Falco Fixed Gas Detector

Falco TAC Diffused

Fixed Gas Detector

The Falco TAC diffused is a fixed gas detector that eliminates false readings found with other competing fixed gas detectors and continuously detects Volatile Organic Compounds (VOCs) in hazardous areas. The Falco TAC diffused, fixed gas detector is ideal for detecting VOCs in areas such as refineries and petrol chemical facilities.

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Fixed Gas Detector Features

Falco TAC diffused, fixed gas detector has an externally located Intrinsically Safe sensor for quick and easy servicing without the need for a hot work permit. Dual certification allows your fixed gas detectors to be serviced and calibrated in a hazardous environment without having to remove power!

The standard Falco, both Pumped and Diffused models are supplied with a 10.6 eV lamp allowing the fixed instrument to detect a wide range of VOC gases. The fixed gas detector has 4 detection ranges available, these ranges include 0 – 10 ppm, 0 – 50 ppm, 0 – 1000 ppm and 0 – 3000 ppm.

The Falco TAC, both Pumped TAC and Diffused TAC models utilise a 10.0 eV lamp to detect Total Aromatic Compounds (TACs) which help focus on benzene. The Falco TAC is available with a detection range of 0 – 50 ppm.

Ultimate Performance

  • The only fixed gas detector specifically designed for extreme weather
  • Typhoon technology stops condensation forming with the PID
  • Cutting-edge sensor performance minimises drift & downtime

Ultimate Safety

  • Eliminates false readings found with competing fixed gas detectors
  • Multi-coloured status display can be seen from 20 metres in sunlight
  • Fitted with long-life lamp for one year continuous use
  • Ex d approved

Ultimate Flexibility

    • Pumped and diffused models available
    • Diffused unit idea for detecting VOCs and TACs in areas such as refineries and petrol chemical facilities
  • Falco diffused can be fixed & mounted virtually everywhere
  • Four detection ranges available
  • Selectable response factor for varying VOC selection

Technical Specification

IECEx certification ATEX certfication qps_ certification

Sensor Photoionisation detector
Detection ranges and sensitivity with 10.6 eV lamp fitted* 10.0 ppm, 0.001 ppm
50.0 ppm, 0.01 ppm
1000 ppm, 0.1 ppm
3000 ppm, 1 ppm
Detection ranges and sensitivity with 10.0 eV lamp fitted* 50.0 ppm, 0.01 ppm
Response Time (T90) Diffused models: <30 seconds**
Accuracy ± 5 % or ± 1 digit
User Interface OLED high contrast white on black: 128 x 64 pixels
Screen size: 35 mm (w) x 17.5 mm (h)
5 magnetic switches with LED confirmation (up, down, left, right and enter)
Status indicator Bright visible status indicator: RED, AMBER, GREEN
Output 4 – 20 mA
2 programmable relays
RS 485 Modbus
Falco diffused environmental specification Operational Temperature: – 40 to 50 °C 0-100 % RH and condensing humidity
Storage temperature: – 40 to 60°C
Ingress Protection Main Unit:IP65
Sensor Head: IP65
Power Working voltage: 12 to 40 Vdc
Typical 2 W, Max 7 watts
Mechanical Interface 2 x cable entry points with 3/4″ NPT threads (left and right)
Mounting Points 2 x M8
Weight and Dimensions 2.9 kg
205 (h) x 191 (w) x 125 (d) mm
EMC EMC Directive 2014/30/EU
Certification II 2G db ib IIC T4 Gb
Class 1, Div 1 Groups ABCD T4

* All specifications quoted are at calibration point and under the same ambient conditions.
Specifications are based on isobutylene calibration at 20 °C and 1000 mBar.
** When set to continuous measurement
Modbus® is a registered trademark of Schneider Electric

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For further supporting documentation for Falco TAC Diffused, fixed gas detector please see below.

Falco TAC Diffused, Fixed Gas Detector – Accessories and Replacement Parts

There are a number of accessories and replacement parts available for the Falco fixed gas detector, which can be found below. Please contact us if you would like more information or to place an order.


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