COMMETER - Thermometer Hygrometer Barometer and Data Logger

COMMETER - Thermometer Hygrometer Barometer and Data Logger Thermometers, hygrometers, barometers are designed for measurement and datalogging of temperature, relative humidity and atmospheric pressure into the internal non-volatile memory. Also barometric pressure tendency reading available. Free PC program enables to transfer recorded data via RS232 serial link to the computer for evaluation. Data logger is connected to the PC through included communication cable only for data trasfer from the memory. During connection with the PC no measurement and record is enabled. Advantages: * included traceable calibration certificate * dual line LCD display with special symbols * dew-point reading * barometric pressure tendency reading for last three hours * adjustable dual alarm with audio indication for each channel * memory of minimum and maximum values * function Hold - manual storing of actual values for later displaying COMMON TECHNICAL PARAMETERS Operating temperature range: -10 to +60°C Temperature sensor: RTD Ni1000/6180ppm Accuracy of temperature measurement with built-in sensor: ±0.4°C Accuracy of temperature input without probes - D3631 instrument: ±0.2°C from -50 to +100°C, ±0.2% from reading from 100 to 250°C Accuracy of air humidity measurement: ±2.5%RH from 5 to 95% at 23°C, resolution 0.1% Accuracy of dew point reading: ±0.5°C from 30 to 95%RH Accuracy of air pressure measurement: ±2hPa at 23°C, resolution 0.1hPa Barometric pressure tendency reading: in hPa - for last three hours Power: battery 9V Battery life: 4 months typically (barometer 2 months typically) Dimensions: 141 x 71 x 27mm Modes of data logging: 1. manual logging - capacity of 1000 stored value sets 2. automatic noncyclic logging (logging stops after filling the memory) - total capacity of 16000 values 3. automatic cyclic logging (logging continues after filling the memory - oldest values are being replaced by newest) - total capacity approx. 15200 values Real time clock: year, leap year, month, day, hour, minute, second PC interface: serial RS232 Sampling interval in data logging mode: 18 adjustable values from 10s to 24hours Warranty: two years