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Introduction
Precautions for Correct Use
Observe the following precautions to prevent failure to operate, malfunctions, or undesirable effects on
product performance.
■ Installation Site
Do not install the product in locations subjected to the following conditions:
Ambient temperature outside the rating
•
Rapid temperature fluctuations (causing condensation)
•
Relative humidity outside the rating
•
Presence of corrosive or flammable gases
•
Presence of dust, salt, or iron particles
•
Direct vibration or shock
•
Direct sunlight
•
Water, oil, or chemical fumes or spray
•
Strong magnetic or electric field
•
Component Installation and Handling
■ Power Supply and Wiring
The cables must be 10 m or shorter in total length, for both the sensor and Amplifier
•
Unit. To extend the cable from the Sensor Head, an optional double-ended connector
cable (ZX-XC_A) must be used. For extension of the cable of Amplifier Units, shielded
cables of the same type must be used.
When using a commercially available switching regulator, make sure that the FG
•
(Frame Ground) terminal is grounded.
If surge currents are present in the power lines, connect surge absorbers that suit the
•
operating environment.
When two or more Amplifier Units are connected by a Calculating unit (ZX-CAL2) for
•
use, connect the linear GND of all Amplifier Units.
■ Warming Up
After turning ON the power supply, allow the product to stand for at least 30 minutes
before use. The circuits are still unstable just after the power supply is turned ON, so
measured values may fluctuate gradually.
■ Maintenance and Inspection
Always turn OFF the power supply before adjusting or connecting/disconnecting the
•
Sensor Head.
Do not use thinner, benzene, acetone or kerosene to clean the Sensor Head and
•
Amplifier Units.
Do not allow dust to enter the measurement section.
•
ZJ-SD
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User's Manual
Precautions for Correct Use
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