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| Detector principle |
VUV-Photoionization with 10.6 eV hollow cathode lamp with Ceramic Discharge Channel technology (optional with 11,8eV lamp) |
| Detection ranges |
Range: 0 … 20 ppm Isobutene * (isobutylene) 0 … 100 ppm Isobutene * (isobutylene) 0 … 2 000 ppm Isobutene * (isobutylene) |
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Resolution: 0.01 ppm 0.1 ppm 1 ppm |
| Display range |
0 … 20 000 ppm, depending on response factor of detected substance |
| Lower detection limit |
Typical 10 ppb * |
| Display resolution |
Dynamic up to 0.01 ppm |
| Response time |
T90 < 10 s * |
| Signal integrity |
Up to 100 ppm typical > 98 % * Up to 2 000 ppm typical > 95 % * |
| Influence of humidity |
Humidity and temperature compensation at 0 ... 50 °C and 0 … 90 % rH residual effect less than < 10 % FS |
| Operating conditions |
-10 … 55 °C 0 … 95 % rH, non-condensing |
| Storage conditions |
-20 … 60 °C 0 … 95 % rH, non-condensing |
| Gas sampling |
Integrated diaphragm pump (about 250 ml/min) Sample inlet with dust and water protection filter |
| PID lamp life time |
10,6eV: Min. 8 000 hours, typical more than 15 000 h 11,8eV: 4 months from date of delivery |
| Alarms |
2 adjustable alarm levels |
| Power supply |
9 … 36 VDC, max. 4 W, recommended 24 VDC |
| Signalisation |
2 x LED (red) for alarms, 1 x LED (multicolour) for status |
| Relays |
3 SPDT 30 V / 2 A (surge current), 2 x for alarms, 1 x for failure |
| Analog output |
Current loop, 4 … 20 mA and 0 … 5 mA |
| Digital interface |
RS485 (MODBUS) |
| Calibration |
Automatically two-point calibration Zero gas via activated charcoal filter, span gas via sample inlet |
| Response factors |
Selectable built-in response factors, changeable via remote service program |
| User interface |
Graphical display with backlight, magnetic keys |
| Dimension, weight |
200 mm x 370 mm x 133 mm (L x W x H), about 2200 g |
| Ingress Protection |
IP64, Sample inlet with dust and water protection filter |
| Warranty |
2 years, except for components in gas path and wearing parts |
| Approvals |
ATEX/IECEx Gas II 2G Ex db IIC T6 Gb -40 °C ≤ Ta ≤ +60 °C EMC directive 2014/30/EU |