Field Instruments

General

For 2-stage atmospheric gas burners Flame detection:

Ionisation probe

• Infrared-flicker detector IRD 1020.1
• UV flame sensor UVD 971

The burner control box DKG 972 controls and supervises atmospheric burners for gas. They are approved and certified according to the applicable European standards and regulations. The microprocessor-based programming sequence ensures extremely stable timings independent of voltage variations, ambient temperature and/or switch-on cycles. The built-in information system not only provides a continuous monitoring of the actual state of the box (very helpful especially for monitoring the start-up phase) but also informs about the cause of a possible lock out. The lock out cause is stored in such a way that it can be retrieved even after a power failure. The control box is designed for maximum safety in case of fluctuations in the voltage supply. If the mains voltage drops below the permitted level, operation is interrupted and the control box automatically prevents the start sequence from being repeated. In this way, the safety of the system is not put at risk by a drop in the mains voltage. This low-voltage protection works not only during start-up but also permanently during operation.

Features:

• The control box circuitry is protected by a flame resistant, transparent plug-in type plastic housing. A central fixing screw locks the control box to the wiring base. The plug-in control box incorporates the microprocessor based timer, flame check and reset circuits.
• Manual reset from lock out and set to lock out is provided by a push button with an integrated LED information system.
• A variety of cable entry points provides complete flexibility for electrical wiring. The wiring base S98 is equipped with spare- and extraterminals and allows together with  a variety of cable entry points utmost flexibility of electrical wiring.
• The DKG 972 are compatible with the TFI 812. Different are only the pre- and post-ignition times.
• Max. heating power according the limits in the Gas Appliance Directive.

Specifications

• Make : Honeywell / Satronic
• Model: DKG 972 Mod. 5
• Item No: 0332005
• Operating voltage: 220/240 V (-15..+10%) 50 Hz (40-60Hz)
• Fuse rating: 10 A fast, 6 A slow
• Sensitivity1 µA  
• Min. ionisation current required1.5 µA
• Sensitivity for stray light0.4 µA
• Flame Detectors: IRD 1020,  UVD 971

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