AI DDPG/DP1-1

Differential Pressure Indicators (AI-DP1-1, AI-DDPG)

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Product Description

Ace Instruments AI-DDPG/DP-1-1 differential pressure instrumentation range is designed for precise and reliable measurement of differential pressure in laminar air flow cabinets, clean rooms, biosafety cabinets, and air handling units. These digital readout gauges serve as an advanced replacement for analog Magnehelic gauges and are equipped with a clear 4 digit LED display for easy readings.

Both the DDPG and DP1-1 models feature a built-in sensor and a buzzer alarm with an acknowledgement facility to alert users of any process violation. Other key features include unit conversion between mm.W.C. and Pascals, offset provision to meet audit requirements, analog 4-20mA output, and 30 mm depth for easy installation on clean room modular walls. The gauges are also equipped with RS 485 Modbus communication for seamless integration with BMS/SCADA/PLC systems.

Ace Instruments cleanroom solutions are in compliance with global quality standards, including CE and ISO 9001:2015

Application 

The differential pressure range is widely used in various applications including clean rooms, laminar flow hoods, pharmaceutical manufacturing, laboratories, biosafety cabinets, HVAC systems, and hospitals. The range helps ensure proper airflow, prevent contamination, and maintain a safe environment by accurately measuring differential pressure.

Features

  • Convenient unit conversion between mm.W.C. and Pascals
  • Clear 4 digit LED display readout for easy readings
  • Seamless connectivity to BMS/SCADA/PLC via RS-485 Modbus communication
  • Built-in integrated high-speed differential pressure sensor for accurate measurements
  • Buzzer alarm with an acknowledgement facility to alert users of process violation

Specifications

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Frequently Asked Questions

1. What is a Differential Pressure Indicator?

A Differential Pressure Indicator is a digital instrument that continuously measures the pressure difference between two areas. It helps maintain proper airflow, prevents contamination, and ensures controlled environments such as cleanrooms, hospitals, and laboratories operate within specified pressure limits.

2. Why is differential pressure monitoring important?

Differential pressure monitoring is essential for maintaining cleanroom integrity. It ensures that air flows in the correct direction, helping prevent contaminants from entering critical areas and supporting compliance with cleanroom standards and quality procedures.

3. Which industries use AI-DP1-1 and AI-DDPG?

Our Differential Pressure Indicators are widely used in:

  • Pharmaceutical Manufacturing
  • Biotechnology Facilities
  • Hospitals & Operation Theatres
  • Isolation Rooms
  • Cleanrooms
  • Biosafety Laboratories
  • HVAC & Air Handling Units (AHUs)
  • Medical Device Manufacturing
  • Food & Beverage Processing
  • Semiconductor Manufacturing
4. What is the difference between AI-DP1-1 and AI-DDPG?

Both models provide accurate differential pressure measurement and are designed for cleanroom applications.They feature built in sensor,digital display,alarm functions and communication options.The best model depends on your application, display preference and integration requirements.Our team can you select the right solution.

5. Can these indicators replace analog Magnehelic® gauges?

Yes. AI-DP1-1 and AI-DDPG are designed as modern digital replacements for conventional analog Magnehelic® gauges, providing improved accuracy, digital display, alarms, and communication capabilities.

6. What pressure ranges are available?

Multiple pressure ranges are available, including positive, negative, and bi-directional ranges in both mm.W.C. and Pascals. Custom factory-set ranges can also be supplied to suit specific applications.

7. Can I switch between Pascals and mm.W.C.?

Yes. The indicator allows easy unit conversion between Pascals and mm.W.C. using the front panel controls, eliminating the need for manual calculations.

8. Does the indicator have alarms?

Yes. The instrument includes a built-in buzzer alarm that alerts users whenever the pressure exceeds the configured limits. An acknowledgement function allows operators to silence the alarm after it has been recognized.

9. Can alarm limits be customized?

Yes. High and low alarm set points can be configured according to your cleanroom or process requirements.

10. Does the indicator support Building Management Systems (BMS)?

Yes. AI-DP1-1 and AI-DDPG support RS485 Modbus communication, allowing seamless integration with BMS, SCADA, and PLC systems for centralized monitoring.

11. Is analog output available?

Yes. Optional 4–20 mA isolated analog output is available for integration with external monitoring and automation systems.

12. Does the indicator include a built-in pressure sensor?

Yes. Both models incorporate an integrated high-speed differential pressure sensor, eliminating the need for external transmitters in many applications.

13. How accurate are the measurements?

The indicators provide high measurement accuracy of ±0.5% of Full Scale, making them suitable for critical cleanroom and controlled environment applications.

14. Can the indicator monitor positive and negative pressure?

Yes. The instruments are suitable for both positive and negative differential pressure monitoring, depending on the selected measurement range.

15. What display does the indicator use?

The AI-DP1-1 and AI-DDPG feature a bright 4-digit LED display that provides clear visibility of pressure readings, even from a distance.

16. What are the key benefits of using a digital differential pressure indicator?

  • High measurement accuracy
  • Bright digital LED display
  • Built-in pressure sensor
  • High & low pressure alarms
  • Easy unit conversion
  • RS485 Modbus communication
  • Optional 4–20 mA output
  • Compact design for modular cleanroom walls
  • Easy installation and maintenance
  • Reliable long-term performance
17. What maintenance is required?

Very little maintenance is required. Periodic calibration, inspection of pressure tubing, and routine cleaning are generally sufficient to ensure reliable performance.

18. Why choose ACE Instruments Differential Pressure Indicators?
  • Over 30 years of instrumentation expertise
  • Trusted by pharmaceutical and healthcare industries
  • Designed specifically for cleanroom applications
  • Reliable digital replacement for analog gauges
  • Easy integration with BMS, PLC, and SCADA
  • High accuracy and long-term stability
  • Responsive technical and after-sales support

Pressure Measuring Range

-10.0 to +10.0 mm.W.C.
-25.0 to +25.0 mm.W.C.
-50.0 to +50.0 mm.W.C.
-0.0 to +100.0 mm.W.C.
-100 to +100 Pascals
-250 to +250 Pascals
0 to 10, 25, 50, 100, 200, 300, 500, 1000 Pascals (Any other range factory set as per customer specifications)

Accuracy: +/- 0.5% Of Full Scale

Display

Integrated 4 Digit Red LED 7 Segment Display 0.8”

Sensor

Integrated high-speed differential pressure sensor

Alarm

Built In Buzzer Alarm For Process Violation Alert

Communication

Isolated RS-485 Modbus Protocol

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