Pulse Counter vs Production Counter Question (Gas Meter)

Hey Team NCD,

I have a question about the main difference between two sensors you sell, and why one wouldn’t work on a natural gas meter we tried hooking up to:

  1. IoT Long Range Wireless Two Channel Counter Transmitter - https://store.ncd.io/product/long-range-iot-wireless-two-channel-counter/

vs.

  1. IoT Long Range Wireless Production Counter Transmitter - https://store.ncd.io/product/iot-long-range-wireless-production-counter-transmitter/

We were able to hook up the 1st option (the 2 channel black sensor) to the Natural Gas Meter and Count Pulses. Hookup was straightforward, and everything worked right away.

However, we actually want to use the newer production counter (white box), but we tried multiple different wiring scenarios, and were not able to receive any pulses. We tried using Pins 1, 2, and 3 in all various configurations, and we had no luck. We have successully used the White production Counter on various Water Meters etc without issue (either using Pins 1 and 3 OR 2 and 3, depending on the hardware we are connecting to).

image

So ultimately our question is: why were we able to see a pulse using the older 2-channel counter, but not the newer white production counter? Or thinking is that the newer production counter is the sensor we want to use, since it has a sealed box, better connection cables, no jumpers, and more batteries/capacity, and generally easier to work with.

This is the gas meter in question:


The manufacturer says the following: the output of the meter is wired to a counter which supplies 3VDC to the digital contact.

Thank You Kindly! :slight_smile:

The primary distinction lies in the input type:

  1. The black box connects directly to the digital input.
  2. The white box utilizes an opto-coupler input.

A 3V input won’t suffice to activate the opto-coupler; approximately 5V is necessary (I will verify the precise voltage requirement).

It’s possible to build the white box so that its digital inputs are directly accessible, similar to the black box’s design.

Thanks Bhaskar! So seems for now we should continue using the black one in these cases, ya? Cheers!

I’ll inform our production team to create the product with flexible options. This way, users can easily choose how they want to use the white box products and even switch setups whenever needed, right out in the field

Awesome! This is why we love NCD!

For that white box sensor it would also be great to have an option to report pulses in EITHER the following:

  1. Only based on time interval (pulses every x min)
  2. Only based on pulse interval (report every x pulses)
  3. Or Both

Right now, it only allows one to use BOTH time and pulse interval, which sometimes can cause a rapid fire of readings if the time interval and pulse interval align within a few seconds.

In a perfect world, there would be an option to report every X pulses, OR every Y minutes, if there hasn’t been enough pulses reported in that time. For example, I want to be able to report every 10 counts. But I also want a report after 10 minutes of the LAST reading. This is a useful feature for water meters/gas meters, when there is no flow at night, but we still want to know that a sensor is reporting. Hope that makes sense. If not, I can explain more clearly!

The white box product already does that.
if you dont want the data every so often set the pulse thershold to a really high value