Dräger X-pid® 9500 – Product Review

“This revolutionary portable chromatograph’s metamorphic transition in to a simple gas detector is quite remarkable and opens the way for true and accurate measurement of toxic VOC’s such as benzene, toluene and 1,3 butadiene.”

I recently had the pleasure of immersing myself in the capabilities of Dräger’s X-pid® 9500, a gas detection and measurement tool that has not only met, but exceeded my expectations. For anyone deeply involved in an industry where the swift and accurate identification of volatile organic compounds (VOCs) is paramount, the X-pid® 9500 will become an indispensable tool in your daily work.

Let’s start with the physicality of the X-pid. Its design is a testament to durability, striking a perfect balance between being compact and robust. The device feels sturdy in hand, instilling confidence in its ability to withstand the often-demanding conditions of site work. The thoughtfully designed interface and user-friendly controls contribute to a seamless operational experience, making it accessible even for those who may not be seasoned experts in gas detection technology.

The real star of the show, however, is the X-pid’s remarkable sensitivity and specificity. Utilising state-of-the-art photoionization detection (PID) technology, this device can detect an extensive range of VOCs with unparalleled accuracy. The real-time feedback on gas concentrations displayed on the vivid screen ensures users can react promptly to potential hazards, a feature that significantly enhances workplace safety and revolutionises the way trace amounts of toxic gases are measure in the filed.

Draeger X-pid® 9500

Portable VOC Analysis using Gas Chromatography

Another standout aspect of the X-pid is its adaptability. The device comes equipped with a customisable library of target compounds, allowing users to tailor its capabilities to their specific needs. This flexibility proves to be a game-changer, particularly when dealing with complex and diverse gas mixtures. Additionally, the X-pid’s wireless connectivity and data logging capabilities further streamline data management, providing a comprehensive overview of exposure levels over time.

Battery life is another area where the X-pid impresses. With a impressive 8 hour runtime, users can focus on the task at hand without the constant worry of recharging the device. This is a significant advantage for professionals working in the field for extended periods, offering a level of reliability that is invaluable.

“While it’s true, the X-pid comes with a higher price tag compared to some competitors, the investment is justified by its performance and features.”

How does the Dräger X-pid® 9500 Work?

The Dräger X-pid® 9500 is actually a portable gas chromatograph. Ambient air is drawn into the sensor unit allowing for continuous volatile organic compound (VOC) measurement. When required, samples can be injected onto the internal separating columns. Inside these columns, there’s a special coating that loves to grab onto molecules; however, different molecules have different affinities for this coating. So, as they travel through the column, they start to separate allowing each of the individual compounds to be measured separately as they reach the detector placed at the end of the column.

Draeger X-pid Chromatogram

Plots of detector response against time are recorded and used to identify each individual VOC and to calculated their concentration. Such plots are known as chromatograms.

(Note: the time is used to identify the VOC’s, which normally elute off the column in boiling point order, and the peak area is proportional to the concentration.)

The measurement of benzene in the oil and gas industry is a wonderful example of how this works in practise. Benzene has an incredibly low workplace exposure limit of 1ppm in air over 8 hours. However, it never occurs on its own naturally, it’s always found in a complex mixture of other volatile organic compounds. The X-pid therefore allows the accurate measurement of benzene in air using chromatographic analysis down to 0.05 ppm! A fantastic addition the occupational hygienist’s and authorised gas tester’s tool kit.

Limitations of Dräger’s X-pid® 9500?

The Drager X-pid 9500 doesn’t really have any limitations provided you understand its purpose and design. 

The X-pid is intended for the analysis of air and not high concentrations of VOC’s. Therefore if you were to inject a high concentration of VOC’s, you will find the separating columns become overloaded and the device becomes unusable for a period of time while these clear through the separating column. Therefore, you should always check the total concentration of VOC’s with a PID detector first before moving to the chromatographic analysis option to avoid this problem.

Dräger X-pid® 9500 Review

In conclusion, Draeger’s X-pid 9500 has undeniably set a new standard in the realm of gas detection. Its cutting-edge technology, coupled with a user-friendly design and unmatched performance, positions it as first choice for professionals who demand excellence from their tools. If you’re serious about safety and accuracy when measuring individual VOC’s such as benzene in the field, then the Dräger X-pid® 9500 will be an investment that proves its worth.

Quality @@@@@   Ease of use @@@@@   Price@@@@@   Reliability @@@@@ Connectivity @@@@@

Dräger X-pid® 9500 Technical Information

List of Draeger X-pid® 9500 target compounds available is analysis mode.

Dräger X-pid® 9500 Target List Compounds and corresponding CAS number

“Note – these are subject to updates and you should always check the latest published details with the manufacturer.”

  • Acrolein 107-02-8
  • Benzene 71-43-2
  • Butadiene, 1,3- 106-99-0
  • Butanone, 2- 78-93-3
  • Butyl acrylate 141-32-2
  • Chlorobenzene 108-90-7
  • Dichloroethene, 1,1- 75-35-4
  • Dichloroethene, cis-1,2- 156-59-2
  • Dichloroethene, trans-1,2- 156-60-5
  • Epichlorohydrin 106-89-8
  • Ethyl acetate 141-78-6
  • Ethyl acrylate 140-88-5
  • Ethylbenzene 100-41-4
  • Ethylene oxide 75-21-8
  • Hexane, n- 110-54-3
  • Isobutylene 115-11-7
  • Methyl acrylate 96-33-3
  • Methyl bromide 74-83-9
  • Phosphine 7803-51-2
  • Propylene oxide 75-56-9
  • Styrene 100-42-5
  • Tetrachloroethylene 127-18-4
  • Tetrahydrofuran 109-99-9
  • Toluene 108-88-3
  • Trichloroethylene 79-01-6
  • Vinyl chloride 75-01-4
  • Xylene, m- 108-38-3
  • Xylene, o- 95-47-6
  • Xylene, p- 106-42-3

Ambient conditions: at operation –10 to +35 °C 700 to 1300 hPa 10 to 95 % RH

Protection class IP 54 Gas inlets and outlets must be protected from water and dust. The water and dust filter must be always fitted.

Operating times typically 8 h, reduces with lower ambient temperatures.

Dimensions ca. 132 x 281 x 56 mm (W x H x T) Weight ca. 880 g

Approvals: ATEX II 1G Ex ia IIC T4 Ga IECEx Ex ia IIC T4 Ga cCSAus Class I, Div. 1 Group A, B, C & D T4, Ex ia Class I, Zone 0, A/Ex ia IIC T4 Ga CE Marking RED (Directive 2014/53/EU) ATEX (Directive 2014/34/EU)

Measurement mode Seeker: (only 9×00) Sensor 10.6 eV PID (Seeker-PID) Sensitive for compounds < 10.6 eV ionization energy Precision1 (k = 1, ~68 %) < 2 % at 10.0 ppm isobutylene < 2 % at 5.00 ppm benzene Precision1 (k = 2, ~95 %) < 4 % at 10.0 ppm isobutylene < 4 % at 5.00 ppm benzene Limit of detection2 0.01 ppm (isobutylene response) Upper range3 60.0 ppm (isobutylene response).

  1. Measure for the repeatability of measurement results at identical circumstances. The precision was determined as the k-fold relative standard deviation (standard or expanded uncertainty, ~68 or ~95 % confidence interval) for measurements over the course of two days of five hours each with a break but no calibration between days. Therefore, with sufficient sample size, ~68% or 95 % of measurement results will vary less than the corresponding precision. The precision does not describe the difference from measurement results and true concentration that may actually be present.
  • Lowest concentration that can be detected thus at which the sensor (PID) returns a signal. The limit of detection (LOD) depends on the sensitivity of the sensor. The LOD is valid for 100 % sensitivity of the respective PID, a parameter which is determined during calibration and that can be viewed in the archive in the user interface of the control unit.
  • Highest concentration that can be measured thus at which the sensor (PID) returns a signal within the specification of the device.

For more information visit: Dräger X-pid® 9500.