AW Gear Meters EMO-1005 User Manual

ELECTRONICS FOR

INSTRUMENTATION

FLOW

TRANSMITTERS

EMO-1005

Flow Computer

8809 Industrial Drive, Franksville, WI 53126-9337

Tel: [phone] Fax: [phone]

E-Mail: [e-mail]

Web: http://www.awgearmeters.com

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Rev. 1a

Table of Contents

Introduction 2

Using the EMO-1005 4

Unit Installation 5

Screen Manipulation 6

Display Mode Selection 6

Rate Display 7

Total Display 7

Simple Ratio Display 8

Peak Ratio Display 8

Status Display Mode 9

Programming the EMO-1005 10

Rate Scaling 12

Totalizer Scaling - KFT 13

Limits Programming 15

Rate Limit 16

Total Limit 16

Analog Gain - KFA 17

Offset Analog Out 18

Sample Amount 18

Cutoff Frequency 19

Analog In Gain 19

Channel Mode Selection 20

Monitor Mode 20

PID Operations 21

Transparent PI Controller 21

Limits in PID Operation 22

Initial Kick 23

Auto Hold 23

Manual Hold 23

Software Change 24

Gun-on PI Controller 25

Complex Ratio Mode 25

Closed Loop Control Mode 26

Linearizer 27

Using the Linearizer 27

Programming the Linearizer 28

Serial Port 29

Serial Port Programming 29

Serial Port Connection Wiring 31

Hardware Hints 36

Back Panel Details 37

Troubleshooting 38

Warranty 40

Appendixes

Quick Reference Key Sequences A

Programmable Parameters B

Analog I/O Circuits C

Digital I/O Circuits D

Back Panel Connections E

Jumper Settings F

Power Supply-Jumpers & Fuses G

Panel Cutouts H

Dimensions I

PID Mode External Hookup J

Fiber Optic Flow Control System K

EMO-1005 w/built in PNAO L

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INTRODUCTION

The EMO-1005 is a multi channel indicating, computing and signal processing system, applicable in

single channel use and expandable to systems with as many as 250 independently operating channels.

All its functions can be programmed through the programming keyboard in the front panel or

optionally, by a host computer through a RS 422 (RS 232 option) serial port.

There are 5 selectable modes of operation (see page 19); the most popular are either MONITOR or

PID (closed loop). In any mode both instantaneous flow rate and batch totalizing can be displayed

simultaneously.

The main housing is equipped to hold four channel cards, the display board, the programming

keyboard, the communication port and the power supply.

The display is a 16 character, two line alphanumeric Super-Twist LCD with back-lighting for improved

readability in non-daylight situations.

Before installation read HARDWARE HINTS (page 38)

Each channel can be programmed with the following information:

- Rate scale and engineering units

- Totalizer scaling and engineering units

- Rate limit settings (four)

- Totalizer limit settings (four)

- Analog Output Gain

- Analog Output Offset

- Sample amount

- Cut-off frequency

- Analog Input Gain

- Monitor or PI mode

- Linearizer setting (10 points with linear interpolation between points)

Display of rate ratio between any two of the channels can also be programmed.

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Typical applications for the EMO-1005 unit:

- Rate and total indicator for flow meters, tachometers, parts counters, etc.

- Processing unit for batch operations.

- Closed loop controller for flow rate, speed, etc.

- In applications with non-linear transmitters

(frequency output not directly proportional w/flow or speed).

- Operations requiring limit outputs.

- Computing and display unit for:

Flow meters

Pressure transducers

Tachometers

Inductive pick-ups

Hall sensors

Temperature sensors

Encoders

Pulse generators

Etc.

The EMO-1005 is capable of displaying 28 different engineering units.

Example of some of these are:

* Impulses/Gallon * Ounces/Minute * Volt

* Impulses/Liter * Gallons/Minute * Ampere

* Impulses/Revolution * CC/Minute * RPM

* Revolutions/Minute * Pound/Minute * Hertz

* Centipoises * Feet/Minute * PSI

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USING THE EMO-1005

FLO

7

TOT

5

SPC

9

CHA

A/B

4

5

RAO

6

LIM

A+B

1

A

2

B

3

KFR

0

DP

.

ENT

KFA

The EMO-1005 Keyboard

The keyboard has membrane type switches. There is no "click" heard or felt when pressing a key. The

press on the key must be very firm to activate the switch. This type of keyboard was selected to avoid

the likelihood of accidental programming.

Programming should in most cases be done once in a "lifetime" on the EMO-1005, so an

"user-friendly" keyboard is not really that necessary.

If frequent programming or changes in the programmed values or set-points is necessary, interfacing to

a PC through the serial port will make the programming task more "user-friendly".

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UNIT INITIALIZATION

When powering up the EMO-1005 unit, the following sequence will display system hardware and

software information.

LINE 1

Ram Test .................

or

Ram test .....................

LINE 2

Ram and no Bat Ram and battery

Line one indicates the RAM memory is being tested. Line two indicates whether the RAM memory

battery back-up is installed and operational.

The next display screen appears as follows:

LINE1

CH1=M/L CH2=R/

LINE 2

CH3=P/ CH4=OFF

where,

CH means channel

the channel number is indicated after the CH.

The letter after the "=" means:

M = Channel in question is in Monitoring Mode

P = Channel in question is in PID Mode

R = Channel in question is in Complex Ratio Mode

OFF = Channel is not installed or is not responding

After the "/", an "L" would indicate the Linearizer is active.

A blank would indicate the Linearizer to be OFF.

If the channel card is in the Gun-On Mode, Transparent Mode or Closed Loop Control (CLC)

Mode the channel will initialize as a P in the above screen.

The next screen is the operating screen with the channel information - actual rate/total values and

engineering units.

A sample of the screen if the unit receiving a frequency signal would appears as follows:

LINE 1

01:

500.00 Hz

LINE 2

01:

22245.0 Imp

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QUICK START

The EMO-1005 has several default values programmed in at the factory. This means you can hook it

up and test it out before any serious programming is necessary. The unit comes up in Monitor mode as

a default. The default rate scaling is 100 and the engineering units is Hertz (Hz). This means that a 100

Hz signal input on pin 4 will be displayed as 100 Hz on line 1. And the totalizer will display impulses

(Imp) on line 2. When a frequency is detected on either pin 3 or 4, the LED under the connector on the

back panel will start to blink at a steady rate.

SCREEN MANIPULATION

When the EMO-1005 is turned on it always returns to the last screen displayed before the unit was

turned off. The EMO-1005 screen is easy manipulated to show different information. To select a

different channel, press CHA and then the channel number, (1, 2,..) The channel will be displayed in

line 1. The former line 1 will scroll into the line 2 position. The information located in line 2 will scroll

off the display. It should be noted that the channel located in line 1 will be the channel which is

displayed when the status display mode is selected. Also, when line 1 is scrolled into line 2 it remains

in the current display mode and the new line 1 will also be in that mode unless otherwise changed.

NOTE: If the unit has 10 or more channels, channel selection is entered as: CHA and then channel

number, 01, 02.. 11 etc, and after channel number press ENT.

DISPLAY MODE SELECTION

There are four display modes on a standard EMO-1005: Rate, Total, Peak Rate and Simple Ratio.

The Rate Mode displays the current frequency coming into the EMO-1005. The Total Mode displays

the totalized amount of impulses received from the transducer or flowmeter. The Peak Rate will

display the highest rate reached during current readings. The Simple Ratio Mode displays the ratio

between channel 1 and the channel currently on line 1. To select a new display mode (Total/Rate or

Ratio) just press one of the TOT, FLO or RAO keys. This operation will change only line 1, not line

2. The display mode can be changed as many times as needed

.

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RATE

FLO

To display the rate press the FLO key. The Rate Mode displays the current

incoming frequency for the channel selected on line 1. The displayed frequency

is initially displayed in Hz. But the display can be programmed to any of the 28

familiar engineering units. For further information see the Programming section,

page 11.

The rate will be displayed in the following form:

LINE 1

01:XXXXX.XXXzzzz

LINE 2

where,

01: is the channel number

XXXXX.XXX is the derived rate

zzzz is the selected engineering units

Sample engineering units: Hz, GPM, cc/m, li/m, etc.

The default unit is Hz.

TOTAL

TOT

To display the totalized amount press the TOT key. The Total Mode displays

the current totalized incoming frequency on the channel selected in line 1. The

totalized amount is initially displayed in impulses but the display can be

programmed to any of 14 engineering units. For further information see the

Programming section, page 12 .

The totalized amount will be displayed in the following form:

LINE 1

01:XXXXX.XXXzzzz

LINE 2

where,

01: is the channel number

XXXXX.XXX is the derived totalized amount

zzzz is the selected engineering units

Sample engineering units: Imp, Gal, cc, REV, etc.

The default unit is Imp.

The Totalizer displayed on line one can be reset tozero by pressing the 0 (Zero) key on the

keyboard

.

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SIMPLE RATIO

RAO

There are two ratios available on the EMO-1005: the Simple Ratio and the

Complex Ratio. The Complex Ratio is a channel mode selection. This ratio

changes the inputs and outputs on the channel designated to be in the Complex

Ratio Mode. The Simple Ratio Mode however, does not affect anything on the

unit but the display screen. When the RAO key is pressed, the channel being

displayed on line 1 is changed to show a ratio of channel 1 divided by the

channel on line 1.

The Simple Ratio is displayed in the following form:

LINE

CH1/CHxx ZZZ.ZZZ

LINE

where,

CH1 means channel 1

/ means divided by

CH means channel

xx is the channel number on line 1

ZZZ.ZZZ is the ratio of this division

PEAK RATE

SPC

The Peak Rate Mode was added to give the user the ability to measure the

highest rate a transducer reaches. This is very useful in applications where the

rate is very inconsistent or unstable. By pressing the SPC key the unit will

measure the incoming frequency and display the rate on line 1. Remember, the

peak rate displayed will be that of the transducer plugged into the channel

located on line 1 of the operatin screen. The Peak Rate will be reset to Zero

when the Rate has been zero and starts again.

The peak rate will be displayed in the following form:

LINE 1

01/P XXXXX.XXzzz

LINE 2

where,

01 is the channel number

/P means Peak Rate Mode

XXXXX.XX is the derived peak rate

zzz is the selected engineering units

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STATUS DISPLAY MODE

Press the following key sequence:

CHA

->

DP

->

ENT

->

KFR

The status display will be displayed in the following form:

LINE 1

SDxx:XXXXPO/YYYY

LINE 2

AOzzzzAIyyyLOOIO

where,

xx: is the channel selected in line 1

XXXX is the input rate (frequency) in Hz

P indicates the mode: P = PID R = Complex Ratio

M = Monitor T = Transparent

G = Gun-On C = Closed Loop Control

O indicates the Linearizer, O= Not active, L=Active

/ separator

YYYY is the totalizer lowest 4 digits in impulses

AO stands for Analog Output (1024 steps). 51.2 steps/mA.

zzzz is the current Analog Output value in decimal

(range is 0 - 1023)

AI stands for Analog Input (256 steps). 12.8 steps/mA.

yyy is the 8-bit analog converter value (000 - 255)

L stands for Limits, O = Limit On, I = Limit Off

OOIO

^.. Limit 1 Output (ON) (terminal 14)

^... Limit 2 Output (OFF) (terminal 13)

^.... Limit 3 Output (ON) (terminal 12)

^..... Limit 4 Output (ON) (terminal 11)

(Terminal 15 is common for Limits)

The numbers for Digital input or Analog input/output are unscaled numbers. Rate Scaling or gain

factors will have no effect on these numbers. By pressing the CHA key and then number 1, 2 or 3....

the status of other channels can be displayed. By doing this the status of the channel in line 1 of the

normal operating screen will be displayed on line 1. To go out of the Status display and back to the

normal operating display, press the ENT key. Check the status display first if there are any problems

with any inputs or outputs.

The Limits in the Status Display have no validity in PID mode.

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PROGRAMMING THE EMO-1005

To enter the programming mode press the following key sequence:

CHA

->

DP

->

ENT

->

KFA

Now the display will show:

LINE 1

PROGRAMMING

LINE 2

0 = NO 1 = YES

If this screen did not come up then try the key sequence once more (press

slowly and firmly on the keys). If you would like to program press the 1 key;

if not, press the 0 key. Pressing the 0 key returns the unit to the normal

operating mode. If a 1 was pushed the following screen will appear:

LINE 1

ENTER CHANNEL

LINE 2

NUMBER=??

Enter the channel number that should be programmed and press the ENT key.

NOTE: Channel 1 = 01, 2 = 02 ....

Any mistakes made during programming in the next steps must be edited while at that screen. After

leaving any display you must toggle through the remaining displays to return to the operating screen

display. Then enter the programming mode again and toggle through until you get to the screen where

you want to edit the entered value.

Before entering any new data in any of the programmable parameters, zero out the old data first.

Then start to enter the new number. The numbers will be shifted to left as they are entered.

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In the following lines the menu questions are listed in the order they appear while in programming

mode:

QUESTION: ANSWER:

Display 1

RATE SCALING ?

0 = NO and 1 = YES

0 or 1 ENTER

Display 2

TOTALIZER SCALE?

0 = NO and 1 = YES

0 or 1 ENTER

Display 3

LIMITS? (none=0)

RATE=1 TOTAL=2

0, 1 or 2 ENTER

Display 4

ANALOG GAIN (KFA)

CURRENT=00000167

Enter new KFA

ENT alone is no change

(167 is default)

Display 5

OFFSET ANALOGOUT

CURRENT=00000205

Enter new number

ENT alone is no change

(205 is default)

Display 6

SAMPLE AMOUNT

CURRENT=00000008

Enter new number

ENT alone is no change (8 is default)

Display 7

CUTOFF FREQ.

CURRENT=00000050

Enter new number

ENT alone is no change (50 is default)

Display 8

ANALOG IN GAIN

CURRENT=00000000

Enter new number

ENT alone is no change (0 is default)

(Only used in PID Mode)

In the following sections, all of the previous displays will be explained in detail.

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RATE SCALING - KFR (Display 1)

By answering with a 0 the scaling will be skipped.

By answering with a 1 the following display appears:

CURRENT KFR/UNIT

XXXXXXXX.X YYYY

where,

XXXXXXX.X is the current rate scaling

YYYY is the selected engineering units

The EMO-1005 is programmed, at the factory, to calculate the incoming frequency in Hertz (Hz). In

order to make the EMO-1005 show a more convenient engineering unit, such as GPM, an appropriate

scaling factor must be applied. This factor is called the KFR and is calculated by applying the K-factor

of the transmitter that is being monitored. The K-factor is the number of impulses per engineering unit

and is published by the transmitter manufacturer or established by a calibration test. (AW-Company

provides a calibration test sheet with every flow meter).

For example a flowmeter could have a K-factor of 6304 imp/Gal or 329.22 imp/lit. A rpm pickup

could be 34.66 imp/rev.

In order to calculate the KFR multiplier for the EMO-1005 apply the following formula.

6000

KFR =

K-factor

where,

KFR is the number that should be entered in to the RATE SCALING display (Display1)

K-factor is the number published by the manufacturer as the average K-factor for the

transmitter.

100 is the constant if the time base is seconds.

6000 is the constant when the time base is minutes.

360000 is the constant when the time base is hours.

For example:

A flowmeter has the K-factor 2053.7 imp/Gal and the display should show Gallons/minute.

6000

KFR = = 2.921 GPM

2053.7

When entering the number into the EMO-1005 keep in mind that the maximum number is 65000

(regardless where the decimal point is.)

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Note: This is merely a convenient display function.

The actual units are scaled thru the KFR factor.

Decimal Point Location

In order to change the scaling just enter the number, and change the decimal point location by pressing

the DP key. After having the desired number in the display press the ENT key once.

Engineering Units

Now by pressing the SPC key the unit display can be changed to one of the following engineering

units:

Hz, GPM, li/m, ci/m, cc/m, lb/m, lb/s, lb/h, gr/s, kg/m,

gr/m, mm/s, cm/m, in/m, ft/m, oz/m, Volt, mV, Amp, mA, PSI,

Bar, F, C, RPM, SSU, cSt, cPs.

Press Enter to exit the KFR scaling.

The default value for the KFR is 0000100.0 (Maximum= 65000) The default engineering unit is Hz

(Hertz).

We recommend removing the insignificant decimal numbers often produced by calculator

mathematics. These are mathematically redundant and may offer a misleading level of precision in the

display. We recommend using a maximum of 4 digits, irrespective of the decimal point position.

Example: 60.675 is no good; better: 60.6

2.3456 is no good; better: 2.345

TOTALIZER SCALING - KFT (Display 2)

By answering with a 0 the scaling will be skipped.

By answering with a 1 the following display appears:

CURRENT KFR/UNIT

XXXXXXXX. YYYY

where,

XXXXXXXX. is the current total scaling

YYYY is the selected engineering units

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In order to make the EMO-1005 display show the desired engineering units, the most important thing

to know is the K-factor of the transmitter that is being monitored. The K-factor is the relationship

between the amount of impulses and the engineering unit.

To change the scaling just enter the number, (zero the display first) and to change the decimal point

location press the DP key. After having the decimal point in the correct location press the ENT key

once. Now, by pressing the SPC key the unit display can be changed to one of the following

engineering units: Imp, Gal, lit, cin, cc, lbs, kg, gr, mm, cm, Inch, ft, Oz, Rev.

Press Enter to exit KFT programming.

The default value for the KFT is 00010000 (Maximum= 65000)

The default engineering unit is Imp (Impulses)

For example a flowmeter's K-factor could be 1998 imp/Gal or 123.22 imp/lit. A rpm pickup could be

55.0 imp/rev.

In order to calculate the KFT multiplier for the EMO-1005 apply the following formula.

10000

KFT =

K-factor

where,

KFT is the number that should be entered for TOTALIZER SCALING in display 2.

K-factor is the number published by the manufacturer as the average K-factor of the

transmitter. If this is published in imp/gal the totalizer can still be set in, say cc's, by

converting the K-factor to imp/cc.

10000 is a constant.

For example:

A flowmeter has the K-factor 10666.0 imp/Gal and the display should show gallons/minute.

10000

KFT = = 0.9376 Gal

10666.0 Gal

In the above example enter 9-3-7 (zero the display first, and don't enter the number 6) and then adjust

the decimal point by pressing DP until the point appears at the correct position. After pressing the ENT

key, the engineering unit may now be chosen by pressing the SPC key until the correct unit comes up.

Now, by pressing the ENT key the KFT number and engineering unit will be stored in memory.

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LIMITS PROGRAMMING (Display 3)

LIMITS? (none=0)

RATE=1 TOTAL=2

By answering with a 0 the scaling will be skipped

By answering with a 2 go to the next section

There are a total of 4 limits per channel. Each of the limits can be a totalizer or rate limit. If the limit

has been programmed for total and rate, the output will respond to the one that occurs first. This can

produce unexpected limit initiation therefore you should be careful to avoid this type of programming

duplication.

The limits are always programmed in:

- rate limit in Hertz 000000.00 Hz

- total limit in impulses 00000000. Imp.

In order to program the limits it is necessary to know the K-factor of the transmitter.

For example:

A flow meter has a K-factor of 8000 imp/Gal. Limit 1 should

turn on when ever the flow exceeds 3.22 GPM and limit 2

should turn on when ever the totalized flow has reached 2.50

Gallons.

8000 * 3.22 imp

LIMIT 1 = = 429.33 Hz

60 sec

LIMIT 2 = 2.50 * 8000 imp = 20000 imp

To check whether a limit is ON or OFF, go into the Status Display Mode for the channel in question.

(see page 8)

WARNING!! Never enter two different limits, Rate and Total, under the same limit number.

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NEVER ENTER RATE AND TOTAL LIMITS UNDER SAME NUMBER

RATE LIMIT

By answering with a 1 the following display appears:

RATE LIMIT NO ?

ENTER 1 ........4

Select the rate limit that needs to be changed. Do this by pressing a number 1...4 Now the display will

show the selected limit in the following fashion:

CURRENT RATE Y

LIMIT XXXXXX.XX

where,

Y indicates the limit number selected

XXXXXX.XX indicates the current rate limit in Hertz

To change the limit enter the right number and press ENT After entering the number the display

returns to the Limit Main Menu.

The default values for all rate limits is 000000.00

The maximum number is 999999.99

The decimal is fixed at 000000.00

TOTAL LIMIT

By answering with a 2 the following display appears:

TOTAL LIMIT NO ?

ENTER 1 ........4

Select the total limit that needs to changed. Do this by pressing a number 1...4 Now the display will

show the selected limit number (Y) and current rate in impulses. (XXXXXX.XX)

CURRENT TOTAL Y

LIMIT XXXXXX.XX

To change the limit enter the right number and press ENT. After entering the number the display

returns to the Limit Main Menu.

The default value for all total limits is 00000000.

The maximum is 99999999.

The total limit decimal point is fixed at 00000000.