KMC-H Multi-Path Gas Ultrasonic Flow Meter

Measured media:Gases and gas mixtures 

Positioning method on the pipeline:

• inline (DN50... DN300);

• insertion type (DN100... DN1000).

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The measurable gas flow rate of the pipeline KMCH ultrasonic gas flow meter under working conditions:

Allows "overloading" with respect to flow rates in the range Qmax to 1.1 * Qmax while maintaining limits on the relative error.

InlineKMCH ultrasonic gas flow meterMeasurable gas flow under operating conditions:

Must correspond to the table, depending on the accuracy class of the flow meter and the design of the flow range.

Table - Flow rate Qmin, m3/h

Dynamic range: Standard (1: 100) and Extended (1: 400).

Volume measurement error under operating conditions:

The relative error of measuring volume flow and gas volume under operating conditions, including the error converted into pulse frequency or digital signal (δV, %), within the following limits (the values in brackets are the values during simulation verification method):

In the flow range 0.03 * Qmax ≤ | Q | ≤ Qmax:

In the flow range 0.01 * Qmax ≤ | Q | ≤ 0.03 * Qmax:

At flow rates below 0.01 * Qmax, the limit of the allowable error is reduced to a flow rate of 0.01 * Qmax:

Volume measurement error under standard conditions:

Self-diagnosis and signal quality control

Recommended length of straight line segment:

• Front flow meter: 20*DN (without flow shaper);

• Front flow meter: 10*DN (with flow shaper);

• Rear flow meter: 5*DN.

Solutions for aggressive and droplet environments

Capacitive keypad for use in Ex area configurations.

Absolute pressure of the measured medium: 0.05... 16.0 MPa, process connections comply with GOST, ANSI, DIN, etc. l Pressure loss

Built-in calculator for volume flow measurement under standard conditions.

Measurement and indication of gas temperature and pressure l Registration of indications, alarms, settings

Measurement of forward and reverse flow

Temperature range:

• Measuring medium: -70 to +120 °С;

• Environment: from -50 to +50 °С.

explosion-proof rating: 1ExdIIC (T4-T6) X

output signal:

• Frequency pulse;Discrete; 4-20 mA;

• RS-485 (Modbus RTU protocol ).

Power supply:20... 140VDC / 80... 264 VAC;