Bacharach 100, Operation & Maintenance Manual

Page: 8 / 64

Instruction 24-9395 2
Fyrite Pro
1.2 Operational Overview
Pressng the
I/O
button turns the analyzer ON. Note that there s a warm-
up perod of ether 10 or 60 seconds, dependent on the analyzer’s model and
setup, that must elapse before the analyzer can be used.
When usng the analyzer to just measure CO or draft, nsert the analyz-
er’s probe nto the flue-gas stream of the applance under test and begn
testng. The measured values of draft and/or CO wll appear on the ana-
lyzer’s LCD.
For models that calculate combuston effcency, choose a fuel code that cor-
responds to the fuel beng burned by the applance beng tested, and then
press the
eNTeR
button to place the analyzer nto ts Run Mode. Begn
testng by nsertng the analyzer’s probe tube nto the flue-gas stream
of the applance under test. The analyzer wll montor the flue gas and
dsplay measured and calculated values that are relatve to the combuston
process. These values are dsplayed on the analyzer’s LCD, and are chosen
for dsplay by pressng the Increment (

) and Decrement (

) buttons.
Pressng the
hOlD
button durng a test wll freeze all measured and calculat-
ed values at ther current levels. Pressng the
eNTeR
button resumes testng.
For analyzers wth memory, pressng the
hOlD
button twice durng a
test wll dsplay the Prnt/Memory Menu Screen. Usng the

and
eNTeR
buttons the operator can choose to prnt the current readngs,
save the current readngs n memory, recall and vew saved readngs from
memory, clear all the memory, or prnt all saved readngs.
A backlght enables an operator to read the dsplay n dmly-lt areas.
Pressng the
lIGhT
button turns the backlght ON and OFF. The backlght
wll automatcally turn OFF after 10 mnutes of keyboard nactvty.
A power saver functon wll shut the analyzer OFF after 20 mnutes of key-
board nactvty. For models wth an O
2
and CO sensor, however, the power
saver functon s dsabled f the detected O
2
value s less than 17.9% or the
CO value s more than 50 ppm.
Press the
I/O
button to turn the analyzer OFF. Note that there s a 5 sec-
ond delay before the analyzer actually turns OFF, durng whch tme the
unt can be kept ON by pressng the
eNTeR
button. For analyzers that
contan a CO sensor, there s a CO purge feature that keeps the analyzer’s
pump runnng untl the measured CO level drops below 50 ppm.