Skip to content

Select your region & language

Global

Region

Volumetric Flow Measurement System

FP-5130 series
FP-5140 series
FP-5150 series
FP-2130S
FP-2140S
FP-3130S
FP-3130
FP-4135
Digital flow meter DF-2200 Vehicle-mounted fuel flow meter
Digital flow meter FM-3100 Digital flow meter

In bench fuel consumption tests and on-board fuel consumption tests, instantaneous and cumulative fuel flow rates are measured.

Volumetric flow rate refers to the volume of fluid flowing per unit time.
By installing the FP series positive displacement flow detector in the flow path and combining it with the FM-3100 or DF-2200 digital flow meter, volumetric flow rate can be easily measured.
Since the volume of a fluid expands and contracts with temperature changes, temperature control during measurement is crucial.

Series Composition

1. About positive displacement flow detectors

Features of volumetric flow detectors for use with digital flow meters
Long-term continuous measurement
Low pressure loss
Suitable for hazardous locations
Can be mounted on a vehicle
You can choose from the following four types of detectors.

Standard type FP-5000 series

Standard type FP-5000 series

Achieves up to 20 times the pulse resolution compared to conventional methods.
A wide range of flow rates is available in our lineup.
It can be connected to optional accessories as a single unit, saving space.
Standard compatibility with alcohol fuels

Low pressure loss type FP-2130S / FP-2140S

Low pressure loss type FP-2130S / FP-2140S

pressure loss compensated type in which the flow sensor is driven by a motor to bring the free piston to the neutral position.

A reading accuracy of ±0.2% is achieved across the entire flow rate measurement range.

Explosion-proof type FP-3000 series

Explosion-proof type FP-3000 series

Internal pressure explosion protection
Detector + Air supply unit + Internal pressure protection monitoring panel
Available in hazardous areas: Zone 1 and Zone 2.
Low pressure loss type is also available.

Pressure-resistant explosion-proof
Detector + relay box
Available in hazardous areas: Zone 1 and Zone 2.

Vehicle-mounted type FP-4135

Vehicle-mounted type FP-4135

Compact and high-temperature resistant, making it convenient for in-car use.
Ultra-wide range with a flow ratio of 1:2000
Improved vibration resistance
Standard compatibility with alcohol fuels

  • FP Series Flow Rate Range List
    FP Series Flow Rate Range List

2. About digital flow meters

We offer two types of digital flow meters: a standard type that connects to various flow detectors and Fuel Density Meter and has calculation functions, and a compact, lightweight vehicle-mounted type.

FM-3100 Digital Flow Meter

FM-3100 Digital Flow Meter

High-speed response output 1 ms (analog/CAN)
Compatible with various detectors (FP series, FX series, FZ series)
It is equipped with a variety of calculation functions, including a temperature correction function for density values and addition/subtraction functions between modules.

DF-2200 On-vehicle fuel flow meter

DF-2200 On-vehicle fuel flow meter

Compact body, convenient for use in vehicles
Wide power supply, compatible with DC 12V / 24V vehicles.

General specifications Digital flow meter FM-3100 On-vehicle fuel flow meter DF-2200
Compatibility detector

FP Series / FD-5110 / FX Series / FZ Series
*Please add the module (sold separately) corresponding to each detector.

 FP-4135・MF-3200・FP-2130S・2140S・
FP-5131/5133・FP-5141/5143
Power supply voltage AC 100 to 240 V ±10% 80 VA or less
(When connecting two FM-3100 and FP-2140S units)		 DC 10 to 28 V, 28 VA or less
Operating temperature range 0～+50 °C 0 to +50 °C (Note: The operating temperature range for the AC adapter is 0 to +40 °C)
Operating humidity range 10-85% (non-condensing) 5～80 %
Outline drawings 240 (W) × 99 (H) × 297 (D) mm (excluding protrusions) 170 (W) x 49 (H) x 120 (D) mm (excluding protrusions)
Weight Approximately 3 kg Approximately 800g
Applicable standards CE marking (FM-0311A/FM-0312)
Low Voltage (LVD) Directive 2014/35/EU Standard EN61010-1
EMC Directive 2014/30/EU Standard EN61326-1 ClassA Group1
RoHS Directive 2011/65/EU Standard EN50581		 Low Voltage (LVD) Directive 2014/35/EU Standard EN61010-1 (when using an AC adapter)
EMC Directive 2014/30/EU Standard EN61326-1
RoHS Directive 2011/65/EU Standard EN50581
Measurement items Temperature, pressure, time
Modules for FP/FD: Instantaneous volumetric flow rate, instantaneous density
Modules for FZ: Instantaneous mass flow rate, instantaneous density
Module for FX: Instantaneous weight flow		 Instantaneous flow rate, temperature, pressure, cumulative flow rate, time
Accessories AC power cable, FM-0012 analog output adapter
(D-Sub to BNC cable 0.5 m), instruction manual		 DC power cable with clamp

 

Related Products

FP-5000 Option: Temperature and Pressure Sensor Unit

FP-5000 Series Volumetric Flow Detector

FP-5000 Series Volumetric Flow Detector

In volumetric flow rate measurement, it is important to measure the temperature at the time of measurement along with the flow rate.
We offer temperature and pressure sensor units that can be connected to the FP-5000 series positive displacement flow detector.

Temperature Sensor for FP-4135 as standard

FP-4135 On-board Volumetric Flow Detector

FP-4135 On-board Volumetric Flow Detector

A temperature sensor is included as standard equipment.
Temperature measurement: -30 °C to +100 °C
Temperature accuracy: A class

Temperature sensor for Low pressure loss type

Low pressure loss type

If you wish to add temperature and pressure sensors to the FP-2130S or FP-2140S, you can purchase the EH-0081 temperature sensor and EH-0082 pressure sensor separately and install them in the flow path yourself.
It is also possible to install temperature and pressure sensors in the detector using an additional temperature and pressure sensor block (made to order).

Explosion-proof type

When adding temperature and pressure sensors to the explosion-proof FP-3000 series, explosion-proof components are required. (Made to order)

Measurement principle

Four pistons arranged radially in the flow detection unit reciprocate due to the liquid flowing from the inlet to the outlet. This piston movement is converted into rotational motion by the crankshaft and transmitted to the rotation detection unit via a magnetic coupling. The rotary encoder in the rotation detection unit generates a pulse signal corresponding to the piston's movement.

  • Measurement Principle_No.1
  • Measurement Principle_No.2

System Configurations

  • System Configurations

Case Studies

The Importance of Temperature Control in Flow Measurement

Temperature changes within the piping flow path affect flow rate measurements.
Here, we will discuss the effects of intentionally changing the temperature of a fluid on flow rate measurement.

When the fuel was cooled in heat exchanger ①, the volumetric flow rate measured by FP-4135 showed a momentary increase due to liquid contraction caused by the cooling. Subsequently, as the T2 temperature stabilized, the volumetric flow rate measured by FP-4135 stabilized, but the flow rate decreased. This is due to the increased density of the liquid cooled by heat exchanger ① (making it harder to flow) and the increased pressure loss caused by the cooling and contraction of pipes and fittings in the flow path.

Temperature changes in the fuel affect volumetric flow rate measurements. When measuring volumetric flow rate, it is important to use temperature control devices to maintain a constant fluid temperature and to use insulation materials in the piping to block the effects of changes in ambient temperature.

Our High-Precision Fuel Flow Measurement System utilizes a piping configuration and installation that suppresses temperature fluctuations, achieving reliable and highly accurate flow rate measurement.

  • The Importance of Temperature Control in Flow Measurement - No. 1

Test conditions

  • Keep the fuel flowing at a constant rate.

  • Initially, no cooling water is flowed through heat exchanger ①.

  • At the time 10 s in the time series graph, 15°C cooling water is rapidly introduced into heat exchanger ①.

  • The Importance of Temperature Control in Flow Measurement - No. 2

Related Products

High-Precision Fuel Flow Measurement System

High-Precision Fuel Flow Measurement System

Our High-Precision Fuel Flow Measurement System controls the temperature and pressure of the fuel supplied to the engine, enabling highly accurate fuel flow measurement.

Click here for details
Inquire about this product

 Last updated:2022/04/07