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Summary of Contents for Comet Commeter D4141
- Page 1 Instruction manual Commeter D4141 Digital thermo-hygro-barometer with external probe...
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Page 2: Table Of Contents
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 .................. -
Page 3: General Description
General description Instrument is designed for measurement and data logging 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 4: Technical Parameters
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 <... -
Page 5: General
General Measuring interval and display reading refresh approximately: 0.7 s in FAST mode 0.7 to 5 s in dynamic mode Interval of refresh of pressure tendency display: 0.5 h Logging interval: 10 s to 24 h (in automatic logging mode) Total memory capacity: 1000 value sets manual logging mode... -
Page 6: Operation Conditions
Electromagnetic compatibility: Device conforms in accordance with EN 61326-1 these norms: Radiation: EN 55022 class B Immunity: EN 61000-4-2 (levels 4/8 kV, class A) EN 61000-4-3 (intensity of electromagnetic field 3 V/m, class B) EN 61000-4-4 (levels 1/0.5 kV, class A) EN 61000-4-6 (intensity of electromagnetic field 3 V/m, class B) EN 61000-4-11 (class A) -
Page 7: Dimensions
Storage temperature range: -10 to +60 °C Storage relative humidity range: 5 to 95 %RH Not allowed manipulation: • It is not allowed to touch the sensors under the cover to prevent damage the sensors • The sensors (under the cover) should not be exposed to direct contact with water or other liquids. -
Page 8: Operation Of The Device
Operation of the device Switching ON and OFF the device Connect the external probe to the connector before switching ON the instrument. Switch ON the instrument by pressing ON/OFF key. After switching ON the instrument all symbols on the LCD are displayed. If the ON/OFF key is being held pressed, all LCD symbols are displayed till the key is released. -
Page 9: Function Hold (Storing Of Actual Measured Values) And Minimum A Maximum Memory
Press DISPLAY key to display other readings - ambient temperature from internal sensor (°C INT) and the dew-point temperature calculated from external probe values (symbol DP). Press DISPLAY key to display other readings - atmospheric pressure in hPA on upper line and dew point temperature on lower line (°C DP). Press DISPLAY key to display pressure tendency (hPa), which is the difference between actual pressure and pressure before 3 hours. -
Page 10: Functions And Settings Available From Menu
Functions and settings available from menu Press MENU key to enter mode of viewing menu items one by one. Press arrow keys up and down to list all menu items. Press MENU key again to return to default mode (displaying of actual measured values). -
Page 11: Alarm Indication And Setting
Battery voltage of partially loaded battery is displayed. This value illustrates battery condition. Display refresh mode is indicated. In the FAST mode refreshment is fastest with regular interval approximately 0.7 s. In the dynamic refresh mode (DYN.) each 15 s refresh interval of display is doubled to maximum 5 s if measured values are stable. - Page 12 Reading ALLO indicates adjusted lower alarm limit (here air temperature). Set the desired value by means of the arrow keys. Press and hold the arrow key UP to make value increase fast. Press and hold the arrow key DOWN to make value decrease fast. Release the arrow key and press ENTER to confirm new limit.
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Page 13: Logging Mode
Logging mode In logging mode measured values are stored to instrument internal memory. Memory is non volatile, i.e. if battery voltage drops or battery is disconnected, stored data will not be lost. Device can work in two logging modes: Automatic mode – actual measured values are stored to memory in adjustable time interval. Storing of the first value is synchronized with internal real time clock, so the memorizing is performed at sharp multiples of minutes, hours and days. -
Page 14: Logging Start With Clearing Memory And Logging Mode Selection
Instrument offers the possibility to clearing the instrument memory (ERAS). If you do not wish to clear the memory before new logging start, confirm selection ERAS NO by pressing the ENTER key. Now instrument displays adjusted storing interval. To modify the storing interval use arrow keys. -
Page 15: Logging Stop From Keyboard
Clearing procedure is in progress. The duration is indicated by displaying of already cleared memory in % (digits 0 to 100). After memory is cleared it is possible to select one of three logging modes (MODE) by using arrow keys (non cyclic logging is indicated by symbol n.CYC, cyclic logging by symbol CYCL and manual logging by symbol Man). -
Page 16: Connection Of The Device To A Personal Computer
Connection of the device to a personal computer For connection of the instrument to a personal computer is designed the USB communication cable (included in delivery). During time instrument is connected to the computer, there is a reading PC on the LCD display and measurement nor logging is interrupted. Keyboard of the instrument is disabled with the exception of ON/OFF key. -
Page 17: The Pc Software For The Device
Visit www.cometsystem.com and click to link Programs. Download Program for dataloggers Comet to your computer. After running downloaded file logger.exe follow the Installator instruction. • Installation from installation CD: Insert installation CD to CD-ROM drive and wait for automatic Installator run. If Installator is not run automatically (depends on setting of operating system), find in file browser file CDSetup.exe in main directory of the installation CD and click to run. - Page 18 Viewing of measured values Measured values can be read directly from datalogger or from formerly created file on disk (command File - From disk, key F3). After reading a table of measured values occurs. Detailed information on file is available from context menu - menu occurs after clicking right mouse button on the position of table.
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Page 19: Battery Replacement
Battery replacement If battery voltage is low logging mode of the instrument is disabled. 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 internal time and setting of d.REF. -
Page 20: Technical Support And Service
Technical support and service Technical support and service is provided by distributor. Contact is included in warranty certificate. IE-COM-D4141-14...
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