For usage in hazardous environments, the Ion Science TVOC is certified ATEX Zone 2 and is the first intrinsically safe fixed VOC monitor. IECEx certification is a guarantee of quality. Volatile organic compounds (VOCs) can be continuously measured using the TVOC, which is a fixed photoionization detector (PID) (VOCs). From a single device, TVOC can precisely measure over three distinct detection ranges.
They incorporate a 1-minute default timer for a changeable duty cycle. It’s adjustable from 5 seconds to 5 minutes. TVOC employs a diffusive sampling technique, which reduces the need for lamp cleaning and servicing, compared to pumping systems. Using TVOC’s 4-20 mA analog output, a DCS system can be used to monitor and manage VOC levels in the workplace.
Features:
- ATEX Zone 2
- IECEx
- 10.6 eV lamp
- Fence Electrode Technology
- Large LCD display
- Four color LED’s
- Multiple Range
- Rugged and Robust design
- Humidity Resistant
- Anti-contamination
- IP65
Versions
- TVOC Fixed PID Detector (ATEX Approved)
- System+ Environmental Monitor with PSU + Lower Input glands
TVOC systems can be utilized in Zone 2 hazardous areas without safety barriers if they have ATEX permits. In Zone 1 hazardous environments, with safety barriers, ATEX and IECEx certifications allow TVOC to be employed. TVOC does not require a permit for hot work, and the PID sensor can be accessed and replaced in seconds, making installation, service, and calibration straightforward.
Best available photoionization (PID) detection
- PID independently verified as best performing on the market
- Range: 0 to 10, 0 to 100 or 0 to 1000 ppm from just one instrument
- In built humidity resistance with no need to compensate
- Anti contamination design for extended field operation
- Variable duty cycle prolongs run time
- Reliable diffusive monitoring no pump required
Ease of Use
- Simple to use minimal training required
- Easy access PID sensor for fast, simple servicing
- Simple calibration procedure
- Easily integrated into a control system
Safety
- Accurate results over all environmental conditions
- Rugged and robust design withstands harsh environments
- Large LCD display for clear readings
- ATEX and IECEx approved
Low Cost Operation
- Inexpensive consumables and parts
- When you register your instrument online, you get a 2-year warranty.
Specifications
| SENSOR (PID) | 10.6 eV lamp with Ion Science patented Fence Electrode Technology* |
| HAZARDOUS AREA SAFETY APPROVALS | ATEX: II 3 G Ex nA IIC T4 (-40°C ≤Ta ≤50°C) |
| ATEX / IECEx: II 2 G EEx ia IIC T4 (-20°C ≤Ta ≤50°C) | |
| INGRESS PROTECTION RATING | Designed to IP65 |
| Dependent on cable glands fitted sensor to IP53 | |
| POWER | |
| 5-28 VDC Max 65 mA | |
| OUTPUT | 4-20 mA requires a 8-35 VDC power supply |
| For IS requirements 8-30 VDC power supply | |
| RANGE | 0 to 10 ppm, 0 to 100 ppm, 0 to 1000 ppm (user selectable) |
| SAMPLING | Diffusion (can be pumped if required using an adaptor) |
| DISPLAY | 7 segment, 4 digit LCD, 4 color LEDs |
| RESPONSE | Sensor - T90 < 5 sec** |
| ACCURACY | 0 to 100 ppm : +/- 2% or +/- 1 ppm (whichever is greater) |
| 100 to 1000 ppm: +-10% | |
| LINEARITY | 0 to 1000 ppm: >75% |
| CALIBRATION | Magnetically accessed |
| 100 ppm Isobutylene via calibration kit accessory | |
| TEMPERATURE | Operating: -20 to 50 oC (-4 - 122 oF) Humidity: 0-95% RH |
| (non- condensing) | |
| WEIGHT & DIMENSIONS | Instrument: 1.4 kg (3.1 lb) |
| Packed: 1.6 kg (3.5 lb) | |
| Dimensions: 188 x 126 x 78 mm (7.4 x 4.9 x 3”) | |
| 4-20 MA ALARM LEVELS | Selectable 2 mA & 3.5 mA options |
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