Overview
- Wide sensitivity range
- For ambient temperatures from -40°C up to +85°C
- Highest safety combined with highest availability
- Ideal Support for Functional Safety
- Selective to individual burners and fuels
- Wide range of certifications and standards covered
- Low maintenance requirements
- Local display for status and flame intensity
- Optional flame stability analysis in real time
Your Benefit
- Safe process control
Even for strong and fast load changes of the combustion the process can be controlled safely with the flame stability analysis, reactions are possible in due time - Increased load and fuel flexibility
Excellent selective monitoring and information about stability allow operation of the plant in less stable regimes like, e.g., one mill operation - Protection from unscheduled shut downs
Burner specific information about the stability allows decisions for preventative maintenance - Fulfilment of special requirements
Flexible pre-settings permit preparation for varying combustion conditions and fuels - Same technology for differing projects
The same device technology can be used for plants in many territories and based on the most varying systems of standards
Applications
- Power stations
- Chemical industry
- Refineries
- Cement plants
- Waste incinerators
- Steam generators
- Heating plants
Technical Data
| Operational mode | Intermittent operation and continuous operation, 72-hour operation without permanent supervision |
| Safety | Self-monitoring and fail-safe |
| Electrical connection | 24 VDC, 5 W, PELV |
| Flame relay, Status relay | 1x NO contact, 24 VDC, 0.5 A each |
| Flame Failure Detection Time (FFDT) | 1, 2, 3, 5 s (separate setting per range) |
| Analogue output | 0/4...20 mA, 750 Ohm max. |
| Optional real-time information | Flame stability analysis |
| Local display | Flame intensity, Flame ON/OFF, Thresholds, Range selection |
| Spectral ranges | UV, IR |
| Ranges | 2 |
| Threshold switches | Flame intensity and flicker frequency |
| Viewing angle | 6° |
| Communication | LED, Modbus RTU, IrDA |
| Ambient temperature range | -40...+85°C |
| Sighting tube connection | G 1¼" or 1¼" NPT(F) |
| Purge air connection | G ½" or ½" NPT(F) |
| Protection class | IP66/68, NEMA 4X IP65, NEMA 4X (/MP3) |
| Dimensions | 85 x 85 mm, length approx. 250 mm (housing P2) 100 x 100 mm, length approx. 260 mm (housing M5) |
| Weight (without cable) | approx. 0.9 kg (housing P2) approx. 1.3 kg (housing M5) |
| Ex protection | |
| D-LX 201 ../M4/84Ex | II 2G Ex db IIC T6 or T5 Gb II 2D Ex tb IIIC T85°C or T100°C Db |
| D-LX 201 ../M4/85Ex | Cl. I, Div. 1, Gr. A, B, C, D T6/T5 Cl. II, Div. 1, Gr. E, F, G T6/T5; Class III Type 4 Hazardous locations: indoor/outdoor |
| D-LX 201 ../M5/86Ex | Cl. I, Div. 2, Gr. A, B, C, D T6/T4 Cl. II, Div. 2, Gr. E, F, G T6/T4; Class III Type 4 Hazardous locations: indoor/outdoor |
| D-LX 201 ../M5/87Ex | II 3G Ex nA nC IIC T6 or T4 Gc II 3D Ex tc IIIC T85°C or T135°C Dc |
| Max. ambient temperature | +85°C (/84Ex, /85Ex) +65°C (/86Ex, /87Ex) |
| Protection class | IP66, NEMA 4X (/84Ex, /85Ex) IP66/68, NEMA 4X (/86Ex, /87Ex) |
| Dimensions | Ø120 mm, length appr. 310 mm (/M4/84Ex, /M4/85Ex) 100 x 100 mm, length approx. 260 mm (/M5/86Ex, /M5/87Ex) |
| Weight (w/o cable) | approx. 3.0 kg (/M4/84Ex, /M4/85Ex) approx. 1.3 kg (/M5/86Ex, /M5/87Ex) |
Downloads
Brochures
Accessories
- Optical adjustment aid for the alignment of the swivel mount on the sighting tube (D-ZS 118)
- Set of orifice plates for insertion in purge air flange (D-ZS 113 Set)
- LED bar graph display for the flame intensity (D-ZS 129)
- UV-A, UV-B and IR-test light source 230 V/50 Hz (D-ZS 093)
- Swivel mount for the alignment of the flame monitor (D-ZS 033-I)
- Thermal isolator with electrical insulation (D-ZS 117-I)
- Ball valve for closing the sighting tube (D-ZS 133-I)
- Terminal box for connecting the flame monitor (D-ZS 140-12)
- Wide range power supply unit for supply of several D‑LX 201 (D-NG 24/25a)
- D-LX 200 Test kit for software supported tests of the compact flame monitors D-LX 200/720 and D-LX 201/721