JUM ENGINEERING 108

- Very short response time.

- All components in contact with the sample are fully heated and precisely controlled at 190°C.

- Integrated air pressure pump and heated sample pump.

- Standard dilution ratio of 1:10.

- 1:100 dilution ratio available as an option.

- Standard 2μ sampling filter, permanently installed, to be cleaned by backflushing with hydrocarbon-free compressed air or nitrogen.

- The disposable, easy-to-change sampling filter, used in place of the optional backflush filter, offers a cost advantage of approximately 20%.

- Calibration valves for zero and span calibration. Standard manual switch and remote control, e.g., via PLC or PC.

- Large furnace temperature display with 0-5 VDC analogue output @ 10 mV/°C.

- Precision sample pressure regulator on the front panel for accurate and easy calibration.

- Fast response.

Applications:

Monitoring of high-concentration hydrocarbon emissions in flue gas under wet sampling conditions.

Verification of compliance with European and US-EPA methods for high-concentration raw hydrocarbons.

Heated sample diluter 108

Monitoring of high THC concentrations in raw exhaust gases prior to a catalytic or thermal combustion device.

Catalytic converter testing

Petrochemical plants.

Gas plants.

Cogeneration facilities.

Monitoring of VOC emissions from flare gases.

Utility boilers.

Refineries.

Waste-to-energy facilities.

Incinerators.

Gas turbines.

Technical specifications:

Method: Continuous injection of the sample into a steady stream of zero gas, instrument air, or ambient air.

Sample backflush filter: 2μm stainless steel mesh with low pressure drop.

Disposable sample filter: 2 μm low-pressure-drop fiberglass cartridge.

Heated sample pump: Diaphragm type, 2.5 L/min, stainless steel, Viton seals.

Compressed air pump: Diaphragm type, 2.5 L/min, POM, Viton seals.

Furnace temperature: 190°C.

Sample gas piping: Swagelok 316SS tubing and fittings.

Feed gas piping: PTFE and PA12 tubing and nickel-plated brass fittings.

Gas supply conditions: Zero and sensitivity adjustment gas: 1 bar, 0.1 MPa, 15 PSI

Purge air: 3.5 bar, 0.35 MPa, 51 PSI

Dilution gas: No pressure

Sample gas: No pressure

Supply voltage: 230 VAC/50 Hz, or 115 VAC/60 Hz.

Unit dimensions: Width: 483 mm (19"). Depth: 460 mm. Height: 132 mm.

Weight: 14 kg

The Model 108 heated sample diluter dilutes a high-concentration gas sample at a dilution ratio of 1:10 or 1:100 to enable linear measurement of total hydrocarbon concentrations ranging from several tens of thousands of ppm up to 10% and above. For a faster response and better scale and zero stability, sample injection is our method of choice in this heated sample diluter, which has proven its efficiency over

decades. Model 108 is also used to minimise the negative effects caused by high concentrations of interfering compounds, contamination and high-water content. Furthermore, it is possible to largely avoid memory effects, also known as hydrocarbon hold-up, caused by the condensation of heavy hydrocarbons and other condensed impurities in the gas sample.