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Comde Derenda Environmental Equipment & Supplies
8 equipment items found
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
Transmitter for monitoring gas density in SF6 gas-insulated high-voltage systems; The gas density transmitter GDS continuously monitors the pressure and temperature of the insulating gas SF6. For this purpose it possesses a piezoresistive pressure sensor and an evaluation unit with microprocessor. The measured values can be transmitted to a PC or the customer’s own diagnostic ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
Hybrid density monitor for SF6 gas-insulated high-voltage circuit breakers; The Densistat D56Hybrid is suitable for indoor and outdoor use. It incorporates an analog gauge for relative pressure, referenced to 20 °C. The measured values are also provided as a data output signal. Microswitches inside the device respond reliably to any decreases in the density and pressure of the SF6 insulating ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
Climate-controlled automatic weighing system with RFID technology for the gravimetric assessment of sampling filters. The automatic weighing system AWS-1RE provides a precise filter conditioning and weighs up to 750 filters in an automated process. Integrated RFID technology identifies and tracks the filters during the entire process. If a PC is connected, the weighing results are recorded in a ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
Transmitter for monitoring the gas density and dew point in SF6 gas-insulated high-voltage systems; The GD-DP continuously monitors both the density and temperature of the insulating gas SF6 and the dew point. For this purpose it possesses a piezoresistive pressure sensor, a polymer dew point sensor, and an evaluation unit with microprocessor. The measured values can be transmitted to a PC or a ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
Sampling inlets for SPM samplers, sampling systems and real-time monitoring devices. All Comde-Derenda sampling inlets, also known as sampling heads, have been designed and tested specifically for use with our sampling and monitoring systems. They are suitable for measuring various substances, including particulate matter (PM10, PM2.5, PM1 and TSP) and numerous volatile organic compounds ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
The low and medium volume samplers LVS and MVS collect fine particulate matter on sampling filters according to EN 12341:2014 (PM10 and PM2.5). For this purpose, a vacuum pump draws in ambient air, and the sampler fractionates the airborne fine particles in a sampling inlet. The air containing the desired fine particulate fraction then passes through the filter, where the particles are collected ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
The PNS T-DM combines a low / medium volume sampler (LVS or MVS) and a filter changer in a stainless steel cabinet. It collects fine particulate matter on sampling filters according to EN 12341:2014 (PM10 and PM2.5). For this purpose, a vacuum pump draws in ambient air, and the system fractionates the airborne particles in a sampling inlet. The air containing the desired fine particulate fraction ...
Manufactured by:Comde-Derenda GmbH based inStahnsdorf, GERMANY
The method applied by the APM-2 uses the light scattered by tiny particles (nephelometry) to determine the PM10 or PM2.5 concentration in the ambient air directly and continuously. After performing a qualification test, TÜV Rheinland certified the procedure as equivalent to the customary gravimetric method. The system features an impactor inlet for fractionating the particulate matter, and a ...