A D HR-250AZ Compact Analytical Balances User Guide
- June 9, 2024
- A D
Table of Contents
A D HR-250AZ Compact Analytical Balances User Guide
Introduction
This quick start guide describes the basic functions and operations of the balance ( HR-AZ / HR-A series). The functions and operating procedures of the balance are explained in details in the “HR-AZ / HR-A series Analytical Balance INSTRUCTION MANUAL”. This manual can be downloaded from our website https://www.aandd.jp.
2021 A&D Company, Limited. All rights reserved.
Installation and Precautions
The balance is a precision instrument. Unpack it carefully. It is recommended
to keep the packing materials to be used for transporting the balance in the
future. The packing contents differ depending on the balance model. See the
following illustrations to confirm that everything is included.
Cautions:
Verify that the AC adapter type is correct for your local voltage and
receptacle type. Use the dedicated AC adapter specified for the balance. Do
not use the AC adapter provided with the balance for other instruments. If you
use a wrong AC adapter, the balance and other equipment may not operate
properly
Precautions for Installing and Weighing
Caution Do not install the balance where flammable or corrosive gas is present.
To obtain the optimum performance from the balance and acquire accurate weighing data, note the following:
- Install the balance in an environment where the temperature and humidity are not excessive. The best operating temperature is about 20 °C ±2 °C at about 45% to 60% RH relative humidity.
- Install the balance in a location that it is free of dust.
- The weighing table should be solid. (An anti-vibration table or stone table is ideal)
- Place the balance on a horizontal table, and make sure that it is not tilted.
- Install the balance in a stable place avoiding vibration and shock. Corners of rooms on the first floor are best, as they are less prone to vibration.
- Install the balance where it is not affected by heaters or air conditioners.
- Install the balance where it is not exposed to direct sunlight.
- Install the balance away from equipment that produces magnetic fields.
- Be sure to connect the AC adapter to the balance and the power supply before use for at least an hour, warm up the balance.
- Perform the sensitivity adjustment before using it for the first time or after having moved it to another location so that accurate weighing can be performed.
- Level the balance by adjusting the leveling feet so that the bubble of the bubble spirit level is centered in the red circle
The balance is level. Correct
weighing.
The balance is tilted. Inaccurate weighing
Bubble Sprit Level
Display Symbols and key operations
Display Symbols
- Number of statistical data (Statistical calculation mode)
- The ratio between the weighing value and the weighing capacity, in a percentage, in the weighing mode. (Capacity indicator)
- Parameters of function.
Key Operations
The behavior of the balance differs depending on whether you “Press and release the key immediately” or “Press and hold the key (for 2 seconds)”. The normal weighing operation is to ”Press and release the key immediately”. Do not hold down the key unless you need to
Press the key (Press and release the key immediately.)
Press and hold the key (for approx. 2 seconds)
Specifications
| HR-100AZ HR-100A| HR-150AZ HR-150A| HR-250AZ HR-250A| HR-
251AZ HR-251A
---|---|---|---|---
Weighing capacity| 102 g| 152 g| 252 g
Maximum display| 102.0084 g| 152.0084 g| 252.0084 g| 252.008 g
62.0009 g 1
Readability| 0.1 mg| 1 g
0.1 g
Repeatability (Standard deviation)| 0.1 mg| 0.2 mg (200 to 250 g)0.1 mg (0 to
200 g)| 0.5 mg
0.1 mg
Linearity| ±0.2 mg| ±0.3 mg| ±1 mg
±0.3 mg
- The balance allows weighing using a precision range, even with a heavy tare placed on the pan. (Smart range function)
Support
A &D Company, Limited
3-23-14 Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013, JAPAN
Telephone: [81] (3) 5391-6132
Fax: [81] (3) 5391-1566
