTORY SETTINGS *

Keys Struck Display Description

4,1 41 3 Personality selected as DUAL RATE W/SPEED DIFF.
4,2 42 3 Reset RateA&Boutputs
4,3 43 1 Rate B Conversion Factor is Rate Per Second (x1)
4,5 45 4 Rate B Scale Multiplier of 1.0
4,6 46 1 Display C leading zero blanking and no decimal point
5,1 51 1 Output 1 assigned to Rate A, Output 2 to Rate B
5,2 52 3 Output 1 terminates at Reset, Normal Phase
5,3 0000.10 Timed Output 1 value of 0.1 Sec.
5,4 54 3 Output 2 terminates at Reset, Normal Phase
5,5 0000.10 Timed Output 2 value of 0.1 Sec.
6,2 62 1 Rate A Conversion Factor is Rate per Second (x1)
6,3 63 1 Rate Minimum Update Time of 0.5 Sec.
6,4 64 4 Rate A Scale Multiplier of 1
6,5 65 1 RateA&Bleading zero blanking, no decimal point
6,6 66 1 No functions except Reset enabled

3 01.0000 Scale Factor A (Rate A) set to 1.0000
3 01.0000 Scale Factor B (Rate B) set to 1.0000
1 000500 Preset 1 set to 500
2 001000 Preset 2 set to 1000

* If [41 1] is changed to [41 2], then the factory settings are as shown.

DUAL RATE WITH SPEED DRAW FACTORY SETTINGS *

Keys Struck Display Description

4,1 41 4 Personality selected as DUAL RATE W/SPEED DRAW
4,2 42 3 Reset RateA&Boutputs
4,3 43 1 Rate B Conversion Factor is Rate Per Second (x1)
4,5 45 4 Rate B Scale Multiplier of 1.0
4,6 46 1 Display C leading zero blanking and no decimal point
5,1 51 1 Output 1 assigned to Rate A, Output 2 to Rate B
5,2 52 3 Output 1 terminates at Reset, Normal Phase
5,3 0000.10 Timed Output 1 value of 0.1 Sec.
5,4 54 3 Output 2 terminates at Reset, Normal Phase
5,5 0000.10 Timed Output 2 value of 0.1 Sec.
6,1 61 1 Display C Multiplier of 1
6,2 62 1 Rate A Conversion Factor is Rate per Second (x1)
6,3 63 1 Rate Minimum Update Time of 0.5 Sec.
6,4 64 4 Rate A Scale Multiplier of 1
6,5 65 1 RateA&Bleading zero blanking, no decimal point
6,6 66 1 No functions except Reset enabled

3 01.0000 Scale Factor A (Rate A) set to 1.0000
3 01.0000 Scale Factor B (Rate B) set to 1.0000
1 000500 Preset 1 set to 500
2 001000 Preset 2 set to 1000

* If [41 1] is changed to [41 2], then the factory settings are as shown.

OPERATOR ACCESSIBLE FUNCTIONS WITH

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PROGRAMMING DISABLED

One of the important features of the Gemini 5200 is the ability to disable
programming. With this ability, accidental bumping of the keys or tampering by
unauthorizedpersonnel can be prevented. However,it may be necessary toallow
reset and certain programming functions, such as Presets and Scale Factor
Values,to bechanged in dailyoperation. TheGemini 5200, throughthe useofthe
“Operator Accessible Functions” modes, can enable these functions even when
the “PGM. DIS.” terminal is connected to “COMMON”.

The “Operator Accessible Functions” modes are programmed by entering a
two-digit function code (66) and the desired mode. Unlike other function codes,
the mode does not take effect immediately. The “PGM. DIS.” terminal must be
connected to “COMMON” in order for the Gemini to disable programming and
operate as per the mode programmed.

Thereare four basic “OperatorAccessible Functions” Modes available.These
modes enable the following functions.

1. NO FUNCTIONS EXCEPT RESET ENABLED - In this mode, manual

reset is enabled, but none of the programming functions can be changed.

However, the functions can be interrogated.

2. PRESET PROGRAMMING AND RESET ENABLED - The entire front

panel is disabled with the exceptions of Preset programmability and manual

reset. All functions can be interrogated.

3. SCALE FACTOR PROGRAMMING AND RESET ENABLED - The

entire front panel is disabled with the exceptions of Scale Factor

programmability and manual reset. All functions can be interrogated.

4. SCALE FACTOR AND PRESET PROGRAMMING, AND RESET

ENABLED - The entire front panel is disabled with the exceptions of Scale

Factor and Preset programmability, and manual reset. All functions can be

interrogated.

All of these modes can be modified with the addition of a “-” sign. The minus
sign disables the manual reset, at the front panel and the remote reset (RST., not
RST.A) terminal, at the rear of the unit.

There is also a rear panel DIP switch which permits disabling of the front panel
resetbutton.This is independent of the rear terminalremotereset, and can be used in
conjunction with any front panel disable mode. The combination of a manual and
remote reset inputs provides a high level of security without sacrificing flexibility.

DIAGNOSTICS, SELF-TEST, & “WATCHDOG” TIMER

The security of the Gemini 5200 is further enhanced by its self-test diagnostic

and “watchdog” timer capabilities.

The diagnostics are concerned with the special, no power memory of the
Gemini 5200. Whenever the power is turned off, all pertinent function settings
and measurements are automatically saved. When power is restored, the
functions and data are re-instated. This allows you to program the unit once and
not have to re-program it until you wish to use it in another mode.

When the function codes and data are saved, computations are made with
thesevalues. The result of these computations isstored in the memory to serveas
a checkagainstpossible error. On power up, the same computations are repeated
on the stored data. If the results do not agree with the stored results, a “P” will
appear ontheleft side of the display. If this occurs, refer to the “Troubleshooting
Guide” for directions.

The Gemini 5200 also contains a “watchdog” timer. In order to insure the
software is functioning properly, the program constantly monitors itself. If the
proper sequence and timing of internal events does not occur, an “E” will appear
onthe left side ofthedisplay. If this occurs,refer to the “TroubleshootingGuide”
for directions.

The final type of built-in check, is the front panel initiated self-test. It can be
performed at any time, even when the Gemini 5200 is running. It will not
interferewith the accumulationof counts orcontrol functions. Afunction codeof
“6”, “+/-” starts the test. At this time, whatever was displayed will disappear and
be replaced by a string of decimal points and the overflow indicator. Then the
display willshow a string of 9’s, then 8’s etc., until astringof 0’s are shown. The
self-test will then turn off the overflow indicator and activate the minus “-” sign.
Then the unit shows an interlace pattern of -010101, then -212121, followed by

-232323 etc., until -898989 is reached. At this time the outputs can be tested by
pressing the “1” or “2” key. (The program disable pin must be disconnected in
order to allow activation of the outputs.) An automatic exit will take place after
six seconds or immediately if the Program Disable terminal is connected to
common.Normal length of display time foreach of the patterns isapproximately

0.5 sec. Rapidly pressing “E” during self-test can speed up the sequence.

INPUT CIRCUITRY & SET-UP

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There are two independent input channels on the Gemini 5200. Various types
ofsensoroutputs can be accommodated by appropriate DIP switchset-up. These
include: TTL or CMOS logic, current sinking, current sourcing, dry contact or
magnetic pickup.

Both Input Channels A and B consist of a logic input and a separate low level
magnetic pickup input. For a complete detailed description of input set-up, see
Appendix “A”.

OVERFLOW INDICATION

TheGemini 5200 featuresan overflow indicator(LED) whichislocated tothe left
of the sixth digit and above the polarity annunciator. This LED will turn on if the
capacity of the display (6-digits) is exceeded or if the following conditions occur.

Uponpower-up, thedisplay will goto zero,and the overflowLED willturn on.
The overflow LED is turned on to indicate that the zero on the display is not a
measured value. The overflow LED will turn off after the Gemini 5200
completes its rate measurement. It will take 16 seconds if the rate is zero.

The overflow LED canalsoturnon when the rate input frequency exceeds the
maximum 3250 cps allowed for a rate update period of 16 sec. See Code 63 ­“Rate Minimum Update Time”.

PROGRAMMING THE GEMINI 5200 IN DUAL RATEWITHOUT DISPLA YC MODE

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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
accomplishedby programming the“Minimum Update Time”(0.5 sec. to16 sec.)
for the desired response. Extensive scaling capabilities allow practically any
desired reading at very slow count rates.

Inthe Dual Rate,without Display Cmode,the two rateindicators operate inan
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
DisplayC Modes” sectioncoversprogramming of theGemini 5200 when inUnit
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
pressingthe“+/-” key, and the “E” key is pushedtoload 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 DISPLAYC-Inthis unit personality, the

Gemini 5200 operates as a dual rate indicator with an A/B display C function.

See“Programming TheA/B, (A-B)/B, AndA-B DisplayC Modes” sectionfor

programming details.

[41 3] DUAL RATE WITH A-B DISPLAYC-Inthis 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 DISPLAYC-Inthis 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 RATEA&BOUTPUTS

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)

CODE 44 - RATE B MINIMUM/MAXIMUM UPDATE TIME

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The determinationofthe rate value uses a method in which the elapsed time is
measured between the first and last pulse of the update period. The minimum
updatetime is the shortestthe time periodcan be. Once theminimum update time
has expired, the unit will end the measurement period when the next negative
goingcount edge occurs. If theunit does not receive thenextnegative 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.

[44 1] 0.5 Sec. minimum/1 Sec. maximum
[44 2] 1 Sec. minimum/2 Secs. maximum
[44 3] 2 Secs. minimum/4 Secs. maximum
[44 4] 4 Secs. minimum/8 Secs. maximum
[44 5] 8 Secs. minimum/16 Secs. maximum (max. rate = 7500 cps)
[44 6] 16 Secs. minimum/32 Secs. maximum (max. rate = 3250 cps)

CODE 45 - RATE B SCALE MULTIPLIER

The Rate B Scale Multiplier is used in conjunction with the Rate Scale Factor
B and Rate B Conversion Factor to scale the actual signal input to obtain the
desired reading.

[45 1] x 1000
[45 2] x 100
[45 3] x10
[45 4] x1
[45 5] x 0.1
[45 6] x 0.01

CODE 46 - RATE B DECIMAL POINT & LEADING ZERO
BLANKING

There are six basic modes of decimal point placement for the Rate B indicator
of the Gemini 5200. 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.

[46 1] 0
[46 2] 0.0
[46 3] 0.0 0 LEADING ZERO
[46 4] 0.0 0 0 BLANKING
[46 5] 0.0000
[46 6] 0.00000

[46 -1] 000000
[46 -2] 00000.0
[46 -3] 0 0 0 0.0 0 LEADING ZERO
[46 -4] 0 0 0.0 0 0 BLANKING INHIBITED
[46 -5] 00.0000
[46 -6] 0.00000

CODE 51 - OUTPUT ASSIGNMENT

The outputs oftheGemini5200 can be assigned to either the Rate A or Rate B

channel or one to each.

The Gemini 5200 has a Preset tracking feature which allows Preset 1 to track
Preset2. If Preset trackingis programmed, whenever thePreset 2 valueischanged,
the Preset 1 value will also change to maintain the same offset. For example, if
Preset 1 is 100 and Preset 2 is 200, changing Preset 2 to 300 will automatically
changePreset 1 to 200,maintaining the same 100unit offset. In orderto change the
amount of offset, the Preset 1 value is changed. The Preset tracking feature is
programmed by adding a “-” modifier in front of the desired mode.

Note: When Preset tracking is enabled, before changing Preset 2 via serial

communications, the Preset 2 value must be interrogated in order to establish

the Preset 1 value.

[51 1] Output 1 assigned to Rate A, Output 2 assigned to Rate B
[51 2] Outputs1&2assigned to Rate B
[51 3] Outputs1&2assigned to Rate A

[51 -1]
[51 -2]
[51 -3]

These modes are the same as above with the exception
that Preset Tracking is enabled.

CODE 52 - OUTPUT 1 TERMINATION MODES

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The Gemini 5200 has four “Output 1 termination Modes” which control the
way Output 1 will terminate or reset. In all modes, Output 1 will terminate
immediately when the channel to which it is assigned is manually reset.

A reverse phase mode is available on the Gemini 5200. This refers to the
complementing of the logic state of Output 1. With normal phase operation,
when the display value reaches Preset 1, Output 1 will turn on. The reset
conditionofOutput 1 is output off. In reverse phase operation, Output1 turns off
whenPreset 1 is reached.The reset condition ofOutput 1 is outputon. (Note: The
state of the relay, if used, is also reversed.) A “-” sign in front of the mode
identifier will provide for reversephaseoperation.The absence of a “-” sign will
indicate normal phase operation.

[52 3] TERMINATEAT MANUAL RESET- Output 1activates when therate is

greater than or equal to the Preset 1 value. In this mode, once Output 1 is

activated, it does not deactivate until the moment a manual reset occurs.

Output 1 is set for normal phase operation.
[52 4] TERMINATE AT MANUAL RESET END - This mode is like the

preceding, except Output 1 deactivates when reset ends. Output 1 is set for

normal phase operation.
[52 5] TERMINATE AFTER TIMED OUTPUT1-Ifboth outputs are assigned to

the same rate channel [51 2,3], Output 1 will activate when the rate is below or

equalto the Preset 1 value. Ifeach output is assigned to adifferent channel [51 1],

Output1 willactivate whentherate isgreater thanor equal tothe Preset1 Value.

Output 1 will terminate after the “Timed Output 1 Value” if the timed output

value islessthan the update time of the rate channel. If the timed output value is

greaterthan theupdate time, theoutput willappearto belatched on, deactivating

whentherate drops below the Preset [51 1],or above the Preset [51 2,3]andthe

output time expires. Output 1 is set for normal phase operation.
[52 6]BOUNDARYMODE - When in boundary mode, the Preset 1 Value serves

as the boundary point. When the rate value is less than Preset 1, Output 1 is not

activated (normal phase). When the rate value is greater than or equal to the

Preset, Output 1 is activated. If the display value were to drop below Preset 1,

Output 1 would then deactivate. Output 1 is set for normal phase operation.

[52 -3]
[52 -4] These modes are the same as above with the exception
[52 -5] that Output 1 is set for reverse phase operation.
[52 -6]

CODE 53 - TIMED OUTPUT 1 VALUE

The Gemini 5200 has the capability of varying the Timed Output 1 value from

0.01 second to 599.99 seconds. When the code is entered, instead of a single mode
identifier digit beingdisplayed,sixdigits will be shown. Refer to the “Programming
The Presets, Scale Factors, And Timed Output Values” section for more details
about entering. The timed output will be terminated if the unit is manually reset.

The Timed Output 1 Value is used only when in timed output termination

mode, [52 5].

Note: A Timed Output Value of zero cannot be programmed into the Gemini 5200.

If avalue of 0 is entered into thedisplay and the “E” key is pressed, the unitwill
not enterthe 0,but willstay in the data entry mode. If a new value is not entered,
it will time out and the unit will continue to use its previous setting.

CODE 54 - OUTPUT 2 TERMINATION MODES

The Gemini 5200 has four “Output 2 termination Modes” which control the
way Output 2 will terminate or reset. In all modes Output 2 will terminate
immediately when the channel to which it is assigned is manually reset.

A reverse phase mode is available on the Gemini 5200. This refers to the
complementing of the logic state of Output 2. With normal phase operation,
when the display value reaches Preset 2, Output 2 will turn on. The reset
conditionofOutput 2 is output off. In reverse phase operation, Output2 turns off
when Preset 2 is reached.

Thereset conditionof Output2is outputon. (Note:The state ofthe relay,if used,
is also reversed.) A “-” sign in front of the mode identifier will provide for reverse
phase operation. The absence of a “-” sign will indicate normal phase operation.

CODE 54 - OUTPUT 2 TERMINATION MODES (Cont’d)

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[543] TERMINATE AT MANUAL RESET- Output 2 activates whenthe rate is

greater than or equal to the Preset 2 value. In this mode, once Output 2 is
activated, it does not deactivate until the moment a manual reset occurs.
Output 2 is set for normal phase operation.

[54 4] TERMINATE AT MANUAL RESET END - This mode is like the

preceding, except Output 2 deactivates when reset ends. Output 2 is set for
normal phase operation.

[54 5] TERMINATE AFTER TIMED OUTPUT 2 - Output 2 will activate when

therate isgreater than orequal tothe Preset2Value andwill terminateafter the
“Timed Output 2Value”expires. This will occur every update time period for
whichthe above conditionis true. Ifthe output durationtime is greaterthan the
update time, Output 2 will appear to be latched on, deactivating when the rate
drops below the Preset and the output time expires. Output 2 is set for normal
phase operation.

[546] BOUNDARY MODE- Whenin boundary mode,the Preset 2Value serves

asthe boundary point. When theratevalue is less than Preset2, Output 2 is not
activated(normal phase). When therate value is greaterthan or equal toPreset
2, Output 2 is activated. If the display value were to drop below Preset 2,
Output 2 would then deactivate. Output 2 is set for normal phase operation.

[54 -3]
[54 -4] These modes are the same as above with the exception
[54 -5] that Output 2 is set for reverse phase operation.
[54 -6]

CODE 55 - TIMED OUTPUT 2 VALUE

The Gemini 5200 has the capability of varying the timed output from 0.01
second to 599.99 seconds. When the code is entered, instead of a single mode
identifier digitbeingdisplayed, six digits will be shown. Refer to “Programming
The Presets, Scale Factors, And Timed Output Values” section for more details
aboutentering. TimedOutput 2willbe terminatedif theunit is manuallyreset.

The Timed Output 2 Value is used only when in timed output termination
mode, [54 5].

Note: A Timed Output Value of zero cannot be programmed into the Gemini 5200.

If avalue of 0 is entered into thedisplay and the “E” key is pressed, the unitwill
not enterthe 0,but willstay in the data entry mode. If a new value is not entered,
it will time out and the unit will continue to use its previous setting.

CODE 56 - RATE B RIGHT HAND DUMMY ZEROS

Dummyzeros canbe usedtoalleviate displayfluctuations dueto an unstableinput
signal.These zeros effectivelymove significantdigitsto theleft. Therefore, anormal
rate display 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.

[56 1] 1 RIGHT HAND DUMMY ZERO
[56 2] 2 RIGHT HAND DUMMY ZEROS
[56 3] 3 RIGHT HAND DUMMY ZEROS
[56 4] NO RIGHT HAND DUMMY ZEROS

CODE 61 - RATE A RIGHT HAND DUMMY ZEROS

Dummyzeros canbe usedtoalleviate displayfluctuations dueto an unstableinput
signal.These zeros effectivelymove significantdigitsto theleft. Therefore, anormal
rate display 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 A CONVERSION FACTOR

The Rate A Conversion Factor is used to convert Display A to indicate rate in
the desired time unit. See Appendix “F” - Scaling For Rate And Display C.

[62 1] Rate Per Second (x1)
[62 2] Rate Per Minute (x60)
[62 3] Rate Per Hour (x3600)

CODE 63 - RATE A MINIMUM/MAXIMUM UPDATE TIME

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The determinationofthe rate value uses a method in which the elapsed time is
measured between the first and last pulse of the update period. The minimum
updatetime is the shortestthe time periodcan be. Once theminimum update time
has expired, the unit will end the measurement period when the next negative
goingcount edge occurs. If theunit does not receive thenextnegative 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 Secs. minimum/4 Secs. maximum
[63 4] 4 Secs. minimum/8 Secs. maximum
[63 5] 8 Secs. minimum/16 Secs. maximum (max. rate = 7500 cps)
[63 6] 16 Secs. minimum/32 Secs. maximum (max. rate = 3250 cps)

CODE 64 - RATE A SCALE MULTIPLIER

The Rate A Scale Multiplier is used in conjunction with the Rate Scale Factor
A and Rate A Conversion Factor to scale the actual signal input to obtain the
desired reading.

[64 1] x 1000
[64 2] x 100
[64 3] x10
[64 4] x1
[64 5] x 0.1
[64 6] x 0.01

CODE 65 - RATE A DECIMAL POINT & LEADING ZERO
BLANKING

There are sixbasicmodesof decimal point placement for the Rate A indicator
of the Gemini 5200. 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] 0.0000
[65 6] 0.00000

[65 -1] 000000
[65 -2] 00000.0
[65 -3] 0 0 0 0.0 0 LEADING ZERO
[65 -4] 0 0 0.0 0 0 BLANKING INHIBITED
[65 -5] 00.0000
[65 -6] 0.00000

CODE 66 - “OPERATOR ACCESSIBLE FUNCTIONS” MODES

The Gemini 5200 has four basic levels of “Operator Accessible Functions”.
Each of these levels canbemodifiedto enable or disable manual reset. When the
“PGM. DIS.” (program disable) terminal is connected to “COMMON”, access
to all functions is disabled except for those listed below which will remain
enabled.All of the function codes andparameterscan be interrogated, regardless
of the “Operator Accessible Functions” mode selected.

A “-” sign in front of the mode identifier will disable the front panel Reset
button and the “RST.” terminal.

Note: The front panel reset button can be independently disabled by using the

disable reset DIP switch.

[66 1] NO FUNCTIONS ENABLED EXCEPT RESET - In this mode, manual

reset is enabled, but none of the programming functions can be changed.
[66 2] PRESET PROGRAMMING AND RESET ENABLED - In this mode,

manual reset and the programming of the Preset Values are enabled.
[66 3] SCALE FACTOR PROGRAMMING AND RESET ENABLED - In this

mode, manual reset and the programming of the Scale Factors are enabled.
[66 4] SCALE FACTOR, PRESET PROGRAMMING & RESET ENABLED -

Inthis mode, manualresetand the programmingof the Scale Factorand Preset

Values are enabled.

CODE 66 - “OPERATOR ACCESSIBLE FUNCTIONS” MODES (Cont’d)

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[66 -1]
[66 -2] These Modes are the same as above with the
[66 -3] exception that manual reset is disabled.
[66 -4]

PRESET VALUES

Whenever the display value equals the Preset 1 or 2 Value, an output action
will occur. This action depends on the previously programmed modes. The
Preset Values may vary from -999,999 to 999,999. Refer to “Programming The
Presets, Scale Factors, And Timed Output Values” section for instructions on
entering the Preset Values.

“1” - PRESET 1 VALUE
“2” - PRESET 2 VALUE

SCALE FACTORSA&B

“3” SCALE FACTOR - The Scale Factor, for whichever Value (Rate A or B)
is currently being displayed, is accessed by pressing the “3” key. To access the
Scale Factor of the “other” rate display value, the “+/-” key would be pushed (to
change the display to the other value), then the “3” key would be pushed. The
actual rate (in pps) is multiplied by the Scale Factor, Scale Multiplier, and Rate
Conversion factor to obtain the desired display reading. The Scale Factor is used
primarily for conversion from existing pulses per unit of measure to the required
displayedunits. Thisincludes conversion fromdifferent units ofmeasure (i.efeet
tometers, etc.). The ScaleFactor Values may rangefrom 0.0001 to 5.9999.Refer
to“Programming The Presets, ScaleFactors, And Timed OutputValues” section
for instructions on entering the Scale Factor Values.

PROGRAMMING THE A/B, (A-B)/B, AND A-B DISPLAYC MODES

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Thissection will dealwith the programmingand operation oftheGemini 5200
inthe modes whichinclude Display C,[41 2,3,4]. Sinceall three displayC modes
are very similar in operation, they will all be covered in one section.

BASIC OPERATION

In all of the display C modes, the Gemini 5200 performs a mathematical
calculation using Rate channelsA&Btoobtain the Display C value.

The tworate 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
accomplishedby programming the“Minimum Update Time”(0.5 sec. to16 sec.)
for the desired response.

Whenoperating in any of the three modeswhich utilize display C, the tworate
indicators will synchronize themselves in order to obtain an accurate display C
reading. The Gemini5200willdetermine which channel is running at the slower
rate, anditwill use that channel to synchronize the other channel. This is done so
that both time measurement windows are as close as possible. Because it is
necessary to keep the measurement windows the same, there is only one Rate
Minimum Update Time setting. The slower channel will determine the update
time for the other rate channel and Display C.

If one rate input signal drops out before the update period has completed, that
channel will go to zero after the maximum update time has expired. The channel
will then continually time-out according to the maximum update time that was
selected in Code 63, until a rate signal again appears on its input. After the first
time-out, the other channel, which still has a rate signal on its input, will then
begin to operate in a non-synchronous manner, updating according to the
“Minimum Update Time” and its input frequency. It will not synchronize with
the channel that timed-out, and has an update period of 16 seconds.

The Display C channel, however, will only update according to the
maximum update time because it is calculated based on both of the rate
channels. The rate channels will again synchronize when both channels have a
rate signal on their inputs.

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 dealswiththe unit personality programmed as a Dual Rate
Indicator with Display C, modes 2, 3, or 4. A separate section, “Programming
The Gemini 5200 In Dual Rate Without Display C Mode” goes over the
programming of the Gemini 5200 when programmed in mode 1.

Whenever 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
personality,the unitpersonalityis calledup, a minusis putinfront ofthe mode by
pressing the “+/-” key, and the “E” key is pushed to load the factory settings.

[41 1] DUALRATE INDICATION -In this UnitPersonality, theGemini5200

operates as two independent rate indicators. See “Programming The Gemini

5200In DualRate WithoutDisplayC Mode”section forprogramming details.
[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 (Speed Ratio)

Display C function.
[41 3] DUAL RATE WITH A-B DISPLAY C - In this unit personality, the

Gemini 5200 operates as a dualrateindicatorwithan A-B (Speed Difference)

Display C function.
[41 4] DUALRATE WITH (A-B)/BDISPLAYC - Inthis unit personality, the

Gemini 5200 operates as a dual rate indicator with an (A-B)/B (Speed Draw)

Display C function.

[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 BUTTON & TERMINAL ACTUATION

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MODES

TheReset Button & Terminal Actuationmodes control the effectthat the reset
button and terminal have on the two display channels. Resetting will not affect
the rate displays 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 Rate A and B channels.

[42 1] RESET RATE A OUTPUT(S)
[42 2] RESET RATE B OUTPUT(S)
[42 3] RESET RATEA&BOUTPUT(S)
[42 4] RESET DISPLAY C OUTPUT(S)
[42 5] RESET DISPLAY C AND RATE A OUTPUT(S)
[42 6] RESET DISPLAY C AND RATE B OUTPUT(S)

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)

CODE 45 - RATE B SCALE MULTIPLIER

The Rate B Scale Multiplier is used in conjunction with the Rate Scale Factor
B and Rate B Conversion Factor to scale the actual signal input to obtain the
desired reading.

[45 1] x 1000
[45 2] x 100
[45 3] x10
[45 4] x1
[45 5] x 0.1
[45 6] x 0.01

CODE 46 - DISPLAY C DECIMAL POINT & LEADING ZERO
BLANKING

There are six basic modes of decimal point placement for the Display C
indicatorof the Gemini 5200.The decimal point isplaced to therightof the display
digitthat corresponds to themode identifier. (The rightmost decimal point, digit1,
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.

[46 1] 0
[46 2] 0.0
[46 3] 0.0 0 LEADING ZERO
[46 4] 0.0 0 0 BLANKING
[46 5] 0.0000
[46 6] 0.00000

[46 -1] 000000
[46 -2] 00000.0
[46 -3] 0 0 0 0.0 0 LEADING ZERO
[46 -4] 0 0 0.0 0 0 BLANKING INHIBITED
[46 -5] 00.0000
[46 -6] 0.00000

CODE 51 - OUTPUT ASSIGNMENT

The outputs of the Gemini 5200 can be assigned to the Rate A, Rate B, or the
Display C channel.

The Gemini 5200 has a Preset tracking feature which allows Preset 1 to track
Preset 2. If Preset tracking is programmed, whenever the Preset 2 value is changed,
thePreset 1 valuewillalso change tomaintain the same offset.For example, ifPreset
1 is 100 and Preset 2 is 200, changing Preset 2 to 300 will automatically change
Preset 1 to 200, maintaining the same 100 unit offset. In order to change the amount
ofoffset, the Preset1 valueis changed. ThePreset tracking featureis programmed by
adding a “-” modifier in front of the desired mode.

Note: When Preset tracking is enabled, before changing Preset 2 via serial

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communications, the Preset 2 value must be interrogated in order to establish
the Preset 1 value.

[51 1] Output 1 assigned to Rate A, Output 2 assigned to Rate B
[51 2] Outputs1&2assigned to Rate B
[51 3] Outputs1&2assigned to Rate A
[51 4] Output 1 assigned to Rate B, Output 2 assigned to Display C
[51 5] Output 1 assigned to Rate A, Output 2 assigned to Display C
[51 6] Output1&2assigned to Display C

[51 -1]
[51 -2]
[51 -3] These modes are the same as above with the
[51 -4] exception that Preset Tracking is enabled.
[51 -5]
[51 -6]

CODE 52 - OUTPUT 1 TERMINATION MODES

The Gemini 5200 has four “Output 1 termination Modes” which control the
way Output 1 will terminate or reset. In all modes, Output 1 will terminate
immediately when the channel to which it is assigned is manually reset.

A reverse phase mode is available on the Gemini 5200. This refers to the
complementing of the logic state of Output 1. With normal phase operation,
when the display value reaches Preset 1, Output 1 will turn on. The reset
conditionofOutput 1 is output off. In reverse phase operation, Output1 turns off
whenPreset 1 is reached.The reset condition ofOutput 1 is outputon. (Note: The
state of the relay, if used, is also reversed.) A “-” sign in front of the mode
identifier will provide for reversephaseoperation.The absence of a “-” sign will
indicate normal phase operation.

[52 3] TERMINATE AT MANUAL RESET - Output 1 activates when the rate

ordisplay valueis greater thanor equalto the Preset1 value.In thismode,once

Output 1 is activated, it does not deactivate until the moment a reset occurs.

Output 1 is set for normal phase operation.
[52 4] TERMINATE AT MANUAL RESET END - This mode is like the

preceding, except Output 1 deactivates when reset ends. Output 1 is set for

normal phase operation.

[52 5] TERMINATE AFTER TIMED OUTPUT1-Ifboth outputs are assigned

to the same channel [51 2,3,6], Output 1 will activate when the rate or display
value is below or equal to the Preset 1 value. If each output is assigned to a
different channel [51 1,4,5], Output 1 will activate when the rate or display
value is greater than or equal to the Preset 1 Value.
Output 1 willterminateafterthe “Timed Output 1 Value” if the Timed Output
Value is less than the update time of the rate or display channel. If the Timed
Output 1 Value is greater than the programmed update time, Output 1 will
appear to be latched on, deactivating when the rate or display value drops
below the Preset [51 1,4,5], or above the Preset [51 2,3,6] and the output time
expires. Output 1 is set for normal phase operation.

[52 6] BOUNDARY MODE - When in boundary mode, the Preset 1 Value

servesasthe boundary point. When the rate ordisplayvalue is less than Preset
1, Output 1 is not activated (normal phase). When the rate or display value is
greaterthan orequal to Preset1, Output 1is activated.If the displayvalue were
to drop below Preset 1, Output 1 would then deactivate. Output 1 is set for
normal phase operation.

[52 -3]
[52 -4] These modes are the same as above with the exception
[52 -5] that Output 1 is set for reverse phase operation.
[52 -6]

CODE 53 - TIMED OUTPUT 1 VALUE

The Gemini 5200 has the capability of varying Timed Output 1 from 0.01
second to 599.99 seconds. When the code is entered, instead of a single mode
identifier digitbeingdisplayed, six digits will be shown. Refer to “Programming
Presets, Scale Factors, and Timed Output Values” section for more details about
entering. The timed output will be terminated if the unit is manually reset.

The Timed Output 1 Value is used only when in timed output termination
mode, [52 5].

Note: A Timed Output Value of zero cannot be programmed into the Gemini 5200.

If avalue of 0 is entered into thedisplay and the “E” key is pressed, the unitwill

not enterthe 0,but willstay in the data entry mode. If a new value is not entered,

it will time out and the unit will continue to use its previous setting.