Adam Equipment CQT1751GR User manual

© Adam Equipment Company 2009
Adam Equipment
Grain Scale
Model: CQT1751GR
.
pn. 9757 rev B

© Adam Equipment Company 2009

©Adam Equipment Company 2009 3
1.0 CONTENTS
1.0 CONTENTS 3
2.0 INTRODUCTION 5
3.0 SET UP 5
3.1 UNPACKING AND SETTING UP YOUR SCALE 5
3.2 INSTALLING BATTERIES 6
3.3 OVERVIEW - DISPLAY / KEY BOARD 6
3.4 LOCATING AND PROTECTING YOUR SCALE 8
3.5 STORING WHEN NOT IN USE 9
4.0 BASIC OPERATION 10
4.1 TURNING ON THE SCALE 10
4.2 ZEROING / TARE 10
4.3 WEIGHING 10
4.4 WEIGHING UNITS 10
4.5 GRAIN DETERMINING 11
5.0 PARAMETERS 14
5.1 PARAMETER SETTING 14
5.2 AUTO POWER OFF 14
5.3 SETTING THE BACKLIGHT 15
6.0 CALIBRATION 16
7.0 TROUBLE SHOOTING 17
7.1 ERROR MESSAGES 17
7.2 REPLACEMENT PARTS AND ACCESSORIES 18
8.0 SPECIFICATIONS 20
9.0 WARRANTY STATEMENT 21

©Adam Equipment Company 2009 4

©Adam Equipment Company 2009 5
2.0 INTRODUCTION
Thank you for purchasing your new grain scale which is based upon the Core series of
Balances. The CQT1751GR model has been specifically developed and designed to be
used to assist in the grading of grain to asses the quality of the grain as well as to give an
indication of the Kilograms per hectolitre (kg/Hl).
3.0 SET UP
3.1 UNPACKING AND SETTING UP YOUR SCALE
1) Remove the shipping protection screw and round cover as shown below using the
Allen key supplied in the box. (It is advisable to keep the shipping protection screw
and the round cover along with the packing box for using during shipping to another
location in future).
Shipping protection screw
Round cover around the screw
2) Place the pan (which comes separately packed) in the receptacles on the top cover.
Use the screw that you
removed to screw the plastic
pan into place. Be careful
when putting the screw in that
you do not use to much force
as it can damaged the
loadcell. You should just be
able to use light force to
secure the screw.
3) Place the stainless steel pan on top of the plastic pan.
4) Place the balance on a firm and flat surface for accurate weighing.

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3.2 INSTALLING BATTERIES
Remove the battery compartment cover and insert six batteries (R6P/LR6 /AA size) into
the battery compartment.
3.3 OVERVIEW - DISPLAY / KEY BOARD
BEHIND
AC adapter socket
Lock down slot
TOP
Stainless Steel pan
Plastic Pan
LCD display
[On/Off] key
Turns the balance power
on/off
[S/P CE] key
Stores weight readings
and does percentage
calculation as well as
clearing stored values.
[Recall / Tare] key
Recalls stored weighings
/ results and also to
zeros and tares the
balance

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BOTTOM
Battery compartment
screws
Battery compartment
cover
Batteries are not
included
DISPLAY
ZERO indicator
Indicates when the scale
is at zero.
STABLE indicator
Indicates when the
reading is stable.

©Adam Equipment Company 2009 8
3.4 LOCATING AND PROTECTING YOUR SCALE
In order to keep your scale functioning at its best we suggest that you do the following:
Avoid extremes of temperature. Do not place in direct sunlight or
near air conditioning vents.
Make sure the scale is located on a strong table and free from
vibration.
Avoid unstable power sources. Do not operate near large users of
electricity such as welding equipment or large motors. Do not leave
the batteries inside the scale – if you are using the scale with the
AA batteries and are not using it on not using it for a long time.
Keep free from vibration. Do not place near heavy or vibrating
machinery.
Avoid high humidity that might cause condensation, and keep away
from direct contact with water.
Do not place near open windows, air-conditioning vents or fans that
may cause a draught and unstable readings.
Keep the scale clean, and do not stack material on the scale when it
is not in use. The CQT1751GR has a stacking feature allowing more
than one unit to be stacked on top of each other. For more details on
this see the section on storing.

©Adam Equipment Company 2009 9
3.5 STORING WHEN NOT IN USE
If you have any of the Highland
TM
series or Core
TM
or Grain Scale product lines you can
store them easily on top of each other. To save space and protect them from damage.
Without Shield With Shield

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4.0 BASIC OPERATION
4.1 TURNING ON THE SCALE
Plug in the unit using the AC adapter or power from the batteries and press the [on/off]
key.
1) The scale will show automatically grn- X.X, “XX” meaning software revision
number “grn” meaning it has grain scale software and then show the voltage X.X
Vol where “X.X” is the voltage of the batteries if being used on battery power or the
AC adapter after that the scale will then count from 0 to 9 for a few seconds. Finally
it will display "0.0g" with the Stable symbol and Zero symbols being lit up.
2) The scale is now ready to be used.
3) To turn the scale off after use press the [on/off] key again. There is an auto power-
off function that will automatically turn the unit off, this can be set in the parameters
section.
4.2 ZEROING / TARE
You can press the [Recall / Tare] key to set a new zero point. Zero will be set if the
reading on the scale is less than 70g. This may be necessary if the weight is not reading
zero with no weight on the pan. The zero indicator will show in the top left corner of the
LCD.
If you are using a container to weigh then you can place this on the platform and press the
[Recall / Tare] key, the display will show zero and NET on the display.
You can then weigh any material added to the container. Taring weight subtracts from the
scale’s total capacity.
Note: When the container is removed a negative value will be shown. If the [Recall / Tare]
is pressed when the container has been removed it will again zero the scale.
4.3 WEIGHING
To determine the weight of a sample, first tare an empty container, then place the sample
in the container. The display will show the weight and the unit of weight currently in use.
The stable indicator will light up when the reading is stable.
4.4 WEIGHING UNITS
Two units are available: grams (g) and Kilograms per Hectolitre (Kg/Hl).

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4.5 GRAIN DETERMINING
1) Turn on the scale and wait for the scale to come to zero. Then put on an empty
500ml container and press the [Recall / Tare] key.
Store
Kg/Hl
2) Load the 500ml container with the grain. The screen shows the net weight (the first
net weight) of the grain (in this example lets say the total weight was 400g).
Store
Kg/Hl
3) Press the [S/P CE] key, it calculates the relation between g and Kg / Hl and saves
the value. The balance will show Store 1 for 2 seconds and then “xx.x Kg / Hl”. In
this example it will show 80.00 Kg / Hl.
Store
Kg/Hl
The Store symbol (►) lights up when the first net weight is stored and the Kg/Hl
symbol (►) also lights up.
>0<
Net
0.0 9
Net
400.0 9
g
►
Net
80.00 ►

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4) Now remove the container and perform the screening operation.
5) Then put the same 500ml container back on to the scale. The scale will show 0.0g
on the display.
6) Add the screenings to the container, the display shows the weight of the screenings.
For this example say 30.0g
Store
Kg/Hl
7) Once the stable light has shown on the display press the [S/P CE]. The balance
will show Store 2 for 2 seconds and then “xx.x Kg / Hl”. If the screenings were
30.0g then in this example it would show 6.00 Kg/Hl.
Store
Kg/Hl
The Store symbol (►) lights up when the second net weight is stored and the Kg/Hl
symbol (►) also lights up.
8) To determine the percentage of screenings to the initial grain press the [S/P CE]
key again. The balance will show “Per - - -” on the display for approximately 2
seconds and then “ XX.X PER”. In the example the 1
st
weight was 400g
( calculated as 80.00Kg/Hl), the 2
nd
weight was 30g (calculated as 6.00Kg/Hl).
Therefore the percentage value would be 7.50%.
Store
Kg/Hl
%►
7.50 PER
►
►
Net
30.0 9
g
►
Net
6.00 ►

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9) To review the 1
st
and 2
nd
stored weight and percentage values that have been
stored into the memory simply press the [Recall / Tare] key to scroll through the
various weights. These are stored in the memory even if the scale has been
switched off so you can tell if only one stored weight is in the memory that you
need to complete the weighing of the screened grain, if 2 stored weights are in the
memory but it does not show percentage if you press the [S/P CE] key it will
calculate the percentage.
10) After completing the test you must clear the memory. This is done by pressing and
holding down the [S/P CE] key for 2 seconds until “Clear” is displayed on the scale
and then release the [S/P CE] key.
11) If the balance is turned off during the weighing process when it is turned on again
it will have kept the stored information in the memory so that you could then
complete the tests without having to start again due to a loss of power.

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5.0 PARAMETERS
The scale has 2 parameters that can be set by the user.
FUNCTION SECTION DESCRIPTION
Auto Off See section 5.2 Sets the auto power off function
Backlight See section 5.3 Sets the backlight
OFF BL backlight is off
1 BL backlight is automatic
2 BL backlight is always on
5.1 PARAMETER SETTING
•Press [On/Off] to turn the balance off.
•Press and Hold the [Recall/Tare] key and press the [On/Off] key to switch
the scale on, the scale will show “grn-1.0 GRN” and then enter the
parameter setting. The display will show "OFF PWR".
5.2 AUTO POWER OFF
The auto power off function helps conserve power, when using the batteries or AC
adapter. The Auto switch-off time may be set up by the user and is the time after a period
of inactivity i.e. no weight movement or key presses.
1) To set this parameter turn the power off press and hold the [Recall/Tare] key then
press the [on/off] key once, then release the [Recall/Tare] key.
2) After a few seconds, the display will show the first function PWR
3) Press the [S/P/CE] key until you the display shows you XX PWR where XX is last
setting
4) Press [Recall/Tare]to select the settings as follows:
Off PWR Auto power off
10 PWR 10 seconds before the power will switch off
20 PWR 20 seconds before the power will switch off
30 PWR 30 seconds before the power will switch off
40 PWR 40 seconds before the power will switch off
50 PWR 50 seconds before the power will switch off
60 PWR 60 seconds before the power will switch off
70 PWR 70 seconds before the power will switch off
80 PWR 80 seconds before the power will switch off
90 PWR 90 seconds before the power will switch off
5) Press the [S/P/CE]key to confirm the setting
6) To exit turn the scale off and back on again

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5.3 SETTING THE BACKLIGHT
The backlight may be enabled or disabled by the user. If the backlight is disabled, the
battery life will be longer.
The following settings are available:
1 BL Sets the backlight to operate automatically when a weight is
placed on the scale or a key is pressed.
2 BL Sets the backlight to be on at all times.
OFF BL Sets the backlight to be off.
1) To set this parameter turn the power off press and hold the [Recall/Tare] key then
press the [On/Off] key once, then release the [Recall/Tare] key.
2) After a few seconds, the display will show the first function PWR
3) Press the [S/P/CE] key until you the display shows you XX BL where XX is last
setting
4) Press [Recall/Tare] to select the settings as follows 1 BL - 2 BL – OFF BL
5) Press the [S/P/CE]key to confirm the setting
6) To exit turn the balance off and back on again

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6.0 CALIBRATION
Calibration may be required when the scale is initially installed or moved to a new location.
Over time and use, mechanical deviations may occur so it is recommended that you
calibrate you scale regularly.
Before calibrating your should make sure you have a suitable weight. The weights should
be known to an accuracy that is appropriate for the balance being calibrated, for example,
OIML Class M1 type or ASTM E617 Class 4. If you do not have proper weights do not
attempt calibration.
Calibration weight: 500g, 1000g or 1500g.
1) To enter into the calibration parameter turn the power off and press [S/P/CE] and
[Recall/Tare] keys together once during the self check sequence.
2) The display will show UnLOAD, remove any weight from the pan.
3) Press the [Recall/Tare] key to enter a zero value.
4) The value last used for calibration will be displayed. To select a different calibration
weight, press the [S/P/CE] key. You can use either a 500g, 1000g or 1500g
calibration weight.
5) Once you have selected the weight to use press the [Recall/Tare] key.
6) LOAD will be displayed, place the weight on the pan.
7) Once the stable sign is shown press the [Recall/Tare] key.
8) If the weight is within 5% of the last calibration the display will show PASS and exist
the calibration routine. If the calibration is not successful the display will show FAIL
and exit the routine, if the calibration fails try again.

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7.0 TROUBLE SHOOTING
7.1 ERROR MESSAGES
If an error message is shown, repeat the step that caused the message. If the error
message is still shown then contact your Adam Equipment dealer for support.
ERROR
CODE
DESCRIPTION POSSIBLE CAUSES Solutions
ADO
A/D V
alue too high. Weight on the pan when
turning on.
Improper calibration of the
scale.
Damaged load cell.
Damaged Electronics.
Remove any weight from
the stainless steel pan.
Recalibrate.
ADL
A/D Value too low.
Pan is not installed when
turning on.
Calibration not correct.
Damaged load cell.
Install pan and try power
on.
Recalibrate.
-----
A/D count is not
correct when turning
the scale on.
Load cell damaged.
Electronics damaged.
Remove any weight form
the stainless steel pan and
try rebooting. Try
calibrating the machine.
Unit-E Unit error.
Low battery indicator.
Batteries may be flat. Change the batteries.
FAIL Calibration failure. Incorrect mass used to
calibrate. The user calibration
is not within 5% of factory
calibration.
Possible damaged to loadcell.
Try to recalibrate, check
that the weight used to
calibrate matches that of
the value of the scale.
Unstable – machine
cannot get a stable
reading.
Possible damage to the
mechanics / Loadcell.
Possible poor and drafty
location caused by
airconditioner or next to open
windows or doors.
Replace load cell by Adam
Equipment dealer.
Make sure the balance is
on a flat surface and away
from vibration and air
movement.
No Power when
turning on.
Battery may be flat. AC
adapter may not be working.
Change the batteries. Or
use the AC adapter

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7.2 REPLACEMENT PARTS AND ACCESSORIES
If you need to order any spare parts and accessories, contact your supplier or Adam
Equipment. A partial list of the more common items follows:
Part Number Description
4178
AC adapter USA plug 12VAC 150mA
9541
AC adapter UK plug 12VAC 150mA
9542
AC adapter Euro plug 12VAC 150mA
9543
AC adapter SA plug 12VAC 150mA
5099
AC adapter Australian plug 12VAC 150mA
9502 120 mm Stainless steel pan
9511 Draft shield lid
9510 Draft shield (without lid)
9306 In-use wet cover
8030 Security lock and cable

©Adam Equipment Company 2009 19

©Adam Equipment Company 2009 20
8.0 SPECIFICATIONS
Model # CQT1751GR
Maximum
Capacity 1750g
Readability 0.1g
Repeatability
(Std Dev) 0.2g
Linearity ± 0.2g
Units of
Measure Grams and Kilograms per hectolitre
Stabilisation
Time 2-3 seconds
Operating
Temperature
0ºC to 40ºC
32ºF to 104ºF
Power Supply 12VAC @ 150mA adapter or 6x AA
batteries
Calibration Push button calibration using external mass
Calibration Mass
500g, 1000g or 1500g
user selectable
Display 6 digit LCD, 18mm digits, with backlight
Draft shield
(diameter x h)
132mm ø x 82mm
(5.2” ø x 3.2”)
Balance
Housing ABS Plastic
Pan Size 120mm ø (5.1” ø)
Overall
Dimensions
(w x d x h)
173 x 255 x 86mm (6.8” x 10” x 3.3”)
Without draft shield
Net Weight 820g (1.8lb)