FP-AS310 Paddle wheel Flow Meter Lite Version

The FP-AS paddlewheel flow meter features patented AxleSense technology, RoHS compliant with the functions of detects paddle loss and preventing zero-flow issues. For FP-AS310 Lite version, Two communication standard versions are available: A version: 4-20mA, switch signal (NPN); R version: Modbus RTU (RS485).

Pipe size：	DN15-65 (½" to 2-½")
Fluid temperature：	0~50°C (32~122°F)
	> 50 °, please choose PPH, PVDF, SS316
Applicable fluid：	Clear water, oil or
	chemicals with less impurities
Measure accuracy：	±2.5% OR
Waterproof level：	IP66
Power demand：	DC 24V, 200 mA (Excluding Communication current)
Displayed Flow Rate：	Instantaneous Flow Rate
Input/Output：	A version : Analog output 10bit 4-20mA / NPN
	R version : Modbus RTU RS485

File download

Inquire now

Paddle Wheel Flow Meter

Paddle wheel flow meter measure flow by using fluid to drive the rotation of blades, with the rotational speed proportional to the flow rate. Suitable for measuring low-viscosity liquids like water, oil, and chemicals, these meters are characterized by moderate accuracy, quick response, and easy installation and maintenance. Due to direct contact with the liquid, regular cleaning and inspection are required.

Real-Time Smart Detection

Provides clear paddle anomaly alerts, essential for Industry 4.0 integration. It quickly resolves flow issues by syncing with factory management systems. Built-in magnetic sensing checks paddlewheel magnet strength, ensuring consistent flow accuracy through regular monitoring and scheduled replacements.

LORRIC's precision-turned pipe fittings, crafted from extruded rod material, ensure consistent sizing and a flawless inner surface, minimizing flow disturbances for precise measurements. Stronger than injection-molded alternatives, they eliminate flash, short shots, and weld lines, offering superior durability and long-term reliability.

Traditional plastic injection molding often creates uneven inner surfaces and wave-like patterns in tee fittings due to compression-induced shrinkage, leading to inconsistent cross-sections, unstable flow, and inaccurate calculations. Injection-molded fittings also suffer from flash, short shots, and weak weld lines, compromising durability. In contrast, LORRIC's tee fittings use advanced manufacturing for a smoother, more reliable performance.

Screen can be switched according to vertical or horizontal piping

Adjust the viewing direction of the screen according to the piping direction, which is convenient for flow monitoring in different piping situations.
Learn more: How to Install Paddle Wheel Flow Meter

Pulse 2.0 Technology

Traditional pulse output uses a fixed K-factor across the entire range, leading to errors. For example, a conventional DN15 paddlewheel flow meter outputs one signal per 90-degree rotation, always using a K-factor of 106.55 pulses per liter, regardless of flow speed. LORRIC’s exclusive Pulse 2.0 technology, powered by AxleSense, dynamically calculates flow and enables pulse output as precise as one pulse per 0.01L, eliminating errors from fixed K-factors and ensuring superior accuracy.

FP-P Series Specification

Specification

		FP-P015	FP-P020	FP-P025	FP-P032	FP-P040	FP-P050	FP-P065
Installation Method		in-line
Applicable Diameter	mm	DN 15	DN 20	DN 25	DN 32	DN 40	DN 50	DN 65
Applicable Diameter	inch	1/2" NPS	3/4" NPS	1" NPS	1-1/4" NPS	1-1/2" NPS	2" NPS	2-1/2" NPS
T-connector material		UPVC / PPH / PVDF (Made to order) / 316L Stainless Steel
Paddle material		PVDF or PPH with embedded magnet + ceramic bearing and shaft
Applicable fluid		Various fluid with less impurities (<1%)
Applicable fluid maximum dynamic viscosity		300cSt *
Fluid in pipes temperature		UPVC : 0~50°C (32~122°F) / PPH : 0~90°C / PVDF: -15~100°C / ss316L: -20~100°C **
Device working environment temperature		-10~60°C (14~140°F)
Velocity range		± 0.3~10m/s ***
Flow range	LPM	4 - 120.6	7 - 188.5	9 - 294.5 (Stainless Steel: 7-294.5)	19 - 452.9	28 - 754.0	50 - 1225.7	95 - 2179.0
Flow range	GPM	1.05 - 31.85	1.84 - 49.79	2.32 - 80.81 (Stainless Steel: 1.8-77.79)	5.01 - 119.64	7.39 - 190.36	13.20 - 323.79	25.09 - 575.6
Language		English, Traditional Chinese
Unit		Metric: Liter, cubic meters, meters Time: second, minute, hour, day Imperial: foot, Cubic foot, Uk gallon, US gallon
Display		16x3 3-Color Backlight 10-Digit LCD display
Display update cycle		1s
Measurement accuracy		±2.5% OR ****
Linearity		± 0.5 % FS (>0.3m/s)
Power supply		DC 24V, 200 mA (Excluding 4–20 mA and RS485 current)
Power I/O Connector		Quick-release 6-pin connector
Input/Output		FP-AS310A (A version): Analog output with self-powered 10-bit 4-20mA / NPN FP-AS310R (R version): Modbus RTU RS485
Protection circuit		Power reverse connection protection, Power surge protection
Waterproof level		IP66 *****
Transient data		Instantaneous flow rate
Cumulative data		Positive flow
Operation button		4 Key touch buttons
Cable length		2 meters long

* The device is calibrated with water at normal temperature before leaving the factory. Using fluids with viscosities different from water may result in inaccurate calibration values and could affect the minimum and maximum flow rates.
** The working temperature range for each material is provided as a reference. Please use your design experience to make the final material selection.
*** The minimum flow value may vary slightly due to flow field factors specific to individual models.
**** The measurement accuracy is determined through laboratory testing with clean water at a controlled room temperature of 25°C. Actual usage conditions may introduce errors.
***** IP66 stands for 'Ingress Protection,' which signifies the degree of protection an electrical device's enclosure offers against foreign object intrusion. The first digit ('6') denotes full dust protection, while the second ('6') means no harm from high-pressure water splashes.

FP-P015
Size	Connector	Spec	Material
1/2"	Male Thread	BSPT	UPVC / PVDF
	Male Thread	NPT	UPVC / PVDF
	Female Thread	BSPT	UPVC / PVDF
	Female Thread	NPT	UPVC / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF

FP-P020
Size	Connector	Spec	Material
3/4"	Male Thread	BSPT	UPVC / PVDF
	Male Thread	NPT	UPVC / PVDF
	Female Thread	BSPT	UPVC / PVDF
	Female Thread	NPT	UPVC / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF

FP-P025
Size	Connector	Spec	Material
1"	Male Thread	BSPT	UPVC / PVDF
	Male Thread	NPT	UPVC / PVDF
	Female Thread	BSPT	UPVC / PVDF
	Female Thread	NPT	UPVC / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF

FP-P032
Size	Connector	Spec	Material
1-1/4"	Male Thread	BSPT	UPVC / PVDF
	Male Thread	NPT	UPVC / PVDF
	Female Thread	BSPT	UPVC / PVDF
	Female Thread	NPT	UPVC / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF

FP-P040
Size	Connector	Spec	Material
1-1/2"	Male Thread	BSPT	UPVC / PVDF
	Male Thread	NPT	UPVC / PVDF
	Female Thread	BSPT	UPVC / PVDF
	Female Thread	NPT	UPVC / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF

FP-P050
Size	Connector	Spec	Material
2"	Male Thread	BSPT	UPVC / PVDF
	Male Thread	NPT	UPVC / PVDF
	Female Thread	BSPT	UPVC / PVDF
	Female Thread	NPT	UPVC / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF

FP-P065
Size	Connector	Spec	Material
2-1/2"	Butt Fusion	ISO	PPH / PVDF
	Socket Fusion	ISO	PPH / PVDF
	Socket	CNS	UPVC
		JIS	UPVC
		ANS	UPVC
		DIN	UPVC
	Flange	JIS 10K	UPVC

⚠ Safety instructions:
1. After the warranty, the electronic components of the product will age due to time and operating environment. Under long-term use, please replace the new product according to the condition of the product.
2. Do not operate the product under an Orange or Red LCD Backlight for a long time. Product damage and related losses may occur.

Conditions and Disclaimer:
CONDITIONS: Equipment sold by LORRIC is not intended to be used, nor shall it be used:
(1) As a "Basic Component" under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) In medical applications or used on humans. Should any product(s) be used in or with any nuclear installation or activity, medical application, used on humans, or misused in any way, LORRIC assumes no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, and, additionally, purchaser will indemnify LORRIC and hold LORRIC harmless from any liability or damage whatsoever arising out of the use of the product(s) in such a manner.

DISCLAIMER: Please be aware that magnetic fields or residual magnetism may cause interference to the flowmeter which may result in damage if they are used near the installation site. The purchaser must determine the applicability of the product for its desired use and assumes all risks in connection therewith. LORRIC assumes no responsibility or liability for any omissions or errors in connection with the use of its products.

The alarm used to detect paddle damage or loss is intended to assist on-site operators to find out what is causing equipment abnormalities. Because there are a myriad of variables involved with on-site operation and magnetic fields that come from other equipment, the alarm function is liable to fail. Please do not take the alarm function as a single source for monitoring your flow system. Please contact LORRIC for advanced help.

Please place your order according below information.

The whole set of paddle wheel flowmeter contains: Device, Paddle set, T-connector.
Select the flowmeter device and cable connector ( Order code example: FP-AS310A(R) )
Choose the T-connector + paddle set based on size, materials, type and pipe specification (Example: FP-P050CUAV)
For ordering the whole set, combine both codes altogether
Order code example: FP-AS310A(R) + FP-P050CUAV
(Download the catalog for more details.)

Size

UPVC pipe - union diameter size(mm)
	A	B	C	D	E	F	G	H
½"	164	100	27.6	36	62.3	46.2	115.7	86.2
¾"	168	100	32.6	41.9	62.3	50.5	115.7	85.7
1"	168	100	40.6	50	62.3	60	115.7	85.7
1¼"	210	114	50.2	59.6	65	75.6	127	89.2
1½"	218	120	56	65.7	70	83	134	92.5
2"	269.5	133.3	72	81	81	99.7	148.8	99