Operating Instruction
95980775
www.herthundbuss.com 42
EN
Tach (rotation speed)
Cylinders
Range
Resolution
Accuracy
2
250 RPM – 40 kRPM
1 RPM
± (2,5 % + 5)
3
250 RPM – 40 kRPM
1 RPM
± (2,5 % + 5)
4
250 RPM – 40 kRPM
1 RPM
± (2,5 % + 5)
5
250 RPM – 40 kRPM
1 RPM
± (2,5 % + 5)
6
250 RPM – 40 kRPM
1 RPM
± (2,5 % + 5)
8
250 RPM – 40 kRPM
1 RPM
± (2,5 % + 5)
Input Voltage:
3 – 50 Vp
Overload Protection:
250 V DC/AC
Note:
For measurements of 4-stroke engine, the
reading on the display equals the actual
rotation speed of the engine.
For measurements of 2-stroke engine, the
actual rotation speed is one half of the read-
ing on the display.