A&D HT-120 Specifications download pdf (Page 9)

CALIBRATION

When is Calibration Required?

Calibration may be required when

the scale was initially installed or

has been moved to another

location.

Calibration Using a Calibration Weight

Step 1 Press the Calibration switch while the scale is in the weighing mode.

Then, Cal will be displayed.

Step 2 Press the RE-ZERO key and Cal 0

g will be displayed.

With nothing on the weighing pan, press the RE-ZERO key.

Step 3 The display shows Cal blinking while waiting for the weighing

value to be stable. When becoming stable, the scale perform zero

calibration and will show Cal100

g (factory default) with tens place

digit blinking).

Select the next step as follows:

 Proceed to the span calibration of Step 4.

 Press the ON:OFF key to finish the procedure without

performing the span calibration.

Step 4 At the display Cal100

g , place the calibration weight 100 g (±2 mg)

on the center of the weighing pan and press the RE-ZERO key.

 To use the other calibration weight (50 g or more recommended),

press the UNITS key to change by 10 g and place the weight

equal to the displayed value.

Step 5 The display shows Cal blinking while waiting for the weighing

value to be stable. When becoming stable, the scale perform span

calibration and will show end . Remove the calibration weight

and press the ON:OFF key to finish the procedure.

Gravity Acceleration Compensation

The scale is calibrated with the gravity acceleration value 9.7985 m/s

at the factory. When the gravity acceleration at your location is

different value, you should calibrate the scale using a calibration

weight. But if the calibration weight cannot be prepared, change the

Calibration

switch cover

Calibration switch

1 2 3 4 5 6 7 8 9 10 11 12

No comments

A&D HT-120 Specifications Page 9