The V-Cone multi-parameter flowmeter is a new type of intelligent gas flowmeter integrating high-precision differential pressure transmitter, pressure transmitter, temperature sensor, intelligent totalizer, and inner cone, specially designed for natural gas and compressed air flow measurement.
The V-Cone multi-parameter flowmeter is improved based on the original YNZ natural gas inner cone flowmeter. It adopts a higher-level single-chip microcomputer system with shorter data sampling interval and faster computation speed, enabling high-speed calculation of complex compensation software formulas, more detailed segmented flow coefficient correction, further ensuring calculation accuracy.
Main Technical Parameters
1 System uncertainty: 1.5%
Includes temperature, pressure, differential pressure, supercompressibility factor, true relative density, flow totalizer section, inner cone throttling element section. Among them:
- Pressure indication error: ±0.2% FS
- Temperature indication error: ±0.1°C
- Differential pressure indication error: ±0.2% FS
- Flow totalizer accuracy: ±0.5% FS
- Inner cone throttling element: ±0.5% FS
2 Standard condition
P=101.325KPa, t=20°C
3 Operating conditions
- Ambient temperature: -20°C~60°C
- Medium temperature: -20°C~135°C
- Relative humidity: 5%~95%
- Atmospheric pressure: 75KPa~106KPa
4 Electrical performance indicators
- Operating power: +24VDC±15%, ripple ≤±5%
- Overall power consumption: <1W
- Output methods: a. Uses RS485, RS232 interface, can directly network with host computer or secondary instrument, remotely display measured medium temperature, pressure, differential pressure, standard instantaneous flow, standard cumulative flow, density, supercompressibility factor, daily/monthly/annual reports, power-down records, and various set parameters.
b. 4~20mA current signal output, corresponding to zero flow and maximum flow. c. Has frequency signal output proportional to standard volume flow, 0~1000HZ corresponding to minimum flow and maximum flow. d. Has calibration pulse output: one pulse output for every certain unit of standard volume metered by the flowmeter. (Note: Frequency signal and calibration pulse output signal can only be selected as one by software setting)
5 Real-time data storage function
For user data management needs, the flowmeter can store real-time data detected and calculated by the totalizer in real time.
6 Wireless data transmission function (GPRS system)
The flowmeter can transmit real-time data to the host computer via GPRS system in SMS form, enabling automated production management.
7 Explosion-proof mark: Exde II BT4
8 Protection rating: IP65
