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| Measuring principle: |
UV-Absorption |
| Wavelength: |
253.7 nm |
| UV source: |
electrodeless low-pressure mercury lamp |
| Stabilization method: |
reference beam feedback lamp control method and
thermal stabilisation |
| Optical cell: |
fused silica (Suprasil), 23 cm long |
| Optical cell heating: |
approx. 50°C |
| Measuring range: |
lowest range: 0.1...100 µg/m³ (0.01-10 ppb)
highest range: 0...2000 mg/m³ (0-200 ppb) |
| Sensitivity: |
0.1 µg/m³ (0,01 ppb) |
| Response time (99% signal): |
< 1 second |
| Computation of mean value: |
automatically via three freely selectable
times |
| Alarm: |
when concentration is exceeded, 3 levels
programmable |
| Status alarms: |
measuring cell soiled, battery state, UV
source |
| Control pad: |
waterproof membrane keypad |
| Measurement Display: |
graphical LC display with background
illumination |
| Signal outputs: |
4...20 mA for recorder; RS 232 bidirectional for
PC, data logger etc.; parallel for printer |
| Pump: |
membrane pump, approx. 2 L / min |
| Filter: |
PTFE, 1 µ, 47-50 mm diameter |
| Power Supply: |
230 V / 50 Hz (115 V / 60 Hz option) |
| Battery operation: |
external 12 DC source; optional 12 V batteries
integrated, ca. 5h capacity |
| Power consumption: |
30 VA |
| Dimensions: |
45 x 15 x 35 cm (WxHxD) |
| Weight: |
approx. 7 kg |
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