Instrument And Error Messages - TESTO 400 Instruction Manual

Error message
Instrument error
072304EF00
Memory error
Memory not
available
Memory error
Meas. program is
active
Printer error
or
printer is not
printing
++++
or
- - - -
Change lithium
battery
Self-test error
- - - - - -
+ - + - + -
- + + + + -
+ - - - - +
If we were unable to answer your question, please contact your distributor or Testo
Customer Service. You will find contact details in the Warranty booklet or in Internet at
www.testo.com .

Instrument and error messages

Possible causes
Numerous!
← Note number!
No memory space available
Measurement program was
set up and is currently measuring
No connection to
printer
Printer is switched off
Printer batteries are empty
Printer in power-save mode
Printer symbol top left
is not activated in display.
Wrong printer selected in
main menu.
Extreme application conditions
(very strong currents near
the measuring instrument)
No or very low
Li battery in instrument
Li battery was put in incorrectly
Probe unavailable
Outside measuring range
Upper limit in measuring range
Lower limit in measuring range
15
Error elimination
Contact our
service department
Erase memory
Cancel meas. program
or wait until
finished
Check plug-in
connection or infrared
transmission line
Switch on printer
Change batteries in
printer
Switch printer off
and then on again
Activate
printer symbol
Correct under
PRINT -
P
RINTER TYPE
Wait until
disturbance disappears
ESC, replace battery
if necessary