Endress+Hauser 5L4C1F-AALHA0DQA120A Promag 400 L Flowmeter

1.General Description of endress hauser promag 400 l flow meter

The Endress+Hauser Promag 400 L Flowmeter (5L4C1F-AALHA0DQA120A) is a modern electromagnetic flowmeter. The design ensures accurate and reliable flow measurement of conductive liquids.

This 6" 150# Promag 400 L flowmeter serves the water and wastewater industry. It also works for chemical, food and beverage, and pharmaceutical applications. It provides reliable results, even in tough process conditions.

The Endress Hauser 5L4C1F-AALHA0DQA120A model provides reliable measurements with consistent accuracy. It has advanced diagnostics that help find both systematic and random errors. This ensures each measurement is as close as possible to the true volume flow.

The Promag 400 L has smart electronics and temperature compensation features. These help it perform well from 0 to 80°C (32 to 176°F). It provides similar results and consistent precision, even with changing process conditions.

2.How Accurate Is the Promag 400?

People recognize the Endress+Hauser Promag 400 L for its high accuracy and stable performance. In standard setup, it has a volume flow accuracy of ±0.5% of reading plus 1 mm/s. The volume flow option (Flat Spec version) improves this to ±0.2% of reading plus 2 mm/s.

This device minimizes both systematic and random measurement errors, resulting in accurate and reliable flow readings. Accuracy means how closely a measured value matches the true flow rate. The Promag 400 achieves this with advanced electrode design and digital signal processing.

Even when installed without straight piping, it gives consistent and repeatable data points. This helps improve accuracy and ensures reliable operation in important flow measurement tasks.

3.What Is the Conductivity Range of the Electromagnetic Flow Meter?

The conductivity range defines the minimum fluid conductivity necessary for dependable measurement. Most electromagnetic flow meters need fluids with conductivity over 5 µS/cm. However, the Endress+Hauser Promag 400 L (5L4C1F-AALHA0DQA120A) can measure liquids with conductivity as low as 1 µS/cm.

This makes it ideal for water and wastewater, slurries, acids, and bases where accurate monitoring is essential. By maintaining proper conductivity, the flowmeter ensures a stable electromagnetic field and eliminates measurement errors, producing similar results across repeated tests. Its strong signal processing gives accurate and reliable readings. This works well even with different flow and temperature conditions, usually between 20 to 90°C.

4.Product Specifications and Parameters

l Model: 5L4C1F-AALHA0DQA120A

l Measurement Principle: Electromagnetic

l Nominal Size: 6" 150# flange connection

l Accuracy: ±0.2% of measured value (volume flow option), ±0.5% standard

l Process Temperature Range: 0 to 80°C (32 to 176°F); typical operation 20 to 50°C

l Pressure Rating: Up to 40 bar

l Output Signals: 4–20 mA, pulse, frequency, and HART® protocol

l Communication: PROFIBUS DP, FOUNDATION™ Fieldbus, or Modbus RTU

l Material: PTFE or PFA liner, stainless steel body

l Power Supply: 100–240 VAC or 20–28 VDC

5.Application Fields

A. Water and wastewater treatment

 B. Chemical and petrochemical industries

 C. Food and beverage production

 D. Pharmaceutical manufacturing

 E. Pulp and paper industry

6.Device Properties

l Reliable measurement at constant accuracy

l High accuracy and repeatability with minimized measurement error

l Designed to reduce systematic and random errors

l Robust construction for harsh environments

l Easy installation and maintenance

l Wide communication compatibility for seamless integration

7.Benefits

l Ensures accurate and reliable flow measurement

l Delivers consistent results and similar data points across testing conditions

l Maintains accuracy through temperature fluctuations (20 to 90°C)

l Reduces measurement errors and improves long-term performance

l Enhances process control and operational efficiency

8.Similar Models

l Promag 50

l Promag 53

l Promag 55

l Promag 10

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