Topinst-HVAC 3 Multifunction Dew Point Thermometer
Measures relative humidity (% RH) and ambient room temperature (°C / °F) / Calculates dew-point and wet-bulb temperatures (°C / °F) / Features hold and extreme value measurement functions

 

HVAC 3 is a multifunction dew point thermometer or diagnostic measuring device used for indoor climate and environmental monitoring. In addition to measuring relative humidity and ambient room / dry-bulb temperature, the meter calculates dew-point and wet-bulb temperatures in degrees Celsius (°C) and Fahrenheit (°F). Thus, heating, ventilation and air conditioning (HVAC) installations and HVAC system performance assessments are key applications of the PCE-HVAC 3 meter. Measurements of relative humidity and ambient room / dry-bulb temperature are made directly by built-in sensors. Dew-point and wet-bulb temperatures are calculated based on the measurement values transmitted ​​by the sensors.

Featuring a large, backlit display and six-button operation, the meter is both easy to read and easy to use. The meter is equipped to take one-time measurements on the spot as well as to monitor climate changes over time. The automatic shutdown function can be disabled when taking long-term measurements. There is also a thread on the back of the meter to allow the measuring instrument to be mounted on a tripod. The extreme value measurement function can be activated during long-term monitoring to determine the minimum or maximum values ​​over a desired period of time.

Multifunction Dew Point Thermometer HVAC 3

  • Relative humidity (RH) measuring range 0 ... 20% (Accuracy: ± 4% RH) 
    20 ... 40% (Accuracy: ± 3 % RH) 
    40 ... 60% (Accuracy: ± 2% RH) 
    60 ... 80% (Accuracy : ± 3% RH) 
    80 ... 100% (Accuracy: ± 4% RH)
    Ambient room / dry-bulb temperature measuring range -30 ... -20 °C / -22 ... -4 °F (Accuracy: ± 1.0 °C)
    -20 ... +60 °C / -4 ... 140 °F (Accuracy: ± 0.5 °C) 
    +60 ... +100 °C / 140 ... 212 °F (Accuracy: ± 1.0 °C)
    Relative humidity resolution 0.1%
    Ambient room / dry-bulb temperature resolution 0.1 °
    Measuring units Relative humidity (% RH)
    Ambient room / dry-bulb temperature (°C / °F) 
    Dew-point temperature (°C / °F)
    Wet-bulb temperature (°C / °F)
    Measuring parameters % RH, GPP (grains per pound), g / kg, 
    g / m³ (absolute), gr / ft³ (absolute)
    Display Dual LCD with backlight
    Response time < 15 seconds
    Type of sensor Humidity: Precise capacitance 
    Temperature: Thermistor
    Absolute humidity 0 ... 500 g / m³ 
    0 ... 218.5 gr / ft³
    Dew-point temperature measuring range -30 ... +100 °C / -22 ... 212 °F
    Wet-bulb temperature measuring range 0 ... +80 °C / 32 ... 176 °F
    Operating conditions 0 ... +50 °C / 32 ... 122 °F, < 80% RH (non-condensing)
    Storage conditions -40 ... +85 °C / -40 ... 185 °F, < 99% RH (non-condensing)
    Power supply 9 V block battery
    Battery life Approx. 48 hours
    Dimensions 300 x 75 x 50 mm / 11.81 x 2.96 x 1.97 in
    Weight 400 g / 0.89 lb

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