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TEMPERATURE/PRESSURE COMPENSATED GAS FLOW COMPUTER(MASS UNITS)

Format:EL4201

Using the most advanced electronic technologies, this digital instrument has been developed specifically to meet the most demanding steam flow measurement applications where accuracy is the prime requirement.
In response to the gas flowrate, temperature, and pressure information arriving from the sensing terminal, such as a flowmeter, it calculates gas flow, reduced to the equivalent volume flow under standard conditions, and totalizes the flow.
In addition to meter error curve correction capabilities, a correction factor "X" as a quadratic function of temperature and pressure is introduced, giving you increased freedom to optimize compensated calculation.
An analog output and instant flowrate (corrected for meter error, temperature, and converted to mass) output are additional provisions. With a model dedicated only to flow and pressure inputs, the instrument can also carry out calculations as a pressure compensator with fixed temperature value.

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FEATURES

●By simple key operations or by inserting an IC card in the slot, parameters such as meter factor, temperature and pressure ranges and other parameters in the connected flowmeter can be easily changed.
●Built around a microprocessor, the instrument carries out calculations entirely in digital signal processing circuits to achieve high degree of accuracy and reliability.
●Variables such as temperature and pressure can be reviewed on command with the front panel keypad even during operation.
●A nonvolatile memory (E 2 PROM) retains all parameters and variables. Totalized value can be reset upon power depending on setting.

Major specifications

Kinds TEMPERATURE/PRESSURE COMPENSATED GAS FLOW COMPUTER(MASS UNITS)
Type EL4201 (Density mass conversion)
Power supply for combined flowmeter 13.5, 24, 32 VDC (depends on combined flowmeter)
Display Total flow (before and after correction), total mass flow (after correction), instantaneous flowrate (before correction), instantaneous mass flowrate (after correction), temperature, pressure, etc.
Input signal Flowrate (pulse), temperature, pressure
Function Scaler, frequency division setting, F/I conversion, instrumental error correction, temperature correction, pressure correction, communication
Output signal Analog, pulse, alarm
Computation range Temperature –50 to +350°C (Span limited)
Pressure 0 to 3 MPa (Span limited)
Computing accuracy Total flow after correction ±0.2% RD or ±0.5%RD
Temperature ±0.1% of SPAN or ±0.3% of SPAN
Pressure ±0.1% of SPAN
Ambient temperature –10 to +50°C
Configuration Non-explosionproof
Power supply AC- or DC-powered

Specification

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Features
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