Gram VK Series User manual

USER’S MANUAL
EN
SERIE
VK

CONTENTS
1. Introduction ........................................................................................................ 3
2. Precautions ......................................................................................................... 3
3. Before Using the Product .................................................................................. 3
4. Product Introduction .......................................................................................... 4
5. Analog Section ................................................................................................... 6
6. Setting mode ....................................................................................................... 7
7. Dual Channel ...................................................................................................... 8
8. Operation .......................................................................................................... 12
8-2-1 Tare .............................................................................................................................. 12
8-2-2Preset Tare ................................................................................................................... 12
8-2-3 Auto-tare ...................................................................................................................... 13
8-3-1Key in a known unit value ............................................................................................. 14
8-3-2 Sample counting .......................................................................................................... 14
8-3-3 ACAI ............................................................................................................................ 14
8-4-1 Choose Accumulation Mode ........................................................................................ 15
8-4-2 Set the Max Account of accumulation ......................................................................... 16
8-4-3 Manual Accumulation .................................................................................................. 16
8-4-4 Accumulation display ................................................................................................... 17
8-4-5 Print while display of accumulation .............................................................................. 17
8-4-6 Delete accumulation .................................................................................................... 17
8-5-1 Set a Print form ............................................................................................................ 18
8-5-2 Set Print mode ............................................................................................................. 21
8-5-3 Select the Printer Model .............................................................................................. 21
8-6-1 Set Serial Number Mode ............................................................................................. 22
8-6-2 Set Max Serial Number ............................................................................................... 22
8-6-3 Change the Current Serial Number ............................................................................. 23
8-7-1 Set the high limit of quantity ........................................................................................ 23
8-7-2 Set the low limit of quantity .......................................................................................... 23
8-7-3 Enable / Disable the quantity check function .......................................................... 24
8-8-1Set the high limit of weight ............................................................................................ 24
8-8-2Set the low limit of weight ............................................................................................. 25
8-8-3Enable / Disable the weight check function .................................................................. 25
8-9-1Saving ID method 1 ...................................................................................................... 25
8-9-2Saving ID method 2 ...................................................................................................... 26
8-9-3Call up ID ...................................................................................................................... 26
9. Option ................................................................................................................ 29
10. Relay Module Diagram ................................................................................... 34

1. Introduction
Thank you for deciding to purchase a JCAII counting scale. This goods has the excellent
performance and splendid properties under severe quality management .It is recommended to
read this manual in full before using it for good function application.
2. Precautions
◎ Place the scale on a flat and stable surface. See 3-3 Leveling the Scale for details.
◎ Verify that the input voltage and the plug type matches the local AC power supply.
◎ Warm up the scale for 15 minutes before using it the first time.
◎ Keep the scale away from EMI noise, strong wind and vibration, which might cause incorrect
reading.
◎ Avoid sudden temperature changes (suitable operating temperature is between -5℃~ 40℃.)
◎ Disconnect the power supply when cleaning the scale.
◎ Do not immerse the scale in water or other liquids.
◎ Service should be performed by authorized personnel only.
3. Before Using the Product
3-1 Unpacking and Checking
Open the package and check the instrument for transport damage. Immediately inform your
dealer if you have complaints or if parts are missing. The package should contain:
● Scale body ● User manual
● Stainless steel pan ● Wire (power cord)
3-2 Installing Components
Cover the stainless steel pan on the top housing properly before using the scale.
Important:
Please find the delivery protection screw in the bottom of the scale. Loose it according to
the instruction sticker next to it
Before use the scale Loose the screw counter-clockwise to the end
Before move the scale Tighten the screw clockwise to the end
3-3 Leveling the Scale
To compensate for small irregularities or inclinations at the location, the scale can be leveled. The
scale is equipped with a level indicator at the front panel .Adjust the adjusting feet until the air
bubble in the indicator is centered as shown.
Note: The scale should be leveled each time its location is changed.

4. Product Introduction
4-1 Display
1) Weight Window: displays weight of object on weighing pan, or accumulated weight value.
2) Unit Weight Window: displays the average piece weight value, or number of weighments .
3) Total Count Window: displays the calculated number of pieces on the weighing pan, or
accumulated piece count value.
4) Tare or Preset Tare indication.
5) Center of Zero Indication, The zeroing range is ±2﹪of weighing capacity.
6）Symbol “ ” points at “PRESET TARE” when Tare value entered via numeric keys.
7） Under the sample counting mode, Symbol “ ” points at “SMPL” when calculated
unit weight is lower than 4/5 of scale division or the quantity of sample is less than 10 pieces.
8） “Accumulation” function is enabled under weighing mode.
9） Under entering a known unit weight mode, Symbol “ ” points at “UW” when entered unit
weight is lower than 4/5 of scale division. Unit weight is too small for ensuring accurate quantity
calculations.
10）Low Battery Indicator: When “ ” appears, the battery power requires recharging.
11）CHANGE Charge Lamp
Red--- battery is charging
Green---battery is fully charged

ACAI Symbol “ ” points at “ACAI” when Automatic counting accuracy improvement is
functioning.
STABLE Stable indication, Symbol “ ” appears at the top of “STABLE” when scale is in
stable condition.
NET Gross weight minus Tare. Symbol “ ” points at “NET” when manual Tare or preset are
actions are done.
4-2 Keypad
·Enters specific values for tare, unit weight and other data entries.
·Key can be also as a space key when edit label.
·Decimal point
·Initiates function setting
·Sets the weight to zero.
·Clears the indicated input values.
·Displays gross and net weight by turns
·Inputs unit weight and run its counting function

·Enters the sampling mode and change its scale choice(scale 1 or 2)
·Switches between main scale and remote platform
·
Adds the indicated weight or piece count value into Accumulation
memory.
·Enters label editing mode
·Steps to next parameter
·Deletes accumulation records
·Display year, date, time
·Go back to previous parameter
·Recalls and displays the accumulated data
·Selects/ sets the Hi Value of weight or piece
·change the next content of parameter
·units switch for the pre-tare function
·Selects the Lo value of weight or piece
·Changes to previous content of parameter
·Tare
·Give up any setting and return to normal weighing
·Call up unit weight ID
·Enable / switch on relay output function under HI/LO setting.
·Print
·Disable/ switch off relay output function under HI/LO setting.
5. Analog Section
Input sensitivity
1~4mV/V
Zero adj. Range
20% FS
A/D conversion rate
10 times per second.
Load cell excitation
5V DC
Number of load cells.
up to 4x350 ohm loadcells
Resolution.
1/30,000

6. Setting mode
1. Under the weighing mode, long press key for 3 seconds to enter basic
parameter setting mode.
2. Press or to switch between parameters from P-00 to P-07
3. Press key or to step through all the available setting options.
4. Press key to save the setting and return to weighing mode.
Parameter description
1. P-00 Power (default: off) Set the period of inactivity before the scale automatically turns off.
Options are Off =non power-off, 10, 20,30,40,50, 60, 70, 80 and 90 (minutes).
2. P-01 Backlight (default: auto)
=always off =always on =turn on when the weight is over 20e
3. P-02 Serial number display (default: off)
=never display =will display when price is zero
4. P-03 Beep sound (default: in)
= when check is OK = when check is Hi/Lo ( , = using scale’s buzzer)
- =when check is OK - =when check is Hi/Lo ( - , - =using light tower’s
buzzer)
5. P-04 ACAI (default: off)
Options: off/5/10/15/20/25/30/35/40/45
6. P-05 Printer model (default: normal)
Options: normal / EZ/ BP/SH/ZEBRA (normal as compatible printer)
7. P-06 Rs-232 Baud Rate (default: 9600)
Options: 19200 / 9600 / 4800 / 2400
8. P-07 Data (default: n81)
Options: n81 / o81 / e81 / n71 / o71 / e71

7. Dual Channel
7-1 Diagram of sub channel connector
7-2 Installation Process
1. Turn on the main scale
2. Connect the remote platform to JCAII main scale
7-3 Setup
1) Under the weighing mode, long press key for 3 seconds to enter basic parameter
setting mode.
2) Long press key to enter advance parameter setting mode.
3) Press key or to select parameter A-08.
4）Press key or to step through all the available setting items.

= Using main scale together with the remote platform
= Use the remote platform only
=Use the main scale only
5) Press key to save the setting and return to weighing mode.
7-4 Maximum Capacity & Division Setting & Unit
1) Press and hold while turning on the scale. Do not release till is
displayed in the Total Count window.
2) Use numeric keys together with to input the new capacity, press key to clears
the indicated input values.
3) Press key advance to division setting. Use numeric keys to input the new division.
4) Press key to advance to Maximum Capacity & Division Setting of the remote platform.
5) Repeat step 2-3 to complete the settings.
6) Press key to save the settings and return to weighing mode.
7）Press key to change its unit: kg, lb, g.

7-5 Calibration
= remote platform
= main scale
Note:
l Please calibrate the main scale first.
l The calibration steps of main scale and remote platform are the same. Press key to
switch the calibration for the main scale or remote platform before the zero point calibration.
l You can only do the calibration for the remote platform after you have set the max. capacity
and division of the remote platform.
Here take JCAII-6K as an example.
1. Press key and hold while turning on the scale. Do not release till
is displayed in the Unit Weight window.
3. With no load on the weighing pan, press key to start the zero point calibration and wait
till is displayed in the Unit Weight window. Input the first calibration weight value
by the numeric key (6K model, 1/3 of full load is 2kg). And then put the corresponding weights
on.
3... Press key and wait till is displayed in the Unit Weight window. And then put
the corresponding weights on.
4. Press key and wait till is displayed in the Unit Weight window. And then put
the corresponding weights on.

5. Press key and wait till is displayed in the Total Count window.
6. Press key to save the settings and return to weighing mode
7-6 Set AD gain of remote platform
1. Under normal weighing mode, press for 3 seconds to enter the basic parameter
setting.
2. Press for 3 seconds to enter the advanced parameter setting.
3. Press key or to select parameter A-07
4. Press or to select the AD gain. (Options: 1/2/4/8/16/32/64)
5. Press to save and return to normal weighing mode.
7-7 Switch between Main scale and Remote platform
1. Press to switch between main scale mode and sub channel mode (remote platform)
2. The flashed in the Weight Window.
3. When flashing disappear, means that you are in the sub channel mode (remote
platform). Now the remote platform could be used
4. To change back to the main scale mode just press , and will flash in the
Weight Window.
5. When flashing disappear, means that the scale have returned back to main scale

mode.
8. Operation
8-1 Zero-point
Press if you do not see “ ” but symbol “ ” appears
8-2 Tare & Preset Tare
8-2-1 Tare
1. Under the weighing mode, place a container weighing (eg. 0.100kg) on the pan.
2. Press key to complete tare action. The symbol appears with symbol
pointing at “NET”.
3. Put the load on the container. The display shown is the Net weight. Press key to see the
gross weight.
4. To clear tare, with an empty pan, press key
8-2-2Preset Tare
1. Input the tare value using the numeric key together with key , and press to switch
units(g / kg). (scale will beep if the tare value is larger than full capacity.)
2. Press key . The symbol appears with a symbol pointing at “NET” and
another pointing at “PRESET TARE”
3. Put the load on the container. The display shown is the Net weight. Press key to see
the gross weight.

4. To clear tare, with an empty pan, press key
8-2-3 Auto-tare
Set the high limit of the tare value
1. Press under normal weighing mode. appears in the Total Count window.
(If not, press )
2. Use numeric key to input the high limit value. Eg. 0.1kg.
3. Press to save and return.
Set the low limit of the tare value
1. Press under normal weighing mode. appears in the Total Count window.
. (If not, press )
2. Use numeric key to input the low limit value. Eg. 0.1kg.
3. Press to save and return.
Enable/disable the Auto-tare function
1. Under normal weighing mode, press or . appears in the Total Count
window. (If not press ).
2. If you want to enable auto-tare function, press

If you want to disable auto-tare function, press .
Note: the unit of normal weighing and tare setting are same.
8-3 Counting method
8-3-1Key in a known unit value
1. Use numeric key to input the unit weight value(eg.1.2g), then press key .
2. Put the article on the pan, and the scale starts counting
Note: Symbol “ ” points at “UW” when entered unit weight is lower than 4/5 of scale division. Unit
weight is too small for ensuring accurate quantity calculations.
8-3-2 Sample counting
Note: Do tare or zero-point before doing the following steps
1. Put samples onto the weighing pan and input the quantity with the numeric key.
(eg. 0.300kg, 20pcs)
2. Press key . The unit weight is calculated
3. Remove the samples and put on the articles, the scale begins to count
Note: Symbol appears pointing at “ ” in the Unit Weight window when sample quantity
is less than 10 pieces.
8-3-3 ACAI
Automatic Counting Accuracy Improvement (ACAI) results in a more accurate count by
increasing the reference weight without the need to count additional parts. A higher
reference weight is important when there is a risk of inconsistent piece weights or if the
reference weight is close to the minimum. ACAI uses an initial averaging unit weight to count
additional weight that is placed on the scale. After a few seconds, the scale gives a beep as
a new higher reference weight is used to recalculate the averaging unit weight. The process
can be repeated as long as the additional weight is less than the less than previous reference

weight. Once the limit is exceeded ACAI is turned off.
Note:
l If you set the average parameter (P4) to OFF, it means that the scale will do the ACAI in all
situations.
l If you set the average parameter to 15, the scale will not work if there is an object shortage or
more than ±15% of the unit weight.
l Whether it works or not, depends on the object’s tolerant of weight.
8-3-4 Simple Recipe Function
1. Hold the for 3 seconds under the normal weighing mode, then press to set the
advance parameter. Press key or to select parameter A-10, and press or
to activate or disable this function.
2. Press to save the setting and return to normal weighing mode.
3. Activate the simple recipe function, and press after put the item on the weighing pan,
then the scale will tare automatically when keeping the item. Repeat the same operation until
get all material needed for a recipe.
4. Press MR to check all accumulation items.
5. Clear the weighing pan and press TARE to continue a second recipe weighing.
8-4 Accumulation
8-4-1 Choose Accumulation Mode
1. Press with no load on the pan.
2. Press or to choose the accumulation mode
=Manual
= Auto-accumulate when symbol appears

= Auto-accumulate when quantity is between HI – LO limits
= Auto-accumulate when weight is between HI – LO limits
3. Press to save and return.
8-4-2 Set the Max Account of accumulation
The max accumulation number is 99. You can change the max accumulation number as following:
For example, if you want to change the accumulation number to 9
1. Press and the Unit Weight display is blinking.
2. Press to save and return. And now you can accumulate up to 9 times only.
Note: You can change the max accumulation back to 99 times by repeating the above steps.
It will beep for 3 seconds when accumulate to the max account (eg. Max accumulation=9) and the
is blinking
Under this condition, you have the following options:
l Press , it will print every set and total, is still blinking. (It is only for normal printer
SH-24. Label printer could not do it.)
l Press to return to normal weighing mode, and still keep accumulation.(But if you try to
accumulate another set, it will appear to warm)
l Press twice to delete all accumulation,
8-4-3 Manual Accumulation
1. Put the article on the pan. Press key . The symbol “ ” is blinking in the Unit
Weighting window. This is the first accumulation.

2. The symbol will appear pointing at the “ “ after the blinking.
3. Repeat step 1.
4.Press to return to normal weighing mode.
8-4-4 Accumulation display
1. Press to see the last accumulation value.
2. Press once more to see the total accumulations value.
3. After the above two steps, press again, it will display every accumulation value one by
one.
4. Skip 2-3 steps and press any numeric key to see a certain accumulation. For example, if you
want to see the 12th accumulation, press key .
5. Press to return to normal weighing mode.
8-4-5 Print while display of accumulation
Note: Only for SH-24
Print a certain accumulation
Enter a certain accumulation display, press
Print total accumulation
Enter total accumulation display, press
Weight on the scale will print out every set and total
No weight on the scale will just print out the total
8-4-6 Delete accumulation
Delete a certain accumulation
1. Enter a certain accumulation display, press to delete.

2. Press to return to normal weighing mode.
Delete total accumulation
1. Enter the total accumulation display, press to delete.
2. Press again to delete and return to normal weighing mode. If you don’t want to delete,
press to return to normal weighing mode.
8-5 Print
Put the load on the pan and press key to print. (Note: the weight should be more than 20e)
8-5-1 Set a Print form
EZ/BP/GP set 0~99 forms (The printer should be initialized first); SH-24 set 0~15 forms
1. Press key with no load on the pan.
2. Key in the Form Number with numeric key. For example, if you want to choose the 9th form, press
.
3. Press key to complete and return to weighing mode.

Samples of BP/ EZ /GP Print Forms (Preset 10 forms, at most 100 forms)
Note
：
(1) Please contact your supplier/-dealer for additional EZ /BP/GP print forms.
(2) The print forms are installed into the printers through PC. Please email us and we will make
the requested print form for you. (Note: for Prt-02, we suggest to use large label with the
width of 100mm as the bar code is longer.)
Samples of SH-24 Print Forms

When appear under
display of accumulation, press
.the printout will be as
following.
Prt08-15 print forms
with unit weight
Prt08-15 print forms
with tare weight
Note: (1)If you wish the SH-24 should be able to print date & time, the scale needs an optional
module RS-232+RTC.
(2)If you have a printer that you think is compatible with the SH-24, then just connects the
scale and the printer and remember to choose print model (even it is not the SH-
24). Please choose own of the print formats from Prt-00 to Prt-15 and if the print appears
correct, means that the printer is compatible with the SH-24.