Sofamel BTL-600 Manuel D'instructions page 42

9.9. Frequency
Measurement range
200Hz
1kHz
10. Meter maintenance
This section provides basic maintenance information, instruc-
tions for replacing the battery.
Do not attempt to repair this meter unless you are an
experienced repairer and have the relevant information on
calibration, performance testing and repair.
Warning
To prevent possible electric shock, fire or personal injury:
Do not use the meter for any measurement operation while the
housing is open.
Remove the input signal before cleaning the meter.
Use specified replacement parts. Turn to approved
technicians for repair.
10.1. General maintenance
Clean the meter housing with a wet cloth and a small amount
of detergent, do not use abrasives or chemical solvents.
Resolution
0.1Hz
0.001 KHz
42
Accuracy
± (0.5% of reading + 2)