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K800000000EJ 020650A0 170512
4.15 Measurements Menu
This menu is used to access the following readings:
Smoke:
It is possible to enter the data for up to three (3) separate Smoke test measurements taken by means of an
optional device (SMOKE PUMP); see the relevant instructions.
The method consists in taking a certain quantity of combustion gas from the middle of the flue behind the
surfaces of the exchangers at the end of the boiler, and make it pass through a special filter paper. The soot
stain obtained is compared with the surfaces blackened in a different way according to a comparison scale; it is
thus determined the “soot number”, which will be entered in the instrument by hand.
These measurements can be either stored in memory together with the combustion analysis data or printed on
a report ticket.
Ambient CO, NO:
This function allows the operator to easily visualize the peak values of CO and NO in the ambient in order to
verify that acceptable safety conditions are present in the ambient before people enter in it. It is recommended
to respect the concentration limits stated in the following safety standards:
COmax: 35 ppm Recommended exposure limit (REL) stipulated
by the National Institute for Occupational
Safety and Health (NIOSH), equivalent to 40 mg/m
3
and calculated as an 8-hour Time-Weighted
Average (TWA).
NOmax: 25 ppm Recommended exposure limit (REL) stipulated by the National Institute for Occupational
Safety and Health (NIOSH), equivalent to 30 mg/m
3
and calculated as an 8-hour Time-Weighted
Average (TWA).
ATTENTION: it is REQUIRED to perform the autozero in the clean air, so that the ambient CO and NO
measurement are correct. It is advisable to turn on the instrument and wait for the autozero completion
outside the area where the test is being performed (preferably OUTSIDE).
The result of the test can be either associated to the combustion analysis and consequently stored in memory
or immediately printed through the 'Print' menu.
Pressure:
It is possible, through the use of the external flexible pipe made in RAUCLAIR (supplied), to measure a
pressure value within the range stated in the technical features (connect the pipe to P+ input). During the
pressure measurement the 'HOLD' function is made available, which allows to 'freeze' the value shown on the
display, by pressing 'HOLD' key.
TcK Te
mperature:
The user can measure the temperatures within the range specified in the technical specifications (e.g. plant
delivery temperature) by using an OPTIONAL Type K thermocouple contact probe connected to the TcK input.
Pt100 Temperature:
The ambient temperature can be measured within the range specified in the technical specifications by
connecting the remote air temperature probe provided with the instrument to the Pt100 input the pressure
decays in time during a fixed 15 minutes interval, as stated in the applied standard.
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