Zhongce Sensing Insertion Electromagnetic Flowmeter: Parameter, Installation, and Selection Guide

In the field of industrial flow measurement, traditional flanged instrument installations require shutting down production and cutting into pipelines, resulting in significant economic losses. Henan Zhongce Sensing Technology Co., Ltd. has introduced Insertion-type electromagnetic flowmeter With its three core advantages—installation under pressure, wide-range adaptability, and easy maintenance—it has become the ideal metering solution for pipelines ranging from DN150 to DN3000.

I. Why Choose the Insert Type? Solving Three Major Challenges in Industrial Settings

Pain Points of Traditional Instruments ：

Production halt losses: The DN1200 pipeline renovation requires a 3-day shutdown, resulting in single-instance losses exceeding one million in the petrochemical industry.

Installation is complex: Large-caliber instrument lifting requires specialized equipment, posing significant safety risks.

Maintenance Challenges: Emptying Chemical Pipelines Triggers Risk of Medium Volatilization

Mid-Test Sensing Solution ：
✅   Pressurized Piercing and Installation : The ball valve's sealing design allows for installation to be completed in 30 minutes, with a working pressure of 1.6 MPa.
✅   Wide-caliber compatibility : Full-range coverage from DN150 to 3000mm
✅   Dual-electrode structure : Planar electrode design withstands impurity media

II. Core Technology: The Practical Foundation for Precise Measurement

1.  Low-frequency square-wave excitation technology

Adopts a 5 μS/cm low-conductivity startup design (Product Feature 2)

Eliminating fluid electrochemical interference boosts zero-point stability by threefold.

The output signal exhibits linearity of ±0.5% (when the full-scale flow rate exceeds 1 m/s).

2.  Graded Installation and Positioning Method

 # Pipeline Adaptation Algorithm  
Pipe diameter DN ≤ 400 mm : 
    Insertion depth =  H - 0.121* DN  # Central axis measures maximum flow velocity  
    Insertion depth =  H - 0.250* DN  # Average flow velocity captured at 0.25D 

3.  Modular Sealing Structure

304 Stainless Steel Compression Threaded Seat + Fluororubber Gasket

IP68 protection rating (compliant with GB-08-84 standard)

Operates reliably underwater at 3 meters for extended periods without leakage.

III. Typical Application Case: A Record of the Tap Water Plant Transformation

Project Background ：
The DN800 main water supply pipeline renovation in a certain city must be completed within 72 hours.

Implementation Plan ：

Adopting the ZN-CEIF-800 planar electrode type (ABS measuring head)

Install 12 monitoring points with pressure-tapping openings

Configuration with 4–20mA + frequency dual output (see Technical Specifications Section 4.12)

Running Performance ：

IV. Selection Guide: Configure Based on Medium Compatibility

Electrode Material Selection

Output Signal Configuration

Process control scenario: 4–20mA current output (load resistance 0–500Ω)

Total measurement scenario: 1–5 kHz frequency pulses (250–1.2 kΩ load)

Remote monitoring scenario: RS485 communication (MODBUS protocol)

5. Intelligent Operations & Maintenance: Parameterized Fault Diagnosis

Practical diagnostic approach based on Section 7.3 of the document:

6. Battery-Powered Solution: A Powerful Tool for Passive Scenarios

3.6V Battery-Type Advantages ：

DN800 caliber with a 26-month lifespan (1/15 Hz excitation)

-20℃ to 50℃ wide temperature range operation

GPRS wireless transmission, with cable-free installation under the manhole cover

Installation Key Points

Conclusion
Zhongce Sensing Insertion Electromagnetic Flowmeter with   "Non-stop installation and maintenance-free operation"   Redefining industrial metrology. When pressurized tapping technology eliminates production downtime losses, and when modular design reduces maintenance costs, China's manufacturing is delivering practical and efficient measurement solutions to industries worldwide.