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Heat
Stress & Thermal Envirornment Monitors |
| QUESTemp°
Series Monitors are designed to provide you with maximum value.
In all QUESTemp° Thermal Environment Monitors a dry bulb sensor
measures ambient temperature; a wet bulb sensor takes into
account evaporative cooling, giving an indication of the effects
of humidity on an individual; and a globe sensor provides
an indication of the radiant heat exposure on an individual
due to either direct light or hot objects in an environment.
QUESTemp° Thermal Environment Monitors convert these measurements
to a simplified, single-number Indoor and Outdoor WBGT Index.
This index can then be used in conjunction with guidelines
developed by ACGIH, U.S. Navy, EPRI, ISO and others. Each
of these guidelines includes considerations for real-life
variables such as activity levels or clothing types worn.
Advanced models of the QUESTemp° Thermal Environment Monitors
also compute Humidex. Humidex is another form of a heat stress
index used in Canada in accordance with guidelines such as
those defined by the Occupational Health Clinics for Ontario
Workers-Hamilton (OHCOW). Using QUESTemp° Thermal Environment
Monitors in conjunction with any one of these guidelines enables
you to determine appropriate work/rest regimens or stay times
for workers in situations where heat stress is a life safety
and liability risk.
Area
heat stress monitors are very valuable for their ability to
provide simultaneous protection to groups of workers with
a single instrument. The compromise present in area heat stress
measurements is that each worker is in reality physiologically
unique. Environmental conditions and physical activity that
cause heat stress for one worker may not affect another while
conditions that do not affect one worker may affect another.
The guidelines that exist for stay times and work/rest regimens
based on measured WBGT values are generalized to represent
the expected impact of given environmental conditions and
physical activity on groups of individuals. The results of
the WBGT method can include unnecessarily shortened work times
for some workers and insufficient protection of others. This
is why experts insist that monitoring be used only in conjunction
with worker observation and monitoring for heat stress symptoms.
For these reasons, we also offer the Questemp°II and Questemp°III
. These easy-to-use personal heat stress instruments monitor
an individual’s heart rate and/or body temperature for indications
of the onset of heat stress. |
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| The
rugged, easy to use QUESTemp° 32 Thermal Environment Monitor
quickly and accurately evaluates the potential for individuals
to experience heat stress.
It combines WGBT index values with Relative Humidity measurements
to calculate Humidex and Heat Index.
For remote applications the QT°32 can be tripod mounted with
the detachable sensor tethered at a distance up to 200 ft
(60m) from the main unit. |
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| The
QUESTemp° 34 is a rugged, easy to use, datalogging Thermal
Environment Monitor.
The QUESTemp° 34 is the datalogging version of the QT32 Thermal
Environment Monitor.
Output
recorded data directly to a serial printer or download to
QuestSuite Professional software, "The System Solution" for
storage, retrieval, analysis, reporting, and charting of all
your heat stress monitoring data. |
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| The
datalogging QUESTemp° 36 is the premier monitor within the
QUESTemp° Series of Thermal Environment Monitors.
The QUESTemp° 36 further simplifies heat stress management
efforts by providing users with realtime guidance on stay
times and work/rest regimens. Guidance is based on screening
criteria for heat stress as defined in the ACGIH TLV Handbook,U.S.
Navy PHEL Charts and EPRI Action Limits.
The QUESTemp° 36 eliminates the need to carry paper charts,
pocket guides and look-up tables into the field.
An optional detachable probe for measuring air velocity extends
the applications for the QUESTemp° 36 beyond traditional heat
stress measurements. The QUESTemp° 36 can be used as an indoor
thermal comfort monitor using the air velocity probe, temperature
and RH sensor readings simultaneously.
Other applications include verification of air flow in fume
hoods or rooms normally requiring a minimum amount of air
flow to be safe for occupancy. |
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| The
QUESTemp° II personal heat stress indicator monitors an individual’s
body temperature for indications of the onset of heat stress.
It warns the user when their personal body temperature has
risen above the "safe" level and that action should be taken
to allow the body to cool.
The QUESTemp° II is a belt or pocket worn device with a thin,
flexible cable leading up to a small earmold containing the
sensor and a small speaker. An E.A.R.® foam earplug slides
over the sensor providing a comfortable vehicle for inserting
and maintaining the sensor. The speaker and earmold remain
just outside of the ear to completely avoid any possible damage
or injury to the ear canal.
Output
recorded data directly to a serial printer or download to
QuestSuite Professional software, "The System Solution" for
storage, retrieval, analysis, reporting, and charting of all
your heat stress monitoring data. QuestSuiteProfessional allows
powerful correlations to be developed between environmental
conditions, physical activity, clothing types and real physiological
impact on an individualized basis. |
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| The
QUESTemp° III is a datalogging Personal Heat Stress Monitor.
Based on extensive research funded by the Electric Power Research
institute and performed by Westinghouse Electric and Pennsylvania
State University, it monitors both body temperature and heart
rate to calculate individual body strain in response to heat
stress.
It uses a two-stage audio/visual alarm. The first stage "Warning
Alert" indicates that conditions are approaching a level where
there is a limited amount of time to work. The second stage
"Action Alert" indicates that the worker should stop work
immediately and take necessary actions.
The watertight lightweight monitor assembly can be slipped
into a shirt pocket or clipped to a belt while the elastic
sensor belt assembly is worn comfortably around the chest.
It is programmable for the appropriate age group and clothing
type of the individual being monitored.
Heart rate, temperature, and heat strain alert status are
recorded once every minute and stamped with the date and time
to correlate events and pinpoint problems.
Output
recorded data directly to a serial printer or download to
QuestSuite Professional software, "The System Solution" for
storage, retrieval, analysis, reporting, and charting of all
your heat stress monitoring data. |
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