CERTEON MF6600 MEMS Digital Rotameter User Manual

1. Introduction

The CERTEON MF6600 MEMS Digital Rotameter is a compact gas flow measuring instrument that integrates MEMS mass flow sensing technology with a digital display interface. It is designed as a modern alternative to traditional mechanical rotameters, offering higher accuracy, improved repeatability, and advanced digital communication capabilities.

This instrument is ideal for monitoring clean, dry, and non-corrosive gases in laboratory, industrial, environmental monitoring, and gas distribution systems. It provides real-time display of instantaneous flow and cumulative flow, enabling precise process control and data management.

Figure 1: MF6600 MEMS Digital Rotameter

2. Specifications

The MF6600 series offers precise measurement and intelligent control with the following specifications:

2.1 Mechanical Dimensions

Figure 2: Mechanical Dimensions (all measurements in mm). Note: Battery compartment is an optional accessory.

3. Package Contents

Upon unpacking, please verify that the following items are included:

• MEMS Digital Rotameter (MF6600)
• Mounting fittings (e.g., 8mm quick push-in connector for BSPT 1/4" female thread)
• User documentation (this manual)

4. Setup and Installation

4.1 Preparation

• Verify that the selected model and flow range are suitable for your intended application.
• Ensure that the gas to be measured is clean, dry, and non-corrosive.
• Confirm that system pressure and temperature are within the specified operating limits.
• Install the instrument vertically unless otherwise specified.

4.2 Installation

• Connect the inlet and outlet ports according to the flow direction marked on the housing.
• Ensure airtight sealing using appropriate thread sealant where required.
• Avoid mechanical stress on the housing during installation.

Figure 3: Installation Guide. Incorrect installation may damage the product housing and is not covered under warranty.

4.3 Power Connection

• Connect a regulated 3.6-24 VDC power supply to the designated terminals, observing correct polarity.
• Alternatively, install the specified 3.6V lithium battery (ER14250) observing correct polarity.
• Ensure a stable electrical connection before powering on.

Figure 4: Two Power Supply Options. Both power supply options need to be purchased separately. A 3.6V wide-temperature lithium battery ER14250 provides around 3-6 months of battery life.

4.4 Installation Orientation

The MF6600 supports both horizontal and vertical installation, offering greater flexibility without directional limitations compared to traditional flow meters.

Figure 5: Supports Both Horizontal and Vertical Installation.

5. Operating Instructions

5.1 Power On and Display

• After power-on, the LCD screen will display instantaneous flow.
• Use the interface buttons (if available) to switch between instantaneous flow, cumulative flow, and configuration parameters.
• When connected via RS485, configure communication parameters such as address and baud rate according to system requirements.

Figure 6: LCD Screen with Backlight Display. Real-time display of instantaneous and cumulative flow, easy to read even in dim environments.

5.2 Data Reading

• Read the flow value directly from the display.
• For digital communication models, retrieve data through Modbus registers or the designated communication protocol.
• Ensure unit consistency during system integration.

Figure 7: Interface Description. Displays instantaneous flow (SLPM), cumulative flow (m³), and an instantaneous flow bar. Alarm signals (E4 for over-range, E5 for low battery) are shown in the top two digits.

5.3 Shutdown

• Turn off the external power supply before disconnecting wiring.
• Depressurize the pipeline before removing the instrument.

6. Storage and Maintenance

6.1 Storage

• Store the device in a dry and clean environment within the specified storage temperature range (-20 to +65°C).
• Protect from dust and mechanical damage.

6.2 Cleaning and Calibration

• Clean the exterior using a soft dry cloth. Do not use solvents or abrasive cleaning agents.
• Periodically inspect seals and connections for leakage.
• Recalibration is recommended periodically according to quality control requirements or industry standards.

6.3 Battery Removal

• Remove the battery if the instrument will be stored for an extended period to prevent leakage.

7. Troubleshooting

This section provides general guidance for common issues. For complex problems, please contact customer support.

• No Display/Power: Check power supply connection, battery polarity, and ensure the power source is within the 3.6-24VDC range.
• Inaccurate Readings: Verify the gas type matches the calibration, ensure the gas is clean and dry, check for leaks in the system, and confirm correct installation direction.
• Communication Issues (RS485): Check wiring, communication parameters (baud rate, address), and ensure proper Modbus protocol implementation.
• Alarm E4 (Over-range): The flow rate exceeds the configured maximum range. Reduce flow or verify the correct flow range model is used.
• Alarm E5 (Low Battery): Replace the ER14250 lithium battery.

8. User Tips

• For optimal accuracy, ensure the flow meter is installed in a section of pipe with sufficient straight runs upstream and downstream to minimize turbulence.
• When using battery power, keep a spare ER14250 battery on hand, especially for critical applications, as battery life can vary.
• Regularly check the mechanical connections for tightness to prevent gas leaks, which can affect measurement accuracy.

9. Precautions and Safety Warnings

9.1 General Precautions

• Use only within specified pressure and temperature limits.
• Do not use with flammable, explosive, toxic, or corrosive gases unless explicitly approved by the seller.
• Avoid exposure to strong vibration, shock, or electromagnetic interference.
• Ensure correct flow direction during installation.
• Do not disassemble or modify internal components.
• Replace batteries only with the specified type.
• Prevent condensation inside the measuring channel.

9.2 Warning Information (EU Market Reference)

WARNING!

• Pressurized gas hazard: Ensure secure installation before applying pressure.
• Electrical hazard: Use only compliant low-voltage DC power supplies.
• Improper gas use: Improper use with incompatible gases may result in equipment damage or safety risk.
• Lithium battery risk: Risk of fire or explosion if improperly replaced.
• Keep out of reach of children.
• Proper disposal: Follow WEEE directives for electronic waste and applicable battery recycling regulations.

Note: The above warning information is for reference only. Final warning language must comply with the official language requirements of the destination EU country.

10. Frequently Asked Questions (FAQs)

Q1: Can this flow meter be used for oxygen?

A1: Yes, this flow meter is fully compatible with oxygen, as well as nitrogen, argon, and compressed air.

Q2: Does it support PLC communication?

A2: Yes, it supports RS485 (Modbus) output, enabling stable and efficient communication with PLC systems and PC-based control systems.

Q3: Can I customize the flow range or connection type?

A3: Yes, custom flow ranges and fitting connection types are available. Please contact us before placing your order to confirm your specific requirements.

Q4: What is the power supply requirement?

A4: The device can be powered by a 3.6-24V DC external power supply or an internal 3.6V lithium battery (ER14250).

11. Support and Contact Information

For technical consultations, bulk orders, or any specific requirements not covered in this manual, please feel free to contact us. We are here to help!

• WhatsApp: +86 17306293153
• Email: lunachina8866@gmail.com

You can also refer to the official user manual PDF for additional details: View User Manual (PDF)

Figure 8: Contact Information