Excess gain, Banner engineering corp limited warranty – Banner SSM Series Corner Mirrors User Manual

Page 4

Excess Gain

Excess Gain = Maximum Range² ÷ Separation Distance²

Range Reduction Using SSM-S Series Corner Mirrors

on page 3, excess gain can be calculated for any distance

by using the inverse square law. For example, the excess gain for a 30 ft range MINI-SCREEN system at a 10 ft separation, using two
corner mirrors, is calculated as follows:

E.G. ÷ 1x = 14.8² ÷ 10² = 2.19

E.G. = (1x)(2.19) = 2.19x

For the same situation at a 10' separation, using MACHINE-GUARD sensors:

E.G. ÷ 3x = 23² ÷ 10² = 5.29

E.G. = (3x)(5.29) = 15.87x

NOTE: MACHINE-GUARD maximum sensor range is the separation between emitter and receiver where 3x
excess gain remains. The calculated excess gain should be multiplied by 3 to determine the true system
excess gain.

Excess Gain Value Guidelines

Maximum Excess Gain Required

Operation Environment

1.5x

Clean air: no dirt buildup on lenses or mirrors

Slightly dirty: slight buildup of dust, dirt, oil, moisture, etc. on lenses or mirrors. Lenses
and mirrors cleaned on a regular schedule.

10x

Moderately dirty: obvious contamination on lenses or mirrors (but not obscured). Len-
ses and mirrors cleaned occasionally or when necessary.

50x

Very dirty: heavy contamination on lenses and mirrors. Heavy fog, mist, dust, smoke,
or oil film. Minimal cleaning of lenses and mirrors.

Banner Engineering Corp Limited Warranty

Banner Engineering Corp. warrants its products to be free from defects in material and workmanship for one year following the date of
shipment. Banner Engineering Corp. will repair or replace, free of charge, any product of its manufacture which, at the time it is returned
to the factory, is found to have been defective during the warranty period. This warranty does not cover damage or liability for misuse,
abuse, or the improper application or installation of the Banner product.
THIS LIMITED WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED (IN-
CLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE), AND
WHETHER ARISING UNDER COURSE OF PERFORMANCE, COURSE OF DEALING OR TRADE USAGE.
This Warranty is exclusive and limited to repair or, at the discretion of Banner Engineering Corp., replacement. IN NO EVENT SHALL
BANNER ENGINEERING CORP. BE LIABLE TO BUYER OR ANY OTHER PERSON OR ENTITY FOR ANY EXTRA COSTS, EXPEN-
SES, LOSSES, LOSS OF PROFITS, OR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM ANY
PRODUCT DEFECT OR FROM THE USE OR INABILITY TO USE THE PRODUCT, WHETHER ARISING IN CONTRACT OR WAR-
RANTY, STATUTE, TORT, STRICT LIABILITY, NEGLIGENCE, OR OTHERWISE.
Banner Engineering Corp. reserves the right to change, modify or improve the design of the product without assuming any obligations or
liabilities relating to any product previously manufactured by Banner Engineering Corp.

SSM-S Stainless Steel Corner Mirrors