Delta OHM HD21ABE Manual
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Contents
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- -133.1 “►/UNIT” KEY FOR THE UNIT OF MEASUREMENTIt allows navigation through the menus. During normal operation, it changes the unit ofmeasurement of the main quantity (solo HD21ABE17).If the main quantity is Relative Humidity (solo HD21ABE17), by repeatedly pressing the UNITkey you can display the following quantities:RH Relative Humidity (%)Td Dew Point (°C - °F)AH Absolute Humidity (g/m3)r Mixing Ratio (g/kg)Tw Wet Bulb Temperature (°C - °F)H Enthalpy (kJ/kg)If the main quantity is Temperature (solo HD21ABE17), by repeatedly pressing the UNIT key youcan display the temperature in °C (Celsius degrees) or °F (Fahrenheit degrees).3.2 THE MAXIMUM, MINIMUM AND AVERAGE VALUES OF THE CAPTURED QUANTITIESBy pressing the ◄/FUNC key you can display the maximum, minimum, average (AVG) or averagein 1 minute (AVG 1min) values of the measured quantities.To reset the statistical data (except for AVG 1min function) press the ◄/FUNC key until the“Reset? Yes No” message appears. Select Yes using the ▲▼keys, and confirm with ENTER.Once selected, for example max, all displayed quantities indicate the maximum value. The AVGaverage is calculated on the first five minutes of samples, and then on the current average.THE AVERAGE IN 1 MINUTE FUNCTIONBy pressing the ◄/FUNC key you can select the AVG 1min (Average in 1 minute) function:Function: AVG 1minREADY 00:00:60Carbon DioxideCO 2600ppmCO 0 ppmPatm 1000 hPaRH 25.0 %T 17.0 °CIf the function is selected, the " READY 00:00:60 " indication on the LCD blinks to prompt theuser to start the 1 minute average calculation of the acquired values.To start the calculation, press the ENTER key. The " RUNNING " indication and a countdown willappear on the display. During calculation, the instrument continuously emits one short beep persecond. |
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