Tips And Assistance; Questions And Answers - TESTO 338 Instruction Manual

8 Tips and assistance

8 Tips and assistance
8.1.

Questions and answers

v
Question
E02 lights up
E04 lights up
E07
lights up
OPEn
E30 lights up
E31 lights up
E41
lights up
E42 lights up
E43
lights up
E49 lights up
and
flashes
36
Possible causes/solutions
The drawn volume is too low after the end of
the max. permissible measuring period.
> Instrument may be blocked.
> Clean the gas sampling probe, see
Cleaning / replacing the gas sampling
probe, page 34.
Instrument temperature is outside the specified
range
> (Allow it to) cool down or warm up.
Basic position was not reached, gas path
leaks.
> Press
b.P.,
The overpressure is too high
> Open the hose clamp.
The evaluated smoke number does not
correspond to the set measuring range, the
measuring range is changed automatically
> Repeat measurement
System error
> Contact Testo Service.
The optical (smoke number) evaluation is
outside the permissible range.
> Clean the protective glass of the measuring
lens, see Cleaning the instrument and
TopSafe, page 34
> Measuring lens is defective: contact Testo
Service.
Unknown error
> Contact Testo Service.
flash Battery charging not possible.
> Plug in battery
Battery charging <10%
> Connect mains unit
End to carry out positioning again.