CERTEON SN Display Type Micro Differential Pressure Transmitter

Contents

Micro Differential Pressure Transmitter User Manual

Model: SN Display Type Micro Differential Pressure Transmitter

1. Product Description

The CERTEON SN Display Type Micro Differential Pressure Transmitter is engineered for precise measurement of low differential pressure in air and non-corrosive gases. It is ideal for applications in HVAC systems, laboratory gas monitoring, industrial ventilation, and sealed container pressure control. This device integrates a high-sensitivity sensing element with advanced digital signal processing to ensure stable, accurate, and reliable performance.

Front view of the differential pressure transmitter with key features highlighted
Figure 1: Front view of the differential pressure transmitter, highlighting features like DC 10-30V power, 0.1W consumption, ±1% FS High Accuracy, -10kPa~10kPa Range, Fast Response, and High Stability.
Close-up of the LCD display screen on the differential pressure transmitter
Figure 2: Close-up view of the LCD display screen, providing real-time differential pressure readings. The device features low power consumption and includes complete pressure calibration and temperature compensation.

2. Specifications

The differential pressure sensor utilizes MEMS pressure sensors and dedicated conditioning chips. Advanced pressure sensing technology with high integration, low power consumption, and high-precision digital processing ensures accurate measurements.

Diagram of an advanced MEMS pressure sensor chip
Figure 3: Internal diagram illustrating the high-precision MEMS pressure sensor chip, a core component ensuring high accuracy and low power consumption.
Feature Specification
Power Supply 10-30 VDC
Power Consumption ≤1.5 W
Material Engineering plastic housing with metal barbed pressure ports
Protection Level IP54
Display Type Optional LCD display
Measuring Range ±100 Pa, ±1000 Pa, ±10000 Pa (various options available, e.g., 0-30Pa, 0-100Pa, 0-10kPa, -10kPa-10kPa)
Overload Pressure 5 kPa for ±100 Pa range, 10 kPa for ±1000 Pa range, 80 kPa for ±10 kPa range. Can withstand instantaneous pressure up to 2.5 times the rated value.
Accuracy ±1% of full scale
Long-term Stability 0.1% F.S typical, maximum 0.2% F.S
Compensation Temperature -10°C to 60°C
Storage Temperature -40°C to 70°C
Output Signals 4-20 mA, 0-5 VDC, 0-10 VDC, RS485 (optional, depending on model)
Electrical Connection 2-wire, 3-wire, or 5-wire (depending on output type)
Load Resistance ≥ 50 kΩ for voltage output, ≤ 250 Ω for current output
Pressure Port Metal barbed connector, 6.2 mm diameter
Cable Gland Suitable for cable diameter up to 8 mm

For a comprehensive list of available models and their specific output signals and measuring ranges, please refer to the product selection guide or contact support.

Differential pressure transmitter with icons for Pressure Range, Output Signal, and Operating Voltage
Figure 4: Visual representation of key selection criteria: Pressure Range, Output Signal, and Operating Voltage, which determine the specific model.

3. Setup

3.1. Preparation

  • Ensure the selected measuring range matches your application requirements.
  • Verify that the supply voltage corresponds to the model specification.
  • Check that the pressure medium is clean, dry, and non-corrosive gas.

3.2. Installation

  • Mount the transmitter securely on a stable surface.
  • Connect the high-pressure and low-pressure ports correctly using compatible tubing with 6.2 mm inner diameter.
  • Connect the power supply and signal wiring according to the selected output type and wiring configuration.

The housing is designed to be compact, and terminals are clearly labeled for straightforward wiring, simplifying the installation process.

4. Operation

4.1. Initial Power-Up

  • Switch on the power supply after verifying all connections.
  • Allow the device to stabilize for several seconds before taking readings.

4.2. Applying Pressure

  • Apply the differential pressure within the specified measuring range to the pressure ports.

4.3. Data Reading

  • If equipped with an LCD display, read the measured value directly from the screen.
  • For analog output models (4-20 mA, 0-5 VDC, 0-10 VDC), measure the corresponding current or voltage signal using appropriate instrumentation.
  • For RS485 models, configure communication parameters according to your system requirements and read data via the host controller.

5. Maintenance

5.1. Storage

  • Store the device in a dry and ventilated environment within the specified storage temperature range (-40°C to 70°C).
  • Avoid mechanical shock or vibration during transportation and storage.

5.2. Cleaning

  • Clean the exterior with a soft dry cloth.
  • Do not use solvents or corrosive cleaning agents.

5.3. Inspection

  • Periodically inspect pressure ports and tubing to ensure they are free from blockage or leakage.

6. Troubleshooting

This section provides general troubleshooting steps. For specific issues, refer to the detailed PDF manual or contact technical support.

  • No Display/No Output: Verify power supply connections and voltage. Ensure correct polarity.
  • Inaccurate Readings: Check if the measuring range matches the application. Ensure the pressure medium is clean and non-corrosive. Recalibrate if necessary (refer to advanced settings in the full manual).
  • Intermittent Readings: Inspect all electrical connections for looseness or corrosion. Check for strong electromagnetic interference in the environment.
  • Leakage at Pressure Ports: Ensure tubing is correctly installed and secured, and that the metal barbed connectors are not damaged.

7. Precautions and Safety Warnings

WARNING!

  • Risk of electric shock: Disconnect power supply before wiring or maintenance.
  • Risk of overpressure damage: Do not apply pressure beyond the specified overload limit.
  • Install and operate only by qualified personnel familiar with low-voltage electrical equipment.
  • Keep out of reach of children.
  • Use only within the specified voltage and pressure range to avoid permanent damage.
  • Do not exceed the stated overload pressure for the selected range.
  • Ensure correct polarity when connecting DC power supply.
  • Avoid installation in environments with strong electromagnetic interference.
  • The device is designed for non-corrosive gases only.
  • Do not expose the unit to condensation, excessive humidity, or direct water spray beyond its IP54 protection level.

Proper disposal: This product must be disposed of in accordance with the WEEE Directive for waste electrical and electronic equipment.

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

8. User Tips

  • The compact housing and clearly labeled terminals make wiring straightforward, simplifying installation.
  • This is generally considered a good sensor for its intended applications.
Differential pressure transmitter highlighting sensitive pressure response and strong stability
Figure 5: The transmitter features sensitive pressure response and strong stability, attributed to its imported micro-pressure core, digital pressure acquisition, and temperature compensation, ensuring a long service life.

9. Warranty and Support

For technical support, warranty claims, or further inquiries, please contact CERTEON Automation Store directly.

  • Store Name: CERTEON Automation Store
  • Positive Feedback: 99.3%
  • Store Rating: 4.7
  • Communication Rating: 5.0
  • Store Homepage: CERTEON Automation Store

You can also refer to the official user manual in PDF format for detailed information:

View User Manual (PDF)

10. Compliance Disclaimer

This document is provided for product instruction purposes only. It does not constitute legal advice. The seller is responsible for ensuring compliance with destination market regulations.

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