Advanced sampling of process gases

Key features

Designed to accommodate sample inlet pressures up to 300 barg (4,350 psi)
Includes auxiliary inlet for a second sample stream or calibration gas injection and an outlet for sample recovery or disposal
Provides continuous dewpoint measurements
Suitable for venting to the atmosphere or returning to the process
Particulate filtration effective to 99.99% at 0.6 microns
Flow control and indication from 0-5 litres per minute (0-10.6 SCFH)
Suitable for panel or surface mounting, with an optional weatherproof enclosure for hazardous environments
Compatible with AMT dewpoint transmitters and sensors
Configurable measurement units including °C or °F for dewpoint and absolute values in ppm(V), ppm(w), mg/m³, or lb/MMSCF
Compatible with DS1200-AMT, Model 6020, and DS4000-AMT; displays can be installed in a control room up to 1000m from the transmitter

Technical Data

General
Sensor/Transmitter Type	Operational with 4-20mA Transmitters or sensor
Documentation	Instruction manual
Sensor
Dewpoint Range	Dewpoint range set by range of chosen transmitter
Approvals	CE, UKCA
Sample Flow Rate	Flow Meter: 0 - 5 litres per minute (0-10.6 SCFH)
Mechanical
Dimensions in mm (H x W x D)	350 x 345 x 150 approx
Weight	Approx 9kg (20 pounds)
Operating Pressure	Pressure Regulator: Up to 300bar (4,350 PSI) maximum
Fittings	Sensor Holder Fittings: 1/8”, 1/4” and 6mm
Mechanical Warranty	12 months in case of defective parts or faulty workmanship
Pipework	Stainless steel

Downloads

Information coming soon.

What's in the box

SS-3 or SS-4 Sample System

SS-3 and SS-4 User Manual

Calibration Certificate

Applications

AerospaceProduction of extremely high-specification aeronautical parts can require vacuum furnace heat treatment using very dry argon. NADCAP standards also specify testing welding shield gas at the torch head to ensure dryness. Continuous measurement of trace moisture ensures that the feed gas used for shielding remains within the specified moisture content range, allowing operators to maintain ideal conditions.

Breathing AirHigh levels of moisture in breathing air make it uncomfortable to breathe and pose a potential health risk due to the increased risk of bacteria. High humidity levels in compressed air for breathing apparatus pose a higher risk of moisture condensing, causing blocked airlines or corroding cylinders. Continuous monitoring of trace moisture is therefore necessary throughout the pipe network.

Food and BeverageIncorrect levels of moisture in foodstuffs can lead to loss of food quality. The shelf life of foods packaged in plastic can be extended by replacing ambient air with very dry gases such as Nitrogen and carbon dioxide between the foil layer and the food. The continuous measurement of trace moisture can significantly reduce waste and carbon footprint.

HDPE ProductionEthylene and propylene are perhaps the two most important compounds used in industry today, acting as building blocks for manufacturing a wide range of chemicals and plastics. Accurate and consistent measurement of trace moisture will help with process optimisation, prove gas product quality and polymerisation yield, and reduce corrosion in pipelines and maintenance costs.

Injection MouldingMoisture adsorbed on the surface of plastic pellets that feed injection moulders can cause extrusion failures, decreasing the strength of the product and affecting its surface finish, colour and opacity. Dry air circulates through the pellets, removing moisture, and ensuring they are dry. Increase process efficiency and decrease costs by measuring trace moisture to detect any failure of the dryer.

Medical GasesThe compressed air and gases used for patient care in medical applications need to be clean and almost sterile. Contaminants can be harmful to the health of patients if they are not controlled. Condensation in gas systems may result in interference with critical apparatus, leading to corrosion. The warm temperatures in hospitals, coupled with high humidity risk bacterial growth. HTM02, the Health Technical Memorandum, recommends that “all medical gas supplies should be continuously monitored for dew point or moisture content” in the air/gas line.

PharmaceuticalsExcessive or deficient moisture content can impact the physical properties of a pharmaceutical product, affecting the product’s chemical reactivity, binding properties and shelf life. Moisture content fluctuates from batch to batch, so a reliable method is required to determine accurate moisture content and achieve consistency. The trace moisture measurement instrument must be fast, repeatable and accurate for continuous online dewpoint control of blanketing gases.

Welding GasesWelding takes place in an atmosphere shielded by inert gases and different welding jobs require various inert gases. Monitoring oxygen levels is key to producing high output and superior weld seams. By continuously measuring moisture, the feed gas used for shielding remains within the specified moisture content range, allowing operators to maintain ideal conditions for welding.

Speciality GasesBottled gases certified for use as “calibration gases” must often specify the trace moisture content along with other contaminants. Therefore, suppliers and users need accurate measurements of this moisture level so that much less of the valuable product is expended in the test process.