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Even empty batteries/rechargeable batteries can contain residual energy that may cause them
to swell, burst, catch fire or explode in the event of a short circuit.
13. Technical data
a) Tachometer
Display ............................................5-digit LC display with backlight
Input voltage ...................................9 V/DC (block battery)
Current consumption ......................approx. 45 mA
Measurement range ....................... Contact measurement: 2 – 20,000 rpm
Accuracy .........................................±0.05 % or ±1 rpm
Resolution .......................................0.001 – 1
Automatic switch-off time ................15 s
Measuring distance ........................max. 3 m
Operating conditions .......................0 to +50 ºC, <80 % RH (non-condensing)
Storage conditions ..........................-10 to +60 ºC, <80 % RH (non-condensing)
Dimensions (W x H x D) .................60 x 180 x 42 mm
Weight ............................................210 g
b) Laser
Wavelength .....................................630 – 670 nm
Max. output power ..........................<1 mW
Class ...............................................2
Non-contact measurement: 2 – 200,000 rpm
Total: 1 – 200,000
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