Troubleshooting - TESTO 521 Instruction Manual

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5. Troubleshooting

Fault
Scheduling is not
accepted.
Fast measurement: Connection
lost. Rectify the fault
and press OK to continue
Measuring program: Maximum
program duration is %s
Fast measurement: Invalid or
missing range selection
Fast measurement: Invalid trigger
values
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 .
Possible causes
Device and PC are not synchronized
Connection lost, battery empty
Program duration too long.
Snapshot function with fast
measurement is lost
Illogical trigger configuration
x. Troubleshooting 27
Remedy
Synchronize device and PC
with the "Synchronize" button
Find and rectify the cause
Clear memory
Add range selection
Change settings accordingly

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