Mechanical vs. Solid State Pressure Switches
Publisher: Onyx Valve Co.
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Overview: Advantages of mechanical and solid state pressure switches are compared in this paper, which explains the principle of operation of a typical mechanical bourdon tube switch and a solid state pressure switch. Accuracy offered by mechanical bourdon tube switch is compared with that of a solid state pressure switch, detailing the differences in the dead-band adjustment mechanisms of these switches. Mounting flexibility offered by solid state switches compared to mechanical switches is stated, highlighting over-pressure tolerance and cost benefits offered by solid state switches. The paper also lists the advantages of mechanical pressure switches with reference to their power requirements.
| TABLE OF CONTENTS |
| 1. | Principle of Operation | 1 |
| 2. | Accuracy | 1 |
| 3. | Dead-Band Adjustment | 2 |
| 4. | Attitude | 2 |
| 5. | Over Pressure | 2 |
| 6. | Price | 2 |
| 7. | Power Requirements | 3 |
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