WIKA High Precision Pressure Gauge Series 300-275G

Convenience in the Low Pressure Ranges
Available in the low-pressure ranges (10" to 400" water), the Series 300 is a reliable mechanical indicator, which reads out gauge pressure directly.

Compact for Space Saving
The Series 300 has a dial only 2¾" in diameter and a scale 7" long. Thus the gauge is compact, yet offers adequate readability.

Calibration is Traceable to National Institute of Standards and Technology (NIST)
A computer assisted plotter marks calibration points and the graduations between them on each dial This produces a scale which matches precisely the characteristics of its own pressure capsule and mechanism. These are certified traceable to NIST.

Performs Better than the Rated Accuracy Of 0.3% of Full Scale
A readable scale, individually matched dials and mechanisms, excellent repeatability, and a precision mechanism add up to an accuracy of 0.3% and a sensitivity of 0.2% of full scale. These figures are the minimum performance that can be expected. After rigorous testing, any Series 300 gauge that fails to better the rated accuracy is rejected.

Sensitive, Rugged, and Overpressure Protected

• A small, sensitive capsule responds quickly to minute pressure changes
• Low-inertia parts throughout and a linkage containing flexures and jewel bearings mean high sensitivity. Yet the mechanism is rugged and resists damage by on-the-job handling
• The case is anodized aluminum with a high-strength tempered glass window
• A blowout plug in the back of the case is designed to relieve at the slightest pressure build-up
• Overpressuring the instrument up to 10% above its full scale range will not damage the mechanism nor affect accuracy