Wintriss wpc 2000, User Manual

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WPC 2000 User Manual 1128500
Extracts from OSHA and ANSI A-13
8.3.1.6 The presence-sensing device shall have
a maximum response time that shall not be
affected by object sensitivity or environmental
changes.
The safeguarding supplier shall provide the
maximum response time of the presence-
sensing device.
8.3.1.7 The RF (radio frequency) presence-
sensing device shall provide means to adjust
the sensitivity of the field. The field, once
adjusted, shall not decrease in sensitivity below
this established level.
8.3.1.8 The electro-optical device shall not be
affected by ambient light conditions or by
changes in the device light source
characteristics, such that an increase in
response time or object sensitivity occurs. E8.3.1.8 When the electro-optical device is
exposed to signals from other electro-optical
devices or to changes in ambient light
commonly associated with windows, light
fixtures, skylights, bay doors or work area lights,
the response time or object sensitivity should
not be adversely affected.
8.3.1.9 Components, subassemblies or modules
of electro-optical, RF, and area scanning
presence-sensing safeguarding devices shall be
designed and constructed to meet the
requirements of 6.1.
8.3.1.10 The area scanning device shall provide
a means or operating mode to verify the size,
shape, and detection capabilities of the
detection area or zone.
Information shall be provided by the area
scanning device supplier to identify the:
a) maximum safeguarding range;
b) minimum object sensitivity within the
stated safeguarding range;
c) maximum field of view in degrees;
d) tolerance in the range measurement; and
e) detection capabilities with respect to the
reflectivity of an object versus the distance
to the object.
E8.3.1.10 These devices typically operate on
the principle of “diffuse reflectance," which is a
principle of transmitting beam(s) of light to form
a detection area or zone. When an object enters
the detection area, it reflects the transmitted
light back to the device, which then evaluates
the object's position. The amount of reflected
light (degree of reflectance in percent) that can
be reliably detected typically ranges from 1.8%
to over 90% and can be represented graphically
by reflectivity versus distance. For more
information, see IEC 61496, parts 1 and 3.
Extracts from ANSI B11.19-2003 8.3
Standards Requirements Explanatory Information