Maintenance - Hach HQ440d Manuel D'utilisation De Base

3. Turn on the meter.
4. Push the key.
5. Select Send Data Log. Wait for the display to show "Transfer Complete" and for any lights on the
USB storage device to stop flashing. Then remove the USB device.
Note: If the data transfer is slow, reformat the USB storage device to use the file allocation table (FAT) format
for the next use.
Send data directly to a computer
Data can be transferred from any HQd series meter directly to a computer when the HQ40d PC
Application is installed. The data can be sent in real time during data collection, or the entire data log
can be transferred.
To download the most current version of the software, refer to the applicable product page on the
manufacturer's website.
1. Install the HQ40d PC Application on the computer.
2. Turn off the meter. Make sure that the meter is connected to AC power.
3. Connect the PC to the meter with a USB type B cable.
4. Turn on the meter.
5. Open the HQ40d PC Application on the computer. Click on the green triangle in the menu bar to
start a connection.
6. Collect the data in real time or transfer the data from the data log:
• Real time—when a data point is stored in the meter, the result is sent simultaneously to the PC
Application.
Additional information is available on the manufacturer's website.
• Data log—push the
Complete." The data is sent as a comma separated values (.csv) file.
The data is shown in the HQ40d PC Application window.

Maintenance

Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
Clean the meter
The meter is designed to be maintenance-free and does not require regular cleaning for normal
operation. Exterior surfaces of the meter may be cleaned as necessary.
1. Wipe the surface of the meter with a damp cloth.
2. Use a cotton-tipped applicator to clean or dry the connectors.
Replace the batteries
Explosion hazard. Incorrect battery installation can cause the release of explosive gases. Be sure that the
batteries are of the same approved chemical type and are inserted in the correct orientation. Do not mix new and
used batteries.
For battery replacement, refer to
key and select Send Data Log. Wait for the display to show "Transfer
C A U T I O N
W A R N I N G
Figure 10.
English 15