Home > Hardware > Lascar Data Loggers > Forum > Can the input voltage of an EL-USB-5 go negative?

Can the input voltage of an EL-USB-5 go negative?

Apr 07, 2015
Nathan Lee wrote
I would like to connect to a circuit that toggles ±12VDC. I see that the maximum input voltage is 28 volts for my EL-USB-5, but can't find if reverse voltage is allowed.

Thanks,
Nathan
Reply
2 Answers
Apr 07, 2015
Shawn agent wrote
Nathan,

The minimum input voltage is 3V. You can trigger on the rising or falling edge.

Regards,
DATAQ Instruments Support
Apr 07, 2015
DATAQ Support agent wrote
Negative voltages applied to the EL-USB-5 are not supported and will damage the instrument. Consider model DI-160 as an alternative:
http://www.dataq.com/products/di-160/