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: < 100A DC24V
Displayed Flow Rate: Instantaneous Flow Rate
Input/Output: A version : Analog output 10bit 4-20mA / NPN
R version : Modbus RTU RS485

Catalog



Paddle Wheel Flow Meter

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

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.

Dual LCD/LED screens for easy traffic and equipment status monitoring

  • High-brightness large LED screen for easy long-distance flow number reading.
  • LCD screen backlight with three-color warning light signal for visual monitoring of flow meter's normal and abnormal conditions.
Dual LCD/LED screens for easy traffic and equipment status monitoring

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

Screen can be switched according to vertical or horizontal piping
Pulse 2.0 Technology

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-AS Series: Universal Compatibility & Interchangeable Transmitters

LORRIC’s FP-AS510 and FP-AS310 transmitters share the same paddlewheel base and fittings, allowing easy upgrades by replacing only the display. This minimizes downtime, reduces maintenance costs, and ensures efficient, long-term flow monitoring.

FP-AS Series: Universal Compatibility & Interchangeable Transmitters

FP-AS Series Paddlewheel Flow Meters

The FP-AS series offers two versions: FP-AS310, a cost-effective option ideal for large-scale deployments, and FP-AS510, a more advanced model designed for complex applications.

FP-AS Series Paddlewheel Flow Meters

Spec

FP-P015 FP-P020 FP-P025 FP-P032 FP-P040 FP-P050 FP-P065
Installation method
in-line
Applicable pipe 
diameter
d 20 (mm)
DN 15 
(mm)
DN 1/2  
(inch)
d 25 (mm)
DN 20
(mm)
DN 3/4
(inch)
d 32 (mm)
DN 25
(mm)
DN 1
(inch)
d 40 (mm)
DN 32
(mm)
DN 1-1/4
(inch)
d 50 (mm)
DN 40
(mm)
DN 1-1/2
(inch)
d 63 (mm)
DN 50
(mm)
DN 2
(inch)
d 76 (mm)
DN 65
(mm)
DN 2-1/2
(inch)
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 :0~45°C (32~122°F)
PPH: 0-80
PVDF:0-100
ss316L:0-100 **
Device working environment temperature
-10~60°C (14~140°F)
Velocity range  ± 0.3~10m/s Can extend to ± 0.15m ~ 10m/s
(Please note that the minimum flow value may vary slightly due to flow field factors specific to individual models.)
Flow range 3.6-120.6
LPM
5.7-188.5
LPM
8.8-294.5
LPM
13.6-452.9
LPM
22.6-754.0
LPM
36.8-1225.7
LPM
65.4-2179.0
LPM
0.95-28.4
gpm
1.5-49.86
gpm
2.32-80.81
gpm
3.59-139.86
gpm
5.97-190.36
gpm
9.72-313.77
gpm
17.27-526.29
gpm
Language English, 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-bit LCD display
 Display update cycle 1s
Measurement accuracy ±2.5% OR***
Linearity ± 0.5 % FS (>0.3m/s)
Power supply
DC 24V 100mA(not included in the communication current)
Power I/O Connector
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 measurement accuracy is determined through laboratory testing with clean water at a controlled room temperature of 25 degrees Celsius. 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 IP rating format consists of two digits, expressed as IPXX. The first digit denotes the level of protection against solid objects, particularly dust resistance, while the second digit indicates the waterproof protection level. A higher number signifies better protection. In the case of IP66, the first '6' indicates 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
NPT UPVC / PVDF
Female Thread

BSPT UPVC / PVDF
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
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
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
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Socket CNS UPVC
JIS UPVC
ANS UPVC
DIN UPVC
 Butt Fusion ISO  PPH / PVDF
Socket Fusion ISO  PPH / PVDF 
FP-PO32 
 Size    Connector  Spec Material 
1-1/4"
Male Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
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
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
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
NPT UPVC / PVDF
Female Thread BSPT UPVC / PVDF
NPT UPVC / PVDF
Socket CNS UPVC
JIS UPVC
ANS UPVC
DIN UPVC
Butt Fusion ISO  PPH / PVDF
 Socket Fusion ISO PPH / PVDF 
flange JIS 10K
UPVC 
 
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

  • * Paddle wheel flowmeter contains: Device, Paddle set, T-connector. Users need to check the material and size of the T-connector and paddle set. •  Please refer to following order example for placing order to LORRIC. 
  • * Please refer to following order example for placing order to LORRIC. 
  • * T-connector + paddle set (T-connector is generally shipped with a paddle set.)
  • (Refer to the catalog for higher resolution images and detailed purchasing examples.)

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
UPVC pipe - spigot pipe diameter size(mm)

A B C D E F
2½" 160 70 76 92 106.5 152.5
 
Device size(mm)
I
63 63
Connector (mm)
K L
47.8 30.0
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