In what increments should gauges measuring pressures of 5 psig be calibrated?

When calibrating gauges that measure pressures of 5 psig, the increments should allow for accurate readings and fine adjustments. The pressure gauge's readability and precision are essential for ensuring safe operation and compliance with regulations. In this case, calibrating in 1/5 inch increments allows for a good balance between precision and practical usage.

This increment provides a suitable level of detail that enables operators to detect small variations in pressure while still being manageable for operational use. It ensures that the gauge can accurately reflect pressure changes without overwhelming the user with too many minute divisions that may not be necessary for the specific range being measured.

Other increments, like those that are larger or uneven, may lead to less precise readings. Larger increments can miss subtle changes in pressure, which are important in high-pressure systems where small fluctuations can lead to safety issues. Therefore, using 1/5 inch increments is advantageous for maintaining accuracy and reliability in monitoring pressure levels in high-pressure boiler systems.