Table Top/Counting Scales
CKG Series
UGCKG-E0312
Contents
1 INTRODUCTION………………………………………………………………1
CTION 5 DISPLAYS………………………………………………………………….5
BASIC OPERATION…………………………………………………….…..7
TING……………………………………………………….…9
eset or check-weighing…………………………………………………….10
-232 OUTPUT…………………………………………………………..13
CKG counting scales user’s guide
- -
1
SECTION 1 INTRODUCTION
The CKG series of scales provides an accurate, fast and versatile series of counting and
check-weighing scales.
There are 4 models in this series, with capacities up to 30 kg.
They all have stainless steel weighing platforms on an ABS base assembly.
All the keypads are sealed, color coded membrane switches and the displays are large
easy to read liquid crystal type displays (LCD). The LCD’s are supplied with a backlight.
All units include automatic zero tracking, audible alarm for pre-set weights, automatic tare,
pre-set tare and an accumulation facility that allows the count to be stored and recalled as
an accumulated total.
CKG counting scales user’s guide
- -
2
SECTION 2 SPECIFICATIONS
2.1 CKG series
CKG SERIES
Model #
CKG -3000 CKG -6000 CKG- 15K CKG- 30K
Maximum Capacity
3kg 6kg 15kg 30kg
Readability
0.1g 0.2g 0.5g 1g
Resolution
1:30.00 1:30.00 1:30.00 1:30.00
Tare Range
-3kg -6kg -10kg -30kg
Minimum
2g 4g 10g 20g
Repeatability
(Std Dev)
0.1g 0.2g 0.5g 1g
Linearity ±
0.2g 0.4g 1g 2g
Units of Measure
kg
2.2 Common Specifications
Interface RS-232 Output Optional
Stabilisation Time 2 Seconds typical
Operating Temperature 0°C - 40°C / 32°F - 104°F
Power supply (external) 115/230 Vac,110/220Vac, 120/240 Vac, 50/60Hz,
Calibration Automatic External
Internal counts 600,000
Display 3 x 6 digits LCD digital display, 20mm digits
Balance Housing ABS Plastic, Stainless Steel platform
Pan Size 225 x 300mm / 8.9 x 11.8”
Overall Dimensions (wxdxh) 320 x 340 x 125mm / 12.6 x 13.4 x 4.9”
Gross Weight 3.8kg / 8.4lb
Other Features and Specs accuracy enhancement for parts counting, internal
rechargeable battery (~90 hours operation)
SECTION 3 INSTALLATION
3.1 GENERAL INSTALLATION
The scales should be sited in a location that will not degrade the accuracy.
CKG counting scales user’s guide
- -
3
Avoid extremes of temperature. Do not place in direct sunlight or near air conditioning
vents.
Avoid unsuitable tables. The tables or floor must be rigid and not vibrate. Do not place near
vibrating machinery.
Avoid unstable power sources. Do not use near large users of electricity such as welding
equipment or large motors.
Avoid high humidity that might cause condensation. Avoid direct contact with water. Do not
spray or immerse the scales in water.
Avoid air movement such as from fans or opening doors. Do not place near open windows.
Keep the scales clean.
Do not stack material on the scales when they are not in use.
3.2 INSTALLATION of CKG SERIES
The CKG Series comes with a stainless steel platform packed separately. Place the
platform in the locating holes on the top cover. Do not press with excessive force as this
could damage the load cell inside.
Level the scale by adjusting the four feet. The scale should be adjusted such that the
bubble in the spirit level is in the center of the level and the scale is supported by all four
feet. If the scale rocks readjust the feet.
Attach the main cable to the connector on the bottom of the scale. The power switch is
located on the base near the front of the scale.
SECTION 4 KEY DESCRIPTIONS
0-9, •
Numeric entry keys, used to manually enter a value for tare weights, unit weight, and
sample size.
CE C
CKG counting scales user’s guide
- -
4
Used to clear the unit weight or an erroneous entry.
Zero
Set the zero point for all subsequent weighing. The display shows zero.
Tare
Tares the scale. Stores the current weight in memory as a tare value, subtracts the tare
value from the weight and shows the results. This is the net weight. Entering a value using
the keypad will store that value as the tare value.
M+
Add the current count to the accumulator. Up to 99 values or full capacity of the weight
display can be added.
MR
To recall the accumulator memory.
Smpl
Used to input the number of items in a sample.
Unit Wt
Used to enter the weight of a sample manually.
PST or or Alr
To set the upper limit for the number of items counted. When this upper limit is exceeded
the scale will sound the beeper.
Print or
To print the results to a PC or printer using the optional RS-232 interface.
SECTION 5 DISPLAYS
5.1 Display map
The scales have three digital displays. The displays show WEIGHT, UNIT WEIGHT and
QUANTITY.
CKG counting scales user’s guide
- -
5
5.2 Weight Display
5.2 Weight Display
Digit display to indicate the weight on the scale.
Arrows above symbols will indicate the following:
Low battery,
Net Weight Display, "Net"
Stability indicator, "Stable" or
Zero Indicator, "Zero" or
5.3 Unit Weight Display
This display will show the unit weight of a sample. This value is either input by the user or
computed by the scale. The unit of measure is grams on all scales.
Indicators will show when the scale has determined that there is an insufficient number of
samples to accurately determine the count: "Sample" or symbol.
When
the unit weight is not large enough to determine an accurate count, "U. Weight" or
symbol.
In both cases the scale continues to operate and the indications are to alert the user to a
potential problem.
If a preset count has been stored the "Preset" or % symbol will have an arrow above it.
5.4 Quantity Display
This display will show the number of items on the scale or the value of the accumulated
count. See OPERATION section.
Indicators will show when a value has been entered into memory when the arrow above the
"Memory" legend is on.
Just under the quantity display is an LED to indicate the status of battery charging. When
the scale is plugged into the mains power the internal battery will be charged. If the LED is
green the battery has a full charge. If it is Red the battery is nearly discharged and yellow
indicates the battery is being charged.
CKG counting scales user’s guide
- -
6
SECTION 6 BASIC OPERATION
6.1 Zeroing The Display
You can press the ZERO key at any time to set the zero point from which all other weighing
and counting is measured, within 4% of power up zero. This will usually only be necessary
when the platform is empty. When the zero point is obtained the Weight display will show
the indicator for zero.
The scale has an automatic rezeroing function to account for minor drifting or accumulation
of material on the platform. However you may need to press ZERO to rezero the scale if
small amounts of weight are shown when the platform is empty.
CKG counting scales user’s guide
- -
7
6.2 Taring
There are two methods to enter a tare value. The first uses the weight on the platform and
the second uses a value input by the user.
6.2.1 normal tare
Zero the scale by pressing the ZERO key if necessary. The zero indicator will be on.
Place a container on the platform, a value for its weight will be displayed.
Press the TARE key to tare the scale. The weight that was displayed is stored as the tare
value and that value is subtracted from the display, leaving zero on the display. The "Net"
indicator will be on. As product is added only the weight of the product will be shown. The
scale could be tared a second time if another type of product was to be added to the first
one. Again only the weight that is added after taring will be displayed.
When the container is removed a negative value will be shown. If the scale was tared just
before removing the container this value is the gross weight of the container plus all product
that was removed. The zero indicator will also be on because the platform is back to the
same condition it was when the ZERO key was last pressed.
6.2.2 Predictable tare
This method allows you to enter a value for the tare weight from the keypad. This is
useful if all containers are the same or if the container is already full but the net weight is
required and the tare weight of the container is known.
Remove all weight from the platform, press the ZERO key to zero the display.
Enter the value for the Tare weight using the keypad, press TARE to store the tare value.
The weight will show a negative value equal to the tare.
Place the container on the platform.
The display will then show the weight of the container minus the tare weight. Then when the
full container is put on the platform the tare value will be subtracted from the gross weight
displaying only the net weight of the contents.
If the value input is not consistent with the increment of the scale the scale will round the
tare value to the nearest value possible. For example if a tare value of 10.3g is entered onto
the 6Kg/0.5g scale then the display will show -10.5g.
CKG counting scales user’s guide
- -
8
SECTION 7 PARTS COUNTING
7.1 Setting Unit Weight
In order to do parts counting it is necessary to know the average weight of the items to be
counted. This can be done by weighing a known number of the items and letting the scale
determine the average unit weight or by manually inputting a known weight using the
keypad.
Weighing a sample to determine the Unit Weight
To determine the average weight of the items to be counted it will be necessary to place a
known quantity of the items on the scale and then to key in the quantity being weighed.
The scale will then divide the total weight by the number of samples and display the
average unit weight.
Zero the scale by pressing the ZERO key if necessary. If a container is to be used, place
the container on the scale and tare as discussed earlier.
CKG counting scales user’s guide
- -
9
Place a known quantity of items on the scale. After the weight display is stable enter the
quantity of items using the numeric keys followed by SMPL key. The number of units will be
displayed on the "Quantity" display and the computed average weight will be shown on the
"Unit Weight" display.
As more items are added to the scale, the weight and the quantity will increase.
If the scale is not stable, the calculation will not be completed. If the weight is below zero,
the quantity display will show negative count.
7.2 Entering a Known Unit Weight
If the unit weight is already known then it is possible to enter that value using the keypad.
Enter the value of the unit weight using the numeric keys followed by pressing the UNIT WT
key. The "Unit Weight " display will show the value as it was entered.
The sample is then added to the scale and the weight will be displayed as well as the
quantity based upon the unit weight.
7.3 Parts Counting
After the unit weight has been determined or entered it is possible to use the scale for parts
counting. The scale can be tared to account for package weight as discussed in an earlier
section.
After the scale is tared then the items to be counted are added and the "Quantity" display
will show the number of items computed using the weight and the unit weight.
It is possible to increase the accuracy of the unit weight at any time during the counting
process by entering the count displayed then pressing the SMPL key. You must be certain
the quantity displayed matches the quantity on the scale before pressing the key. The unit
weight will be adjusted based upon a larger sample quantity. This will give greater accuracy
when counting larger sample sizes.
7.4 Automatic Part Weight Updates
The scales will automatically update the unit weight when a sample equal to less than the
sample already on the platform is added. A beep will be heard when the value is updated. It
is wise to check the quantity is correct when the unit weight has been updated
automatically.
This feature is turned off as soon as the number of items added exceeds the count used as
a sample.
7.5 Count Preset or Check-weighing
Check-weighing (Count Pre-setting) is a procedure to cause an alarm to sound when the
number of items counted on the scale meets or exceeds a number stored in memory by
using the PST key.
CKG counting scales user’s guide
- -
10
The stored value is entered from the keyboard. Enter the numeric value to be stored using
the numeric keys. Then press the PST key to store the value.
To clear the value from memory and thereby turn off the check-weighing feature, enter the
value "0" into the memory.
7.6 Manually Accumulated Total
The values (weight and count) shown on the display can be added to the values in the
accumulator by pressing the M+ key. The "Weight " display will show the total weight, the
"Count" display will show the total accumulated count and the "Unit Weight" display shows
the number of times items have been added to the accumulation memory. The values will
be displayed for 2 seconds before returning to normal.
The scale must return to zero or a negative number before another sample can be added to
the memory.
More product can then be added and the M+ key pressed again. This can continue for up to
99 entries, or until the capacity weight display is exceeded.
To observe the total stored press the MR key. The totals will be displayed for 2 seconds.
To clear the memory press MR to recall the totals from memory and then press the CE key
to clear all values from memory.
7.7 Automatic Accumulated Totals
The scale can be set to automatically accumulate totals when a weight is placed on the
scale. This eliminates the need to press the M+ key to store values into memory. However
the M+ key is still active and can be pressed to store the values immediately. In this case
the values will not be stored when the scale returns to zero.
See the PARAMETERS Section for details of how to enable Automatic Accumulation.
SECTION 8 BATTERY OPERATION
The scales can be operated from the battery if desired. The battery life is approximately 100
hours.
When the battery needs charging the arrow above the low battery symbol under the weight
display will turn on. The battery should be charged as soon as the arrow above the symbol
is on. The scale will still operate for about 10 hours after which it will automatically switch off
to protect the battery.
To charge the battery simply plug into the mains power. The scale does not need to be
turned on.
The battery should be charged for 12 hours for full capacity.
Just under the quantity display is an LED to indicate the status of battery charging. When
the scale is plugged into the mains power the internal battery will be charged. If the LED is
green the battery has a full charge. If it is Red the battery is nearly discharged and yellow
indicates the battery is being charged.
As the battery is used it may fail to hold a full charge. If the battery life becomes
unacceptable then contact your distributor .
CKG counting scales user’s guide
- -
11
SECTION 9 RS-232 OUTPUT
The CKG Series of scales can be ordered with an option RS-232 output.
Specifications:
RS-232 output of weighing data
ASCII code
4800 Baud
8 data bits
No Parity
Connector: 25 pin d-subminiature socket
Pin 2 Output
Pin 3 Input, not used at this time
Pin 7 Signal Ground
Data Format
Normal Output
Data Format
Memory Recall Print
GS 1.234 Kg GS for Gross weight, NT for net weight (with tare value stored)
U.W. 123 g Kg and g for metric and Lb for pounds.
PCS 10 pcs
<lf> Includes 2 line feeds
<lf>
**********
<lf> Includes 1 line feed
TOTAL
No. 5
Wgt 1.234 Kg .
PCS 10 pcs
<lf> Includes 1 line feed
**********
CKG counting scales user’s guide
- -
12
SECTION 10 PARAMETERS
To set the parameters it is necessary to enter a secure menu. This is done by entering a
password number when requested.
To enter the parameter menus press the TARE key during the initial counting of the display
after power turned on. The Weight Display will show "PIn" requesting the password
number to be entered.
The default password is "0000" but other numbers can be set using the parameter menus.
Press the "O" key four times. The display will show "PIn- - - -", Press the TARE key.
The Parameter menu has 5 functions that can be accessed using the Unit Wt. key to
cycle through the choices. The Weight Display will show the name of the functions. To
enter a function press the TARE key. At any time press the ZERO key to return to
weighing.
Weight Display Description
F1 CAL See the calibration section for details
F2 dI Set the scale increment. Press the Unit Wt
. key to cycle through
the options. Press TARE to accept the selection.
F3 Cnt Displays the A/D counts. Press Tare to return to menu.
F4 Au Press the Unit Wt. key to show the options. Select automatic
accumulation (Au ON) when the scale becomes stable, or Manual
accumulation (Au OFF), when the user must press the M+ key to
accumulate data. Also you can set this parameter as P CONT,
RS-2323 will send data continuously.
F5 AZN Set the auto zero range, Press the Unit Wt. k
ey to cycle through
the options(0.5d, 1d, 2d, 4d). Press TARE to accept the selection.*2
F6 PIn Set a new password number. Display will show "P1 "
Enter the new password number then press the TARE key.
Display will change to "P2 ", Enter the password again and press
TARE again.
The display will show "donE" to show the new password has been
accepted.
Record the new password number in a secure place.
F7 SPD Set ADC speed, press U. Wt. Key to select ADC speed, press Tare
key to enter
7.5: 7.5 times per second
15: 15 times per second
30: 30 times per second
60: 60 times per second
Note: 15 times per second or 30 times per second are
recommendatory
CKG counting scales user’s guide
- -
13
SECTION 11 CALIBRATION
11.1 Linear calibrate
Enter the parameter menus by password ”9999”
When the parameter menu show "F1 CAL" press the TARE key.
The display will then show "unLoAd" to request all weight be removed from the platform.
Press the TARE key to set the zero point.
The display will then show the first calibration weight request. Either put this weight on the
platform and then press the TARE key. The scale should be stable before pressing the
TARE key to accept a weight. The stability indicator will turn on to show the value is
stable.
When calibration is finished the display will enter into weighing mode if it was successful.
Calibration weights
CKG SERIES
Model # CKG 3000 CKG 6000 CKG 15K CKG 30K
Weight 1 zero zero zero Zero
Weight 2 1000g 2kg 5kg 10kg
Weight 3 3000g 6kg 15kg 30kg
11.2 Normal calibrate
Enter the parameter menus by your password (default:”0000”)
When the parameter menu show "F1 CAL" press the TARE key.
The display will then show "unLoAd" to request all weight be removed from the platform.
Press the TARE key to set the zero point.
Key in the calibration weight you want to use, then put this weight on the platform and then
press the TARE key. The scale should be stable before pressing the TARE key to accept a
weight. The stability indicator will turn on to show the value is stable.
When calibration is finished the display will enter into weighing mode if it was successful.
SECTION 12 ERROR CODES
During the initial power-on testing or during operation it is possible the scale may show an
error message. The meaning of the error messages is described below.
CKG counting scales user’s guide
- -
14
If an error message is shown repeat the procedure that caused the message, turning the
balance on, calibration or other functions. If the error message still is shown then contact
your dealer for further support.
ERROR CODE DESCRIPTION POSSIBLE CAUSES
Err 4 Initial Zero is greater than
allowed (4% of maximum
capacity) when power is
turned on or when the
ZERO/ENTER key is
pressed,
Weight on the pan when turning the
scale on.
Excessive weight on the pan when
zeroing the scale.
Improper calibration of the scale.
Damaged load cell.
Damaged Electronics.
Err 5 Keyboard Error. Improper operation of the scale.
Err 6 A/D count is not correct
when turning the scale on.
Platform not installed.
Load cell damaged.
Electronics damaged.
Err 9 Unstable, can’t return to
zero
When turn on the power, if internal
counts is not stable, display will have
“Err 9”, please check the platform and
load cell.
If the problem persist contact your
dealer or Taiwan scale for assistance.
Loading...