The SafEye Quasar 900 Series is the very latest open path IR technology and
detects a wide range of hydrocarbon gases – including alkanes (methane to
hexane) and ethylene.
Path lengths can be up to 660ft (200m). Quasar 900 models can be tailored to
protect your high-risk installation.
Reliability and performance is key and is assured with SIL2 approval and
successful 3rd party FM performance / function testing to FM and EN standards
Why Open Path Gas Detectors?
Spectrex invented the xenon flash lamp
design that revolutionized the open-path
gas detection market, which, until then, was
plagued by false alarms due to the drawbacks
of the previous designs. Now, Open path
detectors complement the use of individual
point detectors, take executive action and
offer many significant benefits including:
- Wider area coverage
- Most likely method to pick up any leak
- Very high speed of response
- No unrevealed failure modes
- Beam block warning
- Detector location is less critical
- Size of gas hazard indicated
Applications include:
- Offshore platforms & FPSOs
- Petrochemical plants
- Chemical processing plants
- Gas filling and distribution terminals
- Gas transport and pipelines
- Large storage areas & buildings
- Perimeter monitoring
IMMUNITY TO FALSE ALARMS
Quasar 900 is totally immune to interference from sunlight or
any other sources of radiation such as flare stacks, arc welding
or lightning.
PERFORMANCE IN ALL WEATHERS
The Quasars 900’s high power xenon lamp will compensate for
changing weather conditions, including rain, fog, mist, snow
and makes it immune to influences from solar radiation, arc-
welding, stack flares or vibration from machinery.
The optical lenses are thermostacically heated to prevent
the formation of ice and build up of snow on the optics even
under severe weather conditions. It also eliminates build up of
condensation on the lenses.
Quasar is rated for operation over a very wide temperature
range from -67°F to + 149oF (-55oC to + 65oC) - a truly
worldwide product
RELIABILITY
Quasar 900 is approved to SIL2 (IEC61508), equipped with
heated optics and tolerates a very wide temperature range to
provide reliable detection
FAILSAFE
No unrevealed failures. In normal operation, the output signal
is 4 to 20 mA, depending on the measured gas concentration.
Sub-4mA signals includes indications for beam blockage
(2mA), a fault (1mA). In addition, a continuous self-test of the
Quasar 900 will issue a pre-warning signal (3mA) where the
detector is still operational but requires some attention – for
example when the transmitter or receiver is misaligned or if
there is a deposit build-up on the optics. Maintenance without
downtime!
BUILT-IN DATA LOGGER
An internal data-logger keeps a detailed record of the previous
100 events.
GAS LIBRARY
The detectors are calibrated to three gases. Each detector is
supplied with methane, propane and ethylene ca
No need for any manual adjustment or standard test gas, due
to the built-in calibration of the Quasar 900.
Minimum Detectable Level
Due to Quasar 900's inherent stability and sensitivity, the
minimum detectable level is 0.15 LEL.m
SIMPLE TO ALIGN AND COMMISSION
One person can easily align and commission the system
without the need for special training or skills. After an initial
coarse adjustment by eye, a telescope is fitted allowing fine
adjustment to optimized the adjustment for maximum signal
strength.
Don’t just take our word for it!
We had Factory Mutual (FM)
independently test Quasar 900 to
recognized worldwide Function and
Performance standards for open-
path gas detectors (FM6325 and
EN60079-29-4). Guess what – we
passed with flying colors!
Why do we do this?
apart from anything else, it costs a lot).
Well, its to give you the assurance
that what we say about Quasar
900 is true – and in safety, that’s
important!
Installation Options
Quasar offers options for
your installation:
- 0-20mA analog output with HART
capability
- RS485 Modbus, where up to 256
detectors can be linked.
Worldwide Approvals
- Hazardous area (Zone 1)
FM/FMC, ATEX, IECEx, GOST R
Inmetro
- Performance (3 rd party):
FM 6325 approved by FM
EN60079-29-4 tested by FM
- Reliability:
SIL2 (TUV)
I.S. approved conection port
for hand held terminal in field
or safe area
316L Stainless Steel housing
Heated optics
Electrical entries (x2) 3⁄4" NPT or M25
HART
HART capabilities within the
Quasar 900 can provide digital
communications between the field
and the safe area. This can provide
real time information on the status
of an individual detector as well as
configuration and historical data of
each device, without the need for
extra cable cores.
A key feature of HART is that digital
signals are transmitted on the same
two wires as the 0-20mA current
signal.
Useful and useable information
available via HART includes:
- Display set-up
- Reconfigure set-up – such as gas
calibration, heater control,
address
- Display detector status and
definition
- Perform detector diagnostics
- Troubleshooting
- View Event Log
Complete Access in the Field or Safe Area
The unique, intrinsically safe approved connection port on the Quasar 900 receiver allows simple
connection of various types of handheld unit that will communicate with Quasar 900 in the hazardous
area. These handheld devices allow user to check alignment, zero, perform configuration changes, view
event log, perform diagnostic functions, in conjunction with Spectrex software.
The handheld units are robust weather-proof devices, certified intrinsically safe for use in a hazardous,
classified area.
Two options are available, both able to connect to the intrinsically safe approved connection port on the
Quasar 900 receiver.
- HART handheld
- RS485 handheld
For work in a safe area / workshop, other options are available, still connected via the I.S. port. for your
convenience.
These take the form of cable harnesses to connect with our Mini Laptop kit (p/n 777820-1) or to your own
PC/laptop, using free Spectrex software
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