PR-483 Precision Dew Point Meter

1. Measurement Index

(1) Dew Point Probe

Measuring range: -40～+90℃ (humidity measuring range: 0-100%RH, calibration range: 10-90%RH corresponding dew point range)

Accuracy: ±0.15℃

Resolution: 0.01℃

Repeatability: ±0.05℃

Sensitivity: ±0.01℃

(2) Temperature probe

Measuring range: -40～+90℃ (Calibration range: -10～+50℃)

Accuracy: ±0.10℃

Resolution: 0.01℃

Repeatability: ±0.05℃

Sensitivity: ±0.01℃

2. Instrument Host Specifications

Host working environment: -10～+50℃, 10%～95%RH

Output: Modbus RTU communication, USB communication

Sensor cable: 2.0 meters

Response time: Maximum cooling speed 0.8℃ /S + Time to establish balance (usually 15s)

Sampling air flow rate: 0.1～0.7Nl/min

Power supply: AC 100～220V 50Hz 35W or mobile power USB 5V 10W

Display: 5 inch color touch screen, Chinese and English interface optional, friendly and convenient man-machine operation

3. Measurable Display Units:

Ambient temperature

Dew point/frost point temperature

Relative humidity

Water activity

Specific humidity of humid air Unit: g/kg

Absolute humidity Unit: g/m3

Enthalpy value of humid air Unit: J/g

The current water vapor pressure unit in the air Unit: hpa

4. Product Features:

1. The whole machine supports mobile power supply, 5V 2A ;

2. The main screen interface records the maximum value MAX and minimum value MIN of each parameter measurement ;

3. Main screen interface with a time curve graph, which can display multiple parameter curves in real time, and can set the data recording interval time ;

4. The main screen interface displays three sets of parameters at the same time, and displays the maximum and minimum values of each parameter at the same time ;

5. The host with DBC mirror automatic cleaning function and automatic balance system ;

6. Split design for the host and probe, to avoid being influenced by the temperature and humidity environment fluctuations in the box of draw-out method ;

7. The host interface can be used for calibration and correction settings ;

8. The host can be connected to a computer to display and record real-time data and curves, and can query historical data and curves ;

9. Good stability and repeatability in long-term, The normal service life of the whole machine can reach more than ten years ;

10. The whole machine provides life-long maintenance service.