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SS-3 and SS-4 Sample Systems
Designed for high-pressure applications exceeding 100 barg, crucial for industries where condensation risk must be minimised to prevent bacterial growth and corrosion in systems.
The SS-3 and SS-4 are engineered to handle a maximum inlet pressure of 300 barg (4,350 psi), with the SS-3 designed to operate the sensor at atmospheric pressure, and the SS-4 at system pressure. They include comprehensive controls for pressure and flow, sample filtration to protect against particulates, an auxiliary inlet for additional sample streams or calibration gases, and an outlet for sample recovery or disposal.
Manufactured for durability and ease of use, these systems come fully assembled with a compact, modular design that can be mounted on panels or surfaces, with an optional weatherproof enclosure. The construction includes high-quality stainless steel pipework and fittings, and all internal electrical connections are securely wired to the main terminal block. Each major component is labelled, and a clear flow schematic is visible on the aluminium front panel.
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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.
Frequently Asked QuestionsIf you have a question that’s not answered below, please contact us
What maximum inlet pressure is supported by the SS-3 and SS-4 Sample Systems?
The SS-3 and SS-4 sample systems can support a maximum inlet pressure of up to 300 barg.
How does the transmitter or sensor operation differ between the SS-3 and SS-4 systems?
What are the key features of the SS-3 and SS-4 sample systems?
Can the SS-3 and SS-4 Sample Systems be installed in hazardous environments?
Are the SS-3 and SS-4 Sample Systems customisable to specific requirements?
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Moisture Systems
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Dewpoint Calculator for Trace Moisture Measurement
in Gases & Compressed Air