3
General
(All SMUs) (See Figure 4)
1) Dust-Ignition-Proof Precautions -
When installing a haz-
ardous location SMU, observe all regulations applicable to
local codes. Do not open the enclosure when an explosive
atmosphere is present. When reattaching covers, ensure that
gaskets are clean and that screws are fully engaged. Tighten
in a criss-cross pattern.
2) Factory Wiring/Compartment
- The SMU motor, encoder,
and swing arm sensor leads are prewired to the PCB module.
DO NOT alter or make additional external connection to these
terminals. Doing so will likely cause damage to the SMU. Do
not remove cover protecting the optical sensing compartment.
3) Permanently Connected Equipment
- Disconnecting
devices shall be included in the system installation. In instal-
lations where multiple circuits are used (i.e. independent cir-
cuits for power input, cycle, count, sound and lockout), indi-
vidual disconnects are required. The disconnects shall be
within close proximity of the equipment, accessible to
operators, and marked appropriately. Assure the disconnect
ratings are appropriately sized for the circuit protected
(See Specifications).
4) Circuit Separation
- Two cable entry locations are provided
to aid in maintaining separation of "hazardous live" and limit-
ed circuits. It is required that all wiring have an insulation
rating of 300V minimum, and a temperature rating of 80˚ C
(176˚ F) minimum.
5) Protective Earthing
- Each SMU is provided with a "pro-
tective conductor terminal" which shall be terminated to the
local earth ground potential. Select a wire size that can carry
in excess of the sum of all circuit's maximum amperage.
Figure 4
TR
TTR
ANSFOR
TRA
TRAN
TRANS
TRANSF
TRANSFO
TRANSFORMER
TRANSFORM
TRANSFORME
TRANSFORMER
(230VAC MO
TRANSFORMER
(
TRANSFORMER
(2
TRANSFORMER
(23
TRANSFORMER
(230
TRANSFORMER
(230V
TRANSFORMER
(230VA
TRANSFORMER
(230VAC
TRANSFORMER
(230VAC
TRANSFORMER
(230VAC M
TRANSFORMER
(230VAC MODELS O
TRANSFORMER
(230VAC MOD
TRANSFORMER
(230VAC MODE
TRANSFORMER
(230VAC MODEL
TRANSFORMER
(230VAC MODELS
TRANSFORMER
(230VAC MODELS
TRANSFORMER
(230VAC MODELS ON
TRANSFORMER
(230VAC MODELS ONL
TRANSFORMER
(230VAC MODELS ONLY)
TRANSFORMER
(230VAC MODELS ONLY
TRANSFORMER
(230VAC MODELS ONLY)
PRO
P
PR
PROT
PROTE
PROTECT
PROTEC
PROTECTIVE
PROTECTI
PROTECTIV
PROTECTIVE
C
PROTECTIVE
COND
PROTECTIVE
CO
PROTECTIVE
CON
PROTECTIVE
CONDUC
PROTECTIVE
CONDU
PROTECTIVE
CONDUCTOR
PROTECTIVE
CONDUCT
PROTECTIVE
CONDUCTO
PROTECTIVE
CONDUCTOR
TER
PROTECTIVE
CONDUCTOR
T
PROTECTIVE
CONDUCTOR
TE
PROTECTIVE
CONDUCTOR
TERM
PROTECTIVE
CONDUCTOR
TERMI
PROTECTIVE
CONDUCTOR
TERMIN
PROTECTIVE
CONDUCTOR
TERMINAL
PROTECTIVE
CONDUCTOR
TERMINA
PROTECTIVE
CONDUCTOR
TERMINAL
OP
O
OPTI
OPT
OPTIC
OPTICA
OPTICAL
OPTICAL
CO
OPTICAL
C
OPTICAL
COMPART
OPTICAL
COM
OPTICAL
COMP
OPTICAL
COMPA
OPTICAL
COMPAR
OPTICAL
COMPARTM
OPTICAL
COMPARTMEN
OPTICAL
COMPARTME
OPTICAL
COMPARTMENT
OPTICAL
COMPARTMENT
DO
OPTICAL
COMPARTMENT
D
OPTICAL
COMPARTMENT
DO N
OPTICAL
COMPARTMENT
DO
OPTICAL
COMPARTMENT
DO NO
OPTICAL
COMPARTMENT
DO NOT
OPTICAL
COMPARTMENT
DO NOT REMO
OPTICAL
COMPARTMENT
DO NOT
OPTICAL
COMPARTMENT
DO NOT R
OPTICAL
COMPARTMENT
DO NOT RE
OPTICAL
COMPARTMENT
DO NOT REM
OPTICAL
COMPARTMENT
DO NOT REMOVE
OPTICAL
COMPARTMENT
DO NOT REMOV
OPTICAL
COMPARTMENT
DO NOT REMOVE
CO
OPTICAL
COMPARTMENT
DO NOT REMOVE
C
OPTICAL
COMPARTMENT
DO NOT REMOVE
COVER
OPTICAL
COMPARTMENT
DO NOT REMOVE
COV
OPTICAL
COMPARTMENT
DO NOT REMOVE
COVE
OPTICAL
COMPARTMENT
DO NOT REMOVE
COVER
CABLE
C
CA
CAB
CABL
CABLE
ENTRIES
CABLE
E
CABLE
EN
CABLE
ENT
CABLE
ENTR
CABLE
ENTRI
CABLE
ENTRIE
CABLE
ENTRIES
ELECTRICAL INSTALLATION
EEL
ELE
ELEC
ELECT
ELECTR
ELECTRI
ELECTRIC
ELECTRICA
ELECTRICAL
ELECTRICAL
ELECTRICAL I
ELECTRICAL IN
ELECTRICAL INS
ELECTRICAL INST
ELECTRICAL INSTA
ELECTRICAL INSTAL
ELECTRICAL INSTALL
ELECTRICAL INSTALLA
ELECTRICAL INSTALLAT
ELECTRICAL INSTALLATI
ELECTRICAL INSTALLATIO
ELECTRICAL INSTALLATION
FACT
ELECTRICAL INSTALLATION
F
ELECTRICAL INSTALLATION
FA
ELECTRICAL INSTALLATION
FAC
ELECTRICAL INSTALLATION
FACTO
ELECTRICAL INSTALLATION
FACTORY WIRIN
ELECTRICAL INSTALLATION
FACTOR
ELECTRICAL INSTALLATION
FACTORY
ELECTRICAL INSTALLATION
FACTORY
ELECTRICAL INSTALLATION
FACTORY W
ELECTRICAL INSTALLATION
FACTORY WI
ELECTRICAL INSTALLATION
FACTORY WIR
ELECTRICAL INSTALLATION
FACTORY WIRI
ELECTRICAL INSTALLATION
FACTORY WIRING
ELECTRICAL INSTALLATION
FACTORY WIRING
DO
ELECTRICAL INSTALLATION
FACTORY WIRING
D
ELECTRICAL INSTALLATION
FACTORY WIRING
DO N
ELECTRICAL INSTALLATION
FACTORY WIRING
DO
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NO
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT ALT
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT A
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT AL
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT ALTE
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT ALTER!
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT ALTER
ELECTRICAL INSTALLATION
FACTORY WIRING
DO NOT ALTER!
MECHANICAL INSTALL ATION
SMU Mounting
(See Figure 3)
1) Location
- Select a mounting location in accordance with the
Pre-Installation Considerations.
2) Preparation
- If using Monitor's K-style flange (flat, 5 degree
or 10 degree pitch), cut a 5-1/2 inch (133 mm) diameter cen-
ter hole and drill six 11/32 inch (9 mm) diameter mounting
holes (for 5/16" bolts) on a 7 inch (178 mm) bolt circle.
3) Mounting
- Install gasket, place plumb bob in center hole and
secure flange with 5/16" bolts.
4) Other flanges
- If mounting of the SMU is done via an ANSI
or similar flange, ensure that the center bore on the flange is
sized to mate with the 2" NPT standpipe.
5) Non-standard plumb bobs
- Plumb bobs greater than 5 1/2
inch (133 mm) in diameter must be attached to the SMU after
mounting. A standard plumb bob is provided with each SMU.
To change the plumb bob, first install the SMU which will
ensure that the cable will not become tangled during the plumb
bob exchange. Use the "motor control switches" to lower the
standard plumb bob in the vessel (See Setup section for
details). Then pull the standard plumb bob out through an
access hatch/vent. All bobs are held on to the cable by a split-
ring fastener. Remove standard plumb bob from split-ring and
reattach appropriate plumb bob. Gently release plumb bob
into vessel, then press the "reset" switch on the SMU logic
circuit board to pull plumb bob back to start position.
6) Cover attachment
- The side covers are retained by 4
socket head cap screws. These 5/16 -18 screws can be
removed with a 1/4" Allen wrench. The cover with a lens is
for the electrical side of the unit.
Note:
A hazardous location
SMU
IS NOT
available with a lens-equipped cover.
ATEX and IECEx Supplemental Instructions:
Do not open the enclosure when an explosive atmosphere is present.
Whenever the covers are removed for servicing, if ANY PORTION of the
cover gasket adheres to the housing face, a new cover gasket must be
reinstalled prior to replacing the covers. The gasket must be installed such
that it is bottomed out in the groove of the cover. See Bulletin 344K
(Mechanical Installation) for further instructions.
Figure 3
SMU MOUNTING &
PLUMB BOB ATTACHMENT
[
XXmm
]
XX"
UNITS UNLESS SPECIFIED
A
.34 [9.0] HOLES
CONDUIT ENTRIES
(2) 3/4" NPT
S.H.C.S., 5/16
MECHANICAL SIDE
WIPERS
(4) SCREW,
(FOR 5/16" BOLTS)
2" NPT
CONNECTION
ON 7.00 [178.0] B.C.
ATTACHMENT
SPLIT RING FOR
PLUMB BOB
(6)
(4) SCREW,
S.H.C.S., 5/16
ELECTRICAL SIDE
ELECTRICAL INSTALL ATION
