A03 Pipe Geo Unit

Definition

This function sets the unit for the flow meter’s tube size. The default unit is mm.

Notes

1. After executing this function, the setting for B06 (Tube Size Unit) will be automatically updated.

2. Each time the pipeline size is changed, perform Z03 Auto Initialize and Z04 Auto Zero Offset to ensure accurate flow readings and maintain stable product quality.

Operation 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.

Button functions may change depending on the operation context to improve usability or prevent accidental presses.

A03 Pipe Geo Unit Setting Steps
• From the main screen (green backlight), 
press Orange Button (Setup) to enter settings (orange backlight).
• Use Gray Arrow Buttons to select A. Measurement , press Orange Button (Enter).
• Use Gray Arrow Buttons to select A03 Pipe Geo Unit, press Orange Button (Enter).
• Use Gray Arrow Buttons to choose the options. 
• Press Orange Button (Set) to confirm.
• Press Blue Button (ESC) to return to the main screen (green backlight).

A03 Options, RS485 Values, Read/Write Commands, and Formats

Options	Description	RS-485 Value
mm (Default)	mm	0
inch	inch	1

Pipe Size Reference Table (Outer Diameter / Inner Diameter / Wall Thickness / Circumference)

The allowable input ranges for parameters A04 to A07 vary depending on the unit setting of A03 and the device model. If values for A04 to A07 are entered first and the unit setting of A03 is changed afterward, the system will automatically perform unit conversion.

For example, if A04 (pipe outer diameter) is entered as 1.0 in inch mode and A03 is later switched to mm, the displayed value of A04 will be automatically converted to 25.4.

1. Since the inner diameter is calculated from the outer diameter and wall thickness (ID = OD − 2 × thickness), all four parameters are interdependent. If an entered value causes any parameter to exceed its allowable range, the system will not permit the value to be saved.

2. All system values are calculated using float32 precision. As a result, displayed or calculated values may include non-integer numbers.

3. Millimeters (mm) are used as the base unit, while inches are provided as converted values (conversion reference: 1 inch = 25.4 mm).

4. If a value exceeds four decimal places, it will be truncated to four decimal places without rounding.

FU-ES015 (mm)

Parameter	預設值	最小值	最大值
A04 Pipe OD(Outer Diameter) 管路外徑	22	15	30
A05 Pipe Perimeter 管路圓周	69.08	47.1	94.2
A06 Pipe thickness 管路厚度	2.7	0.5	5
A07 Pipe ID(Inner Diameter)	16.6	5	29

FU-ES020 (mm)

Parameter	預設值	最小值	最大值
A04 Pipe OD(Outer Diameter) 管路外徑	26	18	35
A05 Pipe Perimeter 管路圓周	81.64	56.52	109.9
A06 Pipe thickness 管路厚度	2.7	0.8	5.5
A07 Pipe ID(Inner Diameter)	20.6	7	33.4

FU-ES025 (mm)

Parameter	預設值	最小值	最大值
A04 Pipe OD(Outer Diameter) 管路外徑	32	24	43
A05 Pipe Perimeter 管路圓周	100.48	75.36	135.02
A06 Pipe thickness 管路厚度	3.2	1	6
A07 Pipe ID(Inner Diameter)	25.6	12	41

FU-ES032 (mm)

Parameter	預設值	最小值	最大值
A04 Pipe OD(Outer Diameter) 管路外徑	38	30	53
A05 Pipe Perimeter 管路圓周	119.32	94.2	166.42
A06 Pipe thickness 管路厚度	3.2	1	6
A07 Pipe ID(Inner Diameter)	31.6	18	51

FU-ES040 (mm)

Parameter	預設值	最小值	最大值
A04 Pipe OD(Outer Diameter) 管路外徑	48	36	65
A05 Pipe Perimeter 管路圓周	150.72	113.04	204.1
A06 Pipe thickness 管路厚度	3.7	1	6.5
A07 Pipe ID(Inner Diameter)	40.6	23	63

FU-ES050 (mm)

Parameter	預設值	Minimum	最大值
A04 Pipe OD(Outer Diameter)	60	46	78
A05 Pipe Perimeter	188.4	144.44	244.92
A06 Pipe thickness	4.1	1	8
A07 Pipe ID(Inner Diameter)	51.8	30	76

FU-ES065 (mm)

Parameter	預設值	Minimum	最大值
A04 Pipe OD(Outer Diameter)	76	58	92
A05 Pipe Perimeter	238.64	182.12	288.88
A06 Pipe thickness	4.1	1.4	10
A07 Pipe ID(Inner Diameter)	67.8	38	89.2

FU-ES075 (mm)

Parameter	預設值	Minimum	最大值
A04 Pipe OD(Outer Diameter)	89	70	120
A05 Pipe Perimeter	279.46	219.8	376.8
A06 Pipe thickness	5.4	1.5	12
A07 Pipe ID(Inner Diameter)	78.2	46	117

A03 為 inch 模式時A04~A07參數輸入範圍

FU-ES015 (inch)

Parameter	預設值	Minimum	最大值
A04 Pipe OD(Outer Diameter)	0.866	0.591	1.181
A05 Pipe Perimeter	2.720	1.854	3.709
A06 Pipe thickness	0.106	0.02	0.197
A07 Pipe ID(Inner Diameter)	0.654	0.197	1.142

FU-ES020 (inch)

Parameter	預設值	Minimum	最大值
A04 Pipe OD(Outer Diameter)	1.024	0.709	1.378
A05 Pipe Perimeter	3.214	2.225	4.327
A06 Pipe thickness	0.106	0.031	0.217
A07 Pipe ID(Inner Diameter)	0.811	0.276	1.315

FU-ES025 (inch)

Parameter	Default	Minimum	Maximum
A04 Pipe OD(Outer Diameter)	1.260	0.945	1.693
A05 Pipe Perimeter	3.956	2.967	5.316
A06 Pipe thickness	0.126	0.039	0.236
A07 Pipe ID(Inner Diameter)	1.008	0.472	1.614

FU-ES032 (inch)

Parameter	Default	Minimum	Maximum
A04 Pipe OD(Outer Diameter)	1.496	1.181	2.087
A05 Pipe Perimeter	4.698	3.709	6.552
A06 Pipe thickness	0.126	0.039	0.236
A07 Pipe ID(Inner Diameter)	1.244	0.709	2.008

FU-ES040 (inch)

Parameter	Default	Minimum	Maximum
A04 Pipe OD(Outer Diameter)	1.890	1.417	2.559
A05 Pipe Perimeter	5.934	4.45	8.035
A06 Pipe thickness	0.146	0.039	0.256
A07 Pipe ID(Inner Diameter)	1.598	0.906	2.48

FU-ES050 (inch)

Parameter	Default	Minimum	Maximum
A04 Pipe OD(Outer Diameter)	2.362	1.811	3.071
A05 Pipe Perimeter	7.417	5.687	9.643
A06 Pipe thickness	0.161	0.039	0.315
A07 Pipe ID(Inner Diameter)	2.039	1.181	2.992

FU-ES065 (inch)

Parameter	Default	Minimum	Maximum
A04 Pipe OD(Outer Diameter)	2.992	2.283	3.622
A05 Pipe Perimeter	9.395	7.17	11.373
A06 Pipe thickness	0.161	0.055	0.394
A07 Pipe ID(Inner Diameter)	2.669	1.496	3.512

FU-ES075 (inch)

Parameter	Default	Minimum	Maximum
A04 Pipe OD(Outer Diameter)	3.504	2.756	4.724
A05 Pipe Perimeter	11.002	8.654	14.835
A06 Pipe thickness	0.213	0.059	0.472
A07 Pipe ID(Inner Diameter)	3.079	1.811	4.606

Refer to the Read/Write Memory List for the Modbus command format. This parameter uses the Int16 data format.