User Manual

18
5.2.5. INFLUENCE OF TEMPERATURE ON THE HUMIDITY MEASUREMENT
Relative humidity (%)
100
±5 ±5 ±5 ±4 ±4 ±3 ±4 ±4 ±4 ±4 ±4 ±4 ±4
90 ±5 ±5 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±4 ±4
±5 ±4 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±4 ±4
80 ±4 ±4 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3 ±3
±4 ±4 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3 ±3
70 ±4 ±4 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3 ±3
±4 ±4 ±3 ±3 ±2 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3
60 ±4 ±3 ±3 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2
±4 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2
50 ±4 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2
±4 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2
40 ±4 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±3
±4 ±3 ±3 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±3
30 ±4 ±3 ±3 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±2 ±3
±4 ±4 ±3 ±2 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3 ±3
20 ±4 ±4 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3 ±3
±5 ±4 ±4 ±3 ±2 ±2 ±2 ±3 ±3 ±3 ±3 ±3 ±4
10 ±8 ±5 ±5 ±4 ±3 ±2 ±3 ±4 ±4 ±4 ±4 ±4 ±4
±8 ±8 ±8 ±6 ±5 ±3 ±5 ±5 ±5 ±5 ±5 ±5 ±5
0
0 10 20 30 40 50 60
Temperature (°C)
The relative humidity is highly dependent on the temperature. To calibrate the instrument, the two sensors (the reference sensor
and the sensor of the instrument) must indicate the same temperature.
At each measurement, you must note both values: the temperature and the relative humidity. They are inseparable.
5.2.6. RESPONSE TIME
Typical response time with an air speed of 2m/s:
 Temperature: τ(66%) = 30s and τ(90%) = 90s.
 Relative humidity: τ(66%) = 60s and τ(90%) = 150s.
τ(66%): Response time to 66%
τ(90%): Response time to 90%
5.3. MEMORY
The size of the ash memory containing the records is 8 MB.
This capacity is sufcient to record a million measurements. At each measurement, the temperature, the humidity, and the dew
point are recorded, along with the date, the time, and the unit.
5.4. USB
Protocol: USB Mass Storage
Maximum transmission speed: 12 Mbit/s
Type B micro-USB connector
5.5. BLUETOOTH
Bluetooth 4.0 BLE
Range 10m typical and up to 30m in line of sight.
Output power: +0 to -23 dBm
Nominal sensitivity: -93 dBm
Maximum transfer rate: 10 kbits/s
Average consumption: 3.3 µA to 3.3 V