Safe Area Gas Detector Type FGD4
For the detection of Oxygen and Toxic Gases
Features
- Sensors are available for detection of a wide range of toxic gases.
- Version available for Oxygen.
- Competitively priced for use in non-hazardous areas only.
- Two wire connection.
- Digital display.
- Plug-in hand held calibration unit.
- Industry standard 4 to 20mA output.
- Optional weather guard available.
Description
The FGD4 Oxygen and Toxic range of Safe Area Gas Detector Heads
use electrochemical sensor technology to detect a wide range of gases.
These detectors must only be used in areas without a risk of the presence
of explosive gases. They use the industry standard 4-20mA current
loop both to power the detector and to convey the gas
levels detected to
a control unit. This
means that under zero
gas conditions 4mA
is drawn from the supply,
and under full scale
gas conditions 20mA
is drawn from the supply.
The current varies
linearly for gas levels
between zero and full
scale. The detector
heads use a two-wire
connection.
Weather Guard
An
optional weather guard
is available for installations
exposed to the atmosphere
or contaminants and
is also suitable for
use in other areas
where hosing down takes
place. The weather
guard reduces the possibility
of water or other contaminants
entering into the gas
sensor thereby improving
the overall reliabilty
of the gas detector
in hash environments.The
weather guard is attached
with tamperproof screws
to ensure that it is
not inadvertently removed.
Calibration Unit
The FGD4 is calibrated using a purpose designed plug-in hand held calbration unit. To carry out a calibration, the operator must open the front cover of the unit, plug in the calibration unit and then present zero and span gases to the sensor during the course of the calibration procedure.
Order Codes
| Stock No. | Description |
|---|---|
| SS771 | FGD4 Oxygen Gas Detector |
| SS772 | FGD4 Hydrogen Sulphide Gas Detector |
| SS773 | FGD4 Carbon Monoxide Gas Detector |
| SS774 | FGD4 Chlorine Gas Detector |
| SS775 | FGD4 Nitrogen Dioxide Gas Detector |
| SS776 | FGD4 Ammonia Gas Detector |
| SS777 | FGD4 Volatile Organic Compounds (VOC) Gas Detector |
| SS778 | FGD4 Sulphur Dioxide Gas Detector |
| SS779 | FGD4 Nitric Oxide Gas Detector |
| SS780 | FGD4 Hydrogen Chloride Gas Detector |
| SS781 | FGD4 Ethylene Oxide Gas Detector |
| SS782 | FGD4 Hydrogen Cyanide Gas Detector |
| SS748 | FGD4 Configuration Unit Complete with Cable |
| SS475 | Protective Weather Guard |