12
Preface Precautions for Correct Use
ZX-E
Operation Manual
PREFACE
Precautions for Correct Use
Always observe the following precautions to prevent operation failures, malfunctions, and
adverse effects on performance and equipment.
Smart Sensor Installation
■ Environment
Do not install the Smart Sensor in the following locations:
• Locations where the ambient temperature exceeds the rated temperature range
• Locations subject to rapid changes in temperature (causing condensation)
• Locations where the relative humidity exceeds the range of 35% to 85%
• Locations subject to corrosive or flammable gases
• Locations where dust, salt, or metallic powder accumulate on the Sensor
• Locations subject to direct vibration or impact
• Locations subject to direct sunlight
• Locations subject to exposure to water, oil, chemicals, etc.
• Locations subject to strong electromagnetic or electrical fields
• Locations subject to water vapor
Installation and Handling of Components
■ Power Supply and Wiring
• Do not extend the Sensor Head cable by more than 8 m. Use a ZX-XC@A Extension
Cable (order separately) to extend the cable from the Sensor.
• Use a shielded cable to extend the Amplifier cable. The shielded cable must have the
same specifications as that of the Amplifier cable.
• When using a commercially available switching regulator, ground the FG (frame
ground) terminal.
• If the power supply line is subject to surges, connect a surge absorber that meets the
conditions of the application environment.
• When connecting multiple Amplifier Units, connect the linear grounds of all the Ampli-
fier Units.
■ Warm-up
After turning ON the power, allow the Smart Sensor to warm up for 30 minutes mini-
mum prior to use. The circuitry is not stable immediately after turning the power ON,
and the values gradually change until the Sensor is completely warmed up.
■ Maintenance and Inspection
• Always turn OFF the power supply before adjusting or removing the Sensor Head.
• Do not use thinners, benzine, acetone, or kerosene to clean the Sensor Head or
Amplifier Unit.
Z166-E1-02A.book Page 12 Friday, June 3, 2005 4:18 PM
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