详情描述

Explosion-proofDLH－105UltravioletFireFlame detectors are primarily used for flame detection in gas industrial burners. They offer reliable detection performance, capable of eliminating the impact of carbon accumulation and wiring distribution capacitance. They are sensitive only to flames and do not react to high temperatures, radiation, or convection, featuring strong anti-interference capabilities.

I. Main Technical Specifications    

Power Voltage220V　±10%　50/60HZ

2. Explosion-proof Grade: BT4 IP65

3Flame Detection - Ultraviolet Flame Detector (UV Probe)

4.Detection response time ≤ 1 second

5Temperature at the front of the ultraviolet probe; -40℃- 80℃    

6Probe to detector connection distance≤200 meters (length to be processed according to on-site requirements)

7.Explosion-proof housing dimensions ：300*200*150mm

Figure 2 shows the wiring terminals of the fire detection module.

    1Power connectionHotlineL                    2. Power inputNeutral wireN

    3. AcceptProbe connection wire3. Connect the probe lead wire 4

    5. Connected to the normally closed contact of the first group of switch terminals             

    6. Common terminal for the switch contacts of the first group           

    7. Connected to the normally open contact of the first group of switches

    8. Connected to the normally open contact of the second group of switch terminals

    9. Common terminal of the contact points in the second group of switches

    10. Connected to the normally closed contact of the second group of switches

IV. Installation

 Installation

DLH－105Ultraviolet Flame DetectorIt's a non-contact flame detector. Please point the probe at the flame during installation.The temperature range for the probe use is80The probe's detection channel must be ventilated and cooled when used on a burner or other high-temperature equipment. The diameter of the detection channel must not be less than Φ18, and the installation thread of the probe is1 inch。

This productInspectionThe distance will increase with the enhancement of flame radiation intensity and the widening of detection channels, but should not exceed8Metric tons.

2. Calibration

The DLH-105 UV flame detector module is connected to a 220V power source. The power indicator light illuminates, the flame burns, the detection indicator light illuminates, and two sets of switch signals are output. When the flame extinguishes, no switch signals are output. If the AC power source used by the user is not grounded, such as using an isolated transformer to supply power, please ground one wire of the power source.

Section 6: Troubleshooting

The burner is on fire, but the detector shows no fire. It might be due to dust covering the probe lens. Please clean the quartz lens of the probe. If the flame is still not detected after cleaning, please contact the manufacturer!

2. If the lens of the probe is accidentally broken during installation or use, do not replace it with a regular glass sheet, as regular glass cannot transmit the ultraviolet rays produced by flames.

Section 7: Notice

1. Variable frequency drives offer unparalleled advantages in industrial production. However, due to the high-power diode rectification and transistor inverter operations within the drives, they generate high-order harmonic currents in the input/output circuits, causing interference to the power supply system, load, and other nearby electrical equipment. This interference is particularly pronounced in applications requiring high anti-interference capabilities, such as high-precision instruments and computer control systems. Therefore, for power supplies near flame detectors with variable frequency equipment, it is imperative to install an isolation power supply at the flame detector's power input to prevent high-order harmonic currents from damaging or puncturing the flame detector.