Honeywell UV cell UVZ780 18814

SKU 18814 Model UVZ780 Brand Honeywell
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Buy Honeywell UV cell UVZ780 18814

Key specifications

Detection principleUV
Detection principleultraviolet
Sensing elementUV cell
Ambient temperature-20–60 °C
Frequency40–60 Hz
Supply voltage220–240 V
Application typeOil and industrial burners
all specifications (7) ↓

492.48EUR

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Description

This UV cell is a flame sensor for oil and industrial burners. It detects ultraviolet radiation from a flame and operates with a supply voltage of 220–240 V at 40–60 Hz. The sensing element is a UV cell, and the ambient temperature range is -20 to 60 °C. The model is UVZ780 with article numbers 18814 and 852.211.003.

Further details

Applicationautomatic monitoring of flame presence in burners and boilers
Key parameters for selectionSpectral range, sensitivity, response time, cable length, connector type, mounting sleeve design
Maintenanceregular cleaning of the viewing window and checking signal strength
Materialhigh-quality materials resistant to high temperatures and aggressive environments
MountingDirect line of sight to combustion zone required
Operating principleDuring the start sequence, the UV cell signals whether ignition has occurred within the safety time; if no flame is detected, the control goes into lockout. When flame is lost, the system immediately shuts off fuel supply.
Response characteristicDetects ignition during start sequence, triggers lockout if no flame detected
Typical failure modesContaminated/fogged window, aged cell with weakened signal, damaged sheath or cable

Choosing and fitting

Parts of this type are selected by matching the detector's spectral range and sensitivity to the burner control's input requirements. The response time, cable length, connector type, and mounting sleeve or housing design must also be compared before ordering. The cell must be positioned with an unobstructed view of the flame, and it must signal ignition within the safety time during the start sequence.

Signs of failure

Typical failure modes include a contaminated or fogged viewing window that reduces sensitivity, an aged cell that delivers a weakened signal, or a damaged sheath or cable that interrupts the electrical connection. When the flame is not detected, the control goes into lockout. Regular cleaning of the viewing window and checking the signal strength can help avoid nuisance lockouts.

Manufacturer documentation

All specifications

Detection principleUV
Detection principleultraviolet
Sensing elementUV cell
Ambient temperature-20–60 °C
Frequency40–60 Hz
Supply voltage220–240 V
Application typeOil and industrial burners

Part numbers

SKU18814
Additional article852.211.003
ModelUVZ780

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492.48 EUR 1