LZZ-40/R4/M9/G LZZ-40/R4/M9/L LZZ-40/R4/M7/G LZZ-40/R4/M7/L Metal tube rotameter

LZZ-40/R4/M9/G LZZ-40/R4/M9/L LZZ-40/R4/M7/G LZZ-40/R4/M7/L Metal tube rotameter

LZZ-40/R4/M9/G LZZ-40/R4/M9/L LZZ-40/R4/M7/G LZZ-40/R4/M7/L remote transmission metal tube rotameter is in the measuring tube. With the change of flow, the float moves upward. At a certain position, the buoyancy of the float is balanced with the gravity of the float. At this time, the flow annular gap area between the float and the orifice plate (or cone tube) remains constant. The annular gap area is directly proportional to the rising height of the float, that is, the rising position of the float in the measuring tube represents the size of the flow. Changing the position of the float is transmitted by the internal magnet to the external indicator, so that the indicator can correctly indicate the flow value at this time.

Measurement principle

LZZ-40/R4/M9/G LZZ-40/R4/M9/L LZZ-40/R4/M7/G LZZ-40/R4/M7/L remote transmission metal tube rotameter adopts variable area measurement principle. The float moves upward with the change of flow in the measuring tube. At a certain position, the buoyancy of the float is balanced with the gravity of the float. At this time, the flow annular gap area between the float and the orifice plate (or cone tube) remains constant. The annular gap area is directly proportional to the rising height of the float, that is, the rising position of the float in the measuring tube represents the size of the flow. Changing the position of the float is transmitted by the internal magnet to the external indicator, so that the indicator can correctly indicate the flow value at this time. This makes the indicator housing not in direct contact with the measuring tube. Therefore, even if the limit switch or transmitter is installed, the instrument can be used under high temperature and high pressure working conditions.

Features of LZZ-40/R4/M9/G LZZ-40/R4/M9/L LZZ-40/R4/M7/G LZZ-40/R4/M7/L remote transmission metal tube rotameter

Features of remote transmission metal tube rotameter:

1. Solid all-metal structure design float flowmeter;

2. Measuring tube indicator with independent concept design;

3. Optional stainless steel, Hastelloy, titanium, PTFE material measurement system;

4. Low pressure loss design;

5. Short stroke, small structure design, total instrument height 250;

6. Magnetic coupling structure ensures more stable data transmission and signal;

7. Insulation or heat tracing jacket;

8. Vertical, horizontal and various installation methods are more suitable for different occasions;

9. Suitable for small diameter and low flow rate medium flow measurement;

10. Reliable work, small maintenance and long life;

11. The requirements for straight pipe sections are not high;

12. The wider flow ratio is 10:1;

13. Double-line large liquid crystal display, optional on-site instantaneous/cumulative flow display, with backlight;

14. Single-axis sensitive indication;

15. Non-contact magnetic coupling transmission;

16. All-metal structure, suitable for high temperature, high pressure and strong corrosive medium;

17. It can be used in flammable and explosive dangerous occasions;

18. Select two-wire system, battery, AC power supply mode 19. Multi-parameter calibration function;

20. With data recovery, data backup and power-down protection functions.

Main tech data of LZZ-40/R4/M9/G LZZ-40/R4/M9/L LZZ-40/R4/M7/G LZZ-40/R4/M7/L remote transmission metal tube rotameter

Measurement range: water (2.5 ~ 6000) l / h; Air (0.07 ~ 2000) m3 / h (at 0.101025 MPa and 20 ℃).

Accuracy level: 1.5 and 2.5.

Range ratio: 10:1.

Working pressure: DN15 ~ 50, 4 MPa; DN80～100，1.6MPa。

Medium temperature: - 80 ℃ ~ 200 ℃ (lined F46 flowmeter 0 ℃ ~ 85 ℃).

Viscosity of liquid medium: DN15 ＜ 5MPa • s; DN25～100＜5mPa•s。

Connection mode: flange connection, threaded connection, etc; The flange adopts GB / t9119 8 ~ 10 standards.

Total length: DN15 ~ 100 250mm.

Material of measuring tube: ordinary type 1Cr18Ni9Ti, corrosion-resistant type Cr18Ni12Mo2Ti, 316L, 316 lining F46, etc. If users have special requirements, they can place special orders.

Output signal: two wire system (4 ~ 20) MA, three wire system (0 ~ 10) MA.

Linearity: 1%;

Power supply: DC 24 (1 ±) v.

Power consumption: 25 MW.

Ambient temperature: - 25 ℃ ~ 55 ℃.

Temperature effect: 0.5% / 10 ℃.

Load resistance: DC (0 ~ 10) MA (0 ~ 1) k Ω; (4～20)mA (0～600)Ω。

Wiring cable: RVVP 3 × 28/0.15。

Explosion proof grade: exib Ⅱ 2ct5 (Certificate No.: gyb03582u).

Equipped with safety barrier model: lb906.

Electric remote transmitter: k5wi-i or esk-i (two-wire system).