Duomo Vent Check Pro Manual

Operation
Press button 1 to turn the meter
on and off.
After a 30 second warm-up the
meter is ready to use and will
display the normal operating
screen (Fig. 2). To skip the warm
up, press and hold button 6 for 2
seconds. It is advisable, however,
to allow the unit to perform its full
setup.
During operation the display will
automatically cycle through the
current level of CO and CO. Press
2
button 5 to see the current air
temperature.
Pressing button 6 will cycle
through minimum, maximum,
average and current readings. In
this mode the time at the bottom
will change to show you how long
you have been in this mode.
cycle through the minimum, maximum and average
readings of each parameter automatically. To return to
normal mode, press button 3.
Pressing button 2 will hold all current readings and HOLD
flashes in the top left of the screen. Press again to exit hold
mode.
w: www.duomo.co.uk -
1
3
5
Keypad (Fig. 1)
A
A A
B B
A = Current
measurement
type (CO
or TA)
B = Current level
C = Current date /
time
Normal Operation
(Fig. 2)
e: sales@duomo.co.uk
Vent Check Pro (CO + CO
Triple reading and display of CO
temperature
NDIR sensor for CO
Datalogging capability (downloadable via USB)
Statistics of weighted averages
BS8494 compliant (from 10 - 60 ºC)
Backlight for working in dark areas
Programmable and audible warning alarms
Easy manual fresh air correction on CO
PC connection via USB interface
With hard case and power adaptor
Can be used with rechargeable batteries
Pressing any button will turn the backlight on for 10
2
seconds.
4
The unit will turn off automatically after 20 minutes of
inactivity. To override this function, turn the unit off then
6
restart it by holding down button 2 then turning it on
with button 1.
The meter will take a new reading every second. When
the operating conditions change, the unit will respond
in 30 seconds for CO
B
C C C When battery supply is low, 'Lob' will be displayed.
Change the batteries or connect the DC adaptor.
NOTE: Do not hold the meter close to the face as
,CO
2
exhalation can affect CO
Recording (Manual)
The Vent Check Pro can manually record up to 99 points
of data.
In normal mode, press button 4 to record a data point.
The REC icon flashes on screen for about 3 seconds and
the screen displays the data point number (1 - 99). Each
point recorded contains information on the current CO
CO and air temperature.
You can view all manually recorded data points at any
time by using button 5. Press and hold it for 2 seconds
- t: 01905 797989 -
, CO and
2
detection
2
.
2
readings.
2
f: 01905 774296 | © Duomo (UK) Ltd. 2007
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