??? 11/17/13 10:37 Read: times |
#190144 - Specs that are not normally told.. Responding to: ???'s previous message |
Jan Waclawek said:
And, of course, I doubt any manufacturer would say anything beyond this unless you buy his potentiometers by trucks.
I would tend to agree here - for any product there are some specs that are never divulged in the normal course. This whole requirement arose beacuse I was trying to verify a data acquistion channel meant for a 2 wire loop powered transmitter. In the absence of a calibrator I replaced the transmittter with a combination of 5k/1.5W potentiometer + 1kOhm series resistor. It did the job - quick and dirty - but I was not at ease about the potentiometer when near the 20mA setting. [ loop was powered by a 24V dc source ] Raghu |
Topic | Author | Date |
Power rating of potentiometers | 01/01/70 00:00 | |
Not the point | 01/01/70 00:00 | |
show me such | 01/01/70 00:00 | |
(was) incorrect | 01/01/70 00:00 | |
not your average "pot" | 01/01/70 00:00 | |
Specs that are not normally told.. | 01/01/70 00:00 | |
power | 01/01/70 00:00 | |
test bench vs field design | 01/01/70 00:00 | |
That was kind of my point | 01/01/70 00:00 | |
pot limits | 01/01/70 00:00 | |
While I don't disagree ... there are different failure modes | 01/01/70 00:00 | |
Bourns says: "yes." | 01/01/70 00:00 | |
Tesla says: no | 01/01/70 00:00 | |
cermet or wirewound | 01/01/70 00:00 | |
No big difference, if it all | 01/01/70 00:00 |