5V DC to start timer?
NT240 - Programmable Timer
Voltage pulse: Logic level 1: 5 to 30 Vdc / Logic level 0: -0.5 to +0.5 Vdc
NT240 - Programmable Timer SKU:NT240. I need help to confirm will work. Have 12V DC circuit. I want timer to start when signal of 5VDC is read. But my "off" state I find a 0.0009 V DC on the line I plan to use to trigger NT240. Will the timer be in an off state with this trace voltage/noise? Please advise. thanks
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Open Sep 23, 2023 - 07:58 PM
1answer
Answer
Sep 25, 2023 - 01:10 PM
The NT240 is a very flexible device. It has many different modes of operation but starting on a trigger signal is one of its basic functions. The trigger can be from a digital input. The NT240 counter recognizes logic level signals 1 between 5 and 30Vdc, and as 0 up to 0.5Vdc. As the 0.0009Vdc is less than 0.5 Vdc, the NT240 will meet the requested characteristics and will work perfectly.
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NT240 - Programmable Timer
Input types: NPN/PNP Sensors; NO/NC Dry Contact Outputs: 1 SPST Relay 3 A / 250 Vac (3 A / 30 Vdc); 1 Voltage Pulse 5 V / 25 mA Response Time: 10 ms for the Relay Output and 0.3ms for the Pulse Output Time Base: 7 Scales, from 99.99 Seconds to 9999 Hours Dual 4-Digit Display UP or DOWN Time Counting...
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