Photocell Siemens Type QRA 73A27

Deskripsi

Photocell Siemens Type QRA 73A27

Spesifikasi Photocell Siemens Type QRA 73A27

The UV flame detectors are designed for use with Siemens burner controls, for
the supervision of gas or oil flames.
QRA… and this Data Sheet are intended for use by OEMs which integrate the
flame detectors in their products.

Use

The flame detectors are used for the supervision of gas flames, yellow- or blue-burning
oil flames and for ignition spark proving.
Flame detector For use with burner control type Operating mode
QRA2…, QRA10… LGB2… / LGB4… with AGQ1…
LFL…
LFE1…
LFE10…
LMG… with AGQ2…
LME21… / LME22… / LME39… with
AGQ3… / LME7…
LMV2… / LMV3…
LMV5… with AGQ1…
Intermittent
QRA53…, QRA55… LGK16…
LGI16…
Continuous
operation
QRA73…, QRA75… LMV5… Continuous
operation

Mounting notes
 Ensure that the relevant national safety regulations are complied with
Installation notes
 Always run the high-voltage ignition cables separate while observing the greatest
possible distance to the detector and to other cables
Electrical connection of the flame detector
It is important to achieve practically disturbance- and loss-free signal transmission:
 Never run the detector cable together with other cables
– Line capacitance reduces the magnitude of the flame signal
– Use a separate cable
 Observe the permissible lengths of the detector cable (refer to «Technical data» in
the Data Sheet for the relevant burner control)