A&D HR-250AZ Instruction Manual page 76

AD-1671 Anti-vibration table
A 27-kg table with vibration-absorbing rubber feet, to reduce vibration
coming from the floor to enable stable weighing.
Use the AD-8922A remote controller to avoid weighing errors that can
be caused by slight table tilting when operating the scale manually.
AD-1672 Tabletop breeze break
Protects the balance from wind from sources such as air conditioning
or people passing by, thereby reducing balance weighing error.
The transparent panel assembly consists of antistatic plastic material
that protects the balance from static electricity.
AD-1683 DC static eliminator
Used to minimize weighing errors due to static electricity on the
material.
The AD-1683 is direct-current static eliminator. The ions generated
produce no breeze and are effective over a long distance. Therefore,
the balance can accurately weight powders, etc. by using the
AD-1683.
AD-1684 Electrostatic field meter
This option measures the amount of the static charge on the sample,
tare or peripheral equipment and displays the result.
If those are found to be charged, discharge them using the AD-1683
DC static eliminator.
AD-1687 Weighing environment logger
A data logger equipped with 4 sensors for temperature, humidity,
barometric pressure and vibration that can measure and store
environmental data.
When connected to the RS-232C interface of the balance, the
AD-1687 can store environmental data along with weighing data.
Therefore, it is possible to store data in an environment where a
computer can not be used.
The stored data can be read to a personal computer using USB.
As the AD-1687 is recognized as USB memory, special software is not
required to read the data.
AD-1688 Data logger
When connected to the RS-232C interface of the balance, the
AD-1688 can store the data in an environment where a personal
computer can not be used.
AD-1689 Tweezers for calibration weight
This option is used when calibrating the balance using an external
weight.
74