Base Model: 43AP-FA42CPSS Reference: 3-1B3 AAux. Spec.: IAS-A PB-AM CERT-E MTS43APFUNCTION: Continuously Indicates And Controls Pressure, Vacuum, Temperature, And Flow Using Directly Connected Measuring Elements.FMOUNTING: Field; For 2-Inch (50 mm) Vertical PipeA4CONTROL: Proportional 4 To 400% Plus Integral (Reset) 0.01 To 50 Minutes Per Repeat2OUTPUT SIGNAL AND GAUGE: 3 To 15 psi Signal, 30 psi GaugeCAUTOMATIC/MANUAL INTERNAL TRANSFER SWITCHING: Bumpless With 2-Position Switch, Balance Gauge, And RegulatorOPTIONAL FEATURE(S) INCLUDED:AUX. SPEC.: IAS-A - Air Supply SetAir Supply Set - Integrally Mounted Adjustable Regulator And 30 psi Gauge.AUX. SPEC.: PB-AM - K-Monel HelicalElement, Pressure Measurement, K-Monel Helical.AUX. SPEC.: CERT-E - Calibration CertificateThe certificate shows calibration data for the instrument along with statement that calibration test equipment used is traceable to the National Institute of Standards and Technology (NIST). NIST was formerly called the National Bureau of Standards (NBS).AUX. SPEC.: MTS - Supplemental Instrument TagSupplemental Instrument Tag, 3.4 x 1.5 Inch (90 x 40 mm) Stainless Steel Fastened To Instrument With A Stainless Steel Wire. Markings Can Be Up To 10 Lines, 40 Characters Or Spaces Per Line.1Calibrated Range0-450psigScale Range0-450psig