Adam Equipment CFC SERIES Manuale utente

Adam Equipment

CFC SERIES

SERVICE MANUAL

ADAM EQUIPMENT CO. LTD.

P.N. 7952, Rev. A2, February 2007

@Adam Equipment Company 2007

CONTENTS

1.0 INTRODUCTION ............................................................................................. 3

2.0 TROUBLE SHOOTING GUIDE ....................................................................... 4

3.0 ERROR CODES.............................................................................................. 5

4.0 CFC DESCRIPTION........................................................................................ 6

5.0 CFC USER PARAMETERS............................................................................. 7

6.0 CFC USER CALIBRATION.............................................................................. 9

7.0 CFC FACTORY PARAMETERS AND CALIBRATION ...................................10

7.1 FACTORY CALIBRATION..........................................................................12

8.0 LOAD CELL DAMAGE....................................................................................13

9.0 REPLACEMENT PARTS AND ACCESSORIES.............................................15

10.0 SCHEMATICS ................................................................................................16

@Adam Equipment Company 2007

1.0 INTRODUCTION

The CFC series of scales are general purpose counting scales. Refer to

the Operators Manuals for details of the general operation.

This manual will cover details of calibration and troubleshooting. If you

have a problem with the scales that is not directly addressed by this

manual then contact your dealer or Adam Equipment for more

assistance.

In order to supply further assistance we will need the following

information:

A. Details of your company

-Name of your company:

-Contact person’s name:

-Contact telephone, e-mail,

fax or any other methods:

B. Details of the unit purchased

(This part of information should always be available for any future

correspondence. We suggest you to fill in this form as soon as the unit is

received and keep a print-out in your record for ready reference.)

Model name of the scale:

Serial number of the unit:

Software revision number

(Displayed when power is first turned on):

Date of Purchase:

Name of the supplier and place:

C. Brief description of the problem

Include any recent history of the unit. For example:

-Has it been working since it’s delivered

-Has it been in contact with water

-Damaged from a fire

-Electrical Storms in the area

-Dropped on the floor, etc.

@Adam Equipment Company 2007

2.0 TROUBLE SHOOTING GUIDE

PROBLEMS POSSIBLE CAUSES

Display is blank Power Switch is faulty or not turned on

No turn on test Battery is faulty or not charged

Power supply is incorrect

Display all zeros after turn on Pan not installed

or E6 is displayed Unstable weight

Load cell damaged

Electronics faulty

‘- - - - -‘ appears on display Maximum capacity exceeded

Load Cell damaged

Electronics is faulty

Display is unstable Drafts or air currents

Obstruction under pan

Sample is moving (animal weighing)

Vibrations through table

Temperature changed dramatically

Electronics faulty

Battery low

Weight value incorrect Calibration error, Recalibrate

Unit calibrated with inaccurate weight

Balance not level

Obstruction between sample and cover

Wrong unit of weight displayed

Cannot use Full Capacity Over-load Stops hitting pan support or hitting

bottom of load cell

Electronics faulty

Parameters set incorrectly

Load Cell Damaged

Not Linear Overload stops hitting too soon

Faulty Factory Calibration

Off Centre Loading error Overload Stops not correct

Obstruction under pan

Battery will not charge Charging circuit failure

Battery failure

Incorrect adapter (below 800 mA)

Processor failure

@Adam Equipment Company 2007

3.0 ERROR CODES

ERROR CODE DESCRIPTION POSSIBLE CAUSES

Err 4 Initial Zero is greater than the

permissible value (typically 4%

of maximum capacity) when

power is turned on or when the

[Zero] 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.

Err5 Keyboard error. Improper operation of the

scale.

Err6 A/D count is not correct when

turning the scale on. Platform is not installed.

Load cell may be damaged.

Electronics may be

damaged.

FAILHor FAILL Calibration error Improper calibration.

If the problem persists

contact your dealer or Adam

Equipment for assistance.

@Adam Equipment Company 2007

4.0 CFC DESCRIPTION

The CFC scales have an enclosure with all components mounted within

it. To gain access to the components remove the 6 screws securing the

cover to the base.

The basic unit composed of:

Load Cell

Top Pan

Load Cell frame

Transformer / external adapter

Main PCB assembly with 3 LCDs

Battery

Keypad

All models of CFC are similar except the selection of load cells and the

program.

Normally if a problem is found with a circuit board the most cost effective

method of solving the problem is to replace the circuit board.

The main PCB assembly includes:

Sections for load cell input filter

A/D converter (AU1)

Microprocessor and support circuits (U1, U4)

Power supply / battery charger circuits (U3, T1)

Please note that whenever a new PCB is installed it should match the

processor and software that is intended to be used.

As the PCBs fit many models, there is no data loaded into the memory

devices. When fitting a new PCB, always set all factory and user

parameters and perform all calibrations to allow the ADC to begin

running and weight to be displayed.

@Adam Equipment Company 2007

5.0 CFC USER 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 [Tare] during initial

counting of the display after power is 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 [0] key four times when the display shows "PIn- - -",

Press the [Tare] key again.

•The following parameters can be accessed using the [M+]

key to cycle through the choices. The “UNIT WEIGHT”

display will show the name of the parameters. To enter a

parameter, press the [Tare] key. At any time press the [Zero]

key to return to weighing.

Display Description

F1 CAL See the calibration section for details.

F2 CAP Selects the scale capacity.

Scroll through the available options using the [M+] key. Press [Tare] to store

the value and return to menu.

F3 dISets the scale increment.

Press [Tare] to enter to menu. Press [M+] to show the options (5, 10 and 20).

Press [Tare] to accept the selection and return to menu.

F4 Cnt Displays the A/D counts.

Press [Tare] to see the count. Pressing it again will return to menu.

F5 PIn Sets a new password number. Press [Tare]. The “UNIT WEIGHT” display

will show "Pin1"

Enter the new password number then press [Tare].

Display will change to "Pin 2 ", Enter the password again and press [Tare].

The display will show "donE" to show the new password has been accepted

and will return to the menu. Record the new password in a secured place.

@Adam Equipment Company 2007

F6 Prt Sets the RS-232. Press [Tare] to show the following sub-menus.

PbAUd-Select from the desired baud rates

Press [Tare] to see the earlier setting. Press [M+] to scroll through

the options (600, 1200, 2400, 4800 and 9600). Press [Tare] to

select the desired value and return to the sub-menu.

PnodE-Sets the printing mode to-

AU on (Print anytime a weight is placed on the scale).

AUoFF (Print whenever the [Print] key is pressed).

P Cont (Print continuously the unit weight, no. of pieces and the

total weight).

SEIrE (Continuously print the weight only)

Press [Tare] to select and return to the sub-menu.

PArity– Select from the following settings-

n 8 1-8 data bits, no parity

E 7 1-7 data bits, even parity

o 7 1-7 data bits, odd parity

Press [Tare] to select and return to the sub-menu.

Press [Zero] to return to the menu.

F7 SPd This is used to set the speed at which the scale will run the ADC. The settings

available are 7.5, 15, 30 and 60- the slowest setting being 7.5 and the fastest

is 60. Press [Tare] to select the desired value and return to the menu. Press

[Zero] to return to weighing.

NOTE: If the User Parameters cannot be accessed using the default

code “0000”, use the factory code. See section 7.0 for details on Factory

parameters.

@Adam Equipment Company 2007

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