ACE INSTRUMENTS AI-2200 Pneumatic Hand Pump Instruction Manual

AI-2200 Pneumatic Hand Pump
Instruction Manual

Ace Instruments
Plot No: 5-5-35/205A, Shaktipuram Prashanthi Nagar,
Industrial Estate, beside Manikanta Weigh Bridge,
Mythri Nagar, Kukatpally, Hyderabad, Telangana 500072

Safety Information

DPI-2200 Pneumatic Hand Pump is capable of generating pressure up to 30 BAR. It is designed with function, reliability, and safety in mind. It is the user’s responsibility to use it in conformance with safety norms. For safe operation, please pay attention to the alert boxes throughout the manual.

WARNING
To ensure the safety of the users and to avoid damage to this apparatus, please ensure the following:

1. DO NOT operate this to generate pressure above 30 BAR..
2. Use this unit only for Testing work
3. Use this unit in environments specified in the manual
4. The life of spares such as O-rings can be shortened by exposure to atmospheric conditions. For storage use an airtight container.
5. Never remove the SS fittings fitted in the pump. These are fitted and tested for leakage. Use of Teflon tape on these parts after removal and refixing will damage the threads  in the pump and our guarantee will become null and void

To avoid accidents due to sudden release of pressure :

1. Competent, qualified personnel who are trained in using such pressure-generating devices alone use this pump..
2. Release the pressure before removing the test and master gauges.
3. Use safety goggles while using the hand pump.

Introduction

The Model DPI-2200 is a Pneumatic Hand Pump capable of generating pressure up to 30 BAR and vacuum up to 0.9 BAR and used for the calibration of gauges and switches.

Technical Specifications

1.2 GUIDELINES FOR SAFE USE

• Use the Hand Pump only for calibration.
• Clean the gauge inlet thread and the inlet hole for any dirt or oil before connecting with the pump. These can choke the pump.
• Always wear protection gear while doing the calibration.

Unpacking

Visually check the exterior for any damage to the shipping carton box. Open the carton box and check the receipt of the following along with the pump.

• DPI-2200 Pneumatic Hand Pump
• Spare fittings
• Spare O-rings
• Flexible hose

TECHNOLOGY USED IN HAND PUMP

Principles Of Operation
The principle of operation is similar to a pump we use at home to fill the air in the cycle tube. A piston moves back and forth in a cylinder and fills a chamber with air. Two nonreturn valves are fitted inside and both operate in opposite directions, which means at any point of time during operation only one NRV is open. The piston is moved inward and outward movement by the operation of the handle. A high-tension spring placed over the piston stem ensures the return of the piston to its home position. With each pumping, the pressure of the air inside the closed chamber builds up.
The user can generate pressure by hand up to 20 BAR and the pressure is further increased by the priming cylinder. As both test and master gauges are fitted to the pump , both should show the same value. If the test gauge is showing differently, the gauge is adjusted to show correctly.

Various parts of the hand pump

3.1 CALIBRATION OF PRESSURE /VACUUM GAUGE :

1. Fix the Master Gauge to one of the ports. Use of the O-ring ensures hand tightness is sufficient.
2. Fix the test gauge at the other port in the same way.
3. Select the mode of calibration. Pressure mode or Vacuum mode by pushing the mode pin. Use a small screwdriver for doing this.
4. Tightly close the release valve and place the priming cylinder in the outermost position while using it in pressure mode or in the innermost position while using it in vacuum mode
5. Generate the pressure/vacuum by operating the handle.
6. When the required value is reached, fine-tune the value by using the priming cylinder. Note the value shown by both the Test and master gauge.
7. Similarly, note the value at another range and if required adjust the test gauge.
8. When the testing is over, release the pressure before removing the gauges.

Preventive Maintenance
Replace O-rings when required. Continuous use of the same O-rings will result in leakage which can not be arrested.

Troubleshooting Section

2. Piston seal damaged
3. Mode selection wrong| 1. Arrest leakage
2. Replace piston seal
3. Select the mode properly
Of the 2 gauges, only one gauge shows a change in pressure/Vacuum and the other do not show any change| 1. Block in the line| 1. Check and clear blockage

ACE INSTRUMENTS
(An ISO 9001 – 2008 Certified Company ) Plot No.77, Shakupuram,
Industrial Estate Kukatpalty, Prashantinagar Hyderabad-500072, INDIA.
Phones: .91-40-23078848. 23078849
Email: [email protected]
Website: www.alwaysace.com

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