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DS4000 Display
An advanced, panel mount, single channel display, engineered to seamlessly integrate with our range of online dewpoint transmitters, for continuous and precise trace moisture measurement in process gases, dry compressed air and dry rooms/chambers.
The DS4000 offers unparalleled adaptability and exceptional accuracy to ±2 °C (±3.6 °F) dewpoint. Its display can be user-configured to show dewpoint in °C or °F, ppm(V), ppb(V), ppm(W), g/m³ or lb/MMSCF, tailored to the specific needs of each application.
It provides comprehensive data management, including a linear 0-20 or 4-20 mA isolated retransmission signal and is user-configurable to input pressure for pressure dewpoint conversion — offering a solution that is as versatile as it is reliable.
Whatever the challenge — Alpha Moisture Systems has you covered.
- Highly customised solutions
- Trusted by industry leaders
- Distributors worldwide
- Over 30 years experience
Flexible, advanced moisture measurement
Key features
- Programmed with natural gas data for reference, the molecular weight of common gases for accurate ppm(w) measurement and can be user-customised for other gases
- Large five-digit primary LED display plus a secondary display for the selected unit, ensuring clarity and ease of monitoring
- User-friendly menu accessible by three lockable hotkeys, protecting against tampering
- Two programmable alarm relays with independent settings across the transmitter’s operating range, enhancing system safety and responsiveness
- Front panel protection rated at IP55/NEMA 12, safeguarding against dust and water ingress
- RS485 connection to communicate with a Windows PC/laptop for data interrogation using the software provided, with configurable address and baud rate
- Integrates with AMT, AMT-Ex and PDT dewpoint transmitters, providing comprehensive and precise moisture analysis
- Designed for installation in safe areas, with an optional Exd Flameproof Enclosure available for use in hazardous environments, ensuring versatility and safety across various industrial applications
- For flexible installation, the hygrometer can be sited up to 1000 metres away from the dewpoint transmitter
Technical Data
General | |
| Sensor/Transmitter Type | Display Only - Operational with 4-20mA Transmitters |
| Approvals | CE, UKCA |
| Documentation | Instruction manual |
Sensor | |
| Sensing Element | Remote 4-20mA signal from transmitter |
| Dewpoint Range | Dewpoint transmitter overall range offered between -120 °C to +20 °C (-184 °F to +68 °F) dewpoint |
| Resolution | 0.1 °C, 0.1 °F dewpoint or 0.1 ppm(v) |
Electrical | |
| Electromagnetic Compatibility (EMC) | Complies with BS EN IEC 61326-1 |
| Display | Red 7-segment 5-digit primary display and secondary units display |
| Display Dimensions | 14mm (0.71 inches) primary display, 7mm (0.3 inches) secondary display |
| Power Supply | 85 Vac - 264 Vac 50/60 Hz or 24 Vdc |
| Engineering Units | °C, °F, ppm(v), ppb, g/m³, Ib/MMSCF, ppm(w) |
| Output Signal | Linear 0-20/4-20 mA isolated retransmission signal |
| Alarms | 2 programmable alarm relays. Contacts rated 2 A @ 250 Vac / 1 A @ 24 Vdc |
| Alarm Relay Output/Contact Type | Single pole, changeover (SPCO) |
| Annunciators | Alarm 1 and Alarm 2 status LEDs |
| Lifetime | >100,000 operations at rated voltage/current |
| Power Consumption | AC 10 VA max, DC 4 VA max |
| Logging Software | Refer to the manual for full specifications |
Mechanical | |
| Dimensions in mm (H x W x D) | 72 x 144 x 108 |
| Weight | 470 g |
| Operating Temperature | -20 °C to +60 °C |
| Weatherproof Classification | Front panel only IP54 / NEMA 3S |
| Mechanical Warranty | 12 months in case of defective pats or faulty workmanship |
| Mounting | Panel-mount; press-fit fixing |
| Cut Out Dimensions (H x W) | 68 mm x 138 mm |
| Terminals | Plug-in Screw Terminal |
Downloads
What's in the box
DS4000 Display
DS4000 Manual
Applications
AerospaceFor the production of high-specification aeronautical parts, vacuum furnace heat treatment with dry argon is essential, and NADCAP mandates the testing of welding shield gas at the torch head for dryness. Our range of transmitters provides continuous trace moisture measurement, ensuring the feed gas for shielding stays within the required moisture content range, maintaining ideal conditions.
Breathing AirHigh moisture levels in breathing air, as used in diving, firefighting, and defence applications, pose health risks and discomfort. Moisture condensation from high humidity levels in compressed air can lead to blocked airlines or cylinder corrosion, with potentially fatal consequences. Our transmitters allow for the continuous monitoring of trace moisture throughout the pipe network.
Food and BeverageMoisture control is critical in the food and beverage industry to prevent food quality loss. Packaging foods in an atmosphere of dry gases like Nitrogen and carbon dioxide extends shelf life. Our AMT and AMT-Ex transmitters enable continuous trace moisture measurement, reducing waste and carbon footprint.
HDPE ProductionEthylene and propylene, key for manufacturing chemicals and plastics, require precise moisture content monitoring for polymerisation efficiency and catalyst yield. Our range of transmitters ensures process optimisation, product quality, and reduced maintenance costs by providing accurate and consistent trace moisture measurements.
Injection MouldingMoisture adsorbed on plastic pellets can lead to extrusion failures and quality degradation. Our transmitters measure trace moisture in the circulating air to detect possible dryer failures, enhancing process efficiency and reducing costs.
Medical GasesIn medical applications, compressed air and gases must be clean and almost sterile, free from contaminants including water vapour and bacteria. Our AMT and AMT-Ex transmitters offer permanent moisture monitoring in air/gas lines, which is essential for maintaining safe patient care environments.
Natural Gas and LNGThe liquefaction and regasification processes in natural gas supply are crucial for global energy distribution. Moisture presence poses risks of pipeline and valve freezing. Installing the AMT-Ex dewpoint transmitter ensures accurate trace moisture measurement, safeguarding gas quality and system integrity.
PharmaceuticalsIn pharmaceutical manufacturing, accurate moisture determination is crucial for product consistency and quality. Our range of transmitters provides fast, repeatable, and accurate online dewpoint control, essential for the control of blanketing gases.
Power GenerationEnergy production priorities include safety, cleanliness, and efficiency. Our range of online transmitters measures trace moisture, protecting equipment, reducing costs, and improving efficiency in power generation processes.
Welding GasesDifferent welding processes require specific inert gases for atmospheric shielding. Our AMT and AMT-Ex transmitters continuously measure moisture to ensure feed gas used for shielding remains within the specified range, maintaining optimal conditions for welding.
Frequently Asked QuestionsIf you have a question that’s not answered below, please contact us
Can I install the DS4000 Display in hazardous areas?
For use in hazardous areas, the DS4000 Display should be installed within our Exd Flameproof Enclosure and used alongside the intrinsically safe AMT-Ex dewpoint transmitter and a signal isolator. For further details, please contact us.
Can I purchase the DS4000 display separately?
Is the DS4000 display compatible with all dewpoint transmitters?
Can the DS4000 be set up for continuous data logging?
Can the DS4000 be factory-configured for faster installation into my application?
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Whatever the challenge,
you can rely on Alpha
Moisture Systems
If you require a customised trace moisture measurement solution, book a consultation with our expert technical team and find out how you can increase the efficiency and productivity of your operations.
Dewpoint Calculator for Trace Moisture Measurement
in Gases & Compressed Air