Yokogawa PR300 Power and Energy Meter - Manual (Page 9)

1-2 IM 77C01E01-01E
1.1 Installation with the ANSI 4-inch Round Form or JIS 110-square Instrument Size
●
Do not install the PR300 in the following types of
environments, as they may cause the PR300 to
malfunction or fail. Avoid sites:
exposed to significant shock or vibration; where corrosive
gases are present; where large amounts of dust are present;
exposed to water; exposed to direct sunlight; outside; at
altitudes above 2000 m.
●
The PR300 mounting position is for vertical panels only.
WARNING NOTE
●
Install the PR300 in the secondary side
of the existing breaker.
●
Provide spacing of 50 mm or more
between the products.
Mounting Method
Panel-mounting bracket
(standard accessory)
Bezel
(standard accessory)
PR300
Panel-mounting bolt
(standard accessory: 2 bolts)
Panel-mounting bolt
Bracket-fixing screw
(standard accessory: 2 screws)
Flat washer, spring washer, and nut
(standard accessory: 2 of each)
The diagram on the right shows the front of the
bracket (the side into which the panel-mounting
bolt is inserted). Rotating the bracket 90
°
makes the bracket compatible with either ANSI
or JIS panel cutouts. Set the bracket to either
the ANSI or JIS mark according to which type
of panel you are installing, as shown in the
diagram on the right.
Insert two panel-mounting bolts
into the front of the panel-
mounting bracket as shown in
the diagram on the left.
2
2
1
Fix the panel-mounting bracket
securely to the back of the PR300
with two bracket-fixing screws as
shown in the diagram on the left.
(recommended tightening
torque: 0.4 N•m) 3
Attach the bezel from the front of
the PR300. 4
Insert the PR300 from its rear
through the mounting cutout in
the panel as shown in the
diagram. 5
Secure the PR300’s panel-
mounting bolts by tightening
them with the washers and nuts.
(recommended tightening
torque: 2.0 N•m) 6
6
4
3
5
Front of the bracket
ANSI
Front of the bracket
JIS
Rotate 90 °
Set the direction of the panel-mounting bracket.