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UEi Test Instruments C50OILKIT User Manual

Page 3

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Probe Configuration

Operating Instructions

Before Use Each Time

• 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 flue gas probe is sampling ambient FRESH air

• The water trap is fitted correctly to the instrument

• The flue temperature plug is connected

• The inlet temperature probe is connected if required

Switch ON the instrument by pressing “ “.

After switch-on, the analyzer will scroll through the following
information while performing a zero countdown:

• Currently Set Date
• Currently Set Time
• Remaining Battery Level
• Fuel Selected
• Model and Analyzer Firmware Level

NOTE: The count begins at 59 seconds, and will display the
parameter selected with the rotary knob when the sensors are
detected as stable. If the analyzer will not auto-zero, the sensors are
in need of replacement and the unit should be returned to the
authorized service center.

C O / C O 2 : The CO / CO2 ratio is the ratio of measured CO divided

by calculated CO 2 .

It gives an indication of:

H ow good a gas sample the instrument is reading
H ow clean the boiler is running

For example: A new or clean domestic boiler will display a ratio of less
than 0.004, a unit in need of cleaning 0.004 - 0.008 and a unit in need
of major overhaul will show greater than 0.008.

This only shows a reading when a combustion test is being carried out.
- - - -” is displayed while in fresh air.

: Displays the approximate battery level as follow s :

Full battery level

B a t t e ry at 75 %

B a t t e ry at 50 %

B a t t e ry at 25 %

When the display flashes this, it indicates the batteries are at less than
10% of charge and should be replaced, readings may be affected if the
analyzer is used with low power batteries.

DATE :

Date shown as day, month and year. The order can be
changed using the menu function. Date is stored with a
combustion test.

TIME :

The time is shown in hours and minutes, these details are
stored with each combustion test.
NOT E : When changing the batteries on the instrument the
memory will store the date and time for up to one minute,
if outside this time it may be necessary to re-enter the details.

C50/C75-MAN

P. 2

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