Colinc Posted June 19, 2019 Posted June 19, 2019 On 1/15/2019 at 4:25 PM, larryllix said: Success! I followed the manual instructions using the Master Button on the stats (failed) and then tried the same in the Linking mode. Although I could get no LCD indication of Master (as per manual) the temperatures began updating on both my stats. The stubborn newer unit needed the Linking mode the next day, after having success with the co-operative older unit first. Thanks! Back in business. Larry, I'm having the same problem. Can you explain what you did via linking model to get them to work.
larryllix Posted June 19, 2019 Posted June 19, 2019 1 hour ago, Colinc said: Larry, I'm having the same problem. Can you explain what you did via linking model to get them to work. Your stat looks fine. The fields are all populated except for the temperature and Heat/Cool state. Breathe hot air into the bottom of the stat and cause it to update ISY. The 2441ZTH will only update ISY after about a 2-3 degree C change. Change the Heat/Cool state over and back to force it to update ISY. My stats resumed what they were doing. One never worked properly with ISY and only works as a very poor resolution, very expensive, and clumsy probe.
Colinc Posted June 20, 2019 Posted June 20, 2019 Ok, thank you Larry. However, the system has been this way for about 2 months now. We use it to calculate Humidex for a production floor. And it was fine until we started getting into higher temperatures this week. I've verified that they've seen about 10 C of change (Doors open in morning, to high in afternoon) They still do not respond. Reboots of everything, relinking etc etc. The systems worked well for about 3 years. I'll just get another solution. Thanks.
Jimini Posted July 26, 2019 Posted July 26, 2019 Dare I jump in to this multi-year thread? Having just replaced all of my X10 devices, many were 30+ years old, with Insteon devices and an ISY, I am now interested in forging into my next project that has been on my mind for at least a few years and one of my motivation for switching out of X10. Instead of controlling a ventilation fan by time of day, I want to control it by temperature. I need two temperature readings on which to perform some simple logic to decide whether to turn the fan on or off. The fan control is already now done with an Insteon on/off module. I just need the two temperature readings. Looking around quite a bit, this 2441Zth appears to be the only Insteon based temp sensor available. It's actually overkill for what I need and given the many issues expressed in this thread, especially Michel's lament, I am very reluctant to try this out. Is there any alternative without building something nearly from scratch? If I try to make this work, it appears I'll need two of these units, a 5V PS for each and then the remote sensor on a cable to plug into each unit. Sure seems like someone would have marketed a simpler temperature sensor without all the thermostat control.
jec6613 Posted July 27, 2019 Posted July 27, 2019 2 hours ago, Jimini said: Sure seems like someone would have marketed a simpler temperature sensor without all the thermostat control. They did - the new MS2 does temperature readouts as well, and when powered via USB is quite accurate. I have a program that queries several every 20 minutes - you can query as often as you need to but that's good enough for me. You can also have it fire an alert when above temperature thresholds. With an ISY, it's very potent.
Jimini Posted July 27, 2019 Posted July 27, 2019 9 hours ago, jec6613 said: They did - the new MS2 does temperature readouts as well, and when powered via USB is quite accurate. I have a program that queries several every 20 minutes - you can query as often as you need to but that's good enough for me. You can also have it fire an alert when above temperature thresholds. With an ISY, it's very potent. This sounds great but who makes the MS2? I've searched Smarthome, Amazon and a few other places but can't find any MS2 unless I have more to the model name.
paulbates Posted July 27, 2019 Posted July 27, 2019 13 minutes ago, Jimini said: This sounds great but who makes the MS2? I've searched Smarthome, Amazon and a few other places but can't find any MS2 unless I have more to the model name. Its short hand for the Insteon Motion Sensor. they currently only sell the second model in the family Paul
Jimini Posted July 27, 2019 Posted July 27, 2019 Thanks Paul, searching Smarthome for "MS2" did not find anything. This looks like a very cute device but I don't see any mention in the product description or anywhere in the manual about temperature readout. Is this some secret capability that Smarthome doesn't want us to know about?
jec6613 Posted July 27, 2019 Posted July 27, 2019 2 hours ago, Jimini said: Thanks Paul, searching Smarthome for "MS2" did not find anything. This looks like a very cute device but I don't see any mention in the product description or anywhere in the manual about temperature readout. Is this some secret capability that Smarthome doesn't want us to know about? Yep. USB power is pretty accurate (1-2 degrees or so), and you can calibrate it if you need higher accuracy or on battery.
Jimini Posted July 27, 2019 Posted July 27, 2019 Amazing, and nothing in the product description or the manual about this. 1-2 degrees F would be fine for my application. So you haven't had to routinely recalibrate to hold that sort of accuracy? Thanks for pointing this out. Jimini
paulbates Posted July 27, 2019 Posted July 27, 2019 29 minutes ago, Jimini said: Amazing, and nothing in the product description or the manual about this. 1-2 degrees F would be fine for my application. So you haven't had to routinely recalibrate to hold that sort of accuracy? Thanks for pointing this out. Jimini From the insteon product manual perspective, they're assuming we're using an Insteon Hub and setting the device up with their app. Neither of those things is true. You will get help on the forum here to set it up as much as it can be Paul
jec6613 Posted July 27, 2019 Posted July 27, 2019 49 minutes ago, Jimini said: So you haven't had to routinely recalibrate to hold that sort of accuracy? Not if USB powered. The accuracy is based on the supply voltage, so you can calibrate it to remove inaccuracies caused by batteries and such, but if you have a good USB power supply (I use Anker for mine) it's pretty dead on right out of the box and remains consistent.
larryllix Posted July 27, 2019 Posted July 27, 2019 1 hour ago, Jimini said: Amazing, and nothing in the product description or the manual about this. 1-2 degrees F would be fine for my application. So you haven't had to routinely recalibrate to hold that sort of accuracy? Thanks for pointing this out. Jimini If a sensor is mounted in the same device with an RF transmitter, 1-2 degree F accuracy will likely the best will ever get. Manufacturers attempt to calibrate the heat out of the sensor reading and then a room breeze comes along and then it reads too low again. If you mount the sensor on an outside wall it will be worse accuracy and outside temperature, wind, and sun radiance dependant.
Jimini Posted July 27, 2019 Posted July 27, 2019 Thank you all for the very useful information, not to mention passing along the "secret" temperature sensing capability of the device. I will need to purchase a couple immediately before someone decides to remove the extra feature or charge more for it. Jimini
Recommended Posts
Archived
This topic is now archived and is closed to further replies.