Measures Against Noise; Effects Of Noise; Storage; Precautions For Storage - Nagano Keiki EJ15 User Manual

Intrinsically safe pressure sensor for high pressure hydrogen application
Table of Contents

Advertisement

9. MEASURES AGAINST NOISE

■ 9.1 Effects of Noise
If intermittent changes in measurement values or output are found, or if pressure values
different from actual ones are indicated, they may be affected by noise. Generally,
sources of noise include power supply, an output cable, peripheral equipment, and
wiring. Values may be subject to effects of noise depending on the installation place or
position of the product. When you identify the source and take the measures below, you
can reduce effects of noise.
Radiation noise
• Keep the product away from the source
• Change the direction of the product toward the source to change an incidence angle
to a board
• Install an electromagnetic shield to the source or the product
• Ground the product so that the specified ground point is electrically grounded (see
Fig. 7.3, 7.4 and 7.5).
Induction noise
• Keep the product away from the wiring carrying high current
• Ground the product so that the specified ground point is electrically grounded (see
Fig. 7.3, 7.4 and 7.5).
• Keep the product away from electrically charged machines or objects
Conductive noise
• Use the stable power supply that is difficult to generate noise
• Install power supply or output measurement equipment in an environment that is
impervious to being affected by noise
• Use high-noise-resistant cables such as a shield one for connection to connect the
shield to the ground

10. STORAGE

■ 10.1 Precautions for Storage
・ Locations subject to water
・ Locations that may be adversely affected by atmospheric
pressure, temperature, humidity, ventilation, sunlight, dust,
salinity or sulfur-laden air.
・ Locations subject to inclination, vibration, shock (including
those during transportation)
・ Locations where chemicals are stored or gases are generated.
・ Locations exposed to direct sunlight or in high-temperature cars
Avoid storing this product in the following places.
Failure or damage can result.
CAUTION
31
TY-EJ15-003A Rev.2

Advertisement

Table of Contents
loading

Table of Contents