Monitoring device for pump operation with alarm and temperature measurement

Hello

I'm looking for a device that would allow me to measure and send information about the operating status of a device, let's say a water pump, which will inform, once programmed, whether the pump is running. Also involved is setting up an alarm to be sent as an email, push message or app notification. Found solutions like Tuya, Sonoff or controllers similar to these do not allow monitoring of the operating status. If it were possible, such a device could also have a temperature measurement capability.

Regards

And who said they don't let you monitor operating status?
The first Zamel Supla SBW-02 has 2 relay outputs + 2 control inputs. Tuya or Sonoff also have modules with outputs and inputs.
With an output you control, for example, a contactor which switches on the pump, and a control input controls the operating status. What it all comes down to is how to control the operating state. In the case of a pump, it is best to use a flow sensor. Any alarms or notifications are set in the respective system.
You will find temperature measurements in each of the above systems.

Welcome.

Thank you very much for your suggestions.

Having a moment I looked for those controllers suggested by you. Zamel and would be a good idea but I think there are limitations with it.

Could I have some hints on which of the sonoff or tuya controllers, preferably 2 or more channels, could serve as an extended temperature controller.

I would like a controller such as the Sonoff basic multi to measure the temperature and, if possible, to be able to establish the presence of power on the three-phase contactor from the water pump. All I need is confirmation of the presence of voltage, which I don't know how to extract from the contactor and use.

Regards

When it comes to monitoring the voltage of the contactor, use a current transformer. That is, the kind of ring through which you need to run the power cable to the contactor. Whether you monitor the voltage or the current flowing through the contactor coil in this case is irrelevant.

So in the case of using, for example, Zamel Supla, would the signal from the transformer have to go to the A1 and A2 connectors, the ones that, for example, are responsible for the gate opening and closing signal? Or some other place? Because I can't find diagrams too much where to plug in such tujas or Sonoffs for external sensors or other signal-receiving devices.

If the controller has an input to monitor the open/closed state of the contactor then connect a primitive rectifier (diode + capacitor) to the current transformer. A DC voltage will appear at the output of the rectifier when current flows through the contactor coil. With this voltage you can control a transistor working as a key (simulating the operation of the contactor).
The current transformer must of course be suitable for the current flowing through the contactor coil.

@ziom10zset
as for Supli I would buy

https://allegro.pl/oferta/esp8266-v3-ch340-no..._unit_id=41243dbf-ec69-4be1-af1d-e9baf621584b

https://allegro.pl/oferta/modul-przekaznika-5...duino-raspberry-pi-przekaznik-10a-15892152762

https://allegro.pl/oferta/sensor-ds18b20-czuj...a-z-kablem-1m-cyfrowy-wodoodporny-15141921672
Configuration

https://gui-generic-builder.supla.io/

Compilation settings
Tile
Generic ESP8266 Module
Processor
ESP8266
Processor frequency 160 MHz for ESP82xx
FLASH memory
4MB (FS:1MB OTA:~1019KB)


Controls:
Relays
Buttons

1Wire:
DS18B20 sensor

This helps me a lot. Thank you. I'm taking the time to order. I'm still leaving the topic open as I'm sure there will be questions.

Greetings

ziom10zset wrote:

So in the case of using, for example, Zamel Supel, the signal from the transformer would have to go to connectors A1 and A2, the ones which, for example, are responsible for the gate opening and closing signal? Or some other place? Because I can't find diagrams too much where to plug in such tujas or Sonoffs for external sensors or other signal receiving devices.

First you need to ask yourself the questions:
1. what do we want to control?
2. in what way?
3. how many inputs and outputs do we need and of what type?

Re. 1
Temperature - and here we will need some kind of sensor. But we need to know what the temperature range should be. If it is to be water and the temperature is not to exceed 100'C, the DS18B20 sensor mentioned by a colleague earlier may be a reasonable solution.
The question is, however, whether this should only measure the temperature or whether it should be a thermostat that activates the pump depending on the temperature.

Pump operation - is it enough just to know that the pump is switched on (that the pump supply is on) or something more reliable, e.g. a water flow sensor? In the case of such a sensor, we have feedback that there is water flow, which clearly indicates that the pump is pumping and the hydraulic system is unobstructed.

ad. 2
Probably a controller with the possibility of connecting sensors and relays.
Of course, this could be the ESP. However, you need to remember that you have to put everything together, not infrequently with the use of a soldering iron, make some kind of casing for it, add a power supply, program it. So you need to have a minimum knowledge of electronics and the construction and operation of such microcontrollers.
But you can also use ready-made Tuya, Sonoff, Supla modules.
There are a lot of them on Allego, e.g. several-channel Sonoff controllers with preloaded Supla software with additional connection of DS18B20 sensors.

ad. 3
To realise temperature measurement - 1 temperature sensor
Pump control: one output + one control input
Flow sensor. Here we have a choice between a turbine sensor e.g. YF-B10 or a vane sensor e.g. FSW-4050-GZ1-SUS.
Turbine sensors are primarily used for flow measurement. The higher the flow rate, the higher the pulse frequency.
Vane sensors, on the other hand, are used to signal flow above a certain value.
In principle, a vane sensor is sufficient to have confirmation of pump operation.

>>21389177 .

ad1: The water temperature will not exceed 30 degrees, so this solution with the DS18B20 will be the best. Rather only informative measurement comes into play, but in the future I might expand it into something like a thermostat, but that's a topic for another post, as I intend to control a pump located about 50m away, so I'll play around with these Wi-Fi relays on a DIN rail at some point.

Pump operation, just the pump power information alone is enough. And so the rest of the parameters have to be checked on the ground and that is not a problem.

ad.2 I just think I will use this Supli on ESP8266, connecting and soldering will not be a problem. Selecting power supplies and other devices too, I only got jammed at the design stage itself and lack of any idea as it's been a long time since I've sat on this. It's just that these Sonoff drivers, like the R2 Basic ones, look like they have no possibility of additional modifications, so I'd be more betting on building something myself. I'll probably buy one such Sonoff out of curiosity just to see what it has inside.

ad.3 The temperature measurement itself has to take place at the inlet and outlet of the tank, so two temperature sensors, and if there is room, another one to measure the temperature outside, just for information. Controlling the pump is another sensor, for example in the form of something with a transformer, as colleague @TvWidget wrote. I have an idea yet to add two additional float sensors designed to state two levels of water, one about the lack of water (which occurs in summer periods) and the other is such a sensor for too high a level, because sometimes overflow happened with a faulty float from the water admittance valve. Operating on a 0/1 basis, in programming I will select the buttons and see what happens in the Supli, possibly the limiters.