Nodelynk I2c Pulse Counting

Hardware
1

Hello,

Is there a way to use any of the nodelynk I2c boards to count pulses from a flow meter?

Thanks

2

Hi Tyler,

What is the maximum frequency of the pulses and what is the type of the pulse signal(5VDC, Dry Contact, etc)?

3

The spec sheet says current sinking pulse, 36vdc. The maximum frequency for the flow meter will be 200 pulses per second with a minimum pulse width of 2.5ms, though this is scalable in the programming.

Thanks

4

The flow meter is a Seametrics brand AG3000:
https://www.seametrics.com/product/ag3000/

5

@Bhaskar, what would you recommend for this application?

6

I spoke with the manufacturer for this flow meter and I was informed that the voltage of the pulse would be whatever voltage we’re passing through the meter, up to a maximum of 36VDC. The digital input counting the pulses would pass its own voltage source through the flow meter pulsing channel.

7

Tyler,
Looks like the meter pulse output will depend on the pulse reader logic level.

if that the case we have a I2C version of this product which can be used

if you are planning to place any order for an other parts let me know and i can add one of these boards in the order.