Setup And Calibration; Calibration Inhibit Jumper - Cardinal 825 Installation And Technical Manual

Table of Contents

Your 825 indicator has been thoroughly tested and calibrated before being shipped to you. If

you received the indicator attached to a scale, calibration is not necessary. If the indicator is

being connected to a scale for the first time or recalibration is necessary for other reasons,

proceed as indicated.

Calibration and Setup of the indicator is accomplished entirely by the keypad. However, it may

require changing the position of the calibration jumper depending on the method of sealing

required by your local metrology laws.

Calibration Jumper (J10 – CAL INHIBIT)

The calibration jumper J10 (CAL INHIBIT) is located on the edge of the 825 circuit board and

can only be accessed by removing the rear panel of the indicator. See Figure No. 22 for the

location of the calibration jumper. Refer to the table below and Figure No. 22 for the jumper

settings.

When the calibration jumper is removed (off or on one pin), the word CAL will be illuminated

to the right of the main screen and calibration can take place. When the calibration mode is

selected, the indicator will display:

Hardware calibration enabled

Note that on an indicator with the jumper in this position, the Category 1 event counter

security seal is used as the sealing method.

When the calibration jumper is installed (on both pins), the word CAL will NOT be

illuminated to the right of the main screen and calibration is NOT permitted. With the jumper

installed, the calibration screens are "read only". When the calibration mode is selected, the

indicator will display:

Hardware calibration disabled

Note that on an indicator with the jumper in this position and a lead-wire seal, you cannot

perform the calibration unless you break the lead-wire security seal to access the calibration

jumper and remove it to enable the hardware calibration. Refer to the table below:

Calibration

Sealing Method

Jumper

Used

Position

OFF

Category 1

Event Counters

Category 1

Lead-Wire Seal