DIGITEN DFC15 Flowmeter Controller User Manual

1. Introduction

The DIGITEN DFC15 is a versatile digital flowmeter controller designed for precise measurement and quantitative control of liquid flow rate and volume. It features a clear LCD display, adjustable accuracy, and temperature monitoring capabilities, making it suitable for various applications including water metering.

This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your DFC15 controller to ensure optimal performance and longevity.

2. Key Features

• Quantitative Control: Automatically shuts off the solenoid valve when the desired flow volume is reached.
• Flow Rate Monitoring: Displays real-time liquid volume passing per minute.
• Universal Compatibility: Works with various hall effect flow sensors by adjusting the K value.
• Volume Unit Selection: Displays measurements in Liters or Gallons.
• Water Meter Functionality: Can be used to measure total water volume.
• Adjustable Accuracy: Calibrate accuracy via the K parameter.
• Temperature Monitor: Includes a temperature sensor for liquid temperature measurement.
• Easy-to-Read LCD: Clear display of total volume, flow rate, and temperature with custom icons for status indication.

3. Technical Specifications

4. Package Contents

Upon opening the package, please verify that all components are present and undamaged:

• 1 x DFC15 Controller
• 1 x Power Adapter
• 1 x Instruction Manual (this document)

Image: Contents of the DFC15 package, showing the controller, power adapter, and associated cables/sensors.

5. Setup and Installation

Proper installation is crucial for the accurate and safe operation of the DFC15 controller. Follow these steps carefully:

5.1. Component Identification

Image: Front view of the DFC15 controller, highlighting the display and control buttons.

Familiarize yourself with the controller's interface:

• Display: Shows quantitative value, flow rate, temperature, and status icons.
• MENU Button: Accesses settings and configuration options.
• SET Button: Confirms selections and enters edit mode.
• CLEAR Button: Clears current readings or exits a menu.
• Up/Down Arrows: Navigate menus and adjust values.
• RUN/STOP Button: Initiates or halts the flow control process.
• RUN/STOP Indicators: LEDs indicating operational status.

5.2. Wiring Diagram

The DFC15 controller connects to a flow sensor, a temperature sensor, and an optional solenoid valve. Refer to the diagram below for correct wiring:

Image: Detailed wiring diagram showing connections for the DFC15 controller, flow sensor, temperature sensor, and solenoid valve.

1. Connect the flow sensor to the designated input on the controller. Ensure the flow direction matches the sensor's arrow.
2. Connect the temperature sensor to its dedicated port. The M8 thread sensor should be installed in a suitable fitting in the liquid path.
3. If using quantitative control, connect the 12VDC solenoid valve to the controller's output terminals. Observe polarity.
4. Connect the provided 12VDC power adapter to the controller's power input.

Note: Ensure all connections are secure before applying power.

5.3. Mounting the Controller

The controller can be mounted using the integrated eyelet on the back. Choose a location that is dry, stable, and allows for easy viewing of the display and access to buttons.

Image: Rear view of the DFC15 controller, showing the label with model and power information, and the mounting eyelet.

6. Operating Instructions

6.1. Power On and Initial Display

Once powered on, the DFC15 will display the current total volume, real-time flow rate, and temperature. The default units are Liters (L) and Liters Per Minute (LPM).

Image: Angled view of the DFC15 controller, showing the illuminated digital display with various readings.

6.2. Setting Quantitative Control (Batch Mode)

1. Press the MENU button to enter the settings menu.
2. Navigate using the Up/Down arrows to find the "Quantitative Setting" or similar option.
3. Press SET to enter the quantitative value adjustment.
4. Use the Up/Down arrows to set your desired volume (e.g., 50 Liters). Press SET to confirm each digit.
5. Once the value is set, press MENU to exit the setting.
6. To start the quantitative dispense, press the RUN/STOP button. The controller will activate the solenoid valve and stop when the set volume is reached.
7. To stop a dispense manually, press the RUN/STOP button again.

6.3. Adjusting K-Value (Calibration)

The K-value is a calibration factor that allows the controller to accurately measure flow from different sensors. This value may need adjustment for precise readings.

1. Press the MENU button.
2. Navigate to the "K-Value Setting" or "Calibration" option.
3. Press SET to adjust the K-value.
4. Use the Up/Down arrows to change the value. A higher K-value means the sensor is reporting more pulses per unit of volume.
5. To calibrate, dispense a known volume of liquid (e.g., 10 liters) and compare it to the controller's reading. Adjust the K-value until the controller's reading matches the actual dispensed volume.
6. Press SET to confirm the new K-value, then MENU to exit.

Tip: Start with the default K-value or a value provided with your flow sensor. Fine-tune as needed.

6.4. Changing Units (Liters/Gallons, Celsius/Fahrenheit)

The DFC15 allows you to switch between different measurement units.

• Volume/Flow Rate Units: Access the "Unit Setting" in the MENU to toggle between Liters (L) and Gallons (G) for total volume and LPM/GPM for flow rate.
• Temperature Units: The temperature display can be switched between Celsius (°C) and Fahrenheit (°F) via a setting in the MENU.

6.5. Resetting Total Volume

To clear the accumulated total volume, press the CLEAR button. Confirm the reset if prompted.

7. Maintenance

Regular maintenance ensures the longevity and accuracy of your DFC15 controller and associated sensors.

• Cleaning: Wipe the controller's display and casing with a soft, dry cloth. Avoid abrasive cleaners or solvents.
• Sensor Inspection: Periodically check the flow sensor and temperature sensor for any debris, blockages, or damage. Clean as necessary according to the sensor manufacturer's instructions.
• Connection Check: Ensure all electrical connections remain secure and free from corrosion.
• Recalibration: If you suspect inaccuracies or after significant changes in your system (e.g., replacing a sensor), perform a K-value recalibration as described in Section 6.3.
• Storage: If storing the unit for an extended period, disconnect power and store in a dry, cool environment.

8. Troubleshooting

This section addresses common issues you might encounter with your DFC15 controller.

If the problem persists after attempting these solutions, please contact DIGITEN customer support.

9. Warranty and Support

DIGITEN provides a one-year warranty for any problems with the DFC15 controller. For technical support, warranty claims, or further assistance, please contact DIGITEN customer service through the official channels where you purchased the product or visit the DIGITEN Store on Amazon.

You can also refer to the official User Manual (PDF) for more detailed information.