The VOXI series of fixed transmitters utilize photo-ionization detection (PID) technology to monitor volatile organic compounds (VOCs) at resolutions of 1 ppb with the MP812 and 10 ppb with the MP815. A built-in heater prevents the condensation of moisture in the transmitter under high-humidity conditions. Innovative designs of the ultraviolet (UV) 10.6 eV lamp and electrometer reduce contamination, producing more accurate and stable readings and extending maintenance intervals. Mobile apps and a Bluetooth controller make on-site configuration, testing and trouble-shooting easy and handy. The OLED display is visible from a distance even under strong lighting, while data and alarms are continuously sent to a controller wirelessly or via cables. Major applications include VOC emission monitoring around petrochemical plants, manufacturing and processing facilities.
| Size | 8.39 x 7.09 x 5.00 in (213 × 180 x 127mm) |
| Weight | 3.3 lbs (1.5 kg) |
| Temperature | -40°C to +70°C |
| Humidity | 0 to 100% RH |
| Sensor | 10.6eV Photo-ionization Detection (PID) |
| Gases | Volatile Organic Compounds (VOCs): benzene, toluene, ethers, esters, alcohols, solvents, fuels, fumigants, ammonia, etc. |
| Ranges, accuracies & response | 0.001-200ppm ±2% full scale (MP812) 0.01-5,000ppm ±5% full scale (MP815) Auto-ranging 4-digit display |
| Response time | t90 < 5 sec |
| Sampling | Diaphragm pump at 250 cc/min up to 100 ft. |
| Power | <5W, 12-30 VDC |
| Outputs | Analog: 4-20mA (3 wires) Digital: RS-485, CAN or ModBus 3 relays, 1 port to external strobe and horn |
| IP rating | IP-66 |
| Housing entries | 2 conduit entries, 3/4″ NPT |
| Approvals | Ex d IIC T6 Gb (IECEx pending) |
| Housing | Aluminum alloy |
| Event log | Up to 10 alarm events |
| Tool | Remote controller and Android apps |
| Alarms | OLED flashing, external strobe and horn |
| Display | 128×64 OLED: Real-time readings, gas type, measurement unit, pump, Bluetooth and wireless statuses if available |
| Installation | Pipe holding, wall mount |
| Warranty | 2 years including PID sensor |
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