Digi-Star EZ 320 User Manual

The "EZ 320" Electronic Scale Indicator

Operation & Installation Manual

FEATURES: The "EZ 320" Model has enhanced features such as:

- Scrolling Help Messages for EZ recipe programming & operation.

- Up to 81 different batching recipes.

- Three recipe programming modes - Percent of total, Pounds per animal, or Pounds
per Ingredient.

- Ingredients can be entered in any order.

- Large 1 inch alpha-numeric display for greater readability.

- Front Panel Calibration without simulator or weights.

- Fiber-optic backlighting for extremely long life.

- Optional European Compliance ( mark) for use in the European Community

OPERATING SPECIFICATIONS:

Accuracy ......................... 0.1% with System Accuracy depending on load cells used

Temperature Range ............................................. -20 to 140 degrees F

Power Requirements .................................................10½ - 16 VDC

DIGI-STAR

790 WEST ROCKWELL AVENUE

FORT ATKINSON, WISCONSIN 53538

PHONE [phone]

TECHNICAL SERVICE [phone]

F3287 Rev. B 9/96 © 1992-96 DIGI-STAR Printed in U.S.A.

Table of Contents

MODEL 320 - System Operation: ........................................ 1

Turning ON the Scale: ............................................. 1

Turning OFF the Scale: ............................................ 1

To Zero-Balance the Scale: ........................................ 1

Using the Help Key: .............................................. 2

To Select Gross Mode: ............................................ 2

To Select Net Mode: .............................................. 2

To Enter a Preset: ................................................ 3

"GROSS MODE" ................................................ 3

"LOAD/UNLOAD MODE" .......................................... 3

"NET MODE" ................................................... 3

To Clear the Preset Alarm: ......................................... 4

To Preload a Tare Value: .......................................... 4

Using the Pre-Alarm: .............................................. 5

Changing Pre-Alarm Weight: ..................................... 5

To Start the Mix Timer: ............................................ 6

To Clear the Mix Timer: ............................................ 6

To Re-Start the Mix Timer: ......................................... 6

Entry Methods: .................................................. 7

To Change the Entry Method: .................................... 7

To Program a New Recipe: ........................................ 12

To Edit a Recipe: ................................................ 13

To Erase a Recipe: .............................................. 14

Using the Auto Advance Feature: ................................... 15

Using Tolerance: ............................................. 15

To Change the Tolerance: ...................................... 15

Using Delay Time: ............................................ 16

To Change the Delay Time: ..................................... 16

To Load a Batch Using a Recipe: ................................... 17

MODEL 320 - Installation Requirements: ................................ 19

Indicator Mounting: ................................................ 19

Power Connection: ................................................ 19

Remote Alarm Connection: .......................................... 19

Remote Input Connection: ........................................... 19

Load Cell Connection: .............................................. 19

Lightning Protection: ............................................... 19

Remote Display: .................................................. 20

TR-TR4: Radio Control Operation .................................... 20

To Print Weight Data: .............................................. 20

To Print the Recipe Memory: ......................................... 20

To Print a Single Recipe: ........................................... 20

To Enter ID Numbers-I.D.#: .......................................... 21

To Display ID Numbers-I.D.#: ........................................ 21

Black Out: ....................................................... 21

Pulsed Output: ................................................... 22

Animal Weighing: ................................................. 22

MODEL 320 - System Operation:
Turning ON the Scale: To Zero-Balance the Scale:

Step 1) Press [ON]. Step 1) Press the [NET/GROSS] key and

within three seconds,
Step 2) press the [ZERO] key.

A brief message is displayed (such as

"HELLO"). The scale enters GROSS weighing

mode. Pressing [ON] a second time during
normal system operation starts the self test.

A warm up period of ten to fifteen minutes
provides the most accurate readings. If the
scale is holding a load for a long period of
time (ex. overnight), the weight displayed may The ZERO/BALANCE will "balance off"
vary because of zero shift created by changes trailer, bin, or platform weight.
in temperature. This does not affect the
accuracy of the scale. "ZERO" is displayed to show completion of

the step and the scale is then placed in the
For example, if the system was loaded with GROSS mode.
1000 Lbs, it might read 1200 Lbs the following
day. The change in temperature "zero shifted" Pressing only the [ZERO] key will cause the
the ZERO/BALANCE from 0 Lbs to 200 Lbs. message "TO ZERO/BALANCE PRESS
When unloading the scale, the display will NET/GROSS - THEN ZERO" to be displayed.
count from 1200 to 200 Lbs for a total of 1000
Lbs. If the supply power is below the "low battery

threshold" (10.5 Volts), the message

Turning OFF the Scale: "INDICATOR CANNOT BE ZE-

RO/BALANCED - LOW BATTERY VOLT-

Step 1) Press [OFF]. AGE" is displayed. The message "LO BAT" is

periodically shown on the display (approx.

every five seconds) to alert the operator of the

low battery condition.

Loss of power does not affect the

ZERO/BALANCE or "Setup/Calibration"

values.

1

MODEL 320 - System Operation:
Using the Help Key: NOTE: The scale is in GROSS mode if there is

a flashing arrow pointing toward the GROSS

The [HELP] key provides additional infor- text above the [NET/GROSS] key.
mation about the weighing modes, set­up/calibration, and recipe programming.

To Select Net Mode:
Step 1) Pressing [HELP] while displaying
weight will display information about the last NET mode displays the weight change after a
key pressed. TARE has been performed. TARE is a

temporary "zero" point.

Step 1) If the scale "TARE" weight has not

been entered, press [TARE] to acquire a

"zero".

To Select Gross Mode:

GROSS mode displays the weight change
since the unit was last ZERO/BALANCED.

or
Step 1) Press [NET/GROSS].

Step 2) If in Gross mode, press

[NET/GROSS]. The [NET/GROSS] key is an

alternating action key. If the scale is in the

GROSS mode, pressing the [NET/GROSS]

key places it in the NET mode. If the scale is

in the NET mode, pressing the [NET/GROSS]

key places it in the GROSS mode. If in

LOAD-UNLOAD mode, press [NET/GROSS]

two (2) times.

If the "TARE" function has not been

previously performed, the unit will stay in the

GROSS mode and the message "FOR NET

MODE PRESS TARE" scrolls across the

display.

NOTE: The scale is in NET mode if there is a

flashing arrow pointing toward the NET text
Press the [NET/GROSS] key if in the NET or just above the [TARE] key.
LOAD/UNLOAD mode.

2

MODEL 320 - System Operation:
To Enter a Preset: The three display modes are:

A "preset" is a weight amount that can be "GROSS MODE"
set in the scale. The scale will activate The gross weight is displayed by pressing the
alarms once that weight amount has been [NET/GROSS] key. As ingredients are loaded,
either removed or added. the weight display counts upward toward the

preset value. As ingredients are unloaded the
Step 1) Use the numeric keypad to enter the weight display counts down to the preset
desired preset weight value. value.

Step 2) Press either [NET/GROSS] or "LOAD/UNLOAD MODE"
[LOAD/UNLOAD] to enter the preset value Press the [LOAD/UNLOAD] key to display
and select the "display mode". the amount remaining to be loaded or

unloaded. As ingredients are loaded OR
The 'PRESET' annunciator outer triangle will unloaded, the display counts down from the
turn ON when the preset amount is entered. entered preset weight until it reaches zero.

"NET MODE"

The weight added since the preset has been

entered is displayed by pressing the

[NET/GROSS] key two (2) times if in the

LOAD/UNLOAD mode, one (1) time if in the

GROSS mode. As ingredients are loaded, the

weight display counts upward, as they are

unloaded the weight display counts down.

Once the preset has been entered, the display
shows the weight data in one of three (3)
different "display modes".

Switching between these display modes is

possible at any time by simply pushing the

appropriate keys.

Before the preset weight is reached, the pre-

alarm is activated. This causes the preset

display annunciator, the front panel alarm

light, the output relay, and the alarm horn all

to pulse in sequence with the alarm light. Set

the pre-alarm value to "0" to prevent the alarm

output from pulsing.

When the preset weight is reached, the front

panel alarm light, the output relay, the

'PRESET' annunciator, and the alarm horn will

all be held ON.

3

MODEL 320 - System Operation:
To Clear the Preset Alarm:

The preload tare feature is useful for weighing
Step 1) Press the [CLEAR] key twice. containers after they have already been

loaded. If the weight of the container is

known, this "tare weight" is preloaded into

the scale and the net weight is displayed. The

"tare weight" is also sent to the printer.

This sets the display to zero's "000000" and
returns the scale to weighing.

By pressing the [CLEAR] key only once, a
new preset can be entered.

The current preset alarm condition is also
cleared if reloading a preset using the
"REMOTE ENTER PRESET" feature. This
feature is selected by setting Remote Input to
'PRESET' in the Long Form Setup. It is
activated by using the 20R TR option or by
momentarily connecting the "REMOTE" line The following example demonstrates a feed
in the power cord to +12 Volts DC. wagon on a platform scale:

Using the "REMOTE ZERO" feature of the Step 1 - Balance the scale.
20R TR option or "REMOTE" line in the Step 2 - Weigh and record the weight of
power cord also clear the preset. the unloaded wagon.

Step 3 - Pull the wagon off the scale and

load.

Step 4 - Enter the wagon's tare weight.
To Preload a Tare Value: Step 5 - Place loaded wagon back on the

scale to see net weight.
The scale also allows the "tare weight" to be
entered via the numeric keypad. This is
performed by entering the weight value on the
keypad and then by pressing the [TARE] key.

4

MODEL 320 - System Operation:
Using the Pre-Alarm: Step 3) Use the numeric keypad to select a

Pre-Alarm weight.
The Pre-Alarm feature is an "early warning"
for the preset. For example, if the Pre-Alarm is
set to 100 and the preset is 1000, the preset
alarms flash during the last 100 lbs/kgs of
thepreset. The alarms are continuous once the
preset is active. This allows more accuracy in
reaching the preset.

Changing Pre-Alarm Weight:
Step 1) Press and hold the [NET/GROSS] key,

then press the [ON] key. Continue holding
both keys until the indicator beeps and
displays the message " P-ALM". The 'CAL'
annunciator flashes and the current Pre-Alarm
weight is displayed.

Step 2) Press the [CLEAR] key to erase the
current weight value.

Step 4) Press the [ON] key. The display will

advance to the next setup value.

Step 5) To exit setup and return to weighing,

press and hold the [TARE] key, then press the

[ON] key.

5

MODEL 320 - System Operation:

To Start the Mix Timer: The display now reads HOURS, MINUTES,

and SECONDS (HH:MM:SS), separated by
There are two ways to start the Mix Timer. colons that flash every second.

Step 1) Press the [TIMER] key to see the time
currently set. The [NET/GROSS] and [TARE]
keys can then be used to change the displayed
value.

The [NET/GROSS] key increments the
"flashing" digit and the [TARE] key selects
which digit of the display is flashing.

When the correct time has been entered or if
the number displayed is acceptable, press the
[TIMER] key to set the time and start the Mix
Timer.

or
Step 2) Use the numeric keypad to select the

amount of time. Then press the [TIMER] key
to enter the time.

To Clear the Mix Timer:

Step 1) Press either the [CLEAR] or [TIMER]

key. The scale clears the mix timer alarms and

enters the weighing mode.

6

MODEL 320 - System Operation:
To Re-Start the Mix Timer:

Entry Method #3 - Amount per Load.

Step 1) Press the [TIMER] key twice (2) Program the ingredient amounts required per
without entering a numeric value to start the load. When recipe is loaded and indicator
mix timer using the time previously entered. flashes "TOTAMT", the total amount

programmed for that recipe is displayed.
Entry Methods: Press [LOAD/UNLOAD] to accept that

amount or enter a new total amount and the
There are three (3) different methods for scale calculates new preset amounts.
programming recipes:

Example: A recipe had been programmed
Entry Method with 5500 Lbs of haylage and 4500 Lbs of
1 - Amount per Animal shell corn. The recipe was then loaded for
2 - Percent (%) per Load a "TOTAMT" of 10,000 Lbs. The scale
3 - Amount per Load calculated presets for 5500 Lbs of haylage

and 4500 Lbs of shell corn.

NOTE: Recipes programmed in one method
will not be converted if a new entry method is This same recipe could have been changed
selected. To convert a recipe to a new method, the "TOTAMT" to 9,000 Lbs and the scale
erase and then re-program the recipe. would have calculated presets for 4950 Lbs of

haylage and 4050 Lbs of shell corn.

Entry Method #1 - Amount per Animal.

Program the ingredient amounts required for
feeding one (1) animal. When recipe is loaded To Change the Entry Method:
and indicator flashes "ANIMAL", enter the
number of animals to be fed. The scale Step 1) Enter the "Long Form Setup Mode"
calculates the preset amounts required for by pressing and holding the [NET/GROSS]
each ingredient. key and then pressing the [ON] key. Continue

holding both keys until the indicator beeps
Example: A recipe had been programmed and the scale displays the message "P-ALM".
with 18 Lbs of haylage and 16 Lbs of
shell corn for one (1) animal. The recipe
was then loaded for 100 "ANIMAL"'s.
The scale calculated presets for 1800 Lbs
of haylage and 1600 Lbs of shell corn.

Entry Method #2 - Percent (%) per
Load/Animal.

Program the ingredient amounts in
percentages (%). When recipe is loaded and
indicator flashes "TOTAMT", enter the total
amount to be loaded. The scale calculates the
preset amounts required for each ingredient.

Example: A recipe had been programmed
with 55% of haylage and 45% of shell
corn. The recipe was then loaded for a
"TOTAMT" of 10,000 Lbs. The scale
calculated presets for 5500Lbs of haylage
and 4500 Lbs of shell corn.

7

MODEL 320 - System Operation:

The "CAL" annunciator will be flashing.
Press the [ON] key until "E MTHD" is
displayed.

To select the recipe entry method.
Step 2) Press [NET/GROSS]

until the correct number is
displayed.

Entry Method
1 - Amount per Animal
2 - Percent (%) per Load
3 - Amount per Load

Step 3) Press the [ON] key. The display
advances to the next setup value.

Step 4) To exit setup and return to weighing,
press and hold the [TARE] key, then press the
[ON] key.

8

MODEL 320 - System Operation:

These examples are shown to illustrate the three different program entry methods available. Each
method can be used to obtain the same results, the choice is yours. Note that Recipe #5 includes
some of the same ingredients as Recipe #12, but are loaded in a different sequence to illustrate the
flexibility of programming to match actual loading sequence.

SAMPLE FEED SHEET - RECIPE #12

To Program

PROGRAM ENTRY METHODS AVAILABLE

RECIPE #12 (CHOOSE ONE)

INGREDIENT AMT. PER AMOUNT

INGREDIENT NAME NUMBER ANIMAL % PER LOAD PER LOAD

(1) Haylage 3 18.0 34.62 1800

O O

(2) High Moisture Corn 9 10.0 19.23 1000

R R

(3) Corn Silage 5 24.0 46.15 2400

Total 52 Lbs 100.00 5200

To Load

AMT. PER AMOUNT PER

ANIMAL % PER LOAD LOAD

ACCEPT 5200

ENTER # OF ENTER LOAD OR ENTER

RECIPE #12 ANIMALS SIZE NEW SIZE

INGREDIENT

INGREDIENT NAME NUMBER || 100 ANIMALS || 5200 || 5200

O O
R R

(1) Haylage 3 1800 1800 1800
(2) High Moisture Corn 9 1000 1000 1000
(3) Corn Silage 5 2400 2400 2400

Total 5200 5200 5200

9

MODEL 320 - System Operation:

SAMPLE FEED SHEET - RECIPE #5

To Program

PROGRAM ENTRY METHODS AVAILABLE

RECIPE #5 (CHOOSE ONE)

INGREDIENT AMT. PER AMOUNT

INGREDIENT NAME NUMBER ANIMAL % PER LOAD PER LOAD

(1) Corn Silage 5 15.0 37.5 1800
(2) Haylage 3 14.5 36.25 1740

O O
R R

(3) Soy Bean 10 2.3 5.75 276
(4) Cotton Seed Hulls 12 8.2 20.50 984

Total 40 Lbs 100.00 4800

To Load

AMT. PER AMOUNT PER

ANIMAL % PER LOAD LOAD

ACCEPT 4800

ENTER # OF ENTER LOAD OR ENTER

RECIPE #5 ANIMALS SIZE NEW SIZE

INGREDIENT || 120

INGREDIENT NAME NUMBER ANIMALS || 4800 || 4800

(1) Corn Silage 5 1800 1800 1800

O O
R R

(2) Haylage 3 1740 1740 1740
(3) Soy Bean 10 276 276 276
(4) Cotton Seed Hulls 12 984 984 984

Total 4800 4800 4800

10

MODEL 320 - System Operation:

SAMPLE FEED SHEET - RECIPE #17

1: Amount per Animal -

Recipe amounts programmed for Ingredient presets for a 100 animal load.
1

animal.

Haylage = 18 Lbs
Corn Silage = 10 Lbs Corn Silage = 1000 Lbs
HM Shell Corn = 16 Lbs HM Shell Corn = 1600 Lbs
Soy Hulls = 02 Lbs Soy Hulls = 200 Lbs
Soybeans = 06 Lbs Soybeans = 600 Lbs
_________________________ __________________________
TOTAL = 52 Lbs TOTAL = 5200 Lbs

X 100 Haylage = 1800 Lbs

2: Percent per Load - %

Recipe amounts programmed in % Ingredient presets for 5200 lb load.
for Total Load

Haylage = 34.60 % Haylage = 1800 Lbs
Corn Silage = 19.23 % Corn Silage = 1000 Lbs
HM Shell Corn = 30.77 % HM Shell Corn = 1600 Lbs
Soy Hulls = 03.85 % Soy Hulls = 200 Lbs
Soybeans = 11.55 % Soybeans = 600 Lbs
_________________________ __________________________
TOTAL = 100.00 % TOTAL = 5200 Lbs

.

3: Amount per Load - Lbs

Recipe amount programmed in Total Ingredient presets for 5200 lb load.
Lbs/Load

.
Haylage = 1800 Lbs Haylage = 1800 Lbs
Corn Silage = 1000 Lbs Corn Silage = 1000 Lbs
HM Shell Corn = 1600 Lbs HM Shell Corn = 1600 Lbs
Soy Hulls = 200 Lbs Soy Hulls = 200 Lbs
Soybeans = 600 Lbs Soybeans = 600 Lbs
__________________________ __________________________
TOTAL = 5200 Lbs TOTAL = 5200 Lbs

11

MODEL 320 - System Operation:

Step 3) The EZ 320 then displays a message

To Program a New Recipe: indicating the "entry method" to be used:
Enter the program mode by pressing and 1 - Pounds per Animal.

holding the [PROGRAM] key and then 2 - Percentage of Total Load.
pressing the [ON] key. Continue holding both 3 - Ingredient in Pounds.
keys until the indicator beeps and the scale
displays the message "PROGRM". The Note: For more about entry methods see page
"recipe program annunciator" flashes. 23.

Step 4) "ING-__" is displayed immediately
following the entry message.

The scale then displays the first formula
number programmed "REC-XX" or will
display "REC-__" indicating that a recipe
number can be entered.

Use the numeric keypad to select the
ingredient number. Then press [INGR.#].
NOTE:Ingredient numbers DO NOT have to
be in sequence.

Step 5) "AMOUNT" will be shown on the
display followed by the prompt for the
ingredient amount with the display
"YY:XXXX".

The first two digits, "YY" represent the
ingredient number. The last four digits,

Step 1) Press [CLEAR]. "XXXX" represent the amount for this

ingredient.

In this example, ingredient number "05" is
shown with an ingredient amount of "500".

Use the numeric keypad to select the four (4)

digit ingredient value. Then press
Step 2) Then use the numeric keypad to select [LOAD/UNLOAD] to enter the value.
the recipe number. Then press [RECIPE #] to
enter the recipe number.

12

MODEL 320 - System Operation:
Step 6) The scale will display the message Method 2:

"STORED" indicating that the ingredient has
been saved into non-volatile memory.

Step 7) Continue steps 4 through 6 until all
ingredients have been entered.

Step 8) Press [RECIPE#] to complete the
recipe. The scale will now calculate and
display the "TOTAL" value of the recipe.

Step 9) Repeat steps 1 through 8 until all
recipes have been entered.

Step 10) Press [PROGRAM] to exit the
"recipe programming mode" and enter the
weighing modes.

To Edit a Recipe:
To enter the program mode press and hold the

[PROGRAM] key and then press the [ON]
key. Continue holding both keys until the
indicator beeps and the scale displays the
message "PROGRM". The "recipe program
annunciator" will be flashing.

Step 1) Press [CLEAR].

The scale then displays the first formula
number programmed "REC-XX". Use one of Step 2) Then use the numeric keypad to select
the following methods to select the recipe to the recipe number. Then press [RECIPE #] to
edit: enter the recipe number.

Method 1: Step 3) The EZ 320 will then display a

message indicating the "entry method" to be

used:
Step 1) Press [RECIPE#] until 1 - Pounds per Animal.
the desired recipe number 2 - Percentage of Total Load.
is displayed. 3 - Ingredient in Pounds.

Step 4) The ingredient number and amount
Step 2) Then press [INGR#] will be displayed "YY:XXXX".
to edit this recipe. Now go
to Step 3. The first two digits, "YY" represent the ingre-

dient number. The last four digits, "XXXX"

represent the amount for this ingredient.

13

MODEL 320 - System Operation:

Continue holding both keys until the indicator

beeps and the scale displays the message

"PROGRM". The "recipe program

annunciator" will be flashing.

In this example, ingredient number "05" is
shown with an ingredient amount of "500".

Step 5) Pressing [INGR.#] will advance the
scale to the next ingredient of the recipe.
Press [INGR.#] until the desired ingredient is
displayed.

Step 6) Press [CLEAR] and then use the
numeric keypad to select the four (4) digit
ingredient value. Press [LOAD/UNLOAD] to
enter the value.

Step 7) The scale will display the message
"STORED" indicating that the ingredient has
been saved into non-volatile memory. Non-
volatile memory is a special type of memory
that allows the power to be removed from the
scale without losing any of the recipes.

Step 8) Continue steps 5 through 8 until the
desired changes have been made.

Step 9) Press [RECIPE#] to complete the
recipe. The scale will now calculate and
display the "TOTAL" value of the recipe.

The scale then displays the first formula

number programmed "REC-XX". Use one of

the following methods to select the recipe to

erase:

Method 1:

Step 1) Press [RECIPE#] until

the desired recipe number is

displayed, then go to Step 3.

Method 2:

Step 10) Press [PROGRAM] to exit the
"recipe programming mode" and enter the
weighing modes.

NOTE: Ingredient amounts can be changed,
but to add ingredients to a recipe, first erase
that recipe and then re-program the recipe.

To Erase a Recipe:
To enter the program mode press and hold the

[PROGRAM] key and then press the [ON]
key.

Step 1) Press [CLEAR].

14

MODEL 320 - System Operation:

Step 2) Then use the numeric keypad to counter every time the weight moves out of
identify the recipe number to be erased. the tolerance window. If enabled, "motion

detection" also resets the "delay time"

counter.
Step 3) Press the [ZERO] key.

If the tolerance for that ingredient is exceeded,

the message " OVER " is displayed alternately
Step 4) Press and hold the [ZERO] key, then with the weight value. During this time the
press the [ON] key to erase the recipe. scale WILL NOT auto-advance. This allows
Continue holding both keys until the indicator the operator the opportunity to remove the
beeps and displays the message "RECIPE XX excess weight. If the additional weight for the
ERASED". ingredient is acceptable, press either [PRINT]

or [INGR.#] to advance to the next ingredient.

Setting tolerance to " OFF" allows the scale to

always auto-advance after the ingredient

amount has been loaded regardless of
Step 5) Press [PROGRAM] to exit the "recipe additional weight.
programming mode" and enter the weighing
modes.
To Change the Tolerance:
To erase all recipes, Continue steps 1 through
4 until all the recipes have been erased. Step 1) To enter the "Long Form Setup Mode"

press and hold the [NET/GROSS] key and

then press the [ON] key. Continue holding

Using the Auto Advance Feature: both keys until the indicator beeps and the

scale displays the message "P-ALM" followed
The auto advance feature allows for hands by the current pre-alarm weight. The "CAL"
free operation of programmed recipes. The annunciator will be flashing.
indicator prints and advances to the next
ingredient once the motion, tolerance, and
delay time requirements have been met.

Using Tolerance:
The Tolerance feature is a "tolerance window"

for the preset ingredient during batching. For
example, if the tolerance is set to 5 (%) and
the preset is 1000, the "tolerance window" is
±50. So the scale is in the "tolerance window"
when the display is between 50 and -50.

The auto-advance circuitry of the recipe
function activates the "delay time" counter
while the weight is in the "tolerance window".
The alarms sound continuous at this time and
the preset is considered active. This allows the
operator to slightly "under or over shoot" an
ingredient amount and still automatically
advance to the next ingredient. The auto­advance circuitry resets the "delay time"

15

MODEL 320 - System Operation:

Press the [ON] key until "TOLER" is circuitry starts the "delay time" counter. If the
displayed. preset de-activates, the delay time counter is

reset, therefore assuring that the preset weight
To select the amount (by percentage) that an amount has to be met for the total delay time
ingredient can be under/over-loaded and still amount.
automatically advance,

Setting Delay Time to "MANUAL" prevents
Step 2) Press [NET/GROSS]. the scale from EVER auto-advancing,

regardless of the weight. Pressing either the
Set to " OFF " to always advance after the [INGR.#] or [PRINT] key twice advances the
ingredient amount has been reached. recipe to the next ingredient. The first press

completes the current ingredient and enters a
Tolerance Percentage Settings "lock weight mode". This allows the scale
OFF, 0.5, 1, 2, 3, 4, 5, 7, or 10 system to be moved to a new location without

affecting the weight amount of the next
Step 3) Press the [ON] key. The display will ingredient. The second press advances the
advance to the next setup value. scale recipe to the next ingredient.

Step 4) To exit setup and return to weighing, After all ingredients have been loaded, the
press and hold the [TARE] key, then press the scale displays the message: "RECIPE
[ON] key. COMPLETE TOTAL = XXXXXXLB".

Using Delay Time:
The Delay Time feature allows an operator to

select the amount of time the scale should wait
before automatically advancing to the next
ingredient of the recipe. This helps insure
accuracy for the ingredient amount. For
example, if the delay time is set to 10
(seconds) and the preset alarms are activated
continuously, the auto-advance

To Change the Delay Time:

Step 1) To enter the "Long Form Setup Mode"

press and hold the [NET/GROSS] key and

then press the [ON] key. Continue holding

both keys until the indicator beeps and the

scale displays the message"P-ALM" followed

by the current pre-alarm weight. The "CAL"

annunciator will be flashing.

16

MODEL 320 - System Operation:

Press the [ON] key until the message
"DELAY" is displayed.

To select the delay time (in seconds) to wait
before automatically advancing,

Step 2) Press [NET/GROSS].

Set to "MANUAL" to prevent advancing after
the ingredient amount has been reached.

Delay Time Selections in Seconds
MANUAL, 1, 2, 3, 5, 7, 10, 20, 30, or 60

Step 3) Press the [ON] key. The display will
advance to the next setup value.

Step 4) To exit setup and return to weighing,
press and hold the [TARE] key, then press the
[ON] key.

Step 2) Press [LOAD/UNLOAD]

to accept the recipe.

Go to Step 3.

Method 2:

Step 1) Press [CLEAR].

Step 2) Then use the numeric keypad to select

the recipe number. Then press [RECIPE#].
To Load a Batch Using a Recipe:

Step 3) The scale displays the message
Either of the following methods can be used "LOADING RECIPE XX" and "TOTAMT".
to load a recipe while in the weighing modes: The message "TOTAMT" represents either the

"total amount to be loaded" or the "total
Method 1: amount of animals" for that recipe.

Step 1) Press [RECIPE#] until the To accept the total displayed,
desired recipe number is displayed. press [LOAD/UNLOAD].

17

MODEL 320 - System Operation:
or,
To change the "TOTAMT" perform the To Review a Recipe:

following steps 4 and 5.

Step 4) Press [CLEAR]. Step 1) Press [RECIPE#]. The

scale displays the first recipe

loaded in memory. Press
Step 5) Then use the numeric keypad to enter [RECIPE#] until the desired
a new total amount value. To accept the new recipe number is displayed.
total displayed, press [LOAD/UNLOAD].

All ingredient amounts are automatically re- Step 2) Press [INGR.#]. This
calculated to provide the new total amount. displays the ingredients of the

recipe.

Now the recipe is loaded! Step 3) Repeat step 2 to display all ingredients.

Step 4) Continue to press [RECIPE] until all
The scale displays the first ingredient number recipes have been displayed or press
to be loaded and then displays the ingredient [CLEAR] to exit the "recipe review mode".

amount to be loaded. These two values are
alternately displayed until 5 percent of the
ingredient is either loaded or unloaded.

If using the auto-advance feature, and the
weight is within the "tolerance" range, the
alarms activate. This causes the internal
"delay timer" to begin counting off the
seconds required before automatically
advancing onto the next ingredient.

Pressing the [INGR.#] or [PRINT] key also
completes that ingredient and advances the
scale to the next ingredient of the recipe.

If Delay Time is set to "MANUAL", the recipe
does not advance until either the [INGR.#] or
[PRINT] key is pressed twice. The first press
completes the current ingredient and enters a
"lock weight mode". This allows the scale
system to be moved to a new location without
affecting the weight amount of the next
ingredient. The second press advances the
scale recipe to the next ingredient.

After all ingredients have been loaded, the
scale displays the message: "RECIPE
COMPLETE TOTAL = XXXXXXLB".

18

MODEL 320 - Installation Requirements:

Indicator Mounting:

The indicator is easily attached to the Indicator
Mounting Bracket by hooking the top over the
plate and securing the bottom with two (2)
screws (size# 10-24 x 5/8") and nuts.

The alarm output is fused for a maximum

drain of 10 amps. The remote alarm

connection may also be used for motor

control purposes when used with a relay.

Power Connection:

Warning!
Always disconnect the indicator power cord
before "jump starting" or fast charging a
battery. Disconnect all indicator leads
before welding on equipment. Failure to do
so can cause surges which will damage the
scale.

The power cable should be connected directly
to a vehicle battery or regulated power supply.
The scale end of the power cable is attached to
the J901 connector located on the bottom
panel of the scale.

Connect the RED wire from the power cable
to +12 VDC and the BLACK wire to
GROUND. The indicator is fused internally at
4 amps.

POWER CABLE CONNECTIONS

WIRE COLOR WIRE FUNCTION

RED BATTERY (+12 VDC)

BLACK GROUND

ORANGE REMOTE ALARM OUT +

BLUE REMOTE INPUT

Remote Alarm Connection:

If a remote 12 VDC alarm is to be used,
connect the +12 VDC side of the alarm
to the power cable ORANGE wire and the
GROUND side of the alarm to the frame.

INDICATOR BOTTOM PANEL

CABLE CONNECTIONS:

Remote Input Connection:

If the remote input is to be used, connect one
side of the normally open momentary switch
or relay contact to the power cable BLUE
wire, and the other side to the frame or other
GROUND connection. If your power cable
does not contain a blue wire and you desire to
use this feature, contact your dealer for a
special cable. A process control box is
available for motor control and remote enter
preset capability.

Load Cell Connection:

The indicator operates with strain gage load
cells. The system is normally supplied with a
"J-BOX" cable going between the scale and
the load cell junction box. Extension Kits are
available from your dealer in various lengths.

To connect the load cells, attach the junction
box cable to the J902 connector on the
bottom panel of the scale. Connect the load
cell cables to the junction box as shown
below.

Lightning Protection:

Additional protection is achieved with the
proper installation of grounding rods. Please
call [phone] request Digi-Star Form
F3050.

JUNCTION BOX LOAD CELL

CABLE CONNECTIONS:

19

MODEL 320 - Optional Features:

Options are installed in the indicator if the corresponding keys are on the front panel or if additional
connectors are on the bottom panel.

Remote Display:

Sample output format shown below:

A Remote Display is available for viewing
weights at convenient locations. The Remote
Display includes a visual alarm light which can
be used with the TR4 option listed below.

10JA92 12:01P
123456 ID 123456LB GR

TR-TR4: Radio Control Operation
The TR and TR4 options allow the operator to

remotely control the scale from a distance up
to 100 feet away.

The TR option allows the operator to perform
"TARE and GROSS" or "Ingredient Advance"
functions.

The TR4 option allows remote operation of
the RM (recall memory), M+ (memory plus),
TARE, and either NET/GROSS or CM (clear
memory).

To Print Weight Data:
Weight data can be sent to a printer by press-

ing the [PRINT] key.

"Clock" & "ID #" options also shown.

To Print the Recipe Memory:
Step 1) Enter the program mode.

Step 2) Press [PRINT].

All recipes currently residing in recipe
memory will be printed.

To Print a Single Recipe:

Step 1) Press [RECIPE#]

An auto-print feature is implemented on the
TR and TR4 options.

The scale will display the first recipe in
memory.

Step 2) Press [PRINT].

This prints the ingredients of this recipe. Press
[RECIPE#] to advance onto the next recipe.

Step 3) Press [CLEAR] to exit, or continue to
press [RECIPE] until all recipes have been
displayed.

20

MODEL 320 - Optional Features:

To Enter ID Numbers-I.D.#: The identification number is also printed on

every weight printout. Printing automatically
Step 1) Use the numeric keypad to select the clears the identification number so that a new
identification number. value can be entered.

Step 2) Press the [ID #] key to enter the identi- The identification number can also be cleared
fication number. by pressing the [CLEAR] key followed by

pressing the [ID #] key.

Black Out:

The Black Out option is a preset enhancement

that maintains the "Preset amount left to go"

in non-volatile, permanent memory. This

insures that the correct weight can be

delivered even after a power outage.

For example, a system loaded with 2000 Lbs

was unloading a preset of 1000 Lbs. After

unloading the first 500 Lbs, a power outage

occurred. When the power returned and the

scale was turned ON, the message "POWER

OUTAGE - PRESS START ON CONTROL

BOX TO FINISH PRESET - CLEAR TO

CANCEL MO/DA/YR 12:00A" appeared.

Pressing START on the Control Box (or the

[NET/GROSS] key on the scale) loads the

preset amount remaining before the black out

(500 Lbs in this case).
To Display ID Numbers-I.D.#:

Pressing the [CLEAR] key cancels the preset
Step 1) Press the [ID #] key. and the scale displays the GROSS weight.

The Clock option is required as part of the

Black Out option. The Clock records the time,

date, and preset remaining before the power

outage (blackout).

21

MODEL 320 - Optional Features:

Pulsed Output: The Clock option is required as part of the

Pulsed Output option. The Clock records the

The Pulsed Output option provides one (1) time, date, and "GROSS weight reference
output line to indicate decreasing weight. point" before the power outage (blackout).

Pulsed Output pulls the connected signal line When the scale power is returned and the
to ground through a 330 Ohm resistor for 150 scale is turned back ON after a power loss, the
milli-seconds every time the scale decreases scale will display the message - "POWER
one (1) display count. OUTAGE - PRESS NET/GROSS TO

CONTINUE PULSED OUTPUT - ZERO TO

1 Display Count = 1 Output Pulse RESET MO/DA/YR 12:00A". This provides

the opportunity to start other equipment in the

The scale will not pull the line to ground more proper sequence.
than twice (2 times) a second - 2 Hz.
For example, if the weight decreased from
8000 Lbs. to 7500 Lbs. using a display count Animal Weighing:
of 10 Lb counts.

The Lock On weigh method #4 has the ability

8000 - 7500 = 500 (Lbs weight change) to determine the actual weight of items while
500 / 10 (Display Count) = 50 (Pulses) in motion, such as animals. Once the actual

weight is displayed, the scale "Locks On" to
There would be 50 output pulses taking the displayed weight and does not change,
about 25 seconds to output all 50 pulses. even if the motion never stops. A small 'L'

appears on the left side of the display

indicating the weight is "Locked On". The

animal’s weight must be greater than 2.5% of

the scales "capacity" weight before the system

can "Lock On."

In this example, 7500 Lbs represents the

"GROSS weight reference point". The scale
resets the "GROSS weight reference point" if

the weight increases 100 or more pounds for
at least one (1) minute. The scale starts
pulsing outputs as weight decreases from the
new "GROSS weight reference point".

There are two (2) ways to "reset" or "abort"
the internal pulse counter of the scale;

1 - ZERO/BALANCE the scale,

or 2 - Turn the scale "OFF" and then

"ON" again and press "ZERO" when
the scale shows the power outage
message.

In order to break the lock, 50% of the

displayed weight must be either added or

removed from the scale. The "Locked On"

weight can be "rechecked" by pressing the

[ZERO] key on the front panel. This breaks

the "lock" and the scale recalculates the

weight.

For more information on selecting weigh

method #4, please contact Digi-Star Technical

Service at [phone] and/or request Digi-

Star Technical Manual F3251.

22