Flame Scanner Compact Version

KLC 20

Flame Scanner Compact Version, especially for LowNOx oil and gas burners.

Compact design
Evaluates the flicker frequency under processor control
Interfering extraneous light sources are blocked out
Signal can be evaluated on the PC via optical interface
Can be connected to all automatic burner controls with LDR or ionization input

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Description

The KLC 20 broadband flame detector is a Flame Scanner Compact Version that has been specially developed for blue-burning firing systems in forced-air burner applications in the domestic sector. The patented evaluation of the signal is based on the flicker frequency of the radiation from the flame. A processor enables the flame signal to be evaluated and converted into a digital signal in the value required for the flame signal amplifier of the corresponding automatic burner control unit. No adjustment work is required during commissioning or maintenance.

The KLC 20 only evaluates the flickering of the flame to be monitored. A device version with interference frequency suppression is optionally available.

Uniform light radiation and any constant frequencies do not lead to permanent flame detection. Interfering extraneous light sources, e.g. from fluorescent tubes or low-frequency background radiation from glowing brickwork, are suppressed. Unwanted influences on flame detection can thus be avoided.
Various relevant operating parameters (e.g. monitoring of the flame signal, serial number) can be read out via the LED display as an optical interface.

Technical Data

Sensor: Semiconductor
Type: VIS/IR: 380 to 1150 nm
Type: UV: 245 to 400 nm
Type: UV1/UV2: 190 to 570 nm
Operating mode: intermittent
Alignment: axial
Operating voltage: 230 V AC (optional 120 V AC, 24 V AC or 24 V DC)
Current consumption: max. 6 mA
Self-test: fully electronic, after switching on
Operating temperature: -20 °C to +60 °C
Switch-on time: typically 0.5 s
Switch-off time: < 1 s
Flicker frequency: 15 to 400 Hz
Switch-on frequency: is adapted to customer requirements at the factory
Switch-off frequency: is adjusted in the factory to customer requirements
Accepted flame loss duration: approx. 280 ms
Switching output: Open Collector
Max. Switching current: 15 mA
Max. Switching capacity: 0.3 W
Max. Switching voltage: 280 V AC / 400 V DC
Protection class: IP 21
Protection class: II

Applications

Downloads

Accessories

Everything you need

Do you have a question about our service portfolio, need planning support for a project or are you looking for a specialist in flame monitoring? Then please contact us.

7. April 2025

BSTcom readout tool

We offer the appropriate readout units for visualizing the flame signals of the flame monitors. An excellent tool for any development department.

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Readout tool KLC-COM

The readout tool for the BSTcom software for compact flame monitors in the KLC 20/21 and KHM 20 series.

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Adapter ADP

Heat-insulated adapter for direct installation on the firebox.

7. April 2025

Angled mirror adapter for KLC

With the optionally available angle adapter, the radial alignment of the KLC 20 or KLC 21 to the flame axis is carried out using an optimally shaped mirror surface.

7. April 2025

KLC cable

In addition to our standard range, we also offer customer-specific solutions for the optimum connection of flame monitors to automatic burner controls.

8. April 2025

KLC flange

Various fastening devices provide a secure fit on burner parts.

8. April 2025

Flame simulator TG 10

For checking the KLC 20/21 and KLC 2002 series

8. April 2025

RMF relay module

The flame detector relay module converts the output signal of the KLC series flame detectors into a potential-free switching output.

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