Product News

Polytron 8900 UGLD

December 7, 2020 | Product News

Polytron 8900 UGLD

The Polytron 8900 UGLD contains an ultrasonic sensor that detects gas leaks regardless of environmental influences, even before a gas detection sensor detects a critical concentration.

The Polytron 8900 UGLD improves safety and efficiency and has a flexible installation with intrinsically safe remote sensor casing with cable also available. The sensor lifespan is 10+ years, which means no sensor replacement in the meantime. The results are easy to interpret as they are shown in percentages and the durable design and fully sealed sensor for reliable use even in harsh conditions.

An HSE study came to the conclusion that 36% of major gas releases and 69% of significant gas releases (0.1 – 1.0 kg/s) are undetected by gas detectors.

“Field trials have indicated that gas plumes in well ventilated areas may not be detected by fixed point or open path detectors. Analysis of hydrocarbon release incidents shows that conventional gas detectors have 65% detection efficiency.”

In the event of a potentially hazardous situation, the measured sound pressure is displayed in an easy-to-understand test value range of 0 to 100% (equivalent to 55 – 110 dBA). This value is easy to interpret, giving you complete transparency over the task at hand.

The Polytron 8900 UGLD triggers the gas leak alarm whenever the ultrasound caused by the gas leak exceeds background noise by 11% for a pre-adjustable period of up to 30 seconds.


Standards and Approvals

Ex db [ia] IIC T4 Gb,

-40 ≤ Ta ≤ +40 / +70 °C

Class I, Div 1, Groups A, B, C, D;

Class I, Zone 1, Group IIC;

T-Code T6 / T4

Class I, Div 1, Groups A, B, C, D;

Class I, Zone 1, Group IIC;

T-Code T6 / T4

II 2G Ex db [ia] IIC T4 Gb,

-40 ≤ Ta ≤ +40 / +70 °C

CE markings
ATEX (Directive 2014/34/EU)

Electromagnetic compatibility
(Directive 2014/30/EU)

Low voltage (Directive 2014/35/EU)

Marine approvals



TÜV Süd certificate

The DrägerSensor® UGLD Ultrasonic Sensor

This unique sensor is PVC coated ceramic piezo, which does not need weather guard. The sensor has a built-in self-test, which runs hourly. A co-centric ring design inner ring reverses polarity to become speaker. The sensor has calibration memory, built-in temperature sensor, and an intrinsically safe design that is field replaceable without declassifying area.

Models and Accessories

Polytron 8900 UGLD (Ultrasonic Gas Leak Detector) and Polytron 8900 UGLD (Ultrasonic Gas Leak Detector with Remote Sensor)

Calibration Kit – for regular functionality checks

Field Survey Device – pre-installation background noise analysis

Commissioning Test Device – enables you to create leak simulations of up to 100 g/sec

Draeger Polysoft Software – facilitates configuration and readout of the Polytron 8900 UGLD

For more information on the Polytron 8900 UGLD, contact us at!

Schneider Electric Pressure Transmitter and the NSI OPA

November 4, 2020 | Product News

Need a flowmeter using differential pressure and an orifice plate, but don’t find it easy doing all of the necessary calculations and parts assembly?  Earlier this year we released our “OPA” product line, which featured a Foxboro IDP50S DP transmitter, a Lambda Square Orifice plate, and all of the necessary engineering know-how and parts to provide a total solution.  One recent customer just placed their second order, since they valued the fact that we could provide them all of the necessary process details and engineering for one turn-key solution.   

In case you missed it, here’s the video from our Technical Lead John Lamp, explaining the OPA series.  In addition, Foxboro just released a new video on the transmitter we chose! Here is their latest video showing why this Pressure Transmitter Series from Schneider Electric is the most unique on the market!

Watch this 2-minute video!


Draeger Flame 5000: Making Your Process Safer and More Efficient

August 17, 2020 | Product News

The Draeger Flame 5000 detects characteristic properties of flames on the basis of a live video signal. By using Draeger’s sophisticated digital signal processing and software algorithmics –  false alarms can practically be excluded and true flame emergencies can be detected from a safe distance. 

The Flame 5000 is easy to install using a mounting bracket of stainless steel. The swiveling mount allows for the device to always be aimed towards a potential source of fire. Detection of fires of 0.1 m2 at a distance of 44m within a horizontal visual field as of 90 degrees. The detector’s field of view is a rectangular pyramid shape and represents a radial projection of the sensing element, therefore giving it the greatest coverage area of any flame detector currently available.

The detector transmits live video signals, which can also transmit alarm and status signals to a controller and fire alarm system. A 0 to 20 mA signal or relay outputs are available for this purpose. Additionally, video recordings of the time period immediately before and after a detected fire can be saved, collected and retrieved by means of a digital memory card.

The Flame 5000’s visual technology allows for instant verification of a fire alarm without the operator having to enter a dangerous area. The device status is displayed by tricolor LED light at the front of the device so that the status of the device is always clearly visible for persons working close to it. Green means normal operating conditions, the yellow LED indicates a fault and the red LED turns on if flames are detected.

The device is available with aluminum or stainless-steel housing and can be employed worldwide due to its variety of approvals: ATEX, IECEx, FM and cFM.

The Neal Systems service team can install and service all aspects of this device, as well as provide you the best complete solution for flame detection.

For more information on how the Draeger Flame 5000 can increase your safety and efficiency, contact us here!

Contacting, Torodial, and Flow-Through Conductivity 

May 4, 2020 | Product News

You can improve process performance, reliability and reduce the cost of ownership by simply using the best in industry conductivity products. The conductivity products provided through Foxboro by Schneider Electric utilize established technologies to deliver patented solutions with capabilities that are exclusive to industry. 

There are three main conductivity products that Foxboro by Schneider Electric offers: Contacting, Torodial and Flow-Through.

Contacting Conductivity 

Contacting Conductivity measures conductivity using electrodes. Foxboro offers a family of contacting sensors for resistivity and low-level conductivity measurements. There are multiple mounting methods, including, threaded bushings, flanges, ball valve, and sanitary. 

High accuracy paired with universal bore mounting, selection of wetted materials, and compatibility with 875CR and 876CR makes these Contacting Conductivity products an optimal solution. 

Torodial Conductivity 

Torodial Conductivity uses an electrodeless conductivity sensor by using PEEK, Teflon, Polypropylene in either small or large bore designs and standard or high temperature. This product measures from single digit uS/cm to 2000 mS/cm and calibrated with precision calibration loop. 

The Torodial sensor hosts an integral automatic temperature compensation that is compatible with 876EC and 875EC. Like the Contacting Conductivity products, the toroidal has multiple mounting accessories, which ensures a perfect fit for your application. 

Flow-Through Conductivity  

The flow-through conductivity products are a family of noninvasive, flow-through and toroidal conductivity sensors for 875EC or 876EC. The flow-through conductivity offers an industrial and sanitary version with a variety of line sizes including a 0.5 inch, 1.0 inch, 1.5 inch, 2.0 inch, 3.0 inch and 4.0 inch. 

This family of products has a selection of process wetted materials and an in-line calibration with calibration plug. The flow-through conductivity installation process also eliminates bypass loops. 

These three options and the extensive knowledge of the Neal System’s team will allow for us to help you select the best product, mounting, and installation for your conductivity needs. For more information of any of the conductivity options, contact the one of our engineers here!

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