Via Lago di Misurina, 76 - Z.I. - 36015 SCHIO-Italy - Tel. +39(0)445/678678 - Fax +39(0)445/678679 - |
E-mail: polidoro@polidoro.com |
Designed by AccaPi Studio S.r.l. |
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Series |
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Q 349A |
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Q 359A |
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Q 358B |
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Aeration |
| Application A Q335 thermocouple in conjunction with a pilot burner, provides a flame proving function in a gas appliance. As long as pilot burner flame is present the millivolt output from the thermocouple keeps the safety valve in the combination gas control open, allowing main gas to flow to the aplliance upon demand. Specification Output: 22 ... 30 mV Heat-up time: 15 s max. Drop-out time: 30 s max. Heat- up time The minimum open circuit output of the thermocouple shall be 15 mV within 20 s when heated in such a way that in satbilized situation the thermocouple tip is at least 600 °C. Drop-out time The maximum drop--out time shall be 30 s, unless otherwise mentioned. The open circuit output of the thermocouple shall drop below 4 mV within 30 s after removing heat source, when thermocouple is mounted in a single port pilot burner and thermocouple tip is heated by a gas flame up to 700 °C. Recommended temperatures Hot junction: 650 ± 50 °C Cold junction: 415 °C max. Recommended pilot burners C7034A and Q334A ''1000 series'' for Q335A Q334A ''2000 series'', Q349A, Q359A and Q385A for Q335C |
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Table: Ordering information (packing quality 100 pieces) |
