FSP900 Type: Insertion Flow Meter | Thermometer | Water Flow Switch | Thermal Mass Flow Switch

FSP900 Type: Insertion Flow Meter | Thermometer | Water Flow Switch | Thermal Mass Flow Switch

FSP900 Type: Insertion Flowmeter | Thermometer | Water Flow Switch | Thermal Mass Flow Switch
Used in diesel generator oil tank, oil flow

 

Description

Product Features

  • Flow range: Water: 0.03~3 m/S Oil: 0.03~3 m/S
  • Applicable pipe diameter: DN8~DN350
  • Detection fluid: water, oil
  • Protection class: IP67

FSP900 Water Flow Meter/Switch

It is a device for automatic control and protection of water flow. When the water flow is changed, the control circuit absorbs or disconnects the dynamic force generated by the water flow on the target, so as to achieve the purpose of automatic control. Water flow switch is widely used in HVAC air conditioning system

FSP900 Water Flow Meter/Switch

Remote monitoring design

 

ECC200_IOT
IOT module

 

FSP900 Water Flow SwitchHow it works:

The FSP900 water flow switch will be installed at the outlet end of the chilled water used in the cooling water unit and the outlet end of the cooling water/chilled water of the water-cooled chiller. The normally closed water flow switch (when the air conditioning system is in normal operation, the water flow switch control circuit is closed, here refers to the state of the water flow switch is normally closed) The working process is: when the water flow reaches a certain value,FSP900 Water Flow Switchclosed, after which the compressor starts and the air conditioning system starts to operate. If there is water leakage in the air conditioning system or other reasons cause the water flow of the system to decrease, when the water flow decreases to a certain value, the water flow switch will be disconnected, the compressor will be shut down, and the HVAC air conditioning system will stop running.

1. Cooling water outlet pipe; 2. Water-cooled chiller condenser; 3. Water-cooled chiller evaporator; 4. Chilled water outlet pipe; 5.FSP900 Water Flow Switch.

FSP900 Water Flow SwitchInstallation position in air conditioning system

FSP900 Water Flow SwitchThe role of:

When the air conditioning system has sufficient water flowFSP900 Water Flow Switchclosed, after which the compressor starts, thus ensuring the safe and efficient operation of the air conditioning system.

1) When the flow rate of chilled water is too small, the load of the evaporator is insufficient, the evaporating temperature is too low, the cooling capacity decreases, and the operation efficiency decreases.

2) When the flow rate of chilled water is extremely small, the load of the evaporator is seriously insufficient, the evaporation temperature is very low, the evaporator freezes (or even freezes), and the suction pressure of the compressor is very low. If the system runs under this condition for a long time, it will cause the compressor to be damaged due to difficulty in oil return.

3) When the cooling water flow of the water-cooled chiller is too small, the heat dissipation efficiency of the condenser is low, and the heat of the fluorine system cannot be dissipated in time, resulting in an increase in the condensing temperature of the system, a decrease in the cooling capacity, and a decrease in the operating efficiency.

4) When the cooling water flow of the water-cooled chiller is extremely small, the heat dissipation of the condenser is seriously insufficient, the condensing temperature rises to a high level, and the exhaust temperature of the compressor is extremely high. If the system runs under this condition for a long time, it will cause the compressor to be damaged due to the carbonization of the lubricating oil.

Design flow value:

Give an example to illustrate the method of calculating the closed and open flow values of the chilled water flow switch of a chiller of a certain cooling capacity.

Given that the cooling capacity of the chiller is 32kW, try to calculate the closed and open flow values of the matching water flow switch.

1) Calculate the closed flow value of the water flow switch. The designed water flow (m3/h) of the evaporator of the unit can be calculated according to formula (1):

Considering the induction error of the water flow switch, the disconnected flow value of the water flow switch is (3.1±0.2)m3/h.

FSP900 Water Flow SwitchApplications:

FSP900 Water Flow SwitchThe stainless steel corrosion-resistant insert is used to detect the water flow condition. When there is water flow, the flow rate and temperature of the flowing water are quickly grasped, and the action output is driven to provide the water flow status signal.

The installation requirements are high, and the resistance is large when the small pipe diameter is installed, so it cannot be installed on the curved pipeline. When installed in a small pipe diameter or with a small water flow, it is prone to frequent movements due to the jitter of the water flow. The FPS900 water flow switch also solves the problem of the traditional design flow switch, and it is easy to cause the target to break when it is installed at the elbow of the large pipe diameter, which is an effective solution.

The static pressure of the pipeline impacts the bellows, and the bellows is prone to fatigue due to frequent movements.

FSP900 Water Flow Switch

 

Solve the reasons for the target breakage of the target flow switch:

The force on the target piece of the target flow switch is related to the water flow speed and the area of the target piece. The larger the flow rate and the target piece area, the greater the force acting on the target piece. For sensing water flow, the longest target is often installed on site. Due to the large force acting on the target, the target is excessively bent and loses its elasticity, and in severe cases, the target is broken.

The target flow switch usually needs to be more than 5 times the pipe diameter from the elbow and the valve. Due to the small area of the current building's computer room, it is impossible to ensure enough straight pipe sections to install the water flow switch. For example: DN300 pipe diameter, before and after the water flow switch It is almost impossible to guarantee a straight pipe section of 1500m, which is a very important reason for the failure of many field water flow switches.

In a curved pipe, due to the diversion effect of the curved pipe wall, the inner flow velocity increases and the outer velocity decreases gradually, forming a trapezoidal velocity distribution law of each flow section, causing the entire target to break due to uneven force. .

The impact of the water hammer generated by each start and stop of the pump will cause the target to be excessively bent or broken. The larger the pipe diameter, the greater the risk.

FSP900 Water Flow Switch

It can be installed closer to the elbow or valve, which can greatly reduce the straight pipe section required to install the target flow switch, save the engineering cost, and also greatly improve the stability of the water flow protection. Applications.

 

Flowmeter Type Flowmeter Price Gas Flowmeter Flowmeter Principle

 

 

 

  • water flow switch
    water flow switch
    The principle of the water flow switch is to measure the water flow, by measuring the pressure drop at both ends of the valve, orifice plate, etc., and then by checking the pressure drop and flow curve of the valve or orifice plate, the accurate flow can be obtained. Flow rate has been widely used in HVAC water side systems and flow measurement instruments. The application of the differential pressure switch in the HVAC system is mainly controlled according to the resistance and flow curve of the HVAC equipment. , water filter, valve and water pump all have their performance curves of pressure drop and flow, as long as the measured pressure difference on both sides of the differential pressure switch is compared with the preset value, the flow can be accurately controlled. The differential pressure switch used as flow control in HVAC has the characteristics of accurate flow control, no additional resistance to the water system, no requirements for the diameter of the water pipe, and no water flow disturbance interference. It can replace any form of target flow switch. Relatively For the target flow switch, it can avoid false flow caused by pump cavitation, and has very accurate reset flow and disconnection flow. Overview

    water flow switch

    In some large equipment and machines, circulating water is usually used to cool the unit, so as to keep the working temperature of the unit within a reasonable range. When the cooling water system fails, if the water flow stops, it will cause the temperature of the unit to rise, affecting the normal operation of the unit, and may cause the unit to burn out in serious cases. Usually, a water flow switch is installed in the pipeline of the cooling water system to monitor the flow state of the cooling water in real time. Once the cooling water stops flowing, the water Flow SwitchIt will send an alarm signal to the central control room, so that the central control room can deal with it in time to avoid accidents.

    principle

    There are many ways to detect the fluid flow state. Generally, the water flow switch is roughly divided into three types. One is the early mechanical flow switch, also known as the baffle flow switch. Its principle is to push the baffle to deflect through the flow of water. Then touch the micro switch action. The advantages of this mechanical flow switch are that it is easy to use and cheap. The disadvantage is that the mechanical structure will cause wear and tear. In the case of poor water quality, the action is not very stable; one is a thermal flow switch, its principle Yes, the size of the liquid flow is different, and the heat taken away is different. By detecting the size of the heat loss, the flow of the water can be detected. The advantage of this water flow switch is that there are no moving parts, there is no wear and tear, and its life and stability are greatly enhanced. The disadvantage is that the price is slightly more expensive than the mechanical type; the last one is a differential pressure flow switch. The switch is pioneering to precisely control the flow according to the heat exchanger pressure drop and flow curve without any pressure drop on the air conditioning system.

    Baffle Flow Switch

    Principle and Features

    baffle Flow SwitchThe mechanical part is safely separated from the electronic part. The product does not contain bellows that can easily lead to failures, and electrical components do not directly contact metal components with large temperature differences. Using imported magnetic switch as the electrical action part, it has smaller disconnection and reset flow, and is the preferred flow protection product for central air conditioning and industrial fluid control.

    Apply

    baffle Flow SwitchGas-liquid dual-purpose type, which can be widely used in industrial automation/mechanical equipment/air compression industry/refrigeration and air-conditioning fields. In industrial occasions, it can be used in water-cooled welding machines, laser equipment cooling systems, vacuum coating machines, electric furnaces, and polysilicon ingot furnaces. Wait. The water flow switch magnet is not in a flowing waterway and can be used in sewage systems and works properly.

    technical parameter

    △Voltage: 250V (max.)

    △Maximum current and capacity: 1A, 50VA

    △ Wiring method: direct wiring

    △ Output: SPST magnetic switch (factory setting is normally open)

    △Pressure resistance: 25bar, 50bar can be customized

    △Average pressure loss: 0.01bar (maximum flow rate)

    △Working temperature: -20…90℃

    Installation location
    Installation location

    △Enclosure protection grade: IP65

    △Material: Wetted Housing: Nickel-plated brass

    Bezel: Stainless Steel

    Seal: PTFE

    Applicable media

    water, steam, oil

    Thermal flow switch

    Features

    1. The probe has been specially treated, and the outer surface has a protective film, which is completely anti-corrosion and anti-scaling;

    2. The potentiometer is directly driven by the drive screw for setting without disassembly, so it is completely waterproof

    3. The original double adjustment technology makes the adjustment more convenient and the display more accurate

    4. The original can be used as double relay output to make control easier

    4. LED lights can reflect the size of the current flow

    5. Ultra-small shell, integrated design, all made of stainless steel, practical and beautiful

    technical parameter

    1. Setting method: two potentiometer settings (no disassembly, directly driven by the drive screw to drive the potentiometer to set), one to set the action point, one to set the range

    2. Measuring range: water 0-10m/s, oil 0-15m/s, gas: 0~30m/s

    3. Working voltage: DC24V, AC/DC110V, AC/DC220V

    4. Working current: <60mA

    5. Output mode: relay output, PNP output, NPN output, can be used as double alarm output

    6. Operating temperature: normal temperature type -20-80℃, high temperature type 0-150℃

    7. Reverberation time: 1~10S, typical value is 2S

    8. Initialization time: about 8S

    9. Electrical protection: reverse phase, short circuit, overload protection

    water flow switch
    water flow switch

    For more detailed parameters, please consult the manufacturer Kiel China

    Differential pressure flow switch

    Feature description

    Fixed differential pressure flow switch
    Fixed differential pressure flow switch

    The fixed single set point differential pressure switch is specially developed for high-volume OEM customers. ACOL's professionals first communicate well with customers to understand the characteristics of customers' products and professionally customize suitable differential pressure switches for this product, so that the water The flow control is reasonable and accurate, and the user cannot change the set value of the differential pressure switch on site, thus ensuring that the set value of the differential pressure switch cannot be changed, and reducing the failure and hidden dangers of the unit due to improper installation and design of the on-site water system. ACOL company fully considers the actual situation of the user's application, knowing that the user is concerned about flow control, and the fixed-point differential pressure switch can convert the differential pressure setting value of the differential pressure switch into a specific heat exchanger according to the customer's requirements. The flow protection value, we can customize the differential pressure switch that meets the customer's flow index according to this requirement, and the customer only needs to test according to the flow during inspection.

    technical parameter

    △Storage temperature: -29~82℃

    △Ambient temperature: -20~71℃

    △Using medium temperature range: -20~93℃

    △ High and low voltage side connection port: 1/4 SAE (7/16″-20UNF), G1/4 (1/4″NPT), etc. optional

    △Maximum allowable static pressure: 10bar

    △Maximum allowable differential pressure: 5bar

    △Setpoint repeatability deviation: ±1%

    △Output form: One set of SPDT dry contact output, one or two outputs are optional, the factory setting is normally open when one output is

    △Switch parameters: 10A (max.) 250V (max.)

    △ Wiring method: DIN 43650C connector/direct wire (105℃ flame retardant sheathed wire 2X0.75mm2 or 3X0.75mm2) optional

    Applicable media

    water, air

    Infrared water flow switch

    function

    Also called infrared water flow sensor, it is applied to the water inlet of the hot water heater, a new high-tech industry in the water heater industry, to detect the flow of water entering the instantaneous electric water heater, and to control the startup and shutdown functions. It is especially suitable as a supporting device for constant temperature instant electric water heater, and transmits the detected water flow and temperature to the control system in time to achieve the purpose of fast constant temperature. It is also suitable for the flow detection needs of similar products.

    product manual

    The infrared flow sensor is installed at the inlet of the water heater and other products to detect the water flow. When the water flows through the product, the impeller rotates, and its rotational speed changes with the flow, and the infrared flow sensor outputs the corresponding pulse signal. Feedback to the controller, the controller will issue corresponding commands according to the size and on-off of the water flow. The internal design of this product adopts the physical principle structure and has the function of anti-reverse flow signal, which prevents the dry burning phenomenon of the product when the water flow is reversed. To prevent the magnetic impurities in the water from being adsorbed on the impeller, the long-term use signal will not change with the prolonged use of the product. In addition, there is no magnetic field as a signal source, and the shaking of the impeller does not affect the strength of the signal, so the gap between the impeller and the casing can be increased to ensure that the impeller will not stick or jam due to poor water quality in long-term use.

    Within a unit flow, the more pulse parameters sent out, the more accurate and consistent the product will be. When the infrared flow sensor has a flow rate of 1 liter/min, it can send about 20 pulse signals per second, and can send about 1200 pulse signals per minute.

    water flow meter

Additional information

Application

Flow Meter

Types of

Electronic

Installation method

Insertion

Output method

digital, analog

Technical Specifications

FSP900 FGT EN Page4

model FSP900
Measuring range Water: 0.03~3 m/S
Oil: 0.03~3 m/S
Sensor length (mm) 45~72
Sensor diameter Φ8
Sensor material SUS304
output type 4~20mA, relay.NPN/PNP
Communication type RS485
Working pressure 4 Mpa(Max.60Mpa)
ambient temperature -20~80 ℃,≤8 5 % RH
operating temperature -20~100 ℃
OLED display: Flow rate display / temperature display dual display interface
shell material SUS304
waterproof, etc. IP 67
Connection method Female tooth M18-1.5
Supply voltage 24 Vdc
power consumption 3W(24Vdc)
Wiring 2 sets of 4~20mA (flow + temperature) + 1 set of NPN or PNP alarm contacts
1 set of 4~20mA (flow/temperature) + 2 sets of NPN or PNP alarm contacts
          RS485 (flow/temperature)
optional accessories F01: Welded joint
F02: Three-way screw joint
F03: Tee flange joint
Remote monitoring
Optional function
IoT_D: Rail Mount MI/O+RS485
IoT_R: Rail Mount RS485
IoT_N: Economical installation of RS485

Series Specifications

serial number Specification
model
picture Technical Specifications show Flow output signal temperature signal power supply precision Applicable media Protection class Explosion-proof grade
RELAY (relay) NPN, PNP 4-20mA RS485 pulse DC24V 220VAC/DC water Oil gas
1 FSP1000   DC24V, AC/DC220V power supply, 6LED light indication, NPN, PNP, relay output, standard probe, long probe 0.96-inch light-emitting OLED, Chinese and English display have have have have optional optional 0.25-0.5% available available   IP65 without
2 FSP900   DC24V power supply, temperature 4-20mA output, digital display, temperature, flow one alarm point output 0.96-inch light-emitting OLED, Chinese and English display have have have have 4-20mA and Relay/NPN/PNP have 2.5% available available   IP67 without
3 FSP800   DC24V power supply, temperature 4-20mA output, digital display, temperature, flow one alarm point output Three-digit digital display have have have 4-20mA and Relay/NPN/PNP have 2.5% available available   IP67 without
4 FSP700   DC24V power supply, 4-20mA output, digital display, two alarm points output, standard probe Three-digit digital display have have have have 2.5% available available   IP67 without
5 FSP600   DC24V, 6LED light indication, NPN, PNP, relay output, standard probe, small probe, long probe 6 LED lights to indicate optional optional have 2.5% available available   IP67 without
6 FSP500   DC24V, AC/DC220V power supply, 6LED light indication, NPN, PNP, relay output, standard probe, small probe, long probe 6 LED lights to indicate optional optional optional optional 2.5% available available available IP67 without
7 FSP300   DC24V power supply, 6LED light indication, relay output, standard probe, small probe 6 LED lights to indicate have optional have 2.5% available available available IP67 without
8 FSP200   DC24V power supply, 6LED light indication, 4-20mA output, standard probe, small probe 6 LED lights to indicate have have 2.5% available available available IP67 without
9 FSP100   DC24V, AC/DC220V power supply, 6LED light indication, NPN, PNP, relay output, standard probe, small probe 6 LED lights to indicate optional optional optional optional 2.5% available available available IP67 without

Scope of application

series
model
Dimensions
Unit: mm
Be applicable
Pipe diameter
thread
interface
Flow output signal temperature output signal communication power supply
relay NPN
PNP
4-20mA relay NPN
PNP
4-20mA RS485 24V
DC
220V
AC/DC
FSP900-S1
 
  FSP900 Dimensions 01  
 
DN8~DN100 M
18×1.5
have optional have have optional have have have
FSP900-S2
 
  FSP900 Dimensions 01 02  
 
DN80~DN450 M
18×1.5
have optional have have optional have have have

Order model

Ordering Information                          
FSP coding Secondary code Probe size
 
900 S1 Water: 0.03~3 m/s; Oil: Oil: 0.03~3 m/S For sensing rod length (mm): 45.5 (standard type)
 
  S2 Water: 0.03~3 m/s; Oil: Oil: 0.03~3 m/S For sensing rod length: 72.5 (long axis type)
 
 
 
 
coding fluid type
      W water (standard)
      O Oil
     
 
coding Output method
        F2N Flow*1:4~20mA+flow*1@NPN+temperature*1@NPN
        F2P Flow*1: 4~20mA+flow*1@PNP+temperature*1@PNP
        FTN Flow*1: 4~20mA+Temperature*1@4~20mA+Free setting*1@NPN
        FTP Flow*1:4~20mA+Temperature*1:4~20mA+Free setting*1@PNP
       
 
coding Specify the length of the sensor rod (unit: mm)
          XXX Overall product length tolerance is ± 5mm
          Features, specifications and dimensions are subject to change without notice
          Maximum length.200mm
          Please contact our service center
         
 
coding Body material
            SS Sensing rod: stainless steel 304
           
 
coding power supply
              D DC 24V
             
 
coding Optional accessories: Connector
                0 without
                F01 Welded joint (applicable: DN25~DN350)
                F02 Three-way screw joint (applicable: DN8~DN50)
                F03 Tee flange (applicable: DN25~DN150)
               
 
coding Optional function: remote monitoring transmitter
                  0 without
                  IOT-D Rail mount type (applicable: MIO: AI/DI input)
                  IOT-R Rail Mount RS485
                  IOT-N Economical installation of RS485
                 
 
coding Optional function: SMM software
                    0 without
                    1 Standard
                    2 Advanced
                    3 Customized
                    3 ODM type
                   
 
coding Brand printing
                      F FGT label
                      X Customized brand
                     
 
   
FSP                       Complete order model
                           
*Note: The annual purchase order of the customized brand needs to be more than 100 sets                    
Inquiry form