YLQ-40 Vapor Recovery Flow Meter

Oil and gas recovery system applications

This product implements standards

National regulations JJG 663-2005 "Gas Volumetric Flow meter Calibration Regulations", European standard EN 124800 and enterprise standard Q/ZHS 01-2019 "Gas Roots Flow meter". Comply with GB 3836.1-2010 "Explosive Environment No.Part 1: General Requirements" and GB 3836.4-2010 "Explosive atmospheres Part 4: Equipment protected by intrinsically safe "i"".

Accuracy level

Level 1.0 0.2Qmax ~ Qmax: ±1.0% Qmin ~ 0.2Qmax: ±2.0%

Level 1.5 0.2Qmax ~ Qmax: ±1.5% Qmin ~ 0.2Qmax: ±3.0%

Note: Products not otherwise specified leave the factory at level 1.5, and other accuracy levels will be specified when ordering.

Standard conditions:

P=101.325kPa T=293.15K.

Environmental conditions

(1) Ambient temperature: -20℃ ~ +50℃;

(2) Relative humidity: 5% ~ 95%;

(3) Atmospheric pressure: 70kPa ~ 106kPa.

Media requirements

(1) The flow rate, pressure and temperature range of the fluid to be measured should comply with the provisions of this manual;

(2) Suitable media for measurement: natural gas, city gas, propane, nitrogen, industrial inert gas and other non-corrosive gases.

Warning: It is strictly prohibited to measure explosive gases such as acetylene gas, oxygen or hydrogen.

The basic parameters such as the nominal diameter, flow range, and starting flow rate of the flow meter are shown in the table below.

operating power:

(1) Power supply: (12 ~ 24) VDC, ripple ≤ 50mV, safety barrier power supply is required when using intrinsically safe functions;

(2) The intrinsic safety parameters are as follows: between 24V+ and GND: Ui=28V, Ii=93mA, Pi=0.65W, Ci=0.047uF, Li= 0.

output signal:

Pulse signal output (three-wire system): Pulse signal output amplitude high level ≥ (V outside -2) V, low level ≤ 0.5V, driving capability ≥ 20mA. Transmission distance ≤50m, powered by external power supply. The signal format can be set as:

(1) Turn off pulse output;

(2) Directly amplify and output the working condition pulse signal detected by the flow sensor;

(3) The working condition pulse signal detected by the flow sensor is amplified and output after linearization correction processing;

(4) Output a frequency signal proportional to the standard instantaneous flow rate. The full-scale frequency value corresponds to the upper and lower limits of standard flow rate FH and FL. The full-scale frequency value is 10kHz.