YOKOGAWA AR PY Series User manual

User’s
Manual
Yokogawa Electric Corporation
IM 77M02Y02-01E
1st Edition: Jan. 2004 (MC)
3rd Edition: Aug. 2005 (KP)
Thank you for purchasing this waterproof box for outdoor
installation. To ensure safety, be sure to thoroughly read
this User’s Manual before using the box, then keep it
handy for future reference.
■ Contents of the Package
Check that the package contains the following items:
䊉AR-PY or AR-WY main unit: 1
䊉User’s Manual (IM 77M02Y02-01E): 1
䊉M4 screws for mounting arresters: 8
䊉Pipe-mounting bracket: 1 – for AR-PY only
䊉U-shaped bracket assembly: 1
(one U-shaped bracket and two M8 nuts) for AR-PY only
䊉Wall-mounting bracket: 1 – for AR-WY only
䊉M5 screws for fixing the mounting bracket: 4
䊉Hand tool for drilling wiring holes: 1
䊉Large wiring cable glands: 4
䊉Small grounding cable gland: 1
1. PRECAUTIONS FOR SAFE USE OF THE PRODUCT
The following safety symbol is indicated on the product to
ensure safe use.
I f this symbol is indicated on the product, the operator
should refer to the explanation given in the user’s
manual in order to avoid personnel injury or death to
either themselves or other personnel, and/or damage to
the instrument. The manual describes the special care
the operator should exercise to avoid shock or other
dangers that may result in injury or loss of life.
The following symbols are used only in this manual.
IMPORTANT
Indicates that operating the hardware or software in a
particular manner may damage it or result in a system
failure.
NOTE
Draws attention to information that is essential for
understanding the operation and/or features of the
product.
2. MODELS AND SUFFIX CODES
Å@
AR-䊐Y/AS
Model
Option code:
/AS : Built-in arrester
(
must be specified in a separate purchase order )
Blank: No built-in arrester
Mounting method
PY : Pipe mounting
WY: Wall mounting
3. DRILLING HOLES FOR CABLE ROUTING
Use the supplied hand tool to drill as many wiring holes as the
number of cables to be routed, as shown in the figure below.
Normally, drill Hole F for the grounding wire,
Holes B and C for the protected side, and Holes D and E for the
surge side.
Wiring for surge sideWiring for protected side
Not used
Not used
Wiring for grounding wire
4. MOUNTING METHOD
NOTE
After cable routing, carefully perform mounting so that
moisture will not enter inside the arrester. Also, be careful not
to fasten the cap on the cable gland too tightly as doing so
could damage the cable.
(1) Mount the supplied cable glands on the wiring holes as
shown in the figure below.
Mount four large wiring cable glands on Holes B, C, D, and
E and a small grounding cable gland on Hole F.
(2) Route the cables into the arrester through the cable
glands. The applicable diameters (outer diameters) of the
cables are as follows:
Cable for protected and surge sides: ø9 – 11 mm
Cable for grounding wire: ø5.5 – 7 mm
Cable gland
(cap)
[Outside]
[Inside]
Outdoor-installed waterproof box
Nut
Packing rubber
Cable gland
(main unit)
Models AR-PY and AR-WY
Outdoor-installed Waterproof
Boxes
(for Two Arresters)
Network Solutions Business Division
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: [phone] Facsimile: [phone]

2
IM 77M02Y02-01E 3rd Edition 2005.08.31-00
(3) Perform mounting using the supplied M4 screws as shown
in the figures below. For wiring, refer to the user’s manual
of the arrester.
When /AS is specified for the option code, arresters are
mounted as shown in the figures below.
ARRESTER
ARRESTER
ARRESTER
ARRESTER
Arresters
(must be specified in a
separate purchase order)
Arresters
(must be specified in a
separate purchase order)
Two supplied M4 screws
each for two units Four supplied M4 screws each for two units
4.1 AR-PY for Pipe Mounting
(1) Anchor a supplied pipe-mounting bracket onto the box with
the supplied M5 screws.
Supplied M5 screws in
four places
Supplied pipe-mounting
bracket
䊉Fixing the Mounting Bracket
(2) Mount the box onto the pipe with a supplied U-shaped
bracket.
50 (244)
203
(294)
15 70 (209)
(294)
203
50 (244)
50 (244)
32
32
120
120
90
10
275 10 90
70
275
(142)
(77)217
(77)
217
(127)
(142)
(127)
(42)
(42)
Supplied M8 nuts
in two places
Supplied U-shaped
bracket
Supplied M8 nuts
in two places
Supplied U-shaped
bracket
䊉Vertical Mounting
䊉Horizontal Mounting
4.2 AR-WY for Wall Mounting
(1) Anchor a supplied wall-mounting bracket onto the box with
the supplied M5 screws.
Supplied wall-mounting bracket
Supplied M5 screws in
four places
䊉Fixing the Mounting Bracket
(2) Mount the box onto the wall with screws on the lower
holes of the wall-mounting bracket.
275
100
70
185
(115)
159010
(262) (220)2715
203
M8 screws
(not supplied)
in three places
䊉Wall Mounting