UEi C091, Instruction Manual

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11. BAT: Displays estimated battery life.
If battery voltage falls below a pre-set limit, the display flashes
“
LOW BAT. ” every 10 seconds.
Operating Instructions
Before Using Every Time
Check for the following:
• The particle filter is not dirty
• The water trap and probe line are empty of water
• All hose and thermocouple connections are properly made
• The probe is sampling ambient FRESH air
• The water trap and drain plug are fitted correctly to the instrument
• The temperature probe is connected if required
Appliance Measurements
Place the CO91’s probe into the appliance’s sampling point. The ideal
sampling point is at least two flue diameters downstream of any bend.
Put the probe tip in the flue center. With balanced flue, make sure the
probe is positioned far enough into the flue so no air can “back flush”
into the probe.
Use the probe’s depth stop cone to fix it in flue diameters from 1/4
to 4/5 inch, 6 to 21 mm. Its maximum operating temperature is
1112˚F / 600˚C.
Make sure you do not exceed the meter’s operating specifications.
In particular:
• Do not exceed the probe’s maximum temperature
• Do not exceed the meter’s internal temperature operating range
• Do not put the meter on a hot surface
• Do not exceed the water trap’s levels
• Do not let the meter’s particle filter become dirty and blocked
V i ew data and rotate the dial to see flue changes as you make adjustments.
Press “ HOLD ” first to “ freeze ” the readings before printing, then
press “ PRINT ”.
Ambient Air Measurements
When testing for CO in rooms, make sure the meter has been switched
on in outdoor fresh air before the meter is calibrated.
2. UP/DOWN/ENTER buttons: Press the “ DOWN ” button for
more than 1 second to change the displays top line. The rotary
dial changes the displays bottom line.
Example: The meter will display CO on its top line and
temperature on its bottom line if you turn the rotary dial to
“
TEMP ” and push the “ DOWN ” button until CO is displayed
on the top line.
Use the “ UP/DOWN/ENTER ” keys to change settings (such as
time and date) when the rotary dial is turned to “ MENU ”.
3. PRINT/BACKLIGHT button: Press and release
“ PRINT/BACKLIGHT ” quickly to switch backlight on or off.
Press for more than 1 second before releasing to start the meter
printing. The meter will display “
PRINTING ”.
4. PUMP on/off button: The meter normally operates with the
pump on. Press “PUMP” quickly to switch the pump off and on.
When the pump is switched off, the meter displays “ PUMP OFF ”
approximately every 30 seconds.
5. Freezing the Display: Press “ HOLD/ENTER ” to freeze
all readings. The display flashes and can be printed by
pressing “
PRINT ” key. Press “ HOLD/ENTER ” again for
live measurements.
6. Menu: Rotate the dial to “ MENU ” and use the “ UP ” or
“ DOWN ” buttons to select the following function for change:
1. Time - Uses “Military” time as standard: 7am = 07:00,
7pm = 19:00
2. Date - Select from MM/DD/YY, YY/MM/DD or DD/MM/YY
3. The display’s top line - select from the settings listed below
4. Temperature units - ˚F or ˚C
5. The display screen contrast
6. Language - select from English, French, Spanish, Italian
and German
7. Service - Password protected for authorized service
personnel only
When you have selected the function to change, press
“
ENTER ” to select.
Repeat this as the menu “ drops down ” to select (using the
“ ENTER ” key) and change (using the “ UP ” and “ DOWN ” keys)
the function. The final, logical “ ENTER ” returns you to the main
menu display.
To exit the menu function at any time, rotate the dial to another
position - Unless the final logical “
ENTER ” is pressed, no changes
are made.
7. Time & Date: Displays time and date.
8. Temp: Displays the measured temperature in ˚F or ˚C.
If the temperature sensor is broken or open circuit it displays 000.
9. CO: Displays Carbon Monoxide (CO) values in PPM.
10. CO MAX: Displays the maximum CO value in PPM recorded
during the test.
CO91-MAN P. 2
Taking an appliance test