beautypg.com

Weighing, Precautions for the weighing operation, Basic operation (gram mode) – A&D Weighing HR-202i User Manual

Page 16

background image

14

6. Weighing

Precautions for the weighing operation

Press

the

RE-ZERO

key each time, before placing a sample on the weighing pan, to

prevent possible errors.

Place a sample in the center of the weighing pan gently.

Temperature changes during measurement may cause a weighing error.

Shorten the operation time as much as possible. ( Opening and closing door, placing and

removing a sample)

Use a pair of tweezers to avoid a temperature change due to having your hand in the

weighing chamber.

Material with an electrostatic charge or that is magnetic may cause a weighing error.

Do not press keys with a sharp instrument (such as a pencil or ball point pen).

Do not drop things on the pan, or place a weight on the pan that is beyond the weighing

range of the balance.

Calibrate your balance periodically to maintain weighing accuracy. Refer to section "8.

Calibration".

Keep the area clean and dry.

Consider section "3. Precautions" for the weighing operation.

For precision weighing, keep the AC adapter connected to the balance.


6.1.

Basic Operation (Gram Mode)

Read section "4. Display symbols and Key operation" before operation.

Note

When turning on the balance with a container placed on the
pan, the tare function sets the display to zero automatically.

1 Turn on the balance using the

ON:OFF

key.

2 Select a preset unit (g or mg) using the

MODE

key.

3 Place the container on the weighing pan, if necessary.

Press

the

RE-ZERO

key to cancel the weight (tare).

Then zero is displayed.

Container : A vessel placed on the pan, but not to be

included in the weighing data.

4 Place a sample on the pan or in the container.

5 Wait for the stabilization indicator

to be displayed,

then read the value.

6 Remove the sample and container from the pan.

Stabilization

indicator

Sample

Container

Weighing pan

Remove the sample

and container

This manual is related to the following products: