IOM J500.32
Jerguson
®
LumaStar
™
2021.05
14
16633 Fol
tz Parkway ● Strongsville, OH 44149 USA ● Telephone: +1 (440) 572-1500 ● Fax: +1 (440) 238-8828
www.clark-
reliance.com ● [email protected]
Selecting Wire & Barrier
Selecting a wire with a lower capacitance (F) will yield longer distances. Use the following equations and diode
parameters below to determine the distance of wire between the LED illuminator and zener diode barrier. Pick the
shortest distance from the two following equations:
IMPORTANT:
FARAD and HENRY units must be consistent throughout the equations. E.g.: all (uF),
not a mixture of (uF) and (F).
Cable Max Distance 1 = Total Allowable Capacitance (F) / [2 x Wire Capacitance (F)]
Cord Max Distance 2 = Total Allowable Inductance (H) / [2 x Wire Inductance (H)]
Diode Values for approved zener diode barriers:
Part Number
Manufacture
Manufacture Part
Number
Allowable
Capacitance (µF)
Diode Inductance
(mH)
V22098-1
R. STAHL
9001/01-280-110-101
.083
1.2
V22098-2
MTL
7728P+
.083
1.82
V22098-3
P FUCHS
Z728.H
.083
1.82
V22098-4
ALLEN BRADLEY
®
937ZH-DPBN-1
.083
1.82
V22098-5
TURCK
MZB28P
.083
2.5
Routine Inspection
Keep window on the front of the light clean using a clean damp cloth. Avoid using chemical cleaners that may
damage the silicone seals. If cleaner is required, do not spray directly onto the light. Apply a small amount to the
rag and carefully wipe the glass only. Never use harsh abrasives, wire brushes, metal scrapers, or any material
that could scratch the window. The window may be cleaned while the unit is in operation.
