| Measuring principle: |
Atomic Absorption spectrometry [AAS] |
| Wavelength: |
253,7 nm |
| UV source: |
Electrodeless low-pressure mercury discharge lamp |
| Stabilization method: |
reference detector and thermal control |
| Optical cell: |
Fused silica (Suprasil), ca. 230 mm length |
| Measuring range: |
0...100 µg/m³
0...1000 ug/m³
0...2000 ug/m³ |
| Sensitivity: |
0.1 µg/m³ [0.01 ppb) |
| Response time (99% signal): |
1 second |
| Computation of mean value: |
Automatically via three freely selectable time intervals |
| Alarm: |
status contacts and optical, when concentration is exceeded, 3 levels are programmable |
| Status alarms: |
measuring cell soiled, battery state, UV source exhausted |
| Control pad: |
Waterproof membrane keypad |
| Measurement Display: |
Graphical LC display with background lighting |
| Signal outputs: |
4...20 mA for recorder;
RS 232 bidirectional for PC, data logger etc.;
parallel for printer |
| Pump: |
membrane pump, approx. 1,5 L / min. |
| Filter: |
PTFE, 1 µ, 47-50 mm diameter |
| Power Supply: |
built-in rechargeable batteries, external 12 V DC sources, 110 ... 240 V/
(50/60 Hz) with included power supply |
| Dimensions: |
425 x 195 x 305 mm (W x H x D) |
| Weight: |
approx. 5.5 kg |
