ANCN brand , integrative multivariable DP flowmeter, can be composed with different throttle devices like orifice, nozzle, v-cone, elbow pipe, venturi
I. General introduction
ACF-1-xxx is the multivariable DP flow meter with the years of sensor technologies accumulation and full concentrations. It is the overall combination of sensor, static-pressure sensor, temperature sensor and flow totalizer, and could constitute the integrate differential pressure flow meter with the cooperation of integrative differential pressure throttling detection device_(such as: V-cone,nozzle, Orificeplate, averaging pilot-tube Annubar etc.); the gauge can display the volume of measured mediums or instantaneous flow and integrated flow of the measured mediums (such as: natural gas, steam, coal gas, compressed air, nitrogen, oxygen, gases or fluids such as water) according to the mathematical model of the mediums. It adopts micro power design, and standby battery is built-in to ensure trade measurement safety, the RS485 communication function and (4-20) mA standard output are provided, the gauge is the revolutionary innovative product in differential pressure flow meter system, and is superior to traditional instruments.
2.Features
*Sensor unit and electronic unit with MTC Temperature Compensation Technology (see Note)
* Static pressure compensation technology to ensure the flow measurement precision.
* Unique integrative pressure and differential sensor design (patent applied).
* External installed high precision temperature sensor to ensure the calculation precision.
* Standby battery design, with automatic switching function to ensure stable measurement of instrument and trade security.
* Field configuration or remote configuration of internal critical parameters, for the convenience of maintenance.
* Instantaneous flow, accumulated flow, differential pressure, temperature, pressure parameters, etc.
* Unique anti-interference design, applicable for radio frequency, electromagnetism and frequency converter sites.
* 4-20mA standard signal and always online RS-485 communication output simultaneously.
* EXdIICT6 Explosive-proof Certification
Note: MTC: Multiple temperature compensation, detailed temperature characteristics modification and operation compensation for primary sensor and electronic device conducted by multiple temperature sensors, so that the temperature characteristics can be greatly improved.
3.Data Sheet
3.1 Display Performance
Parameters | Display Digits | Units |
Differential pressure | 5 | kPa |
Static pressure | 5 | kPa |
Temperature | 5 | ℃ and K |
Instantaneous flow | 6 | Nm3/h, Sm3/h and kg/h |
Accumulated flow | 6 | m3, T, kg and L |
Heat | 9 | J |
3.2 Working Power:
External power supply: (7-30) VDC, working current is less than 40mA
Built-in battery: 3.6V industrial lithium-based automatic switch power supply, when external power is not available, the battery can work for about 2 years continuously.
3.3 Measurement Range and Accuracy of Sensor
Type | Optional Measuring Range | Measurement Accuracy | Remarks |
Differential pressure range | 0-1.5-7-35-180-600 (kPa) | 0.1%FS and 0.2%FS | Depends on working conditions and throttling elements |
Static pressure range | 0-2.5-6.4-10-16-25-32 (Mpa) | 0.2%FS | Depends on working conditions and throttling elements |
Temperature pressure range | -50℃ ~ 400℃ | 0.3%FS | 3-wire system pt100 sensor |
Output Signal and Communication Interface
a. RS485 communication interface standard, MODBUS protocol can support 255 devices at most.
b. 4-20 (mA) standard current signal output, the output accuracy is 0.2%FS
Ambient Temperature: :-30℃ - +70℃
Relative Humidity: 5%-95%
Atmospheric Pressure: 70-106kPa
Explosive-proof Grade: EXDIICT6
