VOCPoint
The Stationary Photoionization Detector VOCPoint is a continuously measuring detector for volatile organic
compounds (VOCs) with an ionization potential <10.6 eV. (New: optional with 11,8eV lamp)
- Extended Measuring Rrange
- Easy User Interface
- High Performance PID Lamp
- Extended Service Interval
Description
The Stationary Photoionization Detector VOCPoint is
a continuously measuring detector for volatile organic
compounds (VOCs) with an ionization potential <10.6
eV. (New: optional with 11,8eV lamp) The use of new
technologies for the excitation source and the sensor
allows a high stability of measurement and longer
maintenance intervals. An integrated active carbon filter
and the circuit sampling an automatic fresh air setup and
automatic calibration are controlled.
The device is designed and approved for use in explosive
atmospheres.
Product information
- Extended Measuring Rrange
- Easy User Interface
- High Performance PID Lamp
- Extended Service Interval
- Automatic Fresh Air Setup
- Temperature / Humidity Compensation
- Simple Calibration
- Flexible Connections
- IECEX / ATEX Certification
| 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) |
| 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 |
