Coffee Laboratory Coffee Pro Moisture-Mac Operator's Manual

Operators Manua

l

O

p

FFEE PR

670MAC

y

A

f

2

W

arrant

y

T

(1)

y

y

a

y.

T

y

any

.

his product is guaranteed to be free from defects in materials and workmanship for two (2) years
from date of retail purchase in USA or Canada and one
cover the batter
maintenance. This warrant

n authorized factory repair facilit

he foregoing warranty is exclusive and in lieu of all other warranties of merchantability, fitness for
purpose and an

one to assume for it any other obligation or liability in connection with its product and will not be

liable for consequential damages

or damage resulting from misuse, neglect, accident or improper installation or

does not apply to any product which has been repaired or altered outside

other type, whether express or implied. AgraTronix neither assumes nor authorizes

year overseas. This warranty does not

ll information, illustrations and specifications in this manual are based

on the latest in

ormation available at the time of publication. The right is

eserved to make changes at any time without notice.

roduct Warranty and Repair Progra

m

Preh

g

n

.

s

n

.

1

r

3

T

g

3

f

.

Operation

perating Conditions

Contents

age

perational Messages
perating Procedure

Normal Operatio
To Display Temperature in the Cell
To Average Test Result
To Adjust Calibratio
Moisture Limit Guidelines

alibration Consideration / Limits
To Clear Calibration
To Select a Different Language
To Select a New Grain Scale or Function
To Turn on Backlight and Turn Off Tester

eatin

.........................................................................................

........................................................................... 4

.......................................................

..............................................................................

.......................................................................

............................................................................. 1

ervice

To Replace Batteries
To Clean the Teste

..........................................................................

.............................................................................. 1

.............................................

roubleshootin

ecord the Serial Number

arrying Case

otes

...................................................................................................

All information, illustrations and specifications in this manual are based
on the latest in
reserved to make changes at any time without notice

.....................................................................................

ormation available at the time of publication. The right is

.........................................................................14

...................................................................

5

Operation

S

p

g

˚F (16˚C)

a

t

.

g

y

z

.

S

g

below limi

above limi

)

e

4

PERATING CONDITION

Test cell and grain MUST be free of any conden

ation or surface moisture. Moisture on grain or

n test cell will cause high readings. Very hot or

ool grain will pick up moisture when it warms

or cools. The

queeze moisture from high moisture grains,
uch as corn, into the bottom of the test cell.

ecause grains are irregularly shaped and may

ot always pack the same way in the test cell,

minor variations in readings may occur. To

nhance accuracy, always take three (3) succes
ive readings of the total sample being tested
nd average the results. Empty and refill the

tester with new

ach test.

ressure cap of the tester can

rain from the sample between

The tester is most accurate when grain and tester are between 60

and 90˚F

(32˚C). The unit will, however, operate at temperatures between 33˚F (1˚C) and 120˚F

49˚C). For best results, grain temperature should not be below 40˚F (4˚C) or above

10˚F (43˚C). If the grain temperature is 20˚F (11˚C) more or less than the temper
ture of the unit, preheat the tester per instructions on page 5. Condensation on the
grain or test cell is best avoided by having the tester and grain at about the sample

emperature

The environment to which a grain sample is exposed can appreciably change its
moisture content. Exposed to the open air,
moisture in onl

a few minutes. If a sample is to be held for even a short time before

rain can gain or lose 1% to 2% indicated

being tested, it should be placed into a tightly closed, air-tight container, such as a

iplock bag or jar

PERATIONAL MESSAGE

Symbol Definition

YSTEM BATTERY LOW

ystem battery needs replacin
ISTURE BELOW LIMIT
ISTURE ABOVE LIMIT

ERROR (---

----------------------------------

ture is
ture is

Electronic Failur

t
t

Operation

G

f

:

(A)

(B)

A

f

W

f

.

4

fl

(A). (

)

.

n

PERATING PROCEDURE – PREHEATIN

IMPORTANT: If the temperature of the grain sample is 20˚F (11˚C) more or less than

the temperature o

PREHEATING PROCEDURE

.

emove cap

Press ON-OFF button (C) to turn on tester. The display (D) will show ALWAYS

VERAGE 3 TESTS for approximately 7 seconds, then will show ALFALFA (initial

operation) or the name o

.

hen the grain to be tested has been selected using the SELECT arrows (E), fill

the test cell (B) even to the top o

.

eplace cap loosely DO NOT TIGHTEN.

the unit, preheat the tester and test as follows

and inspect test cell

to be sure that it is clean and empty

the last grain tested.

the cell with sample to be tested

.After 30 seconds, empty test cell and immediately refill with fresh grain.

6. Replace cap (A) and tighten until pressure-indicator screw (F) is
top of cap

Use finger-flush test as illustrated in Figure 1.

ush with the

Immediately press TEST button (G). The words TESTING will be displayed for

bout 10 seconds, while the tester compensates for temperature. The moisture

and temperature will then be displayed for about 10 seconds

- Test Butto

Operation

–

(A)

(B)

y.

(C)

The displ

(D)

w

y

w

d.

W

ll (B)

f

ested.

4

.

(A)

fl

S

(G)

.

y

.

:

A

p

y

PERATING PROCEDURE

NORMAL OPERATION

.

emove cap

test cell

s clean and empt

and inspect

to be sure that it

Press ON-OFF button
turn on tester.

to

ay

ill show ALWAYS AVERAGE

TESTS for approximatel

7 seconds, then will sho

REEN COFFEE (initial opera

tion) or the name of the last

rain teste

3.

hen the grain to be tested

as been selected using the

ELECT arrows (E), fill the

test ce

the cell with sample to be

o

even to the top

t

.

tightening pressure cap, turn on
tester and allow to warm up for 30

econds before
ttempting first test

.

eplace cap

and tighten until
ressure-indicator screw (F) is
ush with the top of cap (A). (Use

Finger-Flush test as illustrated.)

- Ca

- Test Cell

- ON-OFF Button

- Displa

- Select Arrows

- Pressure-Indicator Screw

- Test Button

6. Immediately press TE
bout 10 seconds, while the tester compensates for temperature. The moisture

and temperature will then be displayed for about 10 seconds

7. The tester will then return to displaying the name of the last grain tested. Empt

the test cell and refill with a fresh sample and test again

NOTE

ample collected and average the results.

T button

. The words TESTING will be displayed for

TO

DISPLAY TEMPERATURE IN THE CEL

L

To display th

S

W

(B). Th

ill b

˚

y

.

t

t

TO

S

W

g

g

g

grain’

.

A

VG button (B) to display the average of all

.

%

.

e temperature in the cell, press either the up or

down arrow on the

ELECT button (A) to index forward or
backward through the grain (function) menu until the word
TEMPERATURE is displayed.

hen TEMPERATURE is displayed, press TEST

utton
displayed in both F
displa

ed for a few seconds then will return to the

e current temperature in cell w

and C˚. Temperature will be

e

ain grain menu

Operation

OTE:

f the tester and grain are differen
emperatures, the mass of the metal
ester will quickly warm or cool the grain.

herefore, the temperature reading is the cell temperature, no
ecessarily the temperature of the grain before being put in the cell.

AVERAGE TEST RESULT

hen testing grain, the test result is dis
layed for about ten seconds. During the
eriod that the test moisture % and tempera

ture is displayed, press the MEMORY button

A). The tester will acknowledge that it has

ntered the reading into memory, by display-

ng the current average and then the number

of stored readin

s. Up to 20 readings can be

tored into memory. If the maximum number

of readin

s has been reached, the tester will

ot allow any more readings to be stored.

OTE: Averaging is stored for one grain only. When

test for a new grain is performed, existing avera

ng data for the previous grain is erased when the

new

s averaging data is taken. Averaging data is

retained even if batteries are removed

Press the
results entered for the grain being tested

3.
played. Then press the CLEAR button (C) and the tester will then display 0.0

0 ). This indicates that the averaging has been cleared

Operation

ON

s

t

t

.

t

.

.

T

s

t

O

.

.

(C)

.

O

Adjustment can NOT be made to factor

n

s

O

lid

ill

TO ADJUST CALIBRATI

MPORTANT: Always obtain three (3) test
esults from the grain elevator for the

ample being compared. Average these
hree (3) results. Compare this average with
he average of three (3) tests by the

oisture tester

ach grain scale can be individually ad

justed up to 5.0% by increments of 0.1%

o more closely match the results of an

vator tester

irst select the grain to be adjusted

you wish to adjust to. Once valid moi

ure appears, press the CAL button (A).

N

TE:

alibration of given grain cannot be perormed

nless a valid moisture test has been perormed

nce CAL button (A) is pressed, tester will now display the obtained moisture

eading and the current offset applied to that moisture range

ress the UP arrow (B) to raise the adjustment amount or press the DOWN

rrow

to lower. The tester will add or subtract up to 5.0% by increments of

.1% to the current moisture range

After the adjustment amount has been selected, press the CAL button (A) to

eturn to grain tester mode.

N

TE:

calibratio

o produce moisture readings in a tester that show

BELOW LIMIT” or “ABOVE LIMIT” readings.

RTANT:

IMP
This tester incorporates Multi-Point Calibration for each grain. Therefore, once a
va

test is taken and an adjustment is made, the adjustment w

oisture range of the sample tested.

only affect the

DISPLAY READIN

G

S

e

w

)

%

%

E

0%

40.0%

ISTURE LIMIT GUIDELINE

Specifications and design subject to chang

ithout notice

Operation

REEN COFFEE

PARCHMENT COFFE

OTE:

ear either the high or the low limit of the unit (listed above), the tester is programmed to close
own its range of operating limits.

Moisture Range

w Limit

9.0
.

oisture Range

igh Limit

5.0

Operation

0

T

w

id

:

flect

Teste

ces

,

y

pp

g

f

(

f

y

g

a

-

y

g

g

y

g

s

y

y

(High Moi

y

y

f

ALIBRATION CONSIDERATION / LIMITS

ypically the moisture tester will be consistent

ith most elevator testers over a broad range of
moisture levels. However, there are some things
to cons
tester calibration.

er when thinking about your moisture

OTE

may not match a given elevator tester. None of
the testers exactly match the actual weighted
moisture of an
difference between moisture testers and various U.S.D.A. a

s not a constant value. A correction at one moisture level may not be valid for a
different moisture level. Graph 1 shows how the moisture tester mi
an elevator tester over a broad range of moisture levels. The moisture tester, and
most elevator testers (shown in graph by solid line) will closely match those o
moisture tester
get away
elevator tester and moisture tester not onl
moisture tester readin
tor tester. For example, in Graph 1, the area between B and C represents the mid
range moisture. Moisture tester readings match elevator tester readings in this area
with an accurac
the low moisture ran
readings, and are LOWER than elevator tester readings. The area beween C and D
represents the hi
elevator tester readings than the
are HIGHER than elevator tester readin

raph provided is for illustration

purposes only and does not re

ctual test data.

r Differen

rom mid-range into the high and low moisture levels, differences between

: Your moisture tester unit

given grain. There is no national standard for elevator testers. The

shown by dashed line) for that range, as illustrated. However, as we

higher than elevator tester to a reading lower than the elev

of plus or minus 0.5 percent. The area between A and B represents

e. Moisture tester readings differ more from elevator tester

h moisture range. Moisture tester readings again differ more from

did at mid-range moistures, but now the readings

roved elevator testers

ht compare to

become greater, but may switch from a

s.

the

alibration Requirements: Graph 1 illustrates that moisture tester readings closely

match elevator tester readings for mid-range moisture levels.

ration purposes only and does not reflect actual test data.)Calibration changes

required for grain in this moisture range will be small, if an

ry (Low Moisture Range) or very wet

to calibrate

our grain in both testers. Record the calibration correction required. It will be valid

or all testing in that moisture range for that grain.

our moisture tester unit against the elevator tester using a sample of

1

Graph is for illu

. However, if grain is ver

sture Range), it may be necessary