Eco Sensors
Ozone Analyzer, Model UV-100
9
Division of KWJ Engineering Inc.
User Manual, Rev. 2.0
[email protected] or (800) 472-6626
While any scaling factor may be defined, the analog voltage and current scaling factors are tied
together and cannot be adjusted independently.
With the settings in this example, the output scaling factor is set as 2.5 V (full scale) = 1.00 ppm; that is,
1 V = 0.40 ppm. Also, the current output will be scaled such that the full scale of 20 mA corresponds to
1.00 ppm. A reading of zero ozone concentration will be output as 0 V and as 4 mA.
The analog output are available as part of the DB9 connector on the back of the UV-100. When viewing
the connector from the rear of the instrument, the pin numbers are:
The analog voltage signal is measured across pins 1 (+) and 5 (GND). The analog current signal is
measured across pins 9 (+) and 5 (GND).
Hours of Operation (Hrs):
The UV-100 logs the total number of hours that it has been in use. This is helpful for determining when
the instrument should be serviced. Select
Hrs
and push the
Function
Knob. The total number of hours
will be displayed.
Units (Unt):
From the
Cfg
submenu, select
Unt
and push the
Function
Knob. The
Unt
submenu will appear:
Unt Menu
T/P O3
Changing units for ozone is not available at this time. To change the units for temperature and
pressure, select
T/P
and push the
Function
Knob. The submenu will appear:
T/P Units Menu
T:K P:torr
For temperature, the units of °C or K may be selected. For pressure, the units of mbar or torr may be
selected. To change a value, rotate the knob to move the cursor to the value you want to change, push
the knob to activate the value, rotate the knob to change the value, and then push the knob again to
store the value. You may then rotate the knob to select a different value and repeat the process.
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