This question was closed without grading. Reason: Answer found elsewhere
Mar 1, 2015 18:25
9 yrs ago
3 viewers *
French term
Accurate, professional translations
Native in: English 
, Italian
Works in: Italian to English, French to English
NTC
French to English
Tech/Engineering
Electronics / Elect Eng
Air conditioning controls
The term appears in a report of a technical investigation on the malfunctions of fresh air dampers in an air conditioning system (the dampers remain stuck on closed). The term I am after is NTC, which (I believe) is a control unit.
"Problématique XXXXX [name of company experiencing problem] : il s’avère que :
Pour une tension maximum d’alimentation de la vanne d’AN de 28,8 V nous ne devrions pas dépasser une tension d’alimentation de 240.5 V.
Si on considère que la FT XXXXX du *NTC* préconise un fonctionnement à 230 V +/- 10% et par conséquent compris entre 207 et 253 V, nous risquons d’avoir un problème par rapport à la conclusion ci-dessus si YYYYY [name of company that supplied air dampers] approfondis son analyse.
Le risque actuel est de devoir remplacer 2628 vannes YYYYY ainsi que les 2628 *NTC* correspondantes dans des locaux de bureaux occupés."
All suggestions are welcome.
"Problématique XXXXX [name of company experiencing problem] : il s’avère que :
Pour une tension maximum d’alimentation de la vanne d’AN de 28,8 V nous ne devrions pas dépasser une tension d’alimentation de 240.5 V.
Si on considère que la FT XXXXX du *NTC* préconise un fonctionnement à 230 V +/- 10% et par conséquent compris entre 207 et 253 V, nous risquons d’avoir un problème par rapport à la conclusion ci-dessus si YYYYY [name of company that supplied air dampers] approfondis son analyse.
Le risque actuel est de devoir remplacer 2628 vannes YYYYY ainsi que les 2628 *NTC* correspondantes dans des locaux de bureaux occupés."
All suggestions are welcome.
Proposed translations
(English)
| 1 +1 | NTC thermistor |
Tony M
|
Proposed translations
+1
9 mins
NTC thermistor
I was going to suggest this, as being the usual translation — but then you say you think it is some kind of controller.
That could indeed be what the 'NTC' stands for — but you may also need to consider that whatever kind of control unit it is, it is thus named because its key component is indeed an NTC (= negative temperature coefficient) thermistor — commonly used for the purposes of sensing temperature, and thence forming some kind of controller.
NTC means that as the temprature rises, the resistance of the element falls, thus providing the basis for a control mechanism (thermostat).
That could indeed be what the 'NTC' stands for — but you may also need to consider that whatever kind of control unit it is, it is thus named because its key component is indeed an NTC (= negative temperature coefficient) thermistor — commonly used for the purposes of sensing temperature, and thence forming some kind of controller.
NTC means that as the temprature rises, the resistance of the element falls, thus providing the basis for a control mechanism (thermostat).
Note from asker:
| I think you are right Tony. They use the term (throughout the document) to indicate a control unit that uses an NTC thermistor as the sensing element. |
Discussion
The cause(s) of the malfunction had not been identified at the time the report was written, but a fault in the motor that drives the damper is strongly suspected.
A NTC (negative temperature coefficient thermistor) cannot deliver supply voltages. It only determines the current. Moreover, a NTC has no assigned rated voltage, but rated resistance, temperature coefficient, admissible power dissipation, etc. See datasheet http://www.murata.com/~/media/webrenewal/support/library/cat...
If the "NTC" is a PSU, then the guess is solved and "NTC" must be read elsewhere. If it is a thermistor, than the context is incomprehensible.
It would be nice to answer these questions and to add further context. Can you also describe, what the reason of malfunction was, and how this failure will be solved? And pleas give us the missing link between the malfunction and the discussion about "NTC" and voltages.
@ Chris: AN = "Air Neuf" makes sense.
Why depends the supply voltage on the valve 'AN'?
What means 'AN'?