Eco Sensors
Ozone Analyzer, Model UV-100
1
Division of KWJ Engineering Inc.
User Manual, Rev. 2.0
[email protected] or (800) 472-6626
USER MANUAL
OZONE ANALYZER
Model UV-100
Overview
The model UV-100 is a UV absorption analyzer designed specifically for ozone. It uses a mercury lamp
filtered for absorption at 254 nm. The Eco Sensors design is compact and uses the latest digital
microprocessor technology. The standard calibrated range of the UV-100 is 0-999 PPM. Its outputs are
an LCD digital display, 0-2.5 VDC, 4-20 mA, and a time and date stamped digital data stream for
external readout and data logging. The data output are via serial port and USB. There is also an
internal data logger which can store and forward approximately 90 hours of data. The theory of
operation is described in Appendix D.
Panel LEDs indicate: power, low Lamp output, low pump flow rate, and ozone concentration at the
sampling point exceeds 0.1 PPM.
The instrument is conditionally warranted for one year. Read the warranty statement at the end of this
manual.
Operation
Plug the AC adapter into AC power and plug the adapter's output plug into the power jack on the
instrument. Find the power switch on the rear panel and turn the instrument on. The green LED
"Power" indicator and the LCD display backlighting should illuminate.
Allow at least 30 minutes
warm-up.
More than 1 hour is preferred if time permits. Initial PPM readings may start out high and
possibly drop to zero for a few minutes. Then the readings will tend towards the actual value as the
systems settles into equilibrium.
The compact, high-speed sample pump in the instrument makes a buzzing sound. This is
normal.
Connect your sample feed tubing to the instrument's 1/4" input compression fitting. The inlet tubing
should be made of PTFE (Teflon), PFA, FEP, PVDF or some other inert material that does not destroy
ozone and that does not desorb plasticizers and other organics that can contaminate the flow path. The
length of tubing should be kept as short as possible (preferably not more than a few feet) to minimize
ozone destruction within the inlet tubing. Tygon, polypropylene (which may look like Teflon) and metal
tubing should not be used. FEP-lined Tygon tubing, which is used inside the instrument provides the
flexibility of Tygon with the inertness of FEP. A Teflon or PVDF inlet filter is highly recommended to
prevent internal contamination of the tubing and absorption cell by particulate matter. Filters and filter
holders are available through Eco Sensors.
