Measurement Computing LGR-5320 Series - Manual (Page 10)

LGR-5320 Series User's Guide Installing a LGR-5320 Series Device
10
Setting up a device in USB mode
Complete the following steps to set up a LGR-5320 Series device in USB mode:
1. Connect the 9 VDC, 1 A external power supply to the external power connector (see Figure 4 on page 12),
and plug the adapter into an electrical outlet.
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2. If the device is configured for Autostart new log upon device powerup in DAQLog, press the Start
button on the device to stop logging before connecting the USB cable to your computer.
3. Turn the computer on, and connect a USB cable from the USB connector on the device (see Figure 4 on
page 12) to either a USB port on the computer or an external USB hub connected to the computer.
4. When you connect a LGR-5320 Series device for the first time, a Found New Hardware message opens as
the device is detected. When the message closes, the installation is complete.
In USB mode, the buttons on the logger are disabled, and the device cannot read from or write to an installed
SD card. Access to the SD card can only be made over the USB connection.
Use DAQLog software to configure the device directly or to create a file with device configuration settings.
Refer to the DAQLog Help and DAQLog Software User's Guide for instruction about using DAQLog to
configure a LGR-5320 Series device.
Setting up a device in Logging mode
Complete the following steps to set up a LGR-5320 Series device in Logging mode:
1. Insert the SD card with the settings file into the card slot on the device, and disconnect the USB cable from
the device.
2. Either connect the device to an electrical outlet (refer to step 1 under Setting up a device in USB mode
above), or connect the PWR+ terminal to the positive lead of your power source, and the PWR– terminal to
the negative lead of the power source. Use a power source that meets the power specifications of the LGR-
5320 Series.
3. Connect the LGR-5320 Series device screw terminals to their signal source.
4. Press LOAD on the device to load the settings file to the device if required.
5. Press START on the device to begin logging data.
6. When the LOG LED turns off, the device is done logging.
Replacing the internal 3 V lithium cell battery
LGR-5320 Series devices include a 3 V lithium cell battery that retains the real-time clock value when the
device is powered off. If you get incorrect year readings from a device, you may need to replace this battery.
Caution! The discharge of static electricity can damage some electronic components. Before removing the
LGR-5320 Series device from its housing, ground yourself using a wrist strap or touch the
computer chassis or other grounded object to eliminate any stored static charge.
Complete the following steps to replace the internal 3 V lithium cell battery in a LGR-5320 Series device:
1. Turn the device over and rest the top of the housing on a flat, stable surface.
2. Remove the five screws from the bottom of the device.
3. Hold both the top and bottom sections together, turn the device over and rest it on the surface, and then
carefully remove the top section of the case to expose the circuit board.
4. Lift the clip holding the cell battery in the battery compartment and remove the old battery from the
compartment.
1 Providing power to a LGR-5320 Series device before connecting its USB cable to the computer allows the device to inform
the host computer (when the USB cable is connected) that the device requires minimal power from the USB port.