Verified Company
Dalian Zerogo Instrument Co., Ltd.
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Specifications
1.Temperature accuracy+-1
2.Output of current loop 4mA-20mA
3.Output of frequency/pulse0Hz-10kHz
4.Delivery time 5days
TECHNICAL SPECIFICATION
Products specs are divided to eleven based on nominal line sizes: DN1, DN3, DN6, DN10, DN15, DN25, DN40, DN50, DN80, DN100, DN150 (units: mm).
Configurations
Figure 1 Sensors (primary meter)
<img src="http://i00.i.aliimg.com/img/pb/767/806/440/440806767_318.jpg" alt="mass flow meter(CE & ISO)" width="354" height="333" ori-width="800" ori-height="696">
Figure 2 Essential Safety Transmitter Figure 3 Composite Transmitter and Sensor
<img src="http://i01.i.aliimg.com/img/pb/768/806/440/440806768_611.jpg" alt="mass flow meter(CE & ISO)" width="271" height="300" ori-width="799" ori-height="734"> <img src="http://i01.i.aliimg.com/img/pb/769/806/440/440806769_731.jpg" alt="mass flow meter(CE & ISO)" width="237" height="282" ori-width="514" ori-height="800">
Every meter consists of two parts: the sensor (primary meter) and the transmitter (secondary meter).
The sensor (primary meter) is machinery part of mass flow meter. There are a vibrator, two displacement sensors and a temperature sensor in it.
The transmitter (secondary meter) is display part of the meter, also is electrical part. There are power supply, analog circuits, digital circuits, displayer, and output circuits and so on in it. Its foundational functions are receiving and regulating the electrical signal from sensors, directly getting mass flow, temperature and density after regulating, and calculating volume flow and other need parameters from known parameters. It can display, output, store and long distance transmit, and you can modify the parameters of flow meter. There is a diode safety barrier in transmitters; the function of the diode safety barrier is safeguard to isolating explosion.
As the composite explosion-proof flow meter, the sensor (primary meter) is essential safety; the transmitter (secondary meter) is explosion isolated. The sensor and the transmitter may all operate under hazardous area.
Titles | Technical Specifications |
Mass flow accuracy | ±[0.2% +(zero stability /flow rate×100%)] |
Mass flow repeatability | ±(1/2) ×[0.2% +(zero stability /flow rate×100%)] |
Density range | 0.2 g/cm3~3.5g/cm3 |
Density accuracy | ±0.002g/cm3 |
Temperature range | -60°C~+200°C |
Temperature accuracy | ±1°C |
Output of current loop | 4mA~20mA |
Output of frequency/pulse | 0Hz~10kHz |
Contactor capacity of a Batch Control relay | 24V/0.1A |
Contactor form | normal open |
Titles | Specifications |
Temperature range of fluid | -40°C~+200°C |
Environmental temperature range | 0°C~+40°C |
Environmental humidity | <90% RH, non condensation |
Atmospheric pressure range | 86kPa~106kPa |
Power supply of transmitters | Essential safety Voltage: AC(220±10%)V,(50±5%)Hz Composite Voltage: DC (24±10%) V |
Power consumed | <15W |
Installation of meters
The mass flow meter mostly is divided to two parts: a sensor (primary meter) and a transmitter (secondary meter), a shield cable connects two parts. The transmitter (secondary meter) of the essential safety flow meter must mount in safety area according to prescriptive conditions (see section 3.2). A sensor and a transmitter of the essential safety flow meter installation show in Figure 4.
<img src="http://i00.i.aliimg.com/img/pb/090/814/440/440814090_747.jpg" alt="mass flow meter(CE & ISO)" ori-width="487" ori-height="259">
Figure