Tubular vibration sensors drain their batteries quickly

Hardware
1

Hello,

I have installed several tubular vibration/temperature sensors at one of my customers’ plants.

This customer reported to me that several sensors drained their batteries in just a few weeks (days for some). This seems abnormal to me, considering the long period of battery operation I’ve observed with V3 vibration/temperature sensors.

Here’s the list of parameters I’ve used with one of these sensors. Could you please give me your opinion on what could be causing this situation.

Thank you in advance for your help.

Blockquote
Power: +21 dBm
Retries: 2
LED Alert Mode: Acceleration
LED Accelerometer Threshold: 10
LED Velocity Threshold: 10
Set Acceleration Wake/Interrupt Threshold: Auto Config 40
Mode: Processed
Measurement Mode: Processed data…
Set On Request Timeout in seconds: 1
Set Sampling Duration 1= 50msec, 2= 100msec: 13
Sampling Interval: 30 minutes
Set RTC: Inactive
Output Data Rate: 6400Hz
Set Filtering Enabled
Set Low Pass Filter Probe 1: 2048
Full Scale Range: +/- 8g
Set Dead Band in mg: 1
X, Y, Z Axis: Enabled

2

can you share firmware version on these ?

3

Hi Bhaskar,
Most of them are firmware 20

4

Theoretically with this settings and Int enabled the batteries should last over a year.
how many msg are you getting in one hour ?

5

Sensors send one reading every 30 min. So, 2 readings per hour.

6

whats the environment conditions ?

7

The sensors are installed in an industrial bakery where bread is made. The temperature is controlled at around 68°F (20°C) and humidity is also controlled.

One of the sensors, which quickly discharged its batteries, is installed in a closed room with stainless steel walls (a sort of Faraday cage).

On the other hand, another faulty sensor is installed in a large open room with no obstacles between the receiver and the sensor.

The sensors all have more or less the same settings (see first post).

Thanks

8

if you are using node red, can you share node red flow ?