Modbus Dew Point Sensor Monitor ANDTPWEXT-MD measures the relative humidity on pipes, cooling ceilings or other surfaces and transfers the value as a linear analog 4…20 mA output signal. The device also features a changeover contact for which the limiting value can be adjusted between 75 and 100 % r.h. with the help of a potentiometer. This way the respective signal can be transferred to the control/DDC when condensation is forming in order to activate the respective actuators.
Variations:
- dew point sensor on casing or connected to a flexible external silicon cable (2m)
- With or without LED display indicating measured values.
Alternative sensor versions:
- Standard Dew Point Monitor ANDTPW / ANDTPWEXT.
Product number
Product number: ANDTPWEXT-MD
Technical specification
| Power supply: | 20 … .34 VAC/VDC |
| Power input at 0…10V: | 20 mA |
| Power input at 4…20mA: | 24 … 44 mA |
| Electrical connection: | Screw clamp 1.5 mm² |
| Sensor: | Digital combination sensor for humidity and temperature |
| Measuring range for continuous output: | 0…100% r. h. |
| Measuring range for switching output (adjustable): | 85…95% r. h. |
| Load at analog output (0…10 V): | 10 … 100 kOhms |
| Analog output burden (4 … 20 mA): | 300 … 1000 Ohms |
| Switching output: | Potential free (changeover) 60 V / DC 1A |
| Housing:: | Material PA6, Colour RAL 9011 |
| Length supply cord: | 2.0 meters Silicone up to 180 °C |
| Measurements housing: | 75 x 69 x 44 mm |
| Cable inlet: | M16x1.5 |
| Protection class: | IP65 |
| Admissible ambient temperature: | -30…+70°C |
| Admissible ambient humidity: | max. 95 %, non-condensing |
| Optional: | E-Paper Display 1,44“, visible surface: 29 x 22 mm, Resolution: 128 x 96 Pixe |
Datasheet ANDTPWEXT-MD
Additional info for Modbus Dew Point Sensor ANDTPWEXT-MD
| Protocol: | Modbus (ASCII/RTU), RS485 |
| Power supply: | 12-34 VAC/VDC |
| Dimensions: | 75 x 69 x 44 mm |
| Housing: | PA6, Color RAL 9011 |
| Protection class: | IP65 |
| Sensor: | Dew Point Sensor |
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