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.
