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A re-vamp is now urgently required.
- needs customer light level adjustment NOT from a POT has to be able to be achieved from Comfig.
- the actual LLsensor HAS to be supplied housed in some form - its no good just supplying the sensor
- would be nice to have lux level feedback
- we also add a feed back loop ino our service schedule to tell us when the sensor is not working - this could be a standard response.
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Any other suggestions.
Dont forget we use a single light sensor for multiple applications not just direct comfort so the price could be higher.
Also I have always had an issue with the mounting of the sensor. Its NO GOOD just supplying the sensor it needs to be housed PROPERLY. Nigel .......
So any chance of an update to the light sensor!
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Perhaps the reason why you only sold so few is because of the reasons i have outlined!
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Perhaps, but nevertheless we have to focus our efforts on products that are essential for the product and cannot be obtained elsewhere. If there are better alternatives by other manufacturers then we should spend our time on other more important products, (some of which you have been asking for). The reality is, our resources are limited - the more time we spend on something, the less time we have for other products.
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I will look into this matter for the UK and hope to post a new message in a week or so. I will confer with other distributors in the first instance.
Noted about the packing & lux sensing.
I am surprised so few LSMs were sold as the light / dark event is certainly useful perhaps people have been using alternatives for somewhile.
Nigel
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Yep would agree dusk/dawn detection is a good starting point and I have typically used mains based units with relay outputs to do this. Seem to be better built than LSM and more reliable long term. Perhaps that is why you do not see to many modules sold.
Lux level would be better however because the thresholds for external lighting are different to those needed to operate internal lighting. Back to needing easy to implement analogue I/F\'s into comfort. Could make do with 0-3V that we have now but would need buffer/scaling amp to light sensor.
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Ref the manual 1.0.2
Page 2 mentions:
\'supplied 10K Ohm resistor\'
\'This resistor matches the resistance of the Light Sensor at normal light conditions\'
Page 4 indicates LDR will have a resistance circa 75K
Is there an error here?
Page 2 also mentions:
\'check the wire resistance does not exceed 100 ohms\'.
What to do if this is exceed please?
I have a user where the cable is long and the on/off point is barely achievable.
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The resistance in page 4 is specified at a certain light level. Hence 10K can be acieved under \"normal\" light levels
How far is the LSM cable and what wire are you using. Normal alarm cable is 8 ohms per 100 m, so 100 ohms would be 1.2 KM. There may be other problems with the wiring
Try reducing the series resistance to achieve hogher sensitiviy/gain
