Siemens LFE10 User Manual

44 ซ.บรมราชชนนี 70 ถ.บรมราชชนนี ศาลาธรรมสพน์ ทวีวัฒนา กทม. 10170.
website: https://www.add-furnace.com/ โทร: 02-888-3472
Line ID: @add11 Wechat ID: add0883001122
Disposal notes
The flame safeguards contain electrical and electronic components and must not be
disposed of together with household waste.
Local and currently valid legislation must be observed.
Mechanical design
Special features LAE10
Special features LFE10
Flame
supervision
The flame safeguards are of plug-in design and consist of power supply section, flame
signal amplifier, flame relay, an auxiliary relay for controlling the flame detector or the
flame simulation test, and a flame indication lamp located in the unit cover behind a
viewing window.
The electrical circuit is intrinsically safe in connection with LEC1 control unit – is tested
in respect of proper functioning each time the burner is started up. The plug-in bases –
like the housing – are made of impact-proof and heat-resistant plastic. For illustrations
of the plug-in bases and other notes, refer to «Dimensions».
Automatic light simulation test by increasing the sensitivity of the amplifier during the
burner off and the purging times of the LEC1 control unit control.
Automatic testing of the flame detector by increasing the operating voltage of the UV
tube during the burner off and the purging times of the LEC1 control unit.
Flame detector
Data Sheet
QRA2, QRA10
N7712
QRA4
N7711
RAR9
N7713
Ionization probe
Flame supervision by making use of the electrical conductivity of the flame in
conjunction with the rectifying effect is only possible with gas and blue-flame burners.
Since the flame signal amplifier responds only to the DC component of the flame signal
(ionization current), a short-circuit between flame detector and functional earth cannot
simulate a flame signal.
Type summary
When ordering, please give complete type reference.
Flame safeguard is delivered without plug-in base; order these separately (refer to
«Accessories»).
Flame safeguard
 For the supervision of oil flames with silicon photocell detectors RAR9...
Article no.
Type
AC 220…240 V
BPZ:LAE10
LAE10
AC 110 V
BPZ:LAE10-110V
LAE10-110V
 For the supervision of gas / oil flames with flame detector QRA or ionization probe
Article no.
Type
AC 220…240 V
BPZ:LFE10
LAE10
AC 110 V
BPZ:LFE10-110V
LAE10-110V
5/15
Building Technologies Division
CC1N7781en
01.08.2016

Siemens LFE10 Specifications

General

Brand	Siemens
Model	LFE10
Category	Security Sensors
Language	English