Before Use; Precautions Before Use; Precautions During Use - A&D AD-4531B Instruction Manual

The digital indicator is a precision instrument. Unpack the digital indicator carefully and
confirm that all items are present.

2.1. Precautions before use

Avoid water and moisture.
Avoid vibration, shock, extremely high temperature and humidity, direct sunlight, dust
and air containing salt or sulfurous gases.
Avoid places where inflammable gases or vapors are present.
The operating temperature range is -10°C to +40°C.
A 100 VAC to 240 VAC power source is required. Use a stable power supply free
from sudden dropout or noise as they can cause malfunctions. Avoid sharing the
power line.
Keep cables away from power cables and other sources of electrical noise.
Connect only a non-inductive load of 10 kΩ or more to the analog voltage output
terminals.
Connect only a non-inductive load of 510 Ω or less to the analog current output
terminals.
When connecting long cables to the sensors, keep the cables away from power
cables and other sources of electrical noise.
Do not connect the AD-4531B to the power supply before installation is completed.
The AD-4531B has no switch to disconnect the power supply.
Use shielded load cell cables.
Do not connect too many sensors. Otherwise, instrument damage may occur.

2.2. Precautions during use

The AD-4531B is a precision instrument that measures the microvolt output from
sensors. Prevent noise sources such as power lines, radios, electric welders or
motors from affecting the instrument.
Do not try to modify the AD-4531B.
In all hold modes, the hold data is saved digitally, so there is no drooping of the value
displayed on the display panel or the analog output. Note that the hold function is
disabled when the AD-4531B is disconnected from the power supply.

2. BEFORE USE

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