A&D AD-4430B Especificaciones descargar pdf (Pagina 40)

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7.3. Check Mode

The check mode checks the performance of the display, key switches and external I/O.

7.3.1. Entering The Check Mode

Step 1

Press the key while pressing and holding the key ( + ) to

display .

If returning to the weighing mode, press the key.

Step 2

Press the

key while pressing and holding the key (

+ ) to

display of the check mode. Press the key to display the check item

Step 3

Select the check item using the

key. Press the key to enter to it.

Press the key when exiting it

Display Item To Be Checked

Key check

BCD check

A/D converter output check (Load cell)

Internal count

Program version

Serial number

Program checksum

Memory checksum (EEPROM)

CALF check (CAL01 to CAL28)

7.3.2. Verifying The Switch Operation

When pressing the key, the corresponding segment moves.

If stopping the current check mode, press the key twice.

7.3.3. Monitoring The A/D Converter ( For Load cell Output)

The load cell output voltage rate is displayed in unit of mV/V .

ex. If internal count is 1.2345 mV/V ,

If value is above ±7 mV/V, a damage and connection error of the load cell may cause . Refer

to "7.5. Verifying The Load cell Connections Using Multimeter".

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A&D AD-4430B Especificaciones Pagina 40