Leiderdorp Instruments LI-19 Manual Download | Manualshive

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LI-19

read-out unit

&

datalogger

with

µV

sensitivity

v 5.1

1
2
3
...
»

Summary of Contents for LI-19

Page 1: ...LI 19 read out unit datalogger with µV sensitivity v 5 1 ...

Page 2: ...perature range 10 40 C Storage temperature range 20 60 C Relative humidity 95 RH non condensing Input circuit 2 MΩ 680 nF Input low pass filter 5 Hz Input connectors 2 x 4mm banana plug Display LCD 4 digits with sign Decimal dot position programmable 8888 or 888 8 or 88 88 or 8 888 Display update At least 1 per second Computer interface USB 1 1 2 0 low speed Supply current 2 mA Batteries 2 AA penl...

Page 3: ...tall two fresh batteries Notice the polarization Replace the bottom cover and connect the sensor The LI 19 is now ready for use Switch the LI 19 on with the push button switch on the top To prevent that the LI 19 is switched off while logging the on off switched is mounted so that the button has to be pressed quite deep to switch the LI 19 on or off You can feel it and hear it when the switch togg...

Page 4: ...n that case the optional interface cable and the software give you access to the data logging functions only Main window After installation the software can be started from the Start menu The main window allows you to open a previously stored file with logged data LI 19 window All other functions related to the LI 19 are available in special windows that will open once you connect an LI 19 to the ...

Page 5: ...rogramming the sensor sensitivity The software is used to program the sensor sensitivity into the LI 19 If the LI 19 came bundled with a sensor your supplier may already have programmed the sensitivity of this sensor into the LI 19 If that is the case the software you received may not have this option Wizard You can use the built in wizard to determine optimal settings for the LI 19 depending on t...

Page 6: ...the sensor settings the required LI 19 setup is determined in the following steps 1 Go to the Sensor settings page The full range output voltage of the sensor should be less than or equal to the full scale input voltage of the LI 19 The full range output voltage is used to select the maximum input stage amplification factor of the LI 19 in the software In the box that says Input amplifier you can ...

Page 7: ...lifier to give the required range Select the Sensor settings page The full scale output of the sensor is 4 56 μV W m2 x 1100 W m2 5 016 mV This should fit the selected range so select an amplification of 32x that gives an input range of 6 25 mV From the table you can see that this range gives you 6250 counts Step 2 Determine the display reading Enter the figure that the LI 19 should display at ful...

Page 8: ...low 1 second on one second off rate Logging Once the initial delay has elapsed the initial delay can be 0 the first logging interval is started The LI 19 is now actually logging and the l on the LCD flashes rapidly second on second off Logged values During a logging interval the LI 19 accumulates minimum input value maximum input value and average input value Once the logging interval has elapsed ...

Page 9: ... the data from the logger memory is collected it will be presented in a chart The Y scale can be manually set and you can also use the mouse to zoom in on a specific area of the chart Drag the mouse pointer from the top left corner of the area of interest to the bottom right corner of the area of interest When the mouse is released the chart will zoom in on the selected area ...

Page 10: ...to top left to zoom out again Save the data in a logger data file or export the data in a text format that can be imported in a spreadsheet Use the Copy button to place the chart on the clipboard ready to be pasted into a word document ...

Page 11: ......

Page 12: ...Leiderdorp Instruments Dijkgravenlaan 17 NL 2352 RN Leiderdorp The Netherlands Phone 31 71 5415514 Fax 31 71 5418980 e mail info leiderdorpinstruments nl www leiderdorpinstruments nl ...

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