Gas detectors - Import export

Carbon dioxide detection in industrial plants: Measuring range 0 – 5 % or 0 – 2 % vol. For Martians – provided they exist – a carbon dioxide atmosphere might be their natural habitat. We earthlings can only tolerate low concentrations of this gas. It is true that we are using the special properties of CO 2 for many purposes, but in concentrations above 5000 ppm it can be hazardous to our health. Therefore it must be monitored. In areas that are rarely accessed, such as beverage dispensing facilities, a leak detector might do as a warning device. Wherever people are present, such as workplaces in plants, industrial grade gas detection equipment is required. Here it is: Statox 501 IR. This new version of the field proven Statox 501 IR for combustible gases operates as a 4 – 20 mA transmitter. It can be connected directly to a recording device, process control system, or the optional Statox 501 controller. Its unmatched compact design makes it operable in any environment whether it is food industry, chemical industry, refineries, or cleaning facilities. This explosion proof instrument will do the job everywhere. It is water proof (rated IP 67). The housing materials (stainless steel and fiber-reenforced polyamide) are rugged and easy to clean.

The Statox 560 might be one of the safest gas detectors at all. Functional safety level 2 tells you how low its probability of failure on demand is. Furthermore a self test with the target gas assures that a failure - how unlikely ever - can never go unnoticed. The fact, that the self test is not only capable detecting a failure, but also maintenance request. This saves a lot of time for inspections. The Statox 560 is in any aspect a state - of - the - art product: - The new sensor generation features high sensitvity, fast response, low interferences and plug - and play technology. - The gas generators produce the target gas and thus offer a 100 % proof that the all components are in perfect condition. - The output signal is either a 4 - 20 mA analog signal or a RS 485 signal. - The electronics are well protected in an Ex d housing with window. The self test can be triggered in programmable time intervals, or manually with a magnetic pin. With this tool you can also set parameters without opening the housing. No hot work permit required! - The sensor module holds the sensor, the generator cell and a micropump. It is an Ex i module, i. e. for work on this module there is also no hot work permit required! The module can be replaced completey by another. This design reduces the work in the field to an absolute minimum. The Statox offers 100 % safety plus utmost operator conveniance! The Statox 560 will come to the market end of 2015. Self test

Statox 501 Infratox detects gases in the LEL and ppm range. Protecting people and assets from hydrocarbons The infrared absorption method of gas detection is ideal to detect hydrocarbons such as fuels. It features enough sensitivity to expand the range of application into the ppm range. For instance fuels such as gasoline, diesel or kerosene are mixtures of hydrocarbons. Infrared gas detection theory of operation Some gases absorb light at a certain wavelength (colour). This absorption band is specific to the gas. The rate of the absorption depends not only on the substance to be detected but also on the number of gas molecules (i.e. the concentration of the gas). This premise is used to detect gases. For example, the C - H bond in hydrocarbon molecules will oscillate and absorb light at 3, 4 mm. This fact makes it so easy to detect fuels. Hexane, for instance has 14 C - H bonds compared to Methane which has only 4! A light beam is directed through a cuvette filled with the gas to be detected. The more hydrocarbons are present, the more light will be absorbed. A photo detector at the other end of the cuvette measures the remaining light intensity. The difference between the original and remaining light intensity corresponds to the gas concentration. A reference beam with a different wavelength compensates for potential interferences of dust, humidity or variations of intensity from the light source. Fail-safe technology Failure of important components such as the light source or photo detector will trigger a "system fail" alarm. Most local authorities will accept this as a self-diagnostic feature. Systems including a self-check require less maintenance and calibration, saving time and money. Simple maintenance: Easy to read display and non-Vintrusive calibration The bright LED display of the Statox 501 Infratox shows the gas concentration in percent L.E.L. (Lower Explosion Limit). An important accessory is the calibration adapter, featuring control buttons operating Hall-sensors inside the Ex d housing. The service menu is password protected preventing unauthorised access. All parameters can be checked and changed, or a calibration can be done all without opening the transmitter. The adapter is also equipped with a gas outlet so that it can be used for flow-through applications. Impervious compact design The dimensions of the Statox 501 Infratox are small and compact. The sensor compartment is completely sealed, not allowing dust or insects to enter. It is located in the center of the sensor head. This allows heat radiation from the electronics and the infrared lamp to keep the unit a few degrees above the ambient temperature thus avoiding condensation. This innovative design makes any additional heating unnecessary, allowing the sensor head to be very energy efficient. This saves additional money by eliminating more expensive wiring and a bigger power supply that would otherwise be necessary. The sensor head is rated protection class IP 67 (6 = protection even against fine dust, 7 = submerged 1 m deep in water for 30 minutes). You can have confidence that this system will safely operate even in the harshest environment.

You always know what is going on in your plant: Gas detection system Statox 505 compliant to SIL 2 Standard Intelligent Gas Sensors for AsH 3, Cl 2, ClO 2, CO, COCl 2, H 2, H 2S, HCl, HCN, HF, N 2H 4, NH 3, NO 2, O 2, O 3, PH 3 and SO 2 The Statox 505 new 4 – 20 mA Transmitter for toxic gases and oxygen features everything that a new gas detection instrument of the latest generation needs: State of the Art components (hardware and software), smart sensor technology, “heartbeat” sensor control and complete system diagnostics on board. What makes the Statox 505 so reliable? In process monitoring, the status of plant components in case of a failure is becoming more and more a critical issue. The standards DIN EN 61508 as well as the product standard DIN EN 50402 are powerful tools to calculate the probability of a failure on demand. The Statox 505 complies with all of the requirements of these standards. It obtained the safety integrity level SIL 2. This provides a reliable database for the user to calculate the safety standard of his plant. If the Statox 505 is operated as a SIL 2 component, a so called “proof test” in certain time intervals is mandatory. All OK All important parameters such as sensor „heartbeat“, signal output, calibration, zero, sensitivity, temperature, sensor memory, amplifier, CPU, power supply etc. are continuously monitored for proper function. In case of a failure, an alarm will be triggered. Thus the system cannot fail without the error being noticed. A green LED signalizes the system status. The display and the controls are located at the inside of the housing - well protected from the elements. Minimum time and work in the field The sensors of the Statox 505 are plug and play technology. Each sensor has a F-RAM on board which communicates all relevant parameters to the sensor head: Gas, measuring range, last calibration, ex works calibration, response time etc. The sensors can easily be calibrated in the shop. For the user this means that he never ever will have to do calibration work in the harsh elements (wind, rain, cold, heat). No more lugging heavy test equipment and gas cylinders into the field. All the user has to do in the field, is plug the sensor back in. To do that, you don`t even need a tool! While the sensor is getting calibrated in the shop, the sensor cartridge stays in place and protects the sensor head from dust and rain. Trouble- free wall - or pipe mounting The Statox 505 comes with a mounting plate for either wall - or pipe mounting. No need to open the sensor head for plant installation Storage temperature

New Gas Generator to check personal Gas Detectors A 100% Test in just 10 Seconds Personnel working in chemical plants protect themselves with personal gas detectors from gas exposure. Gas leaks are very unlikely to occur, so the gas detector will always display „0“. An instrument displaying zero can do so for two reasons: a) The concentration is zero. b) The instrument is defective. For good reasons a daily check of the instrument is mandatory. It would be too time consuming to perform a complete calibration every day. The daily functional test with the gas generator makes sure that no instrument failure caused by abuse or wear and tear will go unnoticed. To perform a test, it is sufficient to expose the sensor to a short puff of gas and see if the instrument gives an alarm. To make this test as fast, easy and cheap as possible, no accurate gas concentration is used, but approximately twice the value of the alarm threshold. The gas generator stops gas generation after 10 seconds automatically. If the detector fails to alarm within this time interval it is not safe to be used. The amount of gas produced when activated is very small. Therefore no restrictions regarding transportation and storage of the gas generator apply.

Combustible Gas Detection - upgrade to upper class! Monitoring the environment for explosive gases most of the time you would be looking for hydrocarbons. It is a characteristic of hydrocarbons that they have a number of C - H bonds. These bonds absorb infrared light at a wavelength of 3,4 mm ( unsaturated hydrocarbons absorb at 3,3 mm ). This effect can be used to reliably detect these substances The most important advantage is that they are resistant against catalyst poisons and high concentrations. They can even be used in oxygen free atmosphere. Another important advantage of this technology is that a failure cannot go unnoticed. If an important component such as the lamp or the detector fails, the system will recognise this as 100 % absorption (an alarm situation). Most infrared gas detectors are designed as so - called NDIR (Non Dispersive Infra Red) double- beam detectors. This means, the light beam is divided in two portions with different wavelengthes. One is the measuring beam that will be absorbed by gas, the other is a reference beam at a wavelength that will not be absorbed by gas. This beam compensates for intensity variations of the lamp, dirt and corrosion. As the optics are mostly self maintained, an eventual inspection only checks if there is gas access to the sensor. Therefore much longer maintenance intervals compared to the catalytic sensor can be justified. As a rule of thumb, twice as long is OK. For plants which already have installed a combustible gas detection system, there is now a chance for a very cost- effective upgrade: The Statox 501 LC IR or LC MR! It consists of an EEx e (enhanced safety) terminal box and a sensor with integrated electronics. This sensor operates at the same supply voltage as a catalytic sensor. Its output signal is also identical to the signal of a catalytic sensor! This new innovative technical approach keeps the price in the same ballpark as catalytic sensors! All advantages of an infrared gas detector are now available for nearly the same price as a catalytic sensor and existing gas detection systems can now be upgraded without replacing the existing hardware. Of course the miniaturised chip inside the sensor cannot provide the same powerful electronics and software package as a high- end instrument, but however the new Compur Statox 501 IR LC features the most important advantages of an infrared system. So the next time maintenance is due with your gas detection system, check with Compur Monitors. The investment for an upgrade might pay back within one maintenance interval.

Compur Statox 502 Control - and Common Alarm Module The All – Rounder in Gas Detection No matter if you want to detect toxic or combustible gases: This control module works with any sensor head. It provides the power supply and processes the signal. Three highly rated relays and a 4 – 20 mA output are the interfaces to peripheral instrumentation. Potential front ends may be the Statox 501 or Statox 505 transmitters with electrochemical or infrared sensors, or sensor heads with a Wheatstone bridge signal such as Statox 501 PID, catalytic or the Statox 501 LC and MC series with infrared sensors. Just by the push of a button you can program the module to handle 4 – 20 mA sink or source. Even the bridge voltage can be set to any value between 2 and 5.2 V, it even works with sensor heads of other manufacturers. So there is no restriction at all when selecting the appropriate sensor head for you application. With its two “sense” lines it can even compensate the voltage drop in the cable for very remote sensor heads or if there are extreme temperature variations. For maximum flexibility the measuring range is user programmable. You can also select the unit, no matter if it is ppb, ppm, % LEL or % volume. Easy installation The control module is mounted on a standard DIN rail. With an optional power rail you can interface the 24 V DC power and the alarm signals. This way you can program one of the modules to operate as a common alarm module. Even this function can be programmed just by push button. The application of a control module as a common alarm module is a very useful feature. It displays when any of the modules goes into Alarm 1, 2 or system alarm, and controls peripheral alarm devices. All electrical contacts are located easily accessible on the front side. The terminals for alarm signals, analog output, sensor head connection run into 6 pluggable terminal blocks. This makes not only the first installation quick and easy, but also any service event or system modification. A module can easily be removed out of its row, without interrupting its neighbors or disconnecting wires. Intuitive User Interface You want a gas detection system that needs little or no attention. No matter if setting the initial parameters or performing scheduled calibrations or proof tests: The handling shall be safe, quick and easy. The password - protected Statox 502 software structure is so clear that most menu items are self - explanatory. The “Reset” button brings you time back into the measuring mode at any time. Even if you have to interrupt your work and forget to reset, the watchdog function returns the system into the measuring mode, if no button has been pushed for a while. Functional safety paired with utmost system flexibility The Statox 502 complies with the standards DIN EN 61508 and 61511 functional safety, level SIL 2. In context with the HRC or ARE sensor heads you can create a complete gas detection system for combustible gases complying with SIL 2 standard. In larger installations signals of gas detectors often run into SIL certified process control systems, in smaller plants there is a need for a control module complying with SIL requirements. As any combination sensor head / control module forms a complete gas detection system, this system closes the gap. It is expandable without limits, and there is no restriction to the mix of sensor heads connected. Connecting other front ends The versatility of the Statox 502 does not end with gas detection. You can connect any front end providing a 4 – 20 mA analog signal or a Wheatstone bridge signal. So you can create your own compact control system for a variety of sensors with just one type control device. Accessories Useful accessories such as calibration adapters, intrinsically safe repeaters, Power supplies etc. complete the system. 205 VAC, 8 A min. make or break power >/= 12 V, 10 mA, contakte silver / nickel