Related Manuals for Comet Commeter D0221
Summary of Contents for Comet Commeter D0221
- Page 1 Instruction manual Commeter D0221 Dual channel thermometer and datalogger for RTD Pt1000 and Ni1000/6180ppm probes...
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Page 2: Table Of Contents
Table of contents GENERAL DESCRIPTION ......................3 TECHNICAL PARAMETERS ......................4 Parameters of measurement ....................4 General ..........................4 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 logging of temperature from two RTD Pt1000 or Ni1000/6180ppm external probes with the possibility to display the temperature difference between channels. Measured values are displayed on a dual line LCD display and it is possible to store values into the non volatile memory. -
Page 4: Technical Parameters
Technical parameters Parameters of measurement The device with RTD Pt1000/3850 probes: -200 to +500 °C (with the limitation according to the used probe) Measuring range: 0.1 °C from -99.9 to +500 °C Resolution: 1 °C below -100 °C ± (0.45 + 0,004 x I t I) °C from -100 to +500 °C Accuracy: ±... - Page 5 Total memory capacity: 1000 stored temperature sets manual logging mode 8124 values for each channel automatic noncyclic logging mode 7644 values for each channel automatic cyclic logging mode ______________________________________________________________________________________________________________________________________________________________ The above specified numbers are maximum possible. Capacity is slightly lower if logging was interrupted by communication with computer, by stopping logging or switching OFF the instrument.
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Page 6: Operation Conditions
Display: Backlit two-line LCD ______________________________________________________________________________________________________________________________________________________________ Backlighting turns off automatically 10 seconds after the last keystroke Protection: IP20 Dimensions: 146 x 71 x 27 mm Weight: Approximately 150 g including battery without probe Operation conditions Ambient temperature operating range: -30 to +65 °C Ambient rel. -
Page 7: Dimensions
Dimensions IE-COM-D0221-05... -
Page 8: Operation Of The Device
Operation of the device Switching ON and OFF the device Connect the two external probes to the connectors T1, T2 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. -
Page 9: Function Hold (Storing Of Actual Measured Values) And Minimum A Maximum Memory
Temperature T1 of channel 1 is displayed on the upper LCD line in °C, temperature T2 of channel 2 is displayed on the lower LCD line in °C. Press DISPLAY key to display the difference of temperature between channels (T dif = T1 - T2) on the LCD lower line (marked by DIF). The difference is displayed only if both temperature probes are connected. - Page 10 First selection is START/STOP logging. There are two possibilities: if logging is stopped, logging start is offered (symbol Strt = START), if logging is in progress already, logging stop is offered (reading STOP). Press ENTER key to confirm one of two possibilities. Notice: if battery voltage is low it is not possible to start logging.
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Page 11: Alarm Indication And Setting
Actual selected sensor type is displayed - symbols ni for sensor Ni1000/6180ppm or Pt for sensor Pt1000/3850ppm. If setting of the instrument does not match the connected RTD probe type, displayed temperature readings are not correct. It is necessary to set instrument for connected probe type from the PC program. - Page 12 Reading ALLO indicates adjusted lower alarm limit. 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. -
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-D0221-05...
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