Hach CD300, Руководство пользователя

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Option Description
Analog Output Select the analog output 1 or 2 and set the parameters that follow:
• Active: on
• Select the parameter
• Minimum Value (4 mA): Sets the measurement that gives 4 mA at the analog output.
• Maximum Value (20 mA): Sets the measurement that gives 20 mA at the analog
output.
To test the analog output, push Test now .
Network
Settings Sets the network settings.
• Hostname
• Operating mode
• IP address
• Subnet mask
Maintenance
Service mode
Enable Service mode before maintenance tasks and inspections are done. When the Service mode
is enabled, the relay valve and buzzer are deactivated, cleaning stops and measurements data is not
saved.
Enable Service mode before the connections, sensors, cables or the compressed air system are
examined.
1. Select Options in the main menu then push Service mode .
Note: The controller automatically disables Service mode after 1 hour.
2. To examine the analog outputs, select Analog Outputs and set a fixed output current on one of
the outputs. The value can be directly measured at the related analog output.
Note: The fixed output current is deactivated when the user exits Service mode.
Cleaning the controller
D A N G E R
Always remove power from the controller before performing maintenance activities.
Note: Never use flammable or corrosive solvents to clean any part of the controller. Use of these solvents may
degrade the environmental protection of the unit and may void the warranty.
1. Make sure the controller cover is securely closed.
2. Wipe the controller exterior with a cloth dampened with water, or with a mixture of water and mild
detergent.
SD card replacement
To update the firmware, replace the Micro SD card. Order a new Micro SD card by the manufacturer.
Replace the Micro SC card as follows:
1. Remove power to the instrument.
2. Open the controller cover. Refer to Open the controller cover on page 10.
3. Replace the Micro SD card. Refer to Figure 9 .
4. Close the controller cover.
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