Service Menu; Switch-Off Limits - TESTO 300 M-I Instruction Manual

Measurement menu
NONAME
AT!
F F T T
MEMORY
S S T T A A R R T T D P P
Main menu
S S S S N N / / H H . . C C . . T T . .
M M E E M M O O R R Y Y
F F U U E E L L
S S E E T T T T I I N N G G
M M E E M M O O R R Y Y
F F U U E E L L
S S E E T T T T I I N N G G
S S E E R R V V I I C C E E
C C U U T T O O F F F F T T H H R R E E S S H H O O L L D D
O O P P E E R R A A T T I I O O N N V V A A L L U U E E S S
D D E E L L E E T T E E M M E E M M O O R R Y Y
R R E E C C A A L L I I B B R R A A T T I I O O N N
CUTOFF T H R E S H O L D
C C O O : : 0 0 5 5 0 0 0 0 0 0 p p p p m m
N N O O : : 0 0 3 3 7 7 5 5 0 0 p p p p m m
S S O O 2 2 : : 0 0 5 5 5 5 0 0 0 0 p p p p m m
STORE

Switch-off limits

In order to protect the measuring cells (CO/NO) the pump switches off
automatically at concentrations >5000 ppm CO , >3750 ppm NO and
> 5500 ppm SO . The appropriate limit value can be input to trigger the
2
alarm when measuring ambient CO.
1. Select the CO, NO, SO
"STORE".
2. Set the limit values with
3. Transfer the values with "Store" and go to next line.
The button saves all of the settings.
There is no protective switch-off if the setting is at 0000 ppm.
Measuring cells are destroyed if gas concentrations are too
If the pump switches off ("rinse" appears in the display), remove the flue
gas probe from the flue gas pipe and purge the measuring cells with
fresh air.
Continue with the measurement only if it is absolutely
If the pump switches off automatically it is recommended that you rinse
the measuring cells with fresh air until the CO value, NO value or SO
below 50 ppm CO.
Switch to the
next line.
47
Reference section
cell and the ambient CO probe with
2
high.
necessary.

Service menu

is
2