Adam Equipment AZextra Series User manual

.
Adam Equipment
AZextra SERIES
Service Manual
Software rev.: 2.29A & above
ADAM EQUIPMENT CO. LTD.
P.N. 6316, Rev. B5, October 2007
© Adam Equipment Company 2007

© Adam Equipment Company 2007

© Adam Equipment Company 2007 1
CONTENTS
1.0 INTRODUCTION.......................................................................................................3
1.1 FEATURES ...........................................................................................................3
1.2 SPECIFICATIONS.................................................................................................3
2.0 TROUBLESHOOTING..............................................................................................4
3.0 INSTALLATION.........................................................................................................5
3.1 GENERAL INSTALLATION...................................................................................5
3.2 PREPARATION FOR USE ....................................................................................5
3.3 DISPLAY WINDOWS ............................................................................................6
3.4 BATTERY CHARGING..........................................................................................7
3.5 KEY DESCRIPTIONS............................................................................................8
4.0 OPERATION.............................................................................................................9
5.0 CALIBRATION..........................................................................................................9
5.1 CALIBRATION PROCEDURE...............................................................................9
5.2 SECURITY SEALS................................................................................................9
5.3 CALIBRATION PROCEDURE.............................................................................10
6.0 SERVICE PARAMETERS.......................................................................................10
6.1 USING “0000” TO ENTER THE CALIBRATION PARAMETER............................10
6.2 USING “2006” TO ENTER THE SERVICE PARAMETERS..................................11
6.2.1 F1 -CALIBRATION............................................................................................12
6.2.2 F2 -RESOLUTION ............................................................................................13
6.2.3 F3 –UNIT ..........................................................................................................13
6.2.4 F4 -CAPACITY..................................................................................................13
6.2.5 F5 -UNIT PRICE/TOTAL PRICE DECIMAL POINT LOCATION........................14
6.2.6 F6 -INITIAL ZERO RANGE...............................................................................14
6.2.7 F7 -RE-ZERO RANGE ......................................................................................15
6.2.8 F8 -SUCCESSIVE TARE..................................................................................15
6.2.9 F9 -A/D COUNT................................................................................................15
6.2.10 F10 –ROUNDING OFF THE TOTAL PRICE......................................................16
6.2.11 F11 –ZERO........................................................................................................16
6.2.12 F12 –LOW VOLTAGE DETECTION..................................................................17
7.0 WIRING DIAGRAM.................................................................................................18
8.0 MECHANICAL ASSEMBLY ....................................................................................19

© Adam Equipment Company 2007 2
8.1 LIST OF MECHANICAL ASSEMBLY...................................................................20
9.0 PILLAR ASSEMBLY................................................................................................21
10.0 FRONT DISPLAY ASSEMBLY ...............................................................................22
11.0 REAR DISPLAY ASSEMBLY .................................................................................23
12.0 PILLAR DISPLAY ASSEMBLY...............................................................................24
*****

© Adam Equipment Company 2007 3
1.0 INTRODUCTION
The AZextra series of digital price-computing scales provide an accurate, fast and
versatile method of computing price by weight. These series of scales are EC
approved for the use in UK and Europe.
For all revisions from 2.29 and above, the Price per kilogram and per 100 gram [Kg
100g] key can be disabled at the factory for the scales to be used in South Africa
and Far East. This is done by linking the jumper at K5 position on the PCB.
1.1 FEATURES
Stainless steel weighing platform
Level indicator with adjustable levelling feet
Colour coded, sealed keypad
Large liquid crystal displays (LCD)
Displays for Weight, Unit Price and Total Price
Price per 100g and per kilogram (Not applicable for South Africa and Far East)
Displays on both front and back panels (Optional user display on pillar)
Auto sleep function
Auto clear function
Real Time Clock (RTC) and date
Battery operated for portability
90 hours battery life when fully charged
Up to 103 Prices (PLU) stored for easy access
1.2 SPECIFICATIONS
AZextra
3
AZextra
6
AZextra
15
AZextra
30
AZextra
3P*
AZextra
6P*
AZextra
15P*
AZextra
30P*
Maximum Capacity 3 kg 6 kg 15 kg 30 kg 3 kg 6 kg 15 kg 30 kg
Readability 1 g 2 g 5 g 10 g 1 g 2 g 5 g 10 g
Tare -3 kg -6 kg -15 kg -30 kg -3 kg -6 kg -15 kg -30 kg
Pan size 225 x 275 mm
Operating
Temperature
-10ºC to 40ºC
Battery life 90 hours typical. Battery Life is less when the backlight is used.
Power Mains power supply to an internal transformer
Interface RS-232 bi-directional interface
English, German, French, Spanish selectable text

© Adam Equipment Company 2007 4
Date/Time Real Time Clock (RTC), To print date and time information
(Dates in year/month/day, day/month/year or
month/day/year formats- Battery backed)
Display 3 x 6 digits backlit LCD displays
Housing ABS Plastic with Stainless Steel Pan
Overall Dimensions 315 x 355 x 110 mm 315 x 355 x 535 mm
Net Weight 4.3 kg 4.7 kg
*NOTE: AZextra-P models have the Pillar Display.
2.0 TROUBLESHOOTING
1. Unit does not
turn on
Check whether the scale is plugged into the power supply properly.
Check the operation of the charging circuit.
Check whether the battery is charged- LED should turn to green
from red.
Check the adapter output.
.
2. The scale
weighs but is
unstable
Air drafts or vibration or unstable table.
Pan rubbing against case or not installed correctly.
Scale not installed properly.
Improper connections on ADC circuit.
3. Scale shows
wrong weight
Scale not installed correctly.
Check the Calibration.
To check whether a part of product weighed is trapped between
the pan and the scale.
Incorrect adjustment of the mechanical stops.
4. An error “E4”
displays on the
screen
Load cell damage.
Scale not installed properly.
Incorrect adjustment of the mechanical stops.
Factory calibration has been tampered with- check the ADC counts
and re-calibrate.

© Adam Equipment Company 2007 5
3.0 INSTALLATION
3.1 GENERAL INSTALLATION
The scales should not be placed in a location that will reduce the accuracy.
Avoid extremes of temperature. Do not place in direct sunlight or near air conditioning
vents.
Avoid unsuitable tables. The table or floor must be rigid and not vibrate.
Avoid unstable power sources. Do not use near large users of electricity such as welding
equipment or large motors.
Do not place near vibrating machinery.
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
or air-conditioning vents.
Keep the scales clean. Do not stack material on the scales when they are not in use.
3.2 PREPARATION FOR USE
The scales come with a stainless steel platform, packed separately.
Place the platform in the receptacles on the top cover.
Do not press with excessive force as that could damage the load cell inside.
If an optional scoop has been supplied, place it on top of the platform.
If an optional display on Pillar is supplied, install the pillar in the upright position into the
socket at the rear of the scale by carefully pushing the cable inside the pillar rod. Secure
the pillar rod to the socket by using two M4 screws. A black plastic cap is provided to seal
the socket from the bottom to avoid damaging of the cable.

Level the scale by adjusting the four feet. The scale should be adjusted such that the
bubble in the spirit level is in the centre of the level and the scale is supported by all four
feet.
Turn the power ON using the switch located on the right side of the base.
The unit will display the software revision number in the Weight window and count down
to zero while performing a self-test.
When ready all three displays will show zero.
Level the scale by adjusting the four feet. The scale should be adjusted such that the
bubble in the spirit level is in the centre of the level and the scale is supported by all four
feet.
Turn the power ON using the switch located on the right side of the base.
The unit will count down while performing a self-test.
When ready the displays will show zero.
3.3 DISPLAY WINDOWS
Not applicable for South Africa and Far East
The window for the Weight has arrows to indicate when the scale is at zero or if the scale
is displaying a net weight (if a tare value has been entered). It also indicates when the
scale is stable.
The window for the Unit Price has arrows to show when the Auto Clear function is active
and whether it displays the price per 100g or per kilogram.
© Adam Equipment Company 2007 6

NOTE: For AZextra for South Africa and Far East, unit price per 100g or per kg is not
available.
The window for the Total Price windows the price of the items on the scale. Below this
window is a LED to show the state of the battery charger.
The above display panel is also available with French, German, Spanish, Dutch
and Italian text or with s
y
mbols for Wei
g
ht, Unit Price and Total Price.
3.4 BATTERY CHARGING
The scale has an internal rechargeable lead acid battery. This battery will make the scale
operate for 90 hours when fully charged or less if the backlight is on.
When the battery needs charging the arrow above the low battery symbol under the
Weight window will be on and the display will show “Lo Bat” for a few seconds. The “Lo
Bat” message will be repeated every few minutes as a reminder. The battery should be
charged immediately. The scale will still operate for about 15 minutes after which it will
automatically switch off to protect the battery from getting damaged.
To charge the battery, simply switch the main power ON. The scale does not need to be
turned on.
The battery should be charged for 12 hours for full capacity.
Just under the Total Price window is an LED to indicate the status of battery charging.
When the scale is plugged into the main power, the internal battery will be charged. If the
LED is green the battery is fully charged. If it is red the battery is nearly discharged and
yellow indicates the battery should be charged longer, preferably overnight.
© Adam Equipment Company 2007 7

3.5 KEY DESCRIPTIONS
Not applicable for South Africa and Far East
© Adam Equipment Company 2007 8
[0-9] keys
Numeric entry keys to set the unit price. Pressing [00] will display the price with “00” added
after the digit.
[CE] key
Used to clear an erroneous entry or return to normal operation.
[PLU1] to [PLU+]
Used to store or recall one of the PLU values. [PLU1] to [PLU2] are immediately used,
[PLU+] will also select one of the 99 additional values.
[Tare] key
It tares the scale to display zero weight when an empty container is placed on the platform
or removed again.
[Zero] key
It sets the zero of the scale when the platform is empty and no tare value is entered.
[Auto Clear]
It enables the user to automatically reset the unit price to zero, when the weight is
removed.
[Kg 100g]
It selects the unit price per 100g or per kilogram.
[Print] key
It sends the results of the current displays to the RS-232 interface.
NOTE: For AZextra for South Africa and Far East, this selection of unit price per 100g
or per kilogram is not applicable.

4.0 OPERATION
Please refer to the User Manual for the details on operation.
5.0 CALIBRATION
5.1 CALIBRATION PROCEDURE
The scales are sealed to prevent unauthorised calibration.
Contact Adam Equipment or your supplier for more details.
The calibration of the AZextra scale is
accomplished by removing the label at
the base of the scale which covers a hole
through which the PCB can be accessed.
If your scale is not provided with this
hole, you need to break the security
seals and remove the top cover to gain
access to the circuit boards inside. See
the figure on the security seal below.
WARNING: CALIBRATION OF THE SCALES MAY MAKE IT ILLEGAL TO
USE THE SCALES FOR SALES OF GOODS. CONTACT YOUR TRADING
STANDARDS OFFICE FOR FURTHER ASSISTANCE.
5.2 SECURITY SEALS
To seal the scale a lead-wire seal can be
used as shown below. The base has a
metal pin that protrudes through the
cover. The security seal may be threaded
through this metal pin, making it
impossible to remove the cover without
damaging either the security seal or the
enclosure.
Metrology labels and additional security
measures may be added to the scale as
required by the national legislation.
An alternative method of sealing the scales is to have a seal covering the joint between the
base and cover. If this seal is broken the scale must be sealed by the relevant authorities,
using either the lead wire seal or an acceptable seal between the cover and base.
© Adam Equipment Company 2007 9

5.3 CALIBRATION PROCEDURE
The scales are sealed to prevent unauthorised calibration.
AZextra scales need to be re-calibrated if the variation in gravity takes place due to change
in location or if the calibration done earlier was not correct.
The calibration is carried out by removing the label placed on the hole at the base of the
scale to gain access to the PCB inside.
The EC approved models should follow the requirements of the Metrological authorities to
have the scale verified for use after calibration.
If calibration is not possible, the load cells or PCBs may have been damaged. Contact
Adam Equipment or the supplier.
6.0 SERVICE PARAMETERS
6.1 USING “0000” TO ENTER THE CALIBRATION PARAMETER
Calibration can be enabled by placing a jumper into the pins on the main PCB (marked as
position J4) through a hole provided on the base of the scale. After the jumper has been
placed in the position shown, apply power to the scale.
Turn the scale upside down.
Remove the seal covering the hole to access
the PCB.
Place a jumper through the hole into the pins. If
a jumper is not available, short the pins when
power is first turned on.
Turn on the scale using the switch on the base.
© Adam Equipment Company 2007 10

© Adam Equipment Company 2007 11
“Pn”
When “Pn” is displayed.
Enter “0 0 0 0” and press [Tare]
“UnLoAd ”
Empty the pan by removing the load, if there is
any and press [Tare]
“LoAd” “6” “KiLoS” Load the requested calibration weight and press
[Tare]
“SPAn” “PASS” If Calibration is complete, “SPAn PASS” will be
displayed. Remove the calibration weight.
Or, “SPAn” “FAiL” This means calibration has failed. Remove the
calibration weight and repeat the process.
“JP On” Remove the jumper or shorting of the pins
whichever is used. The scale will return to
normal weighing.
6.2 USING “2006” TO ENTER THE SERVICE PARAMETERS
After the jumper has been placed in the position shown, apply power to the scale.
The display will ask for a code number, “Pn “ on the Weight window.
Enter the number 2006 when “Pn “ is displayed and then press [Tare].
The displays will show the first parameters, called “F1” “CAL”. To select another parameter
press the [Print] key to advance through the parameters.
Press the [Tare] key to enter a parameter.
To exit a parameter, press the [Zero] key.
The Weight window will show the parameter number and the Unit Price window will show
the word describing the function.
When a parameter is entered by pressing the [Tare] key, the displays will guide you
through the parameter selected and the options available.

© Adam Equipment Company 2007 12
The parameters available are:
F1 CAL To enter the Calibration
F2 rES Resolution selection
F3 Unit Select kilograms or pounds
F4 CAPA Select capacity
F5 Point Unit Price/Price decimal point
F6 initZEro Initial Zero Range
F7 rEZEro Re-Zero range
F8 SCSivEtArE Successive Tare Enable
F9 AdCoUnt Display the A/D counts
F10 roUnd Rounding off the Total Price
F11 ZEro Select the zero mode
F12 LvdmodE Low voltage detection
6.2.1 F1 -CALIBRATION
To enter the calibration parameter, press the [Tare] key when “F1” is displayed.
The display will instruct you to remove any weight from the scale, “UnloAd”. Press [Tare].
The display will tell you to add weight to the scale: “LoAd” “ 15” “kilo”
Add the weight shown, wait for stability then press the [Tare] key.
The display will show “SPAn” “PASS” if the calibration is OK. Or it will show “SPAn” “FAIL” if
calibration could not be completed correctly.
The display will then show “JP” “On” showing the jumper is still in place. Remove the
weight. Switch off the scale and switch it on again to continue with the other Service
parameters.

© Adam Equipment Company 2007 13
6.2.2 F2 -RESOLUTION
To enter this parameter, press the [Tare] key when “F2” is shown.
The display will show the current resolution, either 3000 or 6000 or Dual Range.
Press the [Print] key to change the value.
Press [Tare] to accept the displayed value.
NOTE: Only 3000 is allowed for the AZextra scales.
6.2.3 F3 –UNIT
Select either kilograms or pounds weighing units. Effects RS-232 output only.
To enter this parameter, press the [Tare] key when “F3” is shown.
The display will show the current unit, either kilograms or pounds.
Press the [Print] key to change the value.
Press [Tare] to accept the displayed value.
6.2.4 F4 -CAPACITY
To enter this parameter, press the [Tare] key when “F4” is shown.
The display will show the current capacity in 6, 15 or 30 kilograms.
Press the [Print] key to change the value.

© Adam Equipment Company 2007 14
Press [Tare] to accept the displayed value.
NOTE: The scale must be originally built for the capacity selected. The 3kg unit uses the
5kg load cells, 6 kg unit uses 10kg load cells, the 15 kg unit uses 20 kg load cells and the
30 kg unit uses 35 kg load cells.
6.2.5 F5 -UNIT PRICE/TOTAL PRICE DECIMAL POINT LOCATION
To enter this parameter, press the [Tare] key when “F5” is shown.
The display will show the current decimal point location in the Unit Price and the Total
Price windows.
Press the [Print] key to change the value.
Press [Tare] to accept the displayed value.
NOTE: The units must match the currency used in the country. Normally 0.00 is shown.
6.2.6 F6 -INITIAL ZERO RANGE
To enter this parameter, press the [Tare] key when “F6” is shown.
The display will show the current initial zero range.
Press the [Print] key to change the value and press [Tare] to accept the value.
NOTE: Only 10% is allowed for the AZextra scales.

© Adam Equipment Company 2007 15
6.2.7 F7 -RE-ZERO RANGE
To enter this parameter, press the [Tare] key when “F7” is shown.
The display will show the current re-zero range.
Press the [Print] key to change the value and press [Tare] to accept the value.
NOTE: Only 2% is allowed for the AZextra scales.
6.2.8 F8 -SUCCESSIVE TARE
To enter this parameter, press the [Tare] key when “F8” is shown.
The display will show if the successive tare is on or off.
Press the [Print] key to change the value.
Press [Tare] to accept the displayed value.
NOTE: Either option is allowed for the AZextra scales.
6.2.9 F9 -A/D COUNT
To enter this parameter, press the [Tare] key when “F9” is shown.
This parameter allows you to view the A/D counts from the internal A/D converter. This can
be an aid to service.
Press the [Tare] key to return to the PARAMETER menu.
Press the [Zero] key to return to weighing.

© Adam Equipment Company 2007 16
Typical value at zero is 30,000-90,000 (approx.)
Typical value at full capacity is 500,000 (approx.)
6.2.10 F10 –ROUNDING OFF THE TOTAL PRICE
This parameter allows you to set the value to 1 or 5 for rounding off the least significant
digit of the Total Price. For example, if the value is set to 1, the Total Price will remain as
12.47 for the original value of 12.47 and if it is set to 5, the Total Price will be rounded off
to 12.45 instead of 12.47.
To enter this parameter, press the [Tare] key when “F10” is shown.
The display will show the current settings.
Press the [Print] key to change the value and press [Tare] to accept the value.
Press [Tare] to return to the PARAMETER menu.
Press [Zero] to return to weighing.
6.2.11 F11 –ZERO
This parameter allows the normal method of setting zero or a slightly different method
required for Sri Lanka to be used.
To enter this parameter, press the [Tare] key when “F11” is shown.
The display will show the current settings, “modE 1” or “modE 2”. “modE 1” is to be
selected at all times unless the scale is intended for Sri Lanka.
Press the [Print] key to change the value and press [Tare] to accept the value.

Press [Tare] to return to the PARAMETER menu.
Press [Zero] to return to weighing.
6.2.12 F12 –LOW VOLTAGE DETECTION
This parameter allows detection of low voltage when the battery wears down.
To enter this parameter, press the [Tare] key when “F12” is shown.
The display will show if the LVD Mode is set to on or off.
Press the [Print] key to change the value.
Press [Tare] to accept the displayed value.
NOTE 1: Only the “on” option is allowed for the AZextra scales.
NOTE 2: TO SECURE THE SCALE AFTER CALIBRATION, IT IS NECESSARY TO
REMOVE THE JUMPER AND RE-SEAL THE SCALE.
NOTE 3: The scale has a special feature for displaying x10 the value of the weight
which is a useful tool during testing. Press the [00] key for more than 3 seconds. It will
show one extra decimal place making it a high resolution display. Pressing the [00] key
again for more than 3 seconds will bring the display back to the normal resolution.
© Adam Equipment Company 2007 17

7.0 WIRING DIAGRAM
© Adam Equipment Company 2007 18