BY-LWGY Oxygen Flow Meter

LWGY Oxygen Flow MeterProduct Introduction:
1、 Purpose:
The BY-LWGY oxygen flowmeter is paired with a display instrument to form a turbine flowmeter. Sensors have the characteristics of high accuracy, good repeatability, long lifespan, and simple operation. It can be widely used in industries such as petroleum, chemical, metallurgy, and papermaking to measure the instantaneous flow rate and total volume of liquids.
BY Features:
Low pressure loss.
Has high resistance to electromagnetic interference and vibration, reliable performance, and long working life.
Adopting ultra-low power single-chip microcomputer technology, the whole machine has strong functions, low power consumption, and excellent performance. Intelligent flow display with non-linear accuracy compensation function. The accuracy of the correction formula is better than ± 0.02%.
The instrument coefficient can be set online through buttons and displayed on the LCD screen, which is intuitive, clear, and highly reliable.
Using EEPROM for power down protection of accumulated flow and instrument coefficient. The protection period is greater than 10 years.
BY Main Technical Parameters:
Flow meter specifications, basic parameters, and performance indicators (see Table 2)
Accuracy: Level 0.5, Level 1.0;
Usage conditions:
1. Environmental temperature -20 ℃~50 ℃;
3. Temperature of the tested medium: -20 ℃ to 120 ℃;
4. Atmospheric pressure: 86Kpa to 106Kpa;
5. Explosion proof grade: ib Ⅱ BT4
Signal transmission distance: The distance from the sensor to the display can reach 1000m.
4、 Electrical characteristics:
1. Display mode:
(1) LWGY remote transmission display: pulse output (equipped with display instrument);
(2) LWY on-site display: LCD cumulative flow rate, unit (m ³)
LCD display instantaneous flow rate, unit (m ³/h)
(3) LWGB turbine flow transmitter: (equipped with display instrument).
2. Output function:
(1) LWGY pulse output, p-p value determined by the power supply;
(2) LWY can have pulse output or 4-20mA two-wire current output;
(3) LWGB 4-20mA two-wire current output.
3. Power supply:
（1）LWGY：DC5~24V；
(2) LWY: The 3V lithium battery installed inside the instrument can be used continuously for 3-5 years;
（3）LWGB：DC24V。
5、 Instrument structure and installation method:

1. The instrument installation adopts flange connection, threaded connection and clamping type;
2. During installation, the direction of liquid flow should be consistent with the arrow direction indicated on the sensor housing, and the upstream straight pipe section should be ≥ 6DS, and the downstream straight pipe section should be ≥ 5DS (DS is the measured inner diameter of the tested pipeline).
3. Sensors should be kept away from external magnetic fields. If unavoidable, necessary measures should be taken;
4. In order to avoid affecting the normal transportation of liquids during maintenance, bypass pipelines should be installed outside the straight pipe sections at both ends of the sensor (as shown in Figure 4);
5. When installing sensors outdoors, please ensure that the amplifier plug is waterproofed;
6. The wiring of sensors and display instruments should be selected according to the power supply of the amplifier. Please refer to the relevant "user manual" for details.
6、 Model and specification description:
LW X X- XXX XX
LW stands for Turbine Flow Sensor;
X X: GY represents remote display type;
Y represents on-site display type;
GB stands for transmitter;
XXX: Indicate the diameter of the turbine flow sensor;
XX: B represents explosion-proof type; E represents clamping type;
For example: LWGY-50-BE: indicates a 50mm diameter, explosion-proof, clamp type turbine flow sensor;
LWGB-50: Refers to a turbine flow transmitter with a diameter of 50mm.