Plug-in vortex flowmeter
- cpfl:
Description
The LUCB type insert vortex flowmeter is mainly used for the flow measurement of medium medium of gas, liquid and steam in various industries and industries. It is characterized by small pressure loss, large measuring range and high accuracy, and is almost unaffected by the parameters such as fluid density, pressure, temperature and viscosity. No moving mechanical parts, so high reliability, small maintenance. Instrument parameters can be stable for a long time. The inserted vortex flowmeter adopts piezoelectric stress sensor, which has high reliability and can work in the operating temperature range of -20℃ ~ +250℃. There are analog standard signal, but also digital pulse signal output, easy to use with computer and other digital systems, is a more advanced, ideal flow meter. LUCB type plug-in vortex flowmeter is explosion-proof type, which conforms to relevant provisions of gb3836-83 "explosion-proof electrical equipment for sexual environment", and the explosion-proof mark is ExIIBT6. Works: plug-in vortex street flowmeter IS07145 according to the international organization for standardization (in determination of circular cross section in the fluid flow in the closed pipeline - on cross section point velocity measurement method), the embedded piezoelectric crystal vortex velocity, insertion of large diameter pipe industry, converts karman vortex frequency is proportional to the flow of electric current or voltage pulse signal or 4 ~ 20 MAC current signal. Characteristics of the instrument: 1. Volume flow and mass flow of steam, gas and liquid can be measured; 2. 2. No mechanical moving parts, high measurement accuracy, compact structure and convenient maintenance; 3. Small pressure loss and wide range of measurement; To a scale of 1:25; 4. Disturbance elimination circuit and anti-vibration sensing head are adopted; 5. Disturbance elimination circuit and anti-vibration sensing head are adopted to make the instrument have certain anti-environment vibration performance; 6. The temperature of measurable medium reaches +250℃. 7. The sensor can be disassembled without interruption, and the amplifier can be separated from the sensor (the separation distance is 15m);
Technical parameters:
Nominal classics (mm) | 250 ~ 1500 |
Instrument material | 1 cr18ni 9 ti |
Nominal pressure (Mpa) | PN1.6 Mpa; PN2.5 Mpa |
Temperature of medium under test (℃) | - 40 ~ + 250 ℃ |
Environmental conditions | Temperature: -10 ~ +55℃, relative humidity: 5% ~ 90%, atmospheric pressure: 86 ~ 106Kpa |
Precision grade | The value for + / - 2.5 |
Range than | "; 1:15 |
Drag loss coefficient | C < 2.6 |
The output signal | Sensor: pulse frequency signal 0.1-3000hz low level ≤1V high level ≥6V transmitter: 2-wire current signal 4-20mac |
Power supply | Sensor: +24VC transmitter: +24VC field display type: instrument with 3.2v lithium battery |
Signal line | KVVP3×0.3 (three-wire system), 2×0.3 (two-wire system) |
Transmission distance | 500 m or less |
Signal line interface | Internal thread M20 x 1.5 |
Explosion-proof grade | ExIIBT6 |
Protection grade | IP65 |
Allowable vibration acceleration | 1.0 g |
Model and function selection
Code name | CAL | |||||
020 | 200 mm | |||||
025 | 250 mm | |||||
030 | 300 mm | |||||
035 | 3500 mm | |||||
040 | 400 mm | |||||
045 | 450 mm | |||||
050 | 500 mm | |||||
-------- | -------- | |||||
200 | 2000 mm | |||||
Code name | Function 1 | |||||
N | No temperature and pressure compensation | |||||
Y | There is temperature and pressure compensation | |||||
Code name | Output type | |||||
F1 | 4-20ma output (two-wire system) | |||||
F2 | 4-20ma output (three-wire system) | |||||
F3 | RS485 communication interface | |||||
Code name | Measured medium | |||||
J1 | liquid | |||||
J2 | gas | |||||
J3 | steam | |||||
Code name | Function 2 | |||||
E | 2.5 on the Richter scale | |||||
T1 | The normal temperature | |||||
T2 | The high temperature | |||||
T3 | steam | |||||
P1 | 1.6 MPa | |||||
The P2 | 2.5 MPa | |||||
P3 | 4.0 MPa | |||||
1 | Internal 3.6v power supply | |||||
2 | C24V of power supply | |||||
B1 | Stainless steel | |||||
B2 | Carbon steel |