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DS1500 Display
A sophisticated, panel mount, single-channel display, designed to enhance continuous trace moisture measurement in various gases and dry compressed air systems — when used with a compatible dewpoint transmitter.
The DS1500 incorporates RS485 and MODBUS (RTU) capabilities to facilitate remote interrogation and comprehensive communication with the AMT, AMT-Ex and PDT dewpoint transmitters, for continuous trace moisture measurement across a range of applications.
Factory configured to user specifications, the DS1500 can display measurements in °C dewpoint, °F dewpoint, ppm(V), ppb(V), g/m³, or lb/MMSCF on a large, six-digit, red LED display, providing clear and immediate data readouts. It offers Process Variable (PV) retransmission in 0-20 or 4-20 mA 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
Digital precision for advanced moisture analysis
Key features
- Integrates with the AMT, AMT-Ex and PDT Dewpoint Transmitters, providing comprehensive and precise moisture analysis
- A selectable 0-20 mA or 4-20 mA isolated retransmission signal for flexible output options, enhancing system integration
- Four programmable alarm relays (2 x change over, 2 x normally open) for versatile and reliable monitoring, ensuring safety and operational efficiency
- RS485 MODBUS (RTU) serial communication for advanced data management and remote system interrogation, offering unparalleled control and monitoring capabilities
- Front keypad configuration, allowing for easy setup and adjustment of input type, alarm modes and special functions without the need for hardware changes, simplifying operation and maintenance
- 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 display 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 | |
| Dewpoint Range | Please see relevant dewpoint transmitter spec sheet |
| Accuracy | ±0.5% max of display value |
Electrical | |
| Electromagnetic Compatibility (EMC) | Complies with BS EN 61010-1 Certified to BS EN61326-1 |
| Display | Red 7-segment 6-digit primary display |
| Power Supply | 100 to 240 Vac/dc +/-10 %, 50/60 Hz Optional 24 V: 12-24 Vdc/24 Vac (-10%/+20%) |
| Output Signal | 0-20mA or 4-20mA linear in units selected |
| Alarms | 4 programmable alarm relays |
| Alarm Relay Output/Contact Type | RELAY OUTPUT 1 AND 2 Contact Type Single pole, changeover (SPDT) Rating 3 A resistive, 240 Vac, 50/60Hz (3 A / 30 Vdc Res.) RELAY OUTPUT 3 AND 4 Contact Type Single pole, changeover (SPST-NO:) Rating 1.5 A resistive, 250 Vac, 50/60Hz (3 A / 30 Vdc Res.) |
| Annunciators | Alarms 1 to 4 status LEDS |
| Load Impedance | 500Ω max |
| Serial Communications | MODBUS (RTU) |
| Power Consumption | 7.5 VA |
| Data Format | Number of databits: 8, without parity, and one stop bit |
| Physical Layer | RS485 |
| Maximum no. of Addresses | 247 |
| Baud Rate | Selectable – 1200, 2400, 4800, *9600, 19200, 38400 or 57600 bps. *Factory Default |
Mechanical | |
| Dimensions in mm (H x W x D) | 48 x 96 x 78.5 |
| Weight | 250 g |
| Operating Humidity (External) | Relative humidity - 0-90% non-condensing |
| Operating Temperature | +5 °C to +50 °C |
| Weatherproof Classification | Front panel only IP54 |
| Mechanical Warranty | 12 months in case of defective parts or faulty workmanship |
| Cut Out Dimensions (H x W) | 45 x 93 mm (+0.5 -0.0 mm) |
Downloads
What's in the box
DS1500 Display
DS1500 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
Is the DS1500 display compatible with all your transmitter and sensor ranges?
Does the DS1500 display have alarm functions?
Is the DS1500 display certified for use in hazardous areas?
Does the DS1500 have any communication protocol functions?
Can I integrate the DS1500 display into a sample system for continuous online measurements?
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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