Dräger Chip Measurement System (CMS)
- News
- 19 Jun, 2020
Dräger Chip Measurement System (CMS)
The world's only Chip Measurement System® (CMS) makes spot measurements as easy as 1, 2, 3: insert chip—start measurement—read measurement result on the LCD display. The Dräger CMS combines the advantages of the Dräger-Tubes® with those of an optoelectronic analysis system. Two components define the system: the analyser and the substance-specific chip.
Simple to use
The Dräger CMS is ready for use after only a brief instruction. It makes no difference which gas or vapour you wish to measure – the instrument is used in the same way every time. The operation is guided by a menu on the display and a single button/switch. The display can be backlit and is available in German, English, French or Spanish. After an automatic system self-test, the Analyzer is powered up and the measurement system is immediately ready for operation. Simply insert the chip, perform the measurement and read the measurement result displayed as a concentration on the screen. At the end of the measurement, the chip is automatically ejected from the instrument, and the Analyzer shuts down. An audible signal sounds after each operating step. Power is supplied by four standard and easily replaceable batteries which are especially suited to the Analyzer‘s requirements (see technical data). The battery capacity allows for more than seven hours of measurement and is, of course, always displayed on the screen.
Accurate
The principle of mass current measurement ensures that the instrument remains unaffected by fluctuations in air pressure. Because the chips are calibrated before leaving the factory, there is no need for the user to calibrate the Dräger CMS. Any possible temperature and humidity effects are checked during factory calibration. The Analyzer is explosion protected and certified in accordance with ATEX (Europe), UL (USA & Canada) and CSA (Canada & USA). In addition, the system is protected against dust and splash water in accordance with IP 54, and is resistant to electro-magnetic waves.
Remote-System
To allow measurements at places which are difficult to access, a Remote-System is available. This comprises of an additional pump and extension hose, and is connected to the back of the Analyzer. Because the Remote-System is activated by its own switch, the system can remain attached to the Analyzer. A telescopic probe can also be attached to the Remote-System.
Measurement range and resolution | Depends on chip type used – please see chip list |
Typical measurement time | Between 20 sec and 3 min, depending on the concentration of the gas or vapour and on the type of chip being used Between 20 sec and 10 min in the case of special hazardous gases |
Ready for measurement | Immediately |
Poisoning effects | Not possible |
Calibration | Not necessary |
Temperature during operation | 0 to 40 °C |
Temperature during storage | -20 to +60 °C (Analyzer) < 25 °C (chips) |
Air pressure | 700 to 1,100 hPa |
Humidity | 0 to 95 % relative humidity, non-condensing |
Recording of measured values | Six-fold optics and light conductor system, remission measurement |
System diagnosis | Automatic, with microcontroller for all system components |
Display | LCD, alphanumeric with backlighting |
Menu languages | English, German, French, Spanish |
Operating time | Approx. 450 min of measurement |
Power supply 4 × 1.5 V batteries from the following types: |
Ralsten (Energizer) Alkaline LR6 Duracell MN 1500 LR6 Rayovac Rechargeable Alkaline AA (only in conjunction with a charger: Rayovac Charger PS1 or PS3) |
Weight | 730 g (Analyzer with batteries) |
Dimensions (L × W × H) | 215 mm × 105 mm × 65 mm |
Approvals | ATEX; II 2G Ex ib II C T4 Gb UL (USA & Canada) Class 1, Div. 1, Groups A, B, C, D, Temp. Code T4, CSA (Canada & USA) Class 1, Div. 1, Groups A, B, C, D, Ex ia, Temp. Code T4 |
Protection class | IP 54 dust and splash protection |