Liquid Controls LectroCount LCR 600, Инсталляционные компоненты

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Installation
1. Conduit Entrances
The LCR 600 housing has 7 conduit entrances, five ½" NPT female threads, and two ¾" NPT. Use only
½" or ¾" NPT male threaded fittings on the conduit entrances. Pressed-in Caplugs or straight (rather
than tapered) threads are inadequate for sealing these entrances. Acceptable fittings includes metal or
plastic conduit, pipe plugs, or cable glands.
Threads should be treated with PTFE-based “pipe dope”, or a minimum of two revolutions of PTFE tape
prior to installation. Engage the threads with a minimum of four full turns. When using cable glands,
ensure that the gland is sized properly for the outside diameter of the cable and the elastometric seal
around the cable sheath is compressed onto the cable. Use only one cable per cable gland, unless the
gland accommodates for multiple cables. When using conduit or Liquid-Tite, ensure that the opposite end
is connected to an environmentally sealed device. If the conduit is not sealed at the other device, fill the
interior of the conduit at the LCR 600 with a silicone rubber sealant–such as RTV–to prevent moisture
from running down the conduit into the enclosure.
2. Cover Seals
To seal the LCR 600 cover properly, ensure that the O-ring surrounding the cover is fit snug inside the
groove, and tighten the cover screw securely.
3. Shaft Seals
Units with internal pulsers have an O-ring around the pulse encoder drive shaft that extends through the
bottom of the LCR housing. If a drive shaft adapter was attached at installation, ensure the O-ring around
the shaft is securely seated in the counter bore of the casting, covered with the flat washer provided, and
held in place with the cotter pin provided. The control switch on the front of the LCR 600 is also sealed
with an O-ring and held in place by a bushing–secured with three socket head cap screws. When
replacing a control switch in the field, ensure the O-ring is in place on the switch shaft before reinstalling
the switch bushing.
Any water or moisture damage to the LCR 600 as result of improper sealing will not be covered under the
product warranty. Sealing the LCR 600 is the responsibility of the installer.
Weights & Measures Seals
To detect possible intrusions into Weights & Measures approved calibrations on a LectroCount LCR 600,
fillister holes have been drilled into the switchplate screw and the latch. To seal according to Weights &
Measures standards, a wire is threaded through the fillister holes and closed with a lead seal.