Pressure/Vacuum Calibrators
		Compact, completely self-contained unit designed for calibrating and testing pressure gauges, transducers, pressure switches, and other pressure-sensitive instruments up to 2,000 psi with an accuracy of ±0.25% of full scale. Self-contained portable secondary standards laboratory capable of generating calibration pressures up to 10,000 psi with an accuracy of 0.1% of the full scale range. The system consists of a control unit, a nitrogen supply cylinder, and a set of master gauges, hoses, and other items required for use in the field. The system is totally mechanical and does not require any source of electrical power. "Oxygen Clean" version (KNC P/N 3461-1-104) also available. A compact, completely self-contained system designed for calibrating pressure gauges, transducers, controllers, and other pressure-sensitive instruments up to 2,000 psi with an accuracy of ±0.1% including hysteresis error. A portable secondary standards laboratory capable of generating and controlling test and calibration pressures up to 10,000 psig with an accuracy of ±0.1% of the indicated value (IV) from vacuum to 10,000 psig. The Model 3689-A Precision Pressure Standard System is based on a digital pressure transfer standard that is unmatched in the industry for its accuracy: ±0.025% IV (reading) or 0.001 psi, whichever is greater. Auto-ranging circuitry incorporated in the Model 3689-A Precision Pressure Standard enables stepless readings from vacuum to 10,000 psi without input from the operator.