Hach Flo-Dar, Руководство пользователя

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Installation
3.2.4 Measure the pipe diameter
The correct diameter of the pipe or channel is necessary for accurate flow calculations.
1. Measure the inside pipe diameter (I.D.) at three locations ( Figure 17 ). Be sure that
the measurements are accurate.
2. Calculate the average of the three measurements. Record this number for use during
the software setup for the site.
3.3 Electrical installation
3.3.1 Wiring safety information
When making any wiring connections to the instrument, the following warnings and notes
must be adhered to, as well as any warnings and notes found throughout the individual
installation sections. For more safety information refer to
section 2.1 on page 5 .
CAUTION
Always disconnect power to the instrument when making any electrical
connections.
Attention
Débranchez toujours l'alimentation de l'appareil avant toute connexion électrique.
3.3.1.1 Electrostatic Discharge (ESD) considerations
Important Note: To minimize hazards and ESD risks, maintenance procedures not
requiring power to the instrument should be performed with power removed.
Delicate internal electronic components can be damaged by static electricity, resulting in
degraded instrument performance or eventual failure.
The manufacturer recommends taking the following steps to prevent ESD damage to
your instrument:
• Before touching any instrument electronic components (such as printed circuit cards
and the components on them) discharge static electricity from your body. This can be
Figure 17 Pipe diameter measurement