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sensors and accessories
temperature Probes (continued)
thermocouple
the thermocouple uses type-K thermocouple wire to
measure temperatures between -200˚c and 1400˚c.
• Measure liquid nitrogen temperatures at -196˚c and
fl ame temperatures up to 1400˚C.
• internal ice-point compensation means you do not need
to place a reference wire in an ice-water bath.
• individually calibrated.
range:
-200 to 1400°c
Temperature cycles of an oven
using a Thermocouple
INNOVATIVE USES
• Compare the temperature at
different parts of a fl ame
• Compare the temperature of
different fl ames
• Temperature cycles of an oven
$69
tyPical accuracy:
0 to 900°c: ±2°c
-200 to 0°c: ±5°c
900 to 1400°c: ±15°c
great Ways to use tHis sensor!
orDer coDe
tca-bta
Taking temperature of
an open flame
• Monitor temperature of liquid
nitrogen or dry ice
• Determine the melting point of
copper or other solids
range: 0 to 200 ntU
resolution:
12-bit (labQuest, labQuest Mini, labPro, go!link): 0.25 ntU
10-bit (cBl, cBl 2, nXt adapter): 1.0 ntU
turbidity
sensor
Use the turbidity Sensor to measure the turbidity of freshwater
or seawater samples in ntU (the standard unit used
by most water collection agencies and organizations).
• Small, sleek design and simple setup make it easy to use
at the collection site or in the classroom.
• Monitor precipitate formation or algae and yeast
populations in chemistry and biology classes.
• includes high-quality hach Stablcal 100 ntU standard
for quick calibration and a high-grade glass cuvette for
your water sample. a set of six additional glass turbidity
Bottles are available (orDer coDe trB-Bot, $27).
Measuring turbidity of a stream
WATER QUALITY
• Monitor water clarity
great Ways to use tHis sensor!
ENVIRONMENTAL SCIENCE
• Long-term water monitoring
• Pollution study
$112
EARTH SCIENCE
• Water quality: turbidity
• Water treatment
138 Vernier Software & technology- |- |- call toll free 888-vernier (888-837-6437)- |- |- www.vernier.com
orDer coDe
trb-bta
uva sensor
great for use with UV lamps.
range: 0 to 18,000 mw/m 2
wavelength sensitivity region
approximately 320 to 375 nm
UV peak sensitivity: one volt
per 3940 mw/m 2 at 340 nm
resolution:
12-bit (labQuest, labQuest
Mini, labPro, go!link,
SensorDaQ): 5 mw/m 2
10-bit (cBl, cBl 2, nXt
adapter): 20 mw/m
Spectral response of the UV Sensors
uva and uvb
sensors
we have two different sensors for measuring the
intensity of ultraviolet radiation. one responds primarily
to UVa radiation (320 to 375 nm), and another responds
primarily to UVB radiation (290 to 320 nm). UVB radiation
is commonly associated with sunburns, cataracts, and skin
cancer. UVa radiation, while responsible for suntans, is
also a cause of premature aging of the skin and some
types of skin cancer. which sensor you use will depend
upon the particular experiment you want to perform.
EARTH SCIENCE
• Compare absorption in glasses
• Comparing sunscreens
• UV light and clothing
$106
$107
uvb sensor
great for use in the sun.
recommended for our lab books.
range: 0 to 900 mw/m2 wavelength sensitivity region
approximately 290 to 320 nm
UV peak sensitivity: one volt per
204 mw/m2 at 315 nm
resolution:
12-bit (labQuest, labQuest Mini,
labPro, go!link, SensorDaQ):
0.25 mw/m 2
10-bit (cBl, cBl 2, nXt adapter):
1 mw/m
great Ways to use tHese sensors!
orDer coDe
uva-bta
orDer coDe
uvb-bta
ENVIRONMENTAL SCIENCE
• Collect local weather data
• UV investigations