Azbil ALTJ 9000 Series, Руководство пользователя, Страница: 20 / 68

3-2
Chapter 3 Installation
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Junction box
y
Install the junction box in a location with an ambient temperature ranging from -5 to +55 °C.
y
If the junction box is installed in a poor atmosphere with high chlorine gas concen-
tration or high humidity, a contact failure or wire break may occur due to corrosion.
Therefore, please avoid such environments.
y
There is a rear cap on the rear panel of the junction box. The reference pressure is taken
from the hole in the rear cap through the tube of the hollow cable. Therefore, if water
enters the hole or if the hole is blocked, an output error or malfunction man occur.
Take appropriate measures so that water does not enter the hole and so that the hole is
not blocked.
Fig. 3-2. Blocking of the hole in the rear cap
y
For details about the installation dimensions, refer to the external dimensions given on
the specification sheet or delivery specification.
y
Installation Procedure
y
2 inch pipe mounting model
Attach the junction box to a vertical or horizontal 2 inch (50 A) pipe using the mounting
bracket and U bolt. There are two bolt holes in the rear panel of the junction box. Attach the
bracket using these bolt holes. Secure the foundation of the pipe firmly so that it does not shake.
y
Wall-mounted model
Attach the junction box to a wall using the wall mounting bracket. There are two bolt
holes in the rear panel of the junction box. Mount the bracket using these bolt holes.
Bolts to attach the junction box to the wall are not supplied with the product. Please
obtain appropriate bolts beforehand.
2 inch pipe-mounted model Wall-mounted model
Fig. 3-3. Installation of junction box
Rear cap
Do not block this opening.
Bracket 2 inch pipe Bracket
U bolt
Bolts for securing bracket to wall
(not included with product)