

An innovative fixed gas detector, the Falco TAC diffused, has the ability to detect Volatile Organic Compounds (VOC) in hazardous locations without false readings. An excellent VOC detector is the Falco TAC diffused, fixed gas detector, which can be used in locations such as refineries and petrol chemical plants.
| Country of Origin | United States (US) |
| ATEX Safety / Zone | Zone 1 |
Falco TAC fixed gas detectors include an Intrinsically Safe sensor mounted outside for quick and easy service without the need for a hot work permit. Your fixed gas detector can be serviced and calibrated in a hazardous environment without the need to shut down the power supply.
With a 10.6 eV light, the Falco can detect a wide spectrum of volatile organic compounds (VOCs) in both Pumped and Diffused variants. It is possible to set the fixed gas detector to one of four different detection ranges: zero to 10 parts per million, zero to 50 parts per million, one part per million to one thousand parts per million, or three parts per million.
Total Aromatic Compounds (TACs) are detected using a 10.0 EV light in the Falco TAC Pumped TAC and Diffused TAC models. An option for the Falco TAC is one that detects at concentrations between 0 and 50 parts per million (ppm).
| Technical Specification | Value/Information |
| Sensor | Photoionisation with 10.0 eV lamp |
| Detection ranges and sensitivity | 50.0 ppm* 0.01 ppm |
| Detection time (T90) | <30 seconds (diffused)** |
| User interface | Display: OLED high contrast white on black: 128 (w) x 64 (h) pixels Screen size: 35 mm (w) x 17.5 mm (h) |
| 5 magnetic switches with LED confirmation (up, down, left, right & enter). Magnetic actuator supplied. | |
| Status indicator | Bright visible status indicator: RED, AMBER, GREEN |
| Certification | II 2G Ex d ib IIC T4 Gb ISO9001:2015 |
| Environmental specification | Diffused |
| Op Temp: -40oC to +50oC | |
| Storage Temp: -40oC to +60oC | |
| Pumped | |
| Op Temp: -20oC to +50oC | |
| Storage Temp: -20oC to +60oC | |
| 0-100% RH and condensing humidity | |
| Mechanical interface | 2 x cable entry points with 3/4” NPT threads (left and right) |
| 2 x 3/4” NPT to M20 Stainless steel (supplied) | |
| Dimensions | Without pump: 200 (h) x 190 (w) x 125 (d) mm |
| With pump: 290 (h) x 190 (w) x 125 (d) mm | |
| Mounting points | 2 x M8 |
| Input power | Working voltage: 12 to 40 Vdc Max. power: 7 watts |
| Outputs | 4 to 20 mA (active and passive) |
| RS485 supports Modbus® protocol | |
| Relay x 2 SPST (60 Vdc 2A) – configurable | |
| * All specifications quoted are at calibration point and under the same ambient conditions. Specifications are based on isobutylene calibration at 20 oC and 1000 mBar | |
| ** When set to continuous measurement | |
| Modbus® is a registered trademark of Schneider Electric |
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