H250 Explosion proof Metal Tube Float Flow Meter

The H250 explosion-proof metal tube float flowmeter adopts the internationally advanced Honeywell non-contact magnetic sensor for detecting changes in magnetic field angle, and is equipped with a Motorola microprocessor system. It can achieve functions such as LCD indication, accumulation, remote transmission output (4-20Ma), pulse output, upper and lower limit alarm output, etc. This type of intelligent signal transmitter has high accuracy and reliability, and can completely replace imported instruments of the same type. It also has the characteristics of high cost-effectiveness, multi parameter calibration, power failure protection, etc.

The H250 explosion-proof metal tube float flowmeter consists of two parts:
Sensors - measuring tubes and floats;
Signal transmitter - indicator;
There are four types of liquid contact materials for sensors: stainless steel, Hastelloy, titanium, and stainless steel lined with PTFE; Users can meet the pressure resistance and medium anti-corrosion needs of the process according to different corner liquid materials. According to different measurement requirements, users can choose different indicator combinations when selecting to achieve different measurement requirements. The measurement of flow is completed by the transmitter inside the indicator, which couples the magnetic steel to sense the change in float position to indicate the flow and transmit the signal remotely. When the measured medium flows through the measuring tube from bottom to top, the float is balanced by the vertical upward pushing force of gravity, buoyancy, and fluid velocity. The float is relatively stationary at a certain position, which varies with the ring area of the float and the cone tube, as well as the fluid velocity. The position of the float corresponds to the flow rate of the measured medium.

1. Sturdy all metal structure design float flowmeter

2. Measurement tube indicator designed with independent concept

3. Stainless steel, Hastelloy, titanium, PTFE material measurement systems can be selected

4. Low pressure loss design

5. Short stroke, small structural design, total instrument height of 250

6. Magnetic coupling structure ensures data transmission and signal stability

7. Insulation or heat tracing jacket

8. Vertical, horizontal, and various installation methods are more suitable for different usage scenarios

9. Suitable for flow measurement of small caliber and low velocity media

10. Reliable work, minimal maintenance, and long lifespan

11. Not high requirements for straight pipe sections

12. Wide traffic ratio 10:1

13. Dual row large LCD display, optional on-site instantaneous/cumulative flow display, can be equipped with backlight

14. Single axis sensitive indication

15. Non contact magnetic coupling transmission

16. All metal structure, suitable for high temperature, high pressure, and highly corrosive media

17. Can be used in flammable and explosive hazardous environments

18. Choose a two-wire system, battery, and AC power supply method

19. Multi parameter calibration function

20. Equipped with data recovery, data backup, and power down protection functions

Measurement range: Water (20 ℃) 1-200000 l/h Air (20 ℃, 0.1013MPa) 0.03-4000m3/h Refer to the flow meter, special flow rates can be customized
Range ratio: Standard 10:1 Special 20:1
Accuracy: Standard Type 1.5 Special Type 1.0
Pressure rating: Standard type: DN15-DN50 4.0MPa DN80-DN200 1.6MPa
Special type: DN15-DN50 25MPa DN80-DN200 16MPa
The pressure rating of the jacket is 1.6MPa
Special types should be negotiated with the factory before selection and ordering
Pressure loss: 7kPa-70kPa
Medium temperature: Standard type: -80 ℃ -+200 ℃: PTFE: 0 ℃ -85 ℃
High temperature type: up to 400 ℃
Medium viscosity: DN15:<5mpa. s (f15.1-f15.3)
<30mpa.s(f15.4-f15.8)
DN25:<250mpfa.s
DN50-DN150:<300mpa. s
Environmental temperature: LCD type -30 ℃ -+85 ℃
Pointer type -40 ℃ -+120 ℃
Connection form: Standard type: DIN2501 standard flange
Special type: Any standard flange or thread specified by the user
Cable interface: M20 * 1.5
Power supply: Standard 24VDC two-wire 4-20mA (10.8VDC-36VDC)
Communication type: 85-265VAC 50HZ
Battery type: 3 6V@4AH Nickel-metal hydride battery
Alarm output: upper or lower limit instantaneous flow alarm
Standard type: open collector output（ 100mA@30VDC Internal impedance of 100 ohms
Special type: Relay output (contact capacity) 5A@250VAC ）
Pulse output: Accumulated pulse output, minimum interval of 50 milliseconds
LCD display: instantaneous flow display value range: 0-50000
Accumulated traffic display value range: 0-
Protection level: IP65
Explosion proof mark: intrinsically safe type ia Ⅱ CT6, explosion-proof type d Ⅱ CT6