Research Article

Characteristics of Humidity-Temperature Changing in the Below-Grade Concrete Structure by Applying Waterproofing Materials on the Exterior Wall

Table 1

Specifications of the temperature and humidity sensor.

CategorySpecification

Temperature and humidity sensorMeasurement range (relative humidity)Relative humidity (RH) 0–100%
Measurement range (temp.)Temp. 0–100°C, −20–80°C
Accuracy at 23°C ±2% RH (10–99% RH)
Annual stability of relative humidity ±1% RH
Relative humidity response time10 s normally (up to 90%)
Selected signal output 0-1 VDC, 0–5 VDC, 0–10 VDC
Supply voltage14–35 VDC, 4.5–35 VDC, 14–26 VDC
SizeLength: 80 mm, 12 mm

Data logger (Agilent 34972A)Basic DCV accuracy0.004%/year
Maximum scanning250 channels/s