D-R220 is a Optical dust and opacity meter. Monitoring dust emissions on smaller plants and in process applications.
FEATURES
- In-situ measurement directly in the flue gas
flow - Digital operation with microprocessor
- Adjustable limit value
- 2 contact switch outputs
- Measuring value integral 4/15/64 seconds
- Internal event memory
- PC-interface for easy maintenance
- Modbus RTU interface
- Measurement results shown as opacity or extinction
- No weather protection covers needed
SPECIFICATION
| Measurements | opacity, extinction | accuracy | <2% of measuring range |
| Measuring ranges | 0–25/50/100% OP 0–0.2 / 0.4-1.6 Ext 0-160 mg/m3 0-4000 mg/m3 1) dust |
detection limit | <2% of measuring range |
| Measuring principle | transmission | supply voltage | 24 VDC, 0.4 A |
| Flue gas temperature | above dew point up to 200°C, optional up to 500°C, depending on application | dimensions (h × w × d) |
measuring head 160 × 150 × 314 mm |
| Flue gas pressure | -50 up to +10 hPa, optional higher | weight | measuring unit 2.7 kg, reflector 1.6 kg |
| Duct diameter | 400–10,000 mm | Supply box | |
| Ambient temperature | -20 up to +50°C | purge air supply | integrated |
| Protection | IP65 | supply voltage | 85–264 VAC, 46–63 Hz, 50 VA |
| Measuring outputs | 0/4–20 mA / 400 Ohm | dimensions (h × w × d) |
210 × 300 × 380 mm |
| Digital outputs | 2 relay outputs 30 VA, max. 48 V / 0.5A | weight | 13 kg |
| protection | IP54 | ||
| Remarks | 1) with reference to one meter of path length after gravimetric calibration | ||