Chicago Stainless Equipment, Inc.

Accuracy is defined as the conformity of an indication to its true value. ASME specifies eight main accuracy "grades": 4A, 3A, 2A, 1A, A, B, C, and D. Pressure gauges that have a 3-2-3% accuracy is categorized as ASME Grade B, meaning that the lower and upper 1/4 of the scale has 3% accuracy and the middle 1/2 is 2% accurate.

The Over-Range Capability is how much pressure over the gauge's range that the gauge can be exposed to for a short period of time without damaging the instrument. For example, a 0 to 160 psi gauge can be exposed to 200 psi, (160 x 1.25), for a short period of time (less than a minute), without causing damage to the gauge.

This is the temperature range of the product being measured for which the pressure gauge is able to operate. For higher process temperature applications, please consolt factory.

This is the temperature range of the environment which the pressure gauge is able to operate within. If the pressure gauge should go above or below these temperature limits, the instrument will not operate properly.

This is the temperature range of the environment which the pressure gauge can be stored. If the pressure gauge should go above or below these temperature limits, the instrument might be damaged.