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Working Pressure Range |
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The maximum allowable pressure at which a system or piece of equipment is designed to operate safely. The extremes of this range should be determined in accordance with the expected pressure range the device must operate within. It is common practice that this value should not exceed 75% of the devices maximum rated range. For example: if the device has a maximum rated range of 100 psi then the working range should not exceed 75 psi. |
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Search Logic: |
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User may specify either, both, or neither of the limits in a “From – To” range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. |
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Dial Size: |
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The diameter of the gauge. The dial size is usually determined by the readability requirements; larger for remote reading and smaller where the gauge is close to the operator. Generally, a requirement for higher accuracy dictates a larger dial size for display of readable small pressure scale increments. |
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Search Logic: |
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User may specify either, both, or neither of the “At Least” and “No More Than” values. Products returned as matches will meet all specified criteria. |
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Vacuum Range |
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Vacuum range is the span of pressures from the lowest vacuum pressure to the highest vacuum pressure (e.g., from 0 to 30 inches of mercury VAC). |
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Search Logic: |
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User may specify either, both, or neither of the limits in a “From – To” range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. |
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Operating Temperature |
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The full-required range of ambient operating temperature. |
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Search Logic: |
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User may specify either, both, or neither of the limits in a “From – To” range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria. |
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Accuracy |
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The difference (error) between the true value and the indication expressed as percent of the span. It includes the combined effects of method, observer, apparatus and environment. ASME B40.1 and DIN accuracy grades are frequently used: Grade 4A (0.1% Full Scale) Grade 3A (0.25% Full Scale) Grade 2A (0.5% Full Scale) Grade 1A (1% Full Scale) Grade A (1% middle half, 2% first and last quarters) Grade B (2% middle half, 3% first and last quarters) Grade C (3% middle half, 4% first and last quarters) Grade D (5% Full Scale) Measurement Accuracy (% of Full Scale). In cases where the accuracy differs between middle span and the first and last quarters of the scale, the largest % error is reported. |
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Search Logic: |
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All matching products will have a value less than or equal to the specified value. |
Uncategorized
Uncategorized
Anup Naskar –
Very good product
MANGAL PRAMANICK –
NICE