Table of contents GENERAL DESCRIPTION ......................3 TECHNICAL PARAMETERS ......................4 Measured and calculated values .................... 4 General ..........................5 Operation conditions ......................6 Dimensions ..........................7 OPERATION OF THE DEVICE ....................... 8 Switching ON and OFF the device ..................8 Displaying of actual measured values ..................
General description 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.
Technical parameters Measured and calculated values Temperature: -10 to +60 °C, internal sensor (INT) Measuring range: -30 to +105 °C, external sensor (EXT) 0.1 °C Resolution: ±0.4 °C Accuracy: Response time (EXT): t90 < 3 min with plastic sensor cover without filter t90 <...
General Power: Battery 9V or ac/dc adapter 12 V with NiMH accumulator 9V _____________________________________________________________________________________________________________________________________________________________ If instrument is supplied from external ac/dc adapter, internal 9V battery should be replaced with rechargeable NiMH accumulator. In usual operation from adapter accumulator is charged only with small current. If accumulator is totally discharged, its full charging in instrument takes approximately 100 hours.
Dimensions: 141 x 71 x 27 mm Weight: Approximately 150 g including battery without probe Operation conditions Ambient temperature operating range: -10 to +60 °C, device -30 to +105 °C, probe Ambient rel. humidity operating range: 5 to 95 %RH (no condensation), device 0 to 100 %RH, probe Temperature and rel.
Operation of the device Switching ON and OFF the device Connect external probe to the instrument before switching ON. The probe is calibrated with the instrument and it is not possible to replace it with another probe from another instrument. Switch ON the instrument pressing ON/OFF...
Press DISPLAY key to display pressure tendency (hPa), which is the difference between actual pressure and pressure before 3 hours. If the instrument is not switched ON at least 3 hours, pressure tendency is not available yet and symbol „--„ is display. Function HOLD (storing of actual measured values) and minimum a maximum memory Press HOLD key in the default mode (displaying of actual measured value) to store actual...
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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. Clearing of minimum and maximum memory of all values.
Correction of pressure reading to the sea level 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).
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Reading ALHI indicates adjusted upper limit of the same alarm (here air temperature). Set the desired value in the same way as in above lower limit. If needed it is possible to get back to lower limit setting of the same alarm by pressing DISPLAY key. Press ENTER key to confirm new upper limit.
Battery replacement Low battery voltage is indicated on the display with blinking reading "BAT". It is necessary to replace it with new one as soon as possible. Battery is located under small cover on the instrument lower side. It is absolutely necessary to replace battery with instrument switched OFF, otherwise setting of d.REF.
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