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Picoscope 2204A Overvoltage

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Picoscope 2204A Overvoltage

Postby underworldgamer » Mon Sep 15, 2014 4:34 pm

Hi members,

i have bought this oscilloscope and my first opinion, it is a very reliable testing device.

Is there a Transient Absorption Zener Diode or a Transient Voltage Suppressor Diode on channel A and B for overvoltage protection ? Or what kind of protection is used ?

Thanks

Mathias
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Re: Picoscope 2204A Overvoltage

Postby Hitesh » Thu Sep 18, 2014 8:03 am

Hello Mathias,

The PicoScope 2204A is designed for low voltages on the inputs (max. 20V) so there is a resistor on each of the input channels to provide protection with secondary resistors further in the input circuit.

For voltages over 20V, we recommend the use of attentuation probes (and for safety/legal reasons, the use of active differential probes or some form of isolation for mains measurements).

Please do not exceed the input voltage range as you would risk blowing the input channels :(

Regards,
Hitesh

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