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Summary of Contents for Atal COMMETER C4141
- Page 1 COMMETER C4141 Digital thermo-hygro-barometer with external probe Instruction manual...
- Page 2 Manual for use of thermo-hygro-barometer COMMETER C4141 with external probe Instrument is designed for measurement of temperature, relative humidity, atmospheric pressure and pressure tendency. It enables to display the dew point temperature and atmospheric pressure corrected to the sea level. Measured values are displayed on a dual line LCD display.
- Page 3 Weight including battery: approximately 200 g Battery life depends on selected display refresh mode (see below). In FAST mode display is refreshed in shortest possible interval with highest current consumption. In dynamic mode display is refreshed in interval up to 5 s in case measured values remain stable. Refresh interval is shortened to approximately 0.7 s only if measured values change.
- Page 4 In this mode is instrument anytime after switching ON. It is possible to enter this mode from other modes by pressing or by repeating pressing of MENU key. If the probe is not connected properly or temperature is out of the range symbol “--“ is displayed. Temperature is displayed on the upper LCD line (°C EXT) and relative humidity in %RH is displayed on the lower LCD line.
- Page 5 Pressing the ENTER key enables to enter the mode of setting alarm limits for all quantities (see below). This item indicates if audio signaling of alarm indication is switched on (On) or switched off (OFF). Press ENTER key to change actual setting. Notice: if the battery voltage is low, audio indication is out of operation to reduce current consumption independently on this selection.
- Page 6 Select menu item Calc P (calculation of pressure) and press the ENTER key. The actual pressure reading is displayed (LCD upper line, hPa) and the value of correction constant is displayed on the LCD lower line (DIF). Use the arrow keys to set the appropriate value of adding constant. At the same time the actual pressure reading on the upper line is updated.
- Page 7 setting. Alarm activation of each value can be disabled by setting lower alarm limit of the desired value up to its maximum. This is indicated by OFF reading at the position of numeric value. Value of upper limit of the same alarm is indifferent.
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