HANDHELD AIRFLOW METER
The Airwolf is an Intrinsically Safe (IS) handheld Airflow meter that uses the Vortex shedding principal. It also gives the option of instantaneous as well as average airspeed (Traversing).
- No calibration in field required
(factory calibrated)
- No moving parts therefore highly insensitive to dust & humidity
- Long life battery
- Range is 0.1-10m/s
- Intrinsically Safe (I.S) for Underground in Fiery Mines (Ex ia I)
- Duel 7 Segment Display of average airspeed over a period (Traversing)
- Accurate and easy to use
- 2 Year battery life
- IP65
- Man portable
- Alkaline battery
NON IS SENSORS
A series of economical gas sensors for Non-IS applications. Available in all gas types such as: CO, CO2 CH4, H2S, SO2, NH3 as well as environmental condition sensors such as Velocity, Temperature, Bio-metric Pressure. All Gas types can be accommodated as long as the sensor head is availible
- On site calibration at 6-month intervals
- Various not satandard gas options can be done on request
- Accurately measures specific type of gas (p.p.m. readings)
- Local alarm (105db at 30cm)
- Robust IP65 glass filled polyester enclosure
- Address and Alarm set point values via on-board ethernet point
- Low power consumption
- Visual Indication
- Audio Alarm
- Robust IP65 glass filled polyester enclosure
- LCD display
CAN ROBO
The Can Robo is a compact, robust Air Velocity Robot that us spaced regularly in underground roadways to indicate a go/no go air velocity indication for the passing traffic. The unit works on a temperature differential to determine the airspeed by comparing the difference between two sensors, one in the air ( visual probe) and one in the chamber.
These units work from a 220V supply and have battery backup for power down situations
The thermister probe is housed in a removable jack plug for easy repair and calibration,. This means only the probe, and the entire unit must not be remove.
The total Equipment does not have to be sent to the surface ,as the jack containing the electronics can be sent out for repair and calibration by itself.
As air flow over the probe or thermistor, the temperature drops, and the unit, once reaching m/s, goes Green. When the LED turns Red that is the indication for the vehicle to stop.
MULTISENS (OLD TRISENS)
The MultiSens accurately measures airflow, carbon monoxide (CO) and methane (CH4) and is housed in an IP65 single stainless steel enclosure.
- Onsite calibration at 3-6-month intervals
- Current methane (CH4) sensor can be upgraded to hydrogen sensor (H2)
- Ambient temperature measurement allows for easy compliance to the Fatigue Management Plan set out by each individual mine
A range of single gas and airflow sensors certified to the Exia Standard which can be optionally coupled to the mines existing backbone via the 4-20mA output signal. Standalone sensors are available to measure additional gasses specified by the mine:
- Methane (CH4)
- Carbon Monoxide (CO)
- Air Velocity (AV)
- Measures Co (Carbon Monoxide), `
CH4 (Methane), Air Velocity and
Ambient Temperature - Firepatrol digital input for maintenance control
measurements via external push button - The MultiSens is a compact NON-IS / Intrinsically Safe (IS) environment monitoring unit Exia Group I standards.
- On board data communication interface
- Local audio / visual alarm options
- Ultrasonic Airspeed measurement is not affected by dust, water or temperature
- The (FSS) Fail Safe Strobe is an on board visual healthy or unhealthy indicator
- Local Audio-Visual Alarm Option
- 2 Additional inputs are available for 2 additional gas sensors to be monitored
- The MultiSens can be integrated into Scada/PLC networks to give a real time status indication locally and in the control room
THE SMOKESENS
As smoke is the primary visual indication of a fire, the SmokeSens was designed to detect smoke density effectively, using optical obscurity technology. False alarms caused by stone dust has greatly been minimized in the latest design This information can also be sent to the surface control room for trending and alarming. An Intrinsically Safe (I.S.) version of the SmokeSens is available.
- No Radioactive material used in design.
- Advanced optic technology.
- Automated Detection and alarming of blocked filter.
- Advanced Optical Detection technology.
- Aspirated –Draws air into the measurement chamber.
- Detection of smoke from synthetic conveyor belt, where CO is low and not detectable.
- Calibration preformed with CSIR verified optic filter.
- Integrated tracking function to compensate for drift due to environmental factors.
- Transmissive measurement – sensitive to all colours of smoke.
- 4 – 20 mA output for long distance data communication to PLC.
- Local flashing alarm strobe (optional)
- Local Audio alarm.
- Low power consumption
- Local display for percentage obscurity level
- Robust enclosure
- Removable
- Swappable/exchanging/filter cassette for ease of maintenance underground.
- B.I.T.E – Built in test equipment
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