1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GRYVOZE GV-DTFM-IN1 Digital Turbine Fuel Flow Meter. Please read this manual thoroughly before use to ensure proper function and safety.
2. Safety Instructions
- The flow meter is not waterproof. It is suitable for dry, sheltered environments only. Keep away from rain, humidity, and condensation. Do not immerse the device in liquid.
- The product features an aluminum alloy casing. If installing in a copper pipe environment, consider potential long-term issues due to dissimilar metals.
- Ensure the liquid flow rate is within the specified range (2.6-26 GPM / 10-100 LPM) to maintain accuracy.
- The device features a battery level indicator. Replace batteries promptly when the icon appears.
- The product is calibrated at the factory. On-site calibration methods are provided in the full product manual for fine-tuning.
3. Product Overview
The GRYVOZE Digital Turbine Flow Meter is designed for accurate measurement of various liquids including water, diesel, gas oil, gasoline, kerosene, methanol, and E15. It features a clear LCD display and versatile unit options.
A front view of the GRYVOZE Digital Turbine Fuel Flow Meter, showing its digital display and the included 3/4 inch NPT adapters. The meter has a metallic body and a clear plastic cover over the display.
A detailed diagram highlighting the components of the GRYVOZE Digital Turbine Flow Meter, including the Liquid Flow Direction Sign, Set/Query Key (Calibrate), Clear Key (Display), Single Cumulative Flow, Unit, and Total Cumulative Flow on the LCD screen.
4. Installation
4.1 Flow Direction
The flow meter must be installed according to the liquid flow direction indicated by the arrow on the meter's body.
An illustration demonstrating the correct installation of the flow meter, emphasizing that the liquid flow must match the arrow direction on the meter. It shows a pipe with an elbow leading into the meter.
4.2 Flexible Display Orientation
For flexible installation and viewing, the display panel can be rotated 180 degrees by simply removing the screws that secure it.
An image showing the GRYVOZE flow meter installed on a pipe, with an inset demonstrating how the display panel can be rotated 180 degrees for optimal viewing by unscrewing and reattaching it.
4.3 Adapters
The meter comes with 3/4 inch NPT adapters for versatile connection options.
4.4 Environmental Considerations
Install the meter in a dry environment, away from direct exposure to rain, humidity, or condensation.
4.5 Electromagnetic Interference
The flow meter is equipped with an anti-electromagnetic interference function, allowing it to be installed in proximity to pumps or motors. If using a flow meter without this feature, it should be installed as far away as possible from such equipment to prevent inaccurate readings caused by magnetic induction.
An image showing the GRYVOZE flow meter installed within an industrial piping system, with text emphasizing its anti-electromagnetic interference function, which allows for installation near pumps or motors without affecting accuracy.
5. Operation
5.1 Digital LCD Display
The clear LCD screen provides real-time data:
- Instantaneous Flow: Shows the current flow rate.
- Single Cumulative Flow: Tracks the flow for a single operation (resettable).
- Total Cumulative Flow: Records the overall accumulated flow (non-resettable).
A close-up view of the GRYVOZE flow meter's LCD display, clearly showing the instantaneous flow rate (e.g., 8.956 L) and the total cumulative flow (e.g., 00020.4 L TOTAL).
5.2 Unit Switching
The meter supports five different measurement units: Gallons (GAL), Quarts (QTS), Pints (PTS), Liters (L), and Cubic Meters (m³).
- Simultaneously press and hold both the "CALIBRATE" (red) and "DISPLAY" (white) buttons for more than 5 seconds to enter the metering unit setting mode. The current unit will flash.
- Press the "DISPLAY" (white) button to cycle through the available units (m³, Qts, Pts, L, Gal (US)).
- Once the desired unit is flashing, long press the "CALIBRATE" (red) button for 3 seconds to save the selection and exit the setting mode.
An infographic illustrating the five selectable measurement units for the GRYVOZE flow meter: Gallons (GAL), Quarts (QTS), Pints (PTS), Liters (L), and Cubic Meters (m³).
5.3 Auto Turn-Off and Energy Saving
The display screen will automatically turn off after 10 minutes of inactivity to conserve battery life. It will automatically turn on when liquid flow is detected or by pressing any key. The standby time is over 1 year.
An image illustrating the auto turn-off feature of the GRYVOZE flow meter, showing the display turning off after 10 minutes of inactivity and reactivating upon liquid flow or button press. It also shows a low battery indicator.
6. Maintenance
6.1 Battery Replacement
The flow meter uses 2 x AAA LRO3 batteries. The memory is non-volatile, ensuring data is retained during battery replacement. A battery icon will appear on the display when the battery is low.
A close-up image of the GRYVOZE flow meter's internal PCB circuit board, showing the battery compartment with 2 x AAA LRO3 batteries. A warning states that the PCB circuit board is not waterproof.
6.2 Cleaning
Due to the non-waterproof nature of the device, clean the exterior with a dry or slightly damp cloth. Do not use excessive moisture or immerse the device.
7. Troubleshooting
7.1 Inaccurate Readings
- Flow Rate: Ensure the liquid flow rate is within the specified range of 2.6-26 GPM (10-100 LPM).
- Installation Direction: Verify the meter is installed correctly with the liquid flow matching the arrow on the device.
- Calibration: If readings are consistently off, consider performing on-site calibration as detailed in the full product manual.
7.2 Display Not Working
- Battery Level: Check the battery icon on the display. If low, replace the 2 x AAA LRO3 batteries.
- Activity: The display automatically turns off after 10 minutes of inactivity. It should reactivate with liquid flow or by pressing any button.
7.3 Leaks
- Connections: Ensure all NPT thread connections are properly sealed and tightened.
- Casing Integrity: Inspect the meter's casing for any damage or cracks.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | GV-DTFM-IN1 |
| Accuracy | ±1% |
| Flow Range | 2.6-26 GPM (10-100 LPM) |
| Working Pressure | 6 Bar |
| Working Temperature | -10°C to 80°C (14-176°F) |
| Display | Digital LCD |
| Units | GAL (US Gallons), QTS, PTS, L, m³ |
| Single Count Range | 99999 |
| Total Cumulative Count Range | 29999999 |
| Materials | Aluminum alloy casing, stainless steel turbine |
| Power Source | 2 x AAA LRO3 batteries |
| Auto Turn-Off | After 10 minutes of inactivity |
| Product Dimensions | 11.8 x 5.5 x 6.2 cm |
| Product Weight | 430 g |
9. Contact and Support
For further assistance, technical support, or warranty information, please refer to the contact details provided with your product packaging or visit the official GRYVOZE website.
