Power Supply

• 4 Alkaline LR6 AA/USB 5V
• Active power consumption approx. 400mW
• Battery life passive approx. 1 year
• Battery life active min. 24 hours
• Sensor power supply 5,5V ± 10% DC, max. 200mA

Storage Conditions

• Permitted ambient temperature: -20 … +60°C
• Permitted rel. humidity: < 90% r.h. non-condensing

Representation

• Definition of measured values: 2 decimal places

Calculated measurement categories for external temperature/ humidity sensors

Mathematical: MIN/MAX/AVG/HOLD

• Temperature [°C/°F]
• Rel. humidity (WMO/technical) [%]
• Abs. humidity [g/m³, gr/ft³]
• Saturation vapour pressure above ice/water [mbar, psi]
• Vapour partial pressure [mbar, psi]
• Dew / Frost point temperature [°C, °F]
• Wet-bulb / Ice-bulb temperature [°C, °F]
• Mixing ratio [g/kg, gr/lb, ppm]
• Volume fraction of water vapour [%, ppm]
• Specific humidity [g/kg, gr/lb, ppm]
• Saturation ratio [g/kg, gr/lb, ppm]
• Specific enthalpy [kJ/kg, Btu/lb]
• air density [kg/m3, lb/ft3]

Compatibility

• Sensor/probe: all SDI/digital sensors (temperature, humidity, airflow), air pressure integrated

Display

• Touch screen, capacitive
• TFT, Resolution 240 x 320 pixels
• 65k colors, Piezoresistive technology
• Degree of hardness: 7, scratch-resistant

Dimensions & Weight

• HxWxD: 170 x 62 x 34 mm
• 205 g

Integrated data storage

• Up to 200 gauges taking approx. 1 mill. values

USB

• Connection to SmartGraph3 software via included USB cable

Operating conditions

• Permitted rel. humidity: < 90% r.h. (20g/m³ ) non-condensing
• Permitted altitude above sea level: 4,000m

Integrated air pressure sensor

• Measuring range (full accuracy): 800 … 1,100mbar
• Accuracy at 25°C, 1013,25mbar: 0,5mbar
• Long-term stability: type. -1mbar/year
• Measurement resolution: 0,024mbar
• Measuring principle: Piezoresistive

Calculated measurement categories for external airflow sensors

• Flow units [m/s, fpm]
• Operating airflow volume: [m³/(s; min; h), ft³/(s; min; h)]
• Standard airflow volume: [m³/(s; min; h), ft³/(s; min; h)]
  • after DIN 1343 (0°C; 1013,25 mbar)
  • after DIN 2533 (15°C; 1013,25 mbar)
  • after DIN 1945 (20°C; 1 bar)