Turck Sensors ?
Turck Sensors ?
(OP)
As a trial we installed about 30 Turck Sensors.
They were Thermal Dispersion type flow switches.
They were installed in a wide variety of projects so that we could get a feel for them.
Most failed within about 3 months. A few have held in there for about a year, and now those have failed too.
We also installed two other brand thermal dispersion flow switches: 50 Weber sensors and 20 IFM Effector. None of those IFM or Weber sensors failed. All failed Turck sensors were replaced with IFM or Weber and all those failed Turcks were replaced with Weber and none have failed since.
Has anyone had other experiences with Turck Sensors in general even if not the same type of sensor? Good or Bad?
We suspect very wimpy electrical design that cannot live the the real world of transients.
PUMPDESIGNER
They were Thermal Dispersion type flow switches.
They were installed in a wide variety of projects so that we could get a feel for them.
Most failed within about 3 months. A few have held in there for about a year, and now those have failed too.
We also installed two other brand thermal dispersion flow switches: 50 Weber sensors and 20 IFM Effector. None of those IFM or Weber sensors failed. All failed Turck sensors were replaced with IFM or Weber and all those failed Turcks were replaced with Weber and none have failed since.
Has anyone had other experiences with Turck Sensors in general even if not the same type of sensor? Good or Bad?
We suspect very wimpy electrical design that cannot live the the real world of transients.
PUMPDESIGNER
PUMPDESIGNER





RE: Turck Sensors ?
Have you taken anyone from Turck to task for this? They really need to know.
RE: Turck Sensors ?
No, we have not approached Turk. Althought a little pusing got some money back, they seem uninterested.
The money returned for most of the units was minor really compared to the cost of labor,pain, and embarrassment.
We asked around about Turk and a former employee of theirs said that the electronics on their equipment has always been a problem. He said Turck had a standard reply every time - bad power, not their problem.
This accusation of a former employee is of course anectdotal and suspect, but tempting to believe because it backs up what our test revealed.
Hope others respond. Gee, with all the full page adds that Turck runs in the mags I would think others have used their stuff.
PUMPDESIGNER
RE: Turck Sensors ?
Darren
RE: Turck Sensors ?
PUMPDESIGNER
RE: Turck Sensors ?
RE: Turck Sensors ?
http://www.turck.com/
for the present sensor information
RE: Turck Sensors ?
We feel it not worthwhile to study potential power problems in these cases because the other sensors seem fine. Yea, we are guilty of some power problems probably, because we control big pumps, and even our PLC throws small transients around turning relays on and off.
We always take preemptive steps assuming there are always some problems on the line, we provide isolation transformers, MOVs, power supplies, etc. on every system. If any power problem beyond what those components can correct then sensor is too delicate. We feel that every electrical component used in industry must have some of its own help, all transients cannot be eliminated practically. Even our PLC throws small transients turning relays on and off.
dbrune - I went to the link offered by jbartos. Banner seems to be same company as Turk.
PUMPDESIGNER
RE: Turck Sensors ?
RE: Turck Sensors ?
Companies are doomed to mediocrity when their employees take that attitude. I know of companies that would lose their mind and jump over hill and dale if they had this problem.
PUMPDESIGNER
RE: Turck Sensors ?
Years ago, I used a lot of Turck for Industrial Control applications. They had a good reputation and were a favorite choice. Later, they became partnered with Banner, and perhaps a different management philosophy has prevailed. I definitely agree with CHDean that they need to hear about your troubles and be forced to explain the failures.
RE: Turck Sensors ?
RE: Turck Sensors ?
You are absolutely right. Worked with a group of engineering geniuses who weren't terribly well founded in the operating conditions of the "real" world. They designed a programmable controller that was sold to a manufacturer of checkout stands. They were okay except that the relatively low level of electrical noise from the conveyor motor starter would lock them up. No problem, have them wrap them in aluminum foil.
They did the same thing with a line of photoelectric sensors. They were very sensitive to noise, but no problem, the customer can shield them. Why should we build in noise immunity when the customer can shield for it? EXCEDRIN HEADACHE #1.
RE: Turck Sensors ?
As far as turck proximity switches go, I find them to be about average. They fail from time to time ,but nothing out of the ordinary. Let me also say that I have these sensors in a place with alot of EMI. Every 2 seconds a field is created strong enough to disrupt a crt screen from 8 feet away.
I believe all aspects of industry is in seriuos need of an "Industrial Consumer Reports." Until that occurs, I will continue using what I know that is rugged and will go the distance in the real world. Becuase in the end , there are some things you can not buy, and a good name and reputation are not for sale. They have to be earned.
"Schizo" is a great term to describe the in quality between Allen-Bradley IEC contactors verses Allen-Bradley NEMA contactors. When it comes to IEC, I find Siemans to be a much better contactor. Wich is quite dissapointing, when
it comes to NEMA contactors, I havent found anything to beat Allen-Bradley.
Regards,
Afterhrs
RE: Turck Sensors ?
I will second your recommendation of Siemens IEC contactors. We started using them after we started to find some problems with Telemecanique's products, and are impressed by the quality of the Siemens product.
Scotty.
RE: Turck Sensors ?
RE: Turck Sensors ?
Whoa, big time comment on Consumer Reports for industrial. I dream about that.
PUMPDESIGNER
RE: Turck Sensors ?
RE: Turck Sensors ?
http://www.ab.com/manuals/ms/100-2.9.pdf
for contactor comparisons
RE: Turck Sensors ?
1. Banner and Turck are not the same company. They use many of the same sales people. In my area they are not one in the same.
2. Sick does not manufacture capacitive sensors but have them via a private label.
3. Turck and Banner products are typically not competitive for the same application.
4. Turck does not make or carry photos
5. Banner does not make Prox’s
These are the corrections. Now for my opinion. To be fair with any company and our industry it is incumbent on us to contact the manufacturer. I do not happen to use the Turck flow sensor that you speak of but you could help out a brother engineer by working with the manufacturer to solve their issue. Why didn’t you call their 800 number? If the person on the phone cannot help, they get the product specialist involved. The one thing I truly like about Turck is they have always responded with accessibility. (They come to the problem to resolve it.)
Next time, get the manufacturer involved even if you still plan to replace them. It makes our industry better.
RE: Turck Sensors ?
I like your response.
I did complain to perhaps the wrong people,should have gone over their heads, but cannot fault myself too much, how much time do I have? I do that when I can.
Did not put the time in this one because Turck was unwilling to customize the sensor as was the other company that also performed without failure in the trials.
It was a slam dunk, the best one in trials, was also the one that was willing to build custom.
I was hesitant to put this up on the internet, but then I figured what the heck, they were unresponsive, their reps are thick skinned after I lose thousands of dollars with 100% failure rate. How much does it take to get through to them? I may also be guilty of how I judge companies. If I find people at the bottom who are thick skinned, I believe that usually comes from the top down, not just a bad employee. I realize there may be exceptions, but ...?
PUMPDESIGNER