Parameter Settings
Setup Procedure
Button Functions (Click to Expand)
When the main screen is displayed in green backlight, the four buttons function as follows:
Blue Button (leftmost): Return, exit, or save settings.
Gray Direction Buttons:
Left Gray: Previous Page, decrease value, or select item
Right Gray: Next Page, increase value, or select item
Orange Button (rightmost): Rightmost button: Enter settings, edit, or confirm selection
Do not hold buttons for extended periods to avoid damage.
Language Settings
The default language is English. The unit supports English, Traditional Chinese, and Simplified Chinese. To change the language, go to H04 Language.
H04 Language Setting Steps
- From the main screen (green backlight),
press Orange Button (Setup) to enter settings (orange backlight).
- Use Gray Arrow Buttons to select H.System, press Orange Button (Enter).
- Select H04 Language, press Orange Button (Enter).
- Choose language, press Orange Button (Set) to confirm.
- Press Blue Button (ESC) to return to main screen.
Pipe Setting
Easy Setup: Z02 Auto Pipe Spec
Using patented sensing technology, the Z02 measures the pipe dimensions and automatically selects the closest matching pipe specification from the internal database.
If the measured size does not match any standard specification (e.g., due to pipe deformation or an unsupported pipe type), the system will apply a default pipe specification as the pipe size setting. See A02 for reference.
Due to tolerances or other factors, the matching result may be incorrect, which can affect measurement accuracy. Always verify the result after running Z02.
The default A02 setting is CNS UPVC. If you are using a metal pipe or any non-UPVC pipe material, verify and update A02 after running Z02 to ensure accurate measurement.
Z02 Auto Pipe Spec Setting Steps
• From the main screen (green backlight),
press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select Z. Easy Setup, press Orange Button (Enter).
• Use Gray Arrow Buttons to select Z02 Auto Pipe Spec, press Orange Button (Enter).
• Press Right Gray Button to start Auto Pipe Spec.
• Press Blue Button (ESC) to return to the main screen (green backlight).
If your pipe is not listed in the database, or if the pipe size does not match correctly after using Z02, configure the pipe settings manually instead (refer to below)
Manual Pipe Setting Steps (Click to Expand)
Complete settings in order: A02, A04, A06, A08.
A02 Present Pipe Spec
Select the pipe spec according to the installed pipeline. If no match is available, choose Custom and set outer diameter, wall thickness, and material in A04, A06, and A08. If a standard spec is chosen, these values will be applied automatically. Specifications may vary by model; please refer to A02 Present Pipe Spec.
A04 Pipe Outer Diameter
Set the pipe outer diameter by adjusting each digit individually. Press Left Gray Button to increase a digit and Right Gray Button to decrease it. After setting a digit, press Orange Button (Set) to confirm before adjusting the next digit. Please refer to A04 Pipe Outer Diameter.
A06 Pipe Thickness
Set the pipe wall thickness. Each digit can be adjusted individually. Use Left Gray Button to increase and Right Gray Button to decrease each digit. Please refer to A06 Pipe thickness
A08 Pipe Material
Set the pipe material. If no matching option is available, select custom. Please refer to A08 Pipe Material.
custom（default） 、PE、PFA、Copper、SUS316、SUS304、Steel、ABS、PVDF、PP、PVC、PVCU
Fluid Sound Velocity Setting
After completing the pipe settings, ensure the pipe is fully filled and run Z03 Auto Initialize. The flowmeter will automatically detect the ultrasonic sound velocity of the measured fluid and configure the operating parameters accordingly. Refer to: Z03 Auto Initialize.
Z03 must be executed with the「Pipe Fully Filled」(whether the fluid is flowing or stationary does not affect the result.) Running it when not full will cause measurement errors and value fluctuations. If this happens, re-run Z03 under full-pipe conditions.
Z03 Auto Initialize Setting Steps
- From the main screen (green backlight),
press Orange Button (Setup) to enter settings (orange backlight).
- Use Gray Arrow Buttons to select Z.Easy Setup, press Orange Button (Enter).
- Use Gray Arrow Buttons to select Z03 Auto Initialize,
press Orange Button (Enter).
- Press the right gray Start button to begin automatic initialization.
- After completion, press Blue Button (ESC) to return to the main screen
(green backlight).
If Z03 cannot complete successfully, or if you need to enter a known fluid sound velocity value directly, configure this settings manually instead (refer to below)
Main Screen Status Check
After setup, return to the main screen. If settings are correct, the flow rate will be displayed. Check the flow signal indicator at the lower-left corner:
1 bar: Poor signal quality
< 1 bar: Possible air bubbles or interference; "Noisy" may appear
If the signal is low, adjust the sensor installation according to the mounting guidelines and check whether the signal improves.
Troubleshooting
If any of the following issues occur during installation or setup, adjust the system as instructed.
1. Rapid Fluctuating Readings
If flow readings fluctuate rapidly, adjust A15 Damping to reduce data swings. The default damping value is 3; higher values reduce fluctuations. Set according to desired measurement stability and response speed. Refer to A15 Damping.
2. No Zero at Zero Flow
Go to A18 Low Flow Cutoff to configure forced zero.
Purpose:
Prevents false flow readings caused by signal drift at zero flow.
Parameter Description:
A18 = 0 (default): Shows all very low flows; suitable for applications requiring detection of tiny flow.
A18 = X (user-defined): Forces the reading to zero when flow < X.
Recommended Setting:
For non-low-flow applications, set an appropriate cutoff value to improve zero stability and prevent flow display during stoppage.
Refer to model-specific lower limit suggestions below.
Recommended Lower Limit
1.5 LPM
2 LPM
3 LPM
5 LPM
8 LPM
13 LPM
22 LPM
30 LPM
Refer to A18 Low Flow Cutoff.
3. Incorrect Positive/Negative Sign Display
If the flowmeter shows the wrong sign, adjust the detection direction in A16 Direction. Refer to A16 Direction.
4. Unit Adjustment
To change the display unit, go to B Unit. Refer to B Unit.
Advanced Calibration Settings
Refer to the full parameter table for detailed settings. See: Full Parameter Reference.
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