C7061A1020-ST001 Dynamic Self-Check Ultraviolet Flame Detector

Approvals:

• CE approved according to EN 298 only when used with the correct Honeywell flame amplifiers and/or burner controls
• C7061-series models are approved for use in continuous operation, by using dynamic self-check
• C7061F1 models are ATEX approved for use in explosion hazardous locations; II G Ex d IIC T6, zone 1&2
• C7061F2 models are UL listed for use in explosion hazardous locations; Class 1, groups C and D; and Class 2, groups E, F, and G

The C7061A1020 and C7061F1003 detector models are identical except for housings.
Model C7061F1003 detector is for use in installations requiring explosion-proof packaging. The housing is conforming the EExd IIC T6 classification. More details for the explosion proof housing can be found in the chapter Standards and Approvals.
The C7061F1003 model has a 1-inch NPT tapping for mounting onto a sight pipe. For allowable mounting positions of model C7061A1020 and model C7061F1003, see Page 9.
The terminal block on both models is of wire clamp type with removable screws and is situated in the compartment of the C7061. The UV cell contains an ultraviolet sensing tube, shutter assembly, terminal block and magnifying lens.
The UV sensor can be mounted from the flame safeguard device up to an average length of ca. 30m. This also depends on the flame signal strength that is measured on the flame safeguard device (min. 2Vdc for SLATE and 1.25Vdc for 7800-series). A cable that is chosen too long weakens the flame signal and may cause nuisance flame failures, resulting into a safety shutdown of the burner.
Using a shielded cable (only connect to ground on controller side, i.e., terminal G) always helps to reduce noise. Avoid running flame sensor cables in parallel with “noisy” cables, like power supply cables or ignition

C7061A1020-ST001