PR55-48_PWR Batteries Depleting Quickly

I have multiple of these deployed since Dec. 2022, all configured the same. One of them for the last few months has had to have batteries changed once per week or more. It is only transmitting 1x10 min. We have swapped the transmitter and cable and that did not resolve. Is there a warranty for these? Any troubleshooting tips?

Hi @spscogg Sure, you can send the NCD Sensor in for RMA, just fill out the RMA form here:

Let us know if you have any question,
Thank you.
Eduardo M.

Eduardo,

Unfortunately I don’t have a spare on hand and we can’t pull it without a replacement. I will have to order a new one and once received I can send in the RMA. I’ll keep you posted.

Eduardo,

I am still having issues with battery depleting in less than a week. We have replaced the 4-20mA sensor twice, as well as installed a new PR55-48 and it is still occurring. I noticed that the RSSI value for this unit is averaging about 35. And the transmission counter is only incrementing up to 6 before resetting, when all other transmitters we have out there increment up to 255 before resetting to 0.

The battery’s on this unit are going dead in a matter of days, when all other transmitters out there have lasted well over a year (same transmitter, same config, same sensors). Could transmission failures be causing this? Any other ideas?

Only difference that I see with the new PR55-48 is that it is on firmware 3, when all other older units are firmware 4.

the counter is resetting to 0 means device is rebooting.
if you remove the sensor does the counter go above 6 ?
was this radio module swapped or this came with the transmitter ?

Radio module came with the new transmitter. I have not tested the counter without the sensor installed. It is the same 4-20mA sensor we are using on all of the other transmitters, and as mentioned we have replaced it twice. We have also replaced the m12 pig tail from the transmitter to the junction box where it is wired to the sensor. We put brand new batteries in it on 11/1, the sensor reading is accurate, but the batteries are already almost dead again.

Can you try a factory reset.

I think there must be something short in there or the radio module is not going in sleep. i will recommend sending it back for RMA.

how do i do factory reset?

  1. Press release reset
  2. Immediately press and hold cfg for 20sec
  3. Wait for 3 sec
  4. Press and release reset