Chino EH3000 Series, Инструкция по эксплуатации

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2. INSTALLATION
2.1. Mounting Place
Place this instrument in the following place not to affect the measuring accuracy and recording operation adversely.
(1) Industrial Environment
Select a place being separated from electric field and magnetic field generation sources and also free of mechanical vibrations and
shocks.
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Overvoltage category II (EN standard)
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Pollution degree 2 (EN standard)
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Altitude 2000 m or less
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Working place Indoors
(2) Environmental Temperature and Humidity
Avoid exposing this instrument to the direct sunlight, and avoid sealing around it to prevent temperature rise.
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It is desired to place it in where the ambient temperature is stable at about 23 °C and the humidity is stable at about 50 % RH.
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Place it in where free of being exposed to hot blast (70 °C or higher) and not exceeding the condition of ambient temperature (0 to
50 °C) for preventing failure and deformation of it.
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Place it in where being free of a heat source near its terminals and out of the wind for reducing measuring errors.
(3) Atmosphere
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Avoid using this instrument in an inflammable gas atmosphere for safety.
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Avoid using this instrument in any place where dust, smoke, vapor, and other substance exist.
(4) Mounting Angle
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Lateral tilting: 0 to 10 degrees
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Longitudinal tilting: Forward tilting: 0 degrees
Backward tilting: 0 to 30 degrees
A mounting angle other than the specification above may affect
recording performance.
30 degrees or less
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Substance example: Organic gas, Inorganic substances such as hydrogen sulfide and ammonia gas, and Low-molecular
siloxane
Mechanical relay is used for input switching of this product, and it may cause contact point failure with the above substances.
Many silicone-related materials include low-molecular siloxane; therefore, attention is necessary under the environment where
a lot of silicone-related adhesion bond, coating materials, and others are used. The low-molecular siloxane included in
adhesion bond and coating materials strips in the air for a certain period even during and after hardening.
If you are worried about impact of these substances, contact your nearest CHINO’s sales agent.
Substances which Affect Instrument
After the instrument is exposed in the atmosphere with even slight sulfur components for a long time period in the state of
power switch off, it may not be powered on even the power switch is turned on. This symptom occurs because sulfidizing film
generated on the connection surface of the power switch causes contact failure. If the power switch is turned on and off
several times, the generated sulfidizing film breaks and the instrument recovers.
However, if it is exposed in the atmosphere of sulfur components for a long time period, electronic parts other than the power
switch are affected and cause failures. Avoid using it in the atmosphere of even slight sulfur components.
Impact of Sulfurization by Sulfur Atmosphere