Wintriss SmartPAC 2, User Manual

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SmartPAC 2 with WPC 2000 Integration User Manual 1128600
Extracts from OSHA and ANSI A-13
8.3.1.5 The presence-sensing device shall
incorporate visual means to indicate that the
device is detecting an individual within the
effective sensing field of the device.
E8.3.1.5
Indicators, (usually red and green),
displays or meters should be provided to
indicate the status of the presence-sensing
device. The visual means may be integral to the
presence-sensing device or part of the interface
or machine control system. Due to the
prevalence of color blindness (10% in males for
red/green), methods such as unambiguous
positioning, patterning, labeling or flashing of the
indicators may be effective in providing the
indication required.
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 electro-optical and area scanner
presence-sensing devices 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.
E8.3.1.7
When the electro-optical and area
scanner presence-sensing devices are exposed
to signals from other electro-optical presence-
sensing 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.
8.3.1.8 Components, subassemblies or modules
of electro-optical, RF, and area scanning
presence-sensing devices shall conform to the
requirements of 6.1, or shall be designed and
constructed to meet the safety performance
level (risk reduction) as determined by a risk
assessment.
E8.3.1.8
See also, clause 5 and ANSI B11.0
(B11.TR3).
8.3.1.9 The area scanning presence-sensing
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:
• maximum safeguarding range;
• minimum object sensitivity within the stated
safeguarding range;
• maximum field of view in degrees;
• tolerance in the range measurement; and
• detection capabilities with respect to the
reflectivity of an object versus the distance to
the object.
E8.3.1.9
These presence-sensing 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 B11.19-2010 8.3
Standards Requirements Explanatory Information