Showing posts with label Draeger. Show all posts
Showing posts with label Draeger. Show all posts

Tuesday, July 30, 2019

Explosion Proof Transmitter for the Detection of Combustible Gases


The Dräger Polytron® 8700 IR is an advanced explosion proof transmitter for the detection of combustible gases in the lower explosion limit (LEL). It uses a high performance infrared Dräger PIR 7000 sensor, which will quickly detect most common hydrocarbon gases. Besides a 3 wire 4 to 20 mA analogue output with relays, it also offers Modbus and Fieldbus making it compatible with most control systems.

Benefits
  • With its stainless steel 316L enclosure and drift free optics, the Dräger PIR 7000 is built for the harshest industrial environments such as offshore installations.
  • The Dräger Polytron 8700 is equipped with digital interfaces allowing for quick and easy remote interrogation of the transmitter’s state.
  • The Dräger Polytron 8700 belongs to the Polytron 8000 series. All transmitters in this series have the
  • same design and user interface. 
  • Upon request, the Dräger Polytron 8700 can also be supplied with three integrated relays. 
  • Polytron 8700 features a Class I, Div. 1 rated explosion proof enclosure made from aluminium or stainless steel, making it suitable for a wide range of environmental conditions.
  • An available remote sensor condulet housing allows the PIR sensor to be installed up to 30 metres (100 feet) away from the Polytron transmitter.
  • The Polytron 8700 has a data logger, which records measuring and event data from the past years.
For more information about Dräger products, contact Flow-Tech, Inc. They can be reached by calling 410-666-3200 in Maryland, or 804-752-3450 in Virginia. You can also visit their web site at https://flowtechonline.com.

Wednesday, March 21, 2018

Draeger Gas Detection Transmitter and Feature Selection Charts

Here are two charts to help you select Draeger Gas Detection Transmitters.

The diagram below provides a flow chart on how to properly select a Draeger transmitter.

Draeger Transmitter Selection Flow Chart
Draeger Transmitter Selection Flow Chart (click for larger view).

The table below provides a feature comparison table for most Draeger transmitters (it does not show the PointGard 2100, but the P8100 features are very similar, if not identical).

Draeger transmitter feature comparison table
Draeger transmitter feature comparison table
(click for larger view).

Wednesday, December 13, 2017

Draeger Tubes & Chip Measurement System Handbook

Draeger is the leader in industrial gas and vapor analysis and have developed more detection devices and tubes for more applications than any other gas detection company.

Draeger sampling tubes allow identification and measurement of different substances even under difficult conditions.

Draeger Chip Measurement System (CMS) combines Chips for measure specific substances with an electronic analyzer for easy-to-use spot-measurement. The analyzer combines an optical system for analyzing the color reaction with a mass flow controller and pump system.

Download the Draeger -Tubes & Chip Measurement System Handbook here.

Tuesday, March 29, 2016

List of Detectable Gasses and Vapors by CAS-Number

Leak detection Drager
As manufacturing processes advance, the use of flammable and toxic gasses is increasing, along with the probability of gas leaks. The potential for industrial plants, employees, and first responders to confront these situations is also increasing with potentially deadly consequences, namely explosions, asphyxiation, and loss of life.

A leak is an unpredictable abnormal release of gases or vapors of higher concentrations. A leak has to be regarded as an exceptional event of a relative short duration. In case of normal operation there is only clean air (without even low concentrations of the target gas or vapor). A gas detection system for leak detection is not to measure a gas concentration but to give alarm reliably if a preset alarm threshold is exceeded.

A key part of any safety plan is properly identifying what gasses are present, installing the proper early warning detectors, and defining a comprehensive safety plan.

The CAS-number is a worldwide used code to identify a chemical substance non-ambiguously. This is a unique numerical identifier issued to every chemical substance described in the open scientific literature (from 1957 to present) by the Chemical Abstracts Service. It the easiest way to characterize a chemical substance, including organic and inorganic compounds, minerals, isotopes, alloys and nonstructurable materials.

The guide below, provided by Drager, is a very helpful reference document of CAS-Numbers.


As with any critical process control or safety application, consultation with an applications expert is imperative prior to the selection or specification of any leak detection, gas monitoring, or safety device.