Analog temperature sensors (0-10Vdc)

[Julián Medrano Silvestre]

As you know, Loxone is not selling anymore the 0-10Vdc analog temperature sensors (art. nb. 200006).

Do you know any other alternative to them? Other brands or similar products?

I know we can use 1-wire, Air or "tree" temperature sensors, but I wonder if there is a 0-10Vdc analog option that doesn't involve using Loxone Extensions.

Thanks in advance.

[Peter van Es]

I've used temperature probes and a "Messumformer" from this site: https://www.sensorshop24.de/Temp-Messumformer 

Specifically this DIN-RAIL version for 0-10v: https://www.sensorshop24.de/temp-messumformer/norm-bzw-hutschienen-messumformer/norm-bzw-hutschienen-messumformer/norm-bzw-hutschienen-messumformer-mit-4-20ma/

[Julián Medrano Silvestre]

Thanks for the answers, but I'm talking about INDOOR temp. sensors.

I know that Loxone doesn't manufacture the sensors, so the best would be finding the real brand of those :)

[David Wallis]

i've just bought a load of enclosures the same as the loxone one and just going to use a ds1b1820 in them

[Julián Medrano Silvestre]

I suposse you mean DS18B20 (or DSB1820), because I haven't found information about "ds1b1820".

Both DS18B20 and DSB1820 are 1-wire sensors (digital), and I need ANALOG 0-10Vdc sensors...

[Peter van Es]

The measurement converter takes values from either a Pt100 or Pt1000 sensor (see https://www.sensorshop24.de/temperaturfuehler/kabelfuehler/) which are analog, indoor cable sensors. They cost € 7,70 each, and are available in different temperature ranges and cable lengths. You need enough cable length to run from the sensor to your Loxone cabinet. If that cable is long (more than a couple of meters) get a three wire sensor, as that allows the converter to eliminate the effect of resistance of the cables on the measurement.

You then buy a device which converts the resistance value of the Pt100 or Pt1000 sensor to a 0-10v value which you can attach to an analog input in Loxone. That is the "messumformer" in my previous post. You mount that on your Din rail in your Loxone installation. The messumformer costs € 42. You will need one of these for each temperature sensor.

This approach is clearly only cost effective if you use one or two temperature sensors. If you need more, a 1-wire digital solution is more cost effective. Or use temperature sensors in the Touch Tree.

Op woensdag 19 september 2018 09:01:14 UTC+2 schreef Julián Medrano Silvestre:

[Simon Still]

On Tuesday, 18 September 2018 12:44:29 UTC+1, Julián Medrano Silvestre wrote:

As you know, Loxone is not selling anymore the 0-10Vdc analog temperature sensors (art. nb. 200006).

The Loxone unit is still showing as "in stock" on the UK shop -

https://shop.loxone.com/enuk/indoor-temperature-humidity-sensor.html

This UK supplier looks interesting. 

http://www.syxthsense.com/sensors/rhr/room-humidity-and-temperature-sensor,-0-10v-outputs/

Cheaper than Loxone and options for an LCD display as well.  Also have a version that does CO2 levels and can add presence detection.