Kistler-Morse KM Load Stand II - Manual (Page 17)

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97-1100-01 Rev. H
v. ELECTrICaL INSTaLLaTION
WarninG: verY hiGh voLtaGe iS PreSent. reMove PoWer FroM the unit BeFore
inStaLLinG, reMovinG, or MaKinG aDJuStMentS
GeneraL SaFetY
When using electrical equipment, you should always follow basic safety precautions, including the following:
• The installation and wiring of this product must comply with all national, federal, state, municipal, and
local codes that apply.
• Properly ground the enclosure to an adequate earth ground.
• Do not modify any factory wiring. Connections should only be made to the terminals described in this section.
• All connections to the unit must use conductors with an insulation rating of 300 V minimum, rated for
212º F (105º C), a minimum flammability rating of VW-1, and be of appropriate gauge for the voltage and
current required (see specifications).
• Do not allow moisture to enter the electronics enclosure. Conduit should slope downward from the unit
housing. Install drip loops and seal conduit with silicone rubber product.
DiSconnect reQuireMentS For PerManentLY inStaLLeD eQuiPMent
A dedicated disconnecting device (circuit breaker) must be provided for the proper installation of the unit. If
independent circuits are used for power input and main relay outputs, individual disconnects are required.
Disconnects must meet the following requirements:
• Located in close proximity to the device
• Easily accessible to the operator
• Appropriately marked as the disconnect for the device and associated circuit
• Sized appropriately to the requirements of the protected circuit (See specifications)
inStaLLation
There are two versions of the junction box enclosure. Both versions have four small holes, which were used for
factory-wiring the sensors to the junction box. In addition, the junction box has one or two large holes for wiring
the junction box to other junction boxes and the signal processor:
• One large hole (conduit installation); the large hole accommodates a 3/4” conduit fitting.
• Two large holes (non-conduit installation); the two large holes are equipped with PG13.5 cable fittings.
K-M requires the use of cable trays for non-conduit installations.
GuiDeLineS
• The procedure below assumes the conduit/cable tray has been installed.
• Seal all conduit fittings against water entry. Install drain holes at conduit/cable tray lowest elevation(s) to
allow condensation to drain.