COFFEE PRO MOISTURE-MAC User manual

Operators Manua
l
CO
FFEE PR
O
p
670MAC

y
A
ll information, illustrations and s
p
ecifications in this manual are based
on the latest in
f
ormation available at the time o
f
publication. The right is
r
eserve
d
to ma
k
e c
h
anges at any t
i
me w
i
t
h
out not
i
ce.
2
W
arrant
y
T
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
(
1
)
year overseas. This warranty does not
cover the batter
y
or damage resulting from misuse, neglect, accident or improper installation or
maintenance. This warrant
y
does not appl
y
to an
y
product which has been repaired or altered outside
a
n authorized factor
y
repair facilit
y.
T
he foregoing warrant
y
is exclusive and in lieu of all other warranties of merchantabilit
y
, fitness for
purpose and an
y
other t
y
pe, whether express or implied. AgraTronix neither assumes nor authorizes
a
n
y
one to assume for it an
y
other obligation or liabilit
y
in connection with its product and will not be
liable for consequential damages
.

Contents
P
age
P
roduct Warranty and Repair Progra
m
...................................................
2
O
p
eration
O
perating Conditions
..............................................................................
4
O
perational Messages
.
........................................................................... 4
O
peratin
g
Procedure
P
re
h
eat
i
n
g
.........................................................................................
5
Normal
O
peratio
n
..............................................................................
6
To Display Temperature in the Cell
.
.......................................................
.
7
To Average Test Result
s
.........................................................................
7
To Adjust
C
alibratio
n
..............................................................................
.
8
Moisture Limit
G
uidelines .......................................................................
9
C
alibration
C
onsideration
/
Limits
.........................................................
10
To
C
lear
C
alibration
.
............................................................................. 1
1
To
S
elect a Different Lan
g
ua
g
e
............................................................
11
To
S
elect a New
G
rain
S
cale or Function.............................................
12
To Turn on Backli
g
ht and Turn
O
ff Tester
..............................................
12
S
ervice
To Replace Batteries
.
..........................................................................
.
13
To
C
lean the Teste
r
.
.............................................................................. 1
3
T
roubleshoot
i
n
g
.
........................................................................
.
14
R
ecord the
S
erial Number
.
...................................................................
1
5
C
arryin
g
C
ase
.
.....................................................................................
15
N
otes ...................................................................................................
.
16
3
All information, illustrations and specifications in this manual are based
on the latest in
f
ormation available at the time o
f
publication. The ri
g
ht is
reserved to make changes at any time without notice
.

Operation
O
PERATIN
G
CO
NDITI
O
N
S
Test cell and grain MUST be free of any conden
-
s
ation or surface moisture. Moisture on
g
rain or
i
n test cell will cause high readings. Very hot or
c
ool grain will pick up moisture when it warms
or cools. The
p
ressure ca
p
o
f
the tester can
s
queeze moisture from high moisture grains,
s
uch as corn
,
into the bottom o
f
the test cell.
B
ecause gra
i
ns are
i
rregu
l
ar
l
y s
h
ape
d
an
d
may
n
ot always pack the same way in the test cell,
minor variations in readings may occur. To
e
nhance accuracy, always take three
(
3
)
succes
-
s
ive readin
g
s o
f
the total sample bein
g
tested
a
nd average the results. Empt
y
and refill the
tester with new
g
rain
f
rom the sample between
e
ach test.
The tester is most accurate when grain and tester are between 60
˚
F
(
16
˚
C
)
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
1
10˚F (43˚C). If the grain temperature is 20˚F (11˚C) more or less than the temper
a
-
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
t
empera
t
ure
.
The environment to which a grain sample is exposed can appreciabl
y
change its
moisture content. Exposed to the open air,
g
rain can
g
ain or lose 1% to 2% indicated
moisture in onl
y
a few minutes. If a sample is to be held for even a short time before
being tested, it should be placed into a tightly closed, air-tight container, such as a
z
iplock bag or
j
ar
.
O
PERATI
O
NAL ME
SS
A
G
E
S
Sy
mbol Definition
S
Y
S
TEM BATTERY L
O
W
--------------------------
S
ystem battery needs replacin
g
MO
I
S
T
U
RE BEL
O
W LIMIT
-
----------------------------------
Mois
t
u
r
e
is
belo
w
li
m
i
t
MO
I
S
TURE AB
O
VE LIMIT
-----------------------------------
M
o
is
ture
is
a
b
ove
li
m
i
t
ERROR (---
)
----------------------------------------------------------
Electronic Failur
e
4

Operation
O
PERATIN
G
PR
OC
EDURE – PREHEATIN
G
IMP
O
RTANT
:
If the temperature of the grain sample is 20˚F (11˚C) more or less than
the temperature o
f
the unit, preheat the tester and test as
f
ollows
:
PREHEATIN
G
PR
OC
ED
U
RE
1
.
R
emove cap
(A)
an
d
i
nspect test ce
ll
(B)
to
b
e sure t
h
at
i
t
i
s c
l
ean an
d
empty
.
2.
Press ON-OFF button
(
C
)
to turn on tester. The display
(
D
)
will show ALWAYS
A
VERAGE 3 TESTS for approximately 7 seconds, then will show ALFALFA (initial
operation) or the name o
f
the last grain tested.
3
.
W
hen the grain to be tested has been selected using the SELECT arrows (E), fill
the test cell (B) even to the top o
f
the cell with sample to be tested
.
4
.
R
ep
l
ace cap
l
oose
ly
.
DO NOT TIGHTEN.
5
.
A
fter 30 seconds, empt
y
test cell and immediatel
y
refill with fresh grain.
6. Replace cap (A) and tighten until pressure-indicator screw (F) is
fl
ush with the
top of cap
(
A
)
.
(
Use finger-flush test as illustrated in Figure 1.
)
7.
Immediately press TE
S
T button (
G
). The words TE
S
TIN
G
will be displayed for
a
bout 10 seconds, while the tester compensates for temperature. The moisture
%
and temperature will then be displayed for about 10 seconds
.
5
G
- Test Butto
n

Operation
O
PERATIN
G
PR
OC
ED
U
RE
–
N
O
RMAL
O
PERATI
O
N
1
.
R
emove cap
(A)
an
d
i
nspect
test cell
(
B
)
to be sure that it
i
s c
l
ean an
d
empt
y.
2.
Press
O
N-
O
FF button
(C)
to
turn on tester.
Th
e
di
sp
l
ay
(D)
w
ill show ALWAY
S
AVERA
G
E
3
TESTS for approximatel
y
7 seconds
,
then will sho
w
G
REEN COFFEE
(
initial opera
-
tion) or the name o
f
the last
g
ra
i
n teste
d.
3.
W
hen the grain to be tested
h
as
b
een se
l
ecte
d
us
i
n
g
t
h
e
S
ELE
C
T arrows (E), fill the
test ce
ll
(B)
even to t
h
e top
o
f
the cell with sam
p
le to be
t
es
t
ed.
4
.
(For Initial T
est Only) Before
T
T
ti
g
htenin
g
pressure cap, turn on
tester and allow to warm up for 30
s
econds be
f
ore
a
ttempting first test
.
5
.
R
ep
l
ace cap
(A)
an
d
t
i
g
h
ten unt
il
p
ressure-indicator screw (F) is
fl
ush with the top of cap
(
A
)
.
(
Use
Finger-Flush test as illustrated.)
6. Immediately press TE
S
T button
(G)
. The words TE
S
TIN
G
will be displayed for
a
bout 10 seconds, while the tester compensates for temperature. The moisture
%
and temperature will then be displayed
f
or about 10 seconds
.
7. The tester will then return to displa
y
ing the name of the last grain tested. Empt
y
the test cell and re
fi
ll with a
f
resh sample and test a
g
ain
.
N
O
TE
:
T
ake at least three readings of new grain from the
TT
s
ample collected and avera
g
e the results.
6
A
- Ca
p
B
- Test
C
ell
C
-
O
N-
O
FF Button
D
- Displa
y
E
-
S
elect Arrows
F
- Pressure-Indicator
S
crew
G
- Test Button

Operation
TO
DI
S
PLAY TEMPERATURE IN THE
C
EL
L
T
o
di
sp
l
a
y
t
h
e temperature
i
n t
h
e ce
ll
, press e
i
t
h
er t
h
e up or
down arrow on the
S
ELE
C
T button (A) to index forward or
backward through the grain (function) menu until the word
TEMPERATURE is displayed.
W
hen TEMPERATURE is displayed, press TE
S
T
b
utton
(B)
.
Th
e current temperature
i
n ce
ll
w
ill
b
e
displayed in both F
˚
and C
˚
. Temperature will be
displa
y
ed for a few seconds then will return to the
m
ain grain menu
.
N
OTE:
I
f the tester and
g
rain are differen
t
t
em
p
eratures, the mass o
f
the meta
l
t
ester will quickl
y
warm or cool the grain.
T
herefore, the temperature readin
g
is the cell temperature, no
t
n
ecessarily the temperature o
f
the grain be
f
ore being put in the cell.
TO
AVERA
G
E TE
S
T RE
S
ULT
S
1.
W
hen testing grain, the test result is dis
-
p
layed for about ten seconds. During the
p
eriod that the test moisture % and tempera
-
ture is displayed, press the MEMORY button
(
A
)
. The tester will acknowledge that it has
e
ntere
d
t
h
e rea
di
ng
i
nto memory,
b
y
di
sp
l
ay-
i
ng the current average and then the number
of stored readin
g
s. Up to 20 readin
g
s can be
s
tored into memory. I
f
the maximum number
of readin
g
s has been reached, the tester will
n
ot allow any more readings to be stored.
N
OTE: Averaging is stored for one grain onl
y
. Whe
n
a
test for a new
g
rain is performed, existin
g
avera
g
-
i
ng data
f
or the previous grain is erased when th
e
new
g
ra
i
n
’
s avera
gi
n
g
d
ata
i
s ta
k
en.
A
vera
gi
n
g
d
ata
is
retained even if batteries are removed
.
2.
Press the
A
VG button (B) to display the average of all
AA
results entered for the
g
rain bein
g
tested
.
3.
T
o clear the averaging, press the AVG button. The current average will be dis
T
T
-
played. Then press the CLEAR button (C) and the tester will then display 0.0
%
(
0
)
. This indicates that the averaging has been cleared
.
7

Operation
T
O
ADJU
S
T
C
ALIBRATI
ON
I
MP
O
RTANT: Always obtain three
(
3
)
test
r
esults from the grain elevator for the
s
amp
l
e
b
e
i
n
g
compare
d
.
A
vera
g
e t
h
ese
t
hree
(
3
)
results. Compare this average with
t
he average of three
(
3
)
tests by the
m
oisture tester
.
1.
E
ach grain scale can be individuall
y
ad
-
justed up to 5.0% by increments of 0.1%
t
o more closely match the results of an
ele
v
a
t
o
r t
es
t
e
r
.
2.
F
irst select the grain to be adjusted
.
3.
T
est the grain selected, using the sample
TT
you wish to adjust to.
O
nce valid moi
s
-
t
ure appears, press the CAL button
(
A
)
.
N
O
TE:
C
alibration of given grain cannot be pe
r
f
ormed
u
nless a valid moisture test has been pe
r
f
ormed
.
4.
O
nce
C
AL button (A) is pressed, tester will now display the obtained moisture
r
eading and the current offset applied to that moisture range
.
5.
P
ress the UP arrow (B) to raise the adjustment amount or press the D
O
WN
a
rrow
(C)
to lower. The tester will add or subtract up to 5.0% by increments of
0
.
1%
to t
h
e current mo
i
sture ran
g
e
.
6.
After the adjustment amount has been selected, press the
C
AL button
(
A
)
to
r
eturn to
g
ra
i
n tester mo
d
e.
N
O
TE:
Adjustment can NOT be made to factor
y
calibratio
n
r
t
o pro
d
uce mo
i
sture rea
di
n
g
s
i
n a tester t
h
at s
h
ow
s
“
BELOW LIMIT” or “ABOVE LIMIT” readings.
IMP
O
RTANT:
This tester incorporates Multi-Point Calibration for each grain. Therefore, once a
va
lid
test
i
s ta
k
en an
d
an a
dj
ustment
i
s ma
d
e, t
h
e a
dj
ustment w
ill
on
ly
a
ff
ect t
h
e
m
oisture range of the sample tested.
8

Operation
9
DI
S
PLAY READIN
G
MO
I
S
T
U
RE LIMIT
GU
IDELINE
S
(
Specifications and design subject to chang
e
w
ithout notice
)
N
OTE:
If grain temperature is 40˚F (4˚C) or below
, or 110˚F (43˚C) or above, and the grain moisture is
w
w
n
ear either the high or the low limit of the unit (listed above), the tester is programmed to clos
e
d
own its range of operating limits.
Moisture Range
Lo
w
Li
m
i
t
M
oisture Ran
g
e
H
igh Limit
G
REEN
CO
FFEE
......................
9.0
%
....................
3
5.0
%
PARCHMENT COFFE
E
....................
10
.
0%
....................
40
.
0%

Operation
1
0
C
ALIBRATION CONSIDERATION / LIMITS
T
ypically the moisture tester will be consistent
w
ith most elevator testers over a broad ran
g
e of
moisture levels. However, there are some things
to cons
id
er w
h
en t
hi
n
ki
ng a
b
out
y
our mo
i
sture
tester calibration.
N
OTE
:
G
raph provided is for illustratio
n
purposes only and does not re
fl
ec
t
a
ctual test data.
Tes
t
e
r Diff
e
r
e
n
ces
:Your moisture tester unit
,
ma
y
not match a given elevator tester. None of
the testers exactly match the actual weighted
moisture of an
y
given grain. There is no national standard for elevator testers. The
difference between moisture testers and various U.S.D.A. a
pp
roved elevator testers
i
s not a constant value. A correction at one moisture level ma
y
not be valid for a
different moisture level. Graph 1 shows how the moisture tester mi
g
ht compare to
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
f
the
moisture tester
(
shown by dashed line
)
for that range, as illustrated. However, as we
get away
f
rom mid-range into the high and low moisture levels, di
ff
erences between
elevator tester and moisture tester not onl
y
become greater, but ma
y
switch from a
moisture tester readin
g
hi
g
her than elevator tester to a readin
g
lower than the elev
a
-
tor tester. For example, in
G
raph 1, the area between B and
C
represents the mid
-
ran
g
e moisture. Moisture tester readin
g
s match elevator tester readin
g
s in this area
with an accurac
y
of plus or minus 0.5 percent. The area between A and B represents
the low moisture ran
g
e. Moisture tester readin
g
s di
ff
er more
f
rom elevator tester
readings, and are LOWER than elevator tester readings. The area beween C and D
represents the hi
g
h moisture ran
g
e. Moisture tester readin
g
s a
g
ain di
ff
er more
f
rom
elevator tester readings than the
y
did at mid-range moistures, but now the readings
are HIGHER than elevator tester readin
g
s.
C
alibration Re
q
uirements
:
Graph 1 illustrates that moisture tester readings closely
match elevator tester readings for mid-range moisture levels.
(
Graph is for illu
s
-
t
ration purposes only and does not re
fl
ect actual test data.
)
Calibration chan
g
es
required for grain in this moisture range will be small, if an
y
. However, if grain is ver
y
d
ry
(L
ow
M
o
i
sture
R
ange
)
or very wet
(Hi
g
h
M
o
i
sture
R
ange
)
,
i
t may
b
e necessary
to calibrate
y
our moisture tester unit against the elevator tester using a sample of
y
our grain in both testers. Record the calibration correction required. It will be valid
f
or all testing in that moisture range for that grain.