54 Gas Detection New Pump Communicates with Gas Detector
The new G400-MP2 pump from GfG (Germany) communicates with the gas detectors G450/G460. This interaction allows fault indication via the detector display. Low battery, blocked sampling line or interrupted power fault modes are shown on the display and activate different visual and audible warnings.
Gas samples can be taken from distances of up to 100 m with considerable low-pressure performance – the safe solution for confined space measurement. The G400-MP2 is the only attachable pump available which may remain fixed to the detector. When the pump is turned on, the diffusion inlets are covered and the measurement results are not affected by air flows.
An additional filter system in the sampling line protects pump and sensors from dust and moisture. When the pump is turned off, the gas detector can be operated as usual. The diffusion inlets now allow all gases to enter the sensor chamber.
The G400-MP2 is operated on its own power supply, independently from the gas detector, i.e. the pump does not affect the operational time of the G450/G460. The pump power supply allows at least 10 hours of continuous operation.
Reader Reply Card no 137 Intrinsically Safe Detector Now UL Certified
Crowcon’s (UK) intrinsically safe TXgard-IS+ gas detector is fitted with electrochemical sensors which enable it to detect a wide range of toxic gases and oxygen. Gases detected include those commonly found in industrial applications such as carbon
DETECTION OF REFRIGERANTS WITH IR-TECHNOLOGY
monoxide (CO), hydrogen sulphide (H2S), chlorine (Cl2), ammonia (NH3), nitrogen dioxide (NO2), sulphur dioxide (SO2) and oxygen (O2). Already certified to ATEX* and IECEx** standards, the addition of UL*** certification means the TXgard IS+ can now be used globally, including North America, the Middle East and South East Asia in Zone 0, 1 or 2 or Division 1 or 2 hazardous areas when used with a safety barrier (zener barrier or galvanic isolator) ****.
Typical environments where the Txgard IS+ can be used include plastic, rubber, chemical and semiconductor manufacturing plants, water and sewage treatment plants, steel manufacturing facilities, oil and gas drilling and processing facilities, car parks and tunnels.
Tough and hard-wearing, with IP65 ingress protection, the Txgard-IS+ already has a proven track record in industrial and offshore oil and gas installations worldwide. Simple to operate, it has an intuitive display menu and keypad which enables simple maintenance and which provides comprehensive diagnostic facilities which allow true, one-person non-intrusive calibration. The detector has configurable display options and configurable fault and inhibit currents. Also, by displaying line voltage, there is no need to access test points inside the unit. In addition, the signal current can be ramped manually to a desired value to simplify commissioning with control panels.
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Sensor signals are temperature compensated and the device is compatible with virtually any 4-20mA control system. Unlike some 4-20mA gas detectors featuring LCD displays and keypads, the Txgard IS+ combines its power and signal in just two wires, so only one zener barrier is required.
Reader Reply Card no 138 Reader Reply Card no 139
New! G150 - IAQ CO2 Analyser
All gas detectors go into alarm. And, they all need maintenance. So finding the right gas detector is not your most difficult decision. That’s the easy part. The hard part is deciding what to do when your people are exposed to alarm conditions … when they’re most at risk. And, what do you do when gas detectors go down and you’re waiting for them to be serviced?
iNet solves these common gas detection problems. It is a software-based service that keeps people safe with visibility into alarms, exposure and usage. It keeps gas detectors working without costly and time-consuming maintenance. And you don’t have to buy the gas detectors when you subscribe to iNet. For a monthly fee, you can receive Gas Detection as a Service instead.
iNet gives you help from the Gas Detection People. iNet gives you a safer workplace. iNet gives you cost
savings..Discover iNet. Discover a better way to do gas detection.
www.dontbuygasdetectors.com Reader Reply Card no 141 Reader Reply Card no 142
The Gas Point from Recom (Italy) is an economical, microprocessor-based gas detector for continuous monitoring of toxic gases, oxygen or inflammable gases. Non intrusive calibration and maintenance is performed using a magnetic wand to access the software through the enclosure window – no need to open the enclosure (and obtain special area permits) to perform routine calibrations. The backlight LCD graphic display shows the gas reading, with wide and visible numbers, together with the measure unit and the gas name.
In the programming mode it is possible to change the gain, the off-set, two alarm thresholds, the average, the full scale value, the sensor fail event. So, it is possible to use the same control unit with all catalytic, galvanic or electrochemical sensors. High sensitivity, long term stability and no false alarms are the hallmark of the new and improved sensors. Fastest response to the target gas combined with minimal interference buy other gases or environmental influences as well as the sensor life-time determine the reliability and the operating cost of a system. Moreover, Gas Point has an analog 4-20 mA output, for remote control or to transmit the alarm signal. Integrated control on the power supply assures the correct work also in the case of unstable voltages.
Reader Reply Card no 140
Don’t Buy Gas Detectors There’s a Better Way to do Gas Detection … iNet
Stand Alone Gas Detector
IET
May/June 2010
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