Tips And Assistance; Questions And Answers; Error Codes; Main Screen - TESTO 550s Instruction Manual

Feature

12 Tips and assistance

12.1 Questions and answers

Question
flashes
The device switches itself off.
Below range lights up instead of the
measurement parameter display
Above range lights up instead of the
measurement parameter display

12.2 Error Codes

12.2.1 Main screen

Code Possible cause / solution
E 11 Remove the batteries and reinsert them in the instrument. If the
error persists, please contact our service department.
E 12
E 13
E 14
E 15
Value
FX80 R236fa
I12A R245fa
R1150 R401C
R1270 R406A
R13B1 R407B
R14 R407D
R142B R41
R152a R411A
R161 R412A
R170 R413A
Possible causes/solution
Batteries are almost empty.
> Change the batteries.
Residual capacity of batteries too low.
> Change the batteries.
The value is below the permissible
measuring range.
> Keep within the permissible
measuring range.
The value is above the permissible
measuring range.
> Keep within the permissible
measuring range.
12 Tips and assistance
R417B
R417C
R422A
R426A
R508A
R508B
R600
RIS89
SP22
73