Stimmen - 2, Durchschnittliche Bewertung: 4 ( )

Hersteller: Extech Instruments Dateigröße: 791.96 kb Dateiname: 42265_75_SW276_UM.pdf Unterrichtssprache:

When the mouse button is released, the cursor snaps to the nearest data point. Offset Knob Use the Offset control in the DISPLAY CONTROL field (lower right) to optimize the data viewing area. Press the up or down arrow key to increment or decrement the record number (with corresponding date) in the graph. 5 V7.1 1/08 Zoom and Pan on Graphs To zoom in, press the key and click the left mouse button over the desired point; release the key after the mouse button is pressed. The view resolution increases until the mouse button is released. To zoom out, click the right mouse button. To pan, press the keys and click the left mouse button over the desired point, and then drag the mouse to another point. The graph view scrolls so that the original point now appears under the new mouse cursor location. Drag the mouse anywhere on the screen. To restore the view to its original state (after zooming or panning), press and hold the left mouse button and drag the line on the Offset or Range knob (located in the DISPLAY CONTROLS section). Horizontal Axis select switch Use the mouse to control the switch and select Record number or Time (HH:MM:SS) label for the horizontal axis of the graph. Warning message A warning message will appear on the lower left if the Datalogger is disconnected from the PC. << WARNING: Data Logger not plugged into interface module! >> Display Control After downloading or retrieving a record, the numbers on the "Offset" and "Range" knobs will change to: Offset: 0000/5000/10000/15000 Range: 50/250/500/1K/2K/4K/8K/12K/16K Save File To save a transferred data file Click on SAVE FILE, select a folder, and name the data file. 6 V7.1 1/08 Retrieve File Click on RETRIEVE FILE to retrieve a previously saved file. To aid in reading a graph, a grid can be drawn on the graph. A dialogue box at the bottom left hand corner shows the grid (CONTROL LOCATION Cursor 1 and 2) After retrieving a file containing Humidity records, the labels "Temperature" and "Humidity" will appear at the beginning of the curves. If no Humidity data is transferred, only the Temperature curve will appear. The date and time of the first point appears on the left hand corner. The last point’s date and time appears on the right hand corner. MAIN SCREEN 7 V7.1 1/08 Com Port Setup Select "Com. Set". Select the COM port, Baud rate (9600), Data bits (8), Parity (None) and Stop bits (1). Select OK to accept settings, press Cancel to abort and exit. 8 V7.1 1/08 Datalogger Settings Press LOGGER to access the menu page Sample Rate Setup Number of Data Points Select the desired number of data samples to log: 1000 / 2000 / 4000/ 8000 / 12000 / 16000. Scroll up or down to located the value and then click OK to save. For example, to select 1,000 samples, the logger will stop logging (and will power off) when 1000 data points have been collected. Datalogging ceases when the datalogger is full. The yellow LED will stop flashing when datalogging ceases. Sample Rate Select the sampling rate in seconds (1 second to 12 hours). Scroll up to increase the time or down to decrease the time in seconds. The defaults sample rate is 2 seconds. Start Modes Scheduled Start Scheduled Start sets the desired datalogging Start Date and Start Time. The datalogger will start when the clock reaches the user programmed time and date. Ensure that the datalogger is set to the current date and time. Magnetic Start Connect the datalogger to the PC to begin configuring the Magnetic start mode. Select Magnetic and ensure that the datalogger is set to the current date and time. Enter the desired ID (if any) and then press "OK" to confirm the Magnetic start setting. To start datalogging in Magnetic mode, pass a strongly magnetized object by the bottom of the datalogger. The LED will start flashing. Flashing rate depends on the sampling rate programmed. Immediate Start The datalogger starts recording when the “OK” button is pressed. 9 V7.1 1/08 Start Mode Setup Datalogger Clock Setting Click OK to set logger to PC system time. Alarm Setting The default High Alarm temperature is 85 C The default Low Alarm temperature is -40 C The default High Alarm for Relative Humidity is 100% The default Low Alarm Relative Humidity is 0% Select the desired High value or Low value by scrolling up or down. The ALM LED flashes: a. If the measured Temperature is higher than the HI Alarm setting or lower than the LO Alarm setting. b. Every second while the data is transferring to the PC. c. Once every datalogging interval. For example, if the sampling rate is set to 3 seconds, the ALM LED will flash every 3 seconds. 10 V7.1 1/08 Unit Setting Temperature can be displayed in "C" or "F" Data Logger ID Setting The datalogger's ID setting allows the user to provide a unique name for each datalogger (up to 8-digits). Sleep Mode Setting In Sleep Mode the Datalogger turns the display off after Datalogging has been completed. Select the Sleep Mode in software by moving the slide switch t...

Herunterladen

Geben Sie zwei Ziffern: