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Johnson Controls DP140005U21D Differential Pressure Transmitter 0-5" WC 4-20mA Accuracy 0.5%

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Special Price $195.42 Regular Price $224.73
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SKU
DP140005U21D
The Johnson Controls DP140005U21D Differential Pressure Transmitter is used for accurate control of airflow and pressure in HVAC systems. It can work in a 0-5 inch water range and sends a 4-20mA signal with a 0.5 percent error to the control system to be regulated. It is a common usage in the air handling unit, duct systems and filtration assemblies used in residential and commercial buildings as a part of the monitoring system that can help regulate the balance of airflow. This operation of the system enables the HVAC systems to control the ventilation and stable pressure levels.
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HVAC Controls & Electrical, Transmitters
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Product Questions (2)
Customer Questions
What maintenance is required for the Johnson Controls DP140005U21D Differential Pressure Transmitter?

Regularly inspect the transmitter and its tubing for leaks, dust, or blockages. Verify electrical connections and calibration periodically to maintain accuracy. Proper maintenance ensures accurate pressure readings and prevents system errors. Handle the sensor carefully to avoid damage.

What are common issues with the Johnson Controls DP140005U21D Differential Pressure Transmitter?

  • Inaccurate or drifting pressure readings.
  • Clogged or leaking tubing.
  • Electrical connection faults.
  • Sensor not recognized by the system.

Installation Steps

Step 1: Turn off power to the system before installation to ensure safety.

Step 2: Remove the old transmitter and disconnect tubing and wiring.

Step 3: Mount the new transmitter securely in the same orientation.

Step 4: Connect the pressure tubing to the high and low ports, avoiding kinks.

Step 5: Wire the connections according to the manufacturer’s diagram.

Step 6: Restore power and verify the transmitter reads accurately.