The A Series Dew Point Transmitter is our mid-range sensor. It uses an Alumina-Oxide capacitor to measure dew point, pressure, temperature and pressure dew point of compressed air and inert gases (argon, carbon dioxide, carbon monoxide, helium, hydrogen, nitrogen and oxygen). The A Series Dew Point Transmitter is suitable for dew point ranges of -110°C to +20°C (-166°F to +68°F).
The sensor is available with an in-built display or without a display. The display option includes an alarm relay and allows you to adjust the dew point settings (gas type, measurement units, modbus and 4-20mA settings, etc).
Best suited to
- Compressed air and gas systems to 4 Mpa (600psi)
- Nitrogen Systems
- Membrane, drum, hybrid or desiccant dryers
- Dew point range of -100°C to +20°C (-148°F to +68°F)
- Temporary or permanent installation
Key features of the Dew Point Transmitter
Pressure Dew Point (PDP) Range
- -80°C to +20°C (-112°F to +68°F)
- -110°C to +20°C (-166°F to +68°F)
Gas Pressure Range
- Without integrated pressure sensor: 0 to 50 bar (725 psi)
- With integrated pressure sensor: 0 to 17 bar (242 psi)
Dryer Types
- Desiccant
- Membrane
- Drum
- Hybrid dryers
- Nitrogen systems
Gas Quality
- Minimal contaminates (ie minimal oil, particles or water vapour)
Accuracy
- Dew point measurements
-80°C to +20°C: ±2%
-100°C to -80°C: ±3% - Temperature measurements: ±0.5 °C
- Pressure @ 23°C (optional): ±0.3% FS
Measure
- Pressure dew point (PDP)
- Relative Humidity
- Temperature
- Optional – Pressure measurement (requires integrated pressure sensor).
Display
- Optional 1.5” LCD Touch screen
Output
- Modbus (RS485)
- 4-20mA
Power requirement
- 10 to 30 VDC, max 50 mA @ 24 VDC
Alarm
- Alarm relay only available for the sensor with touch screen display
Sensor Technology
- Alumina-Oxide sensor
Application
- Manufacturing and industrial use
- Non-explosive environments
- Temporary or permanent installation
Other Features
- Fast response time
Important
- A minimum flow rate of > 1L/min is required for the sensor to read accurately
- The sensor must be installed in an upright position, after the dryer.
- Incorrect wiring or installation can damage the sensor and void the warranty. If you aren’t sure how to install or wire the sensor, please contact us. Full installation and wiring instructions are available in the User Manual.
Dew Point Transmitter Pack
- Measurement Chamber with adjustable silencer and removable Nitto type quick connect
(contact us for other measurement chamber options) - M12 connector (data cable optional)
- Calibration certificate
- User Manual
- 12 month warranty
Options for the Dew Point Transmitter
- Dew Point Range
- Integrated pressure sensor
- In-built Display
- 5 meter data cable
- Gas Types: Air, Argon, Carbon Dioxide, Carbon Monoxide, Helium, Hydrogen, Nitrogen, Oxygen
- Contact us for other measurement chambers or cable lengths.
Warranty & Calibration
12 month warranty
Calibration is recommended every 2 years (provided the sensor is not exposed to relative humidity above 85%).
Annual calibration is required if the sensor is exposed to relative humidity above 85%.
Technical Documents
Accessories
Accessories such as mechanical and electrical fittings are available on the Accessories page.
Other information
Part Numbers:
- Standard Dew Point Sensor (no display): DEA010001, DEA020001, DEA110001, DEA120001, DEA010011, DEA020011, DEA110011, DEA120011
- Dew Point Sensor with Display: DEA011001, DEA021001, DEA111001, DEA121001, DEA011011, DEA021011, DEA111011, DEA121011
Please refer to our Terms and Conditions of Sale.
