PT420A Series
The PT420A Series transducer is a +/- 0.25% sensor ideal for melt pressure applications requiring high accuracy, simple installation, repeatability and reliability. The PT420A transducers provide the industry standard 3.33 mV/V signal designed to work with most pressure indicators. The PT420A comes equipped with an eight pin Bendix connector. Optional thermocouple or RTD configurations are available to provide melt temperature. The PT420A features a 1/2-20 UNF thread for installation in standard transducer mounting holes and can be supplied with a variety of other electrical connections if desired.
The PT420A Series includes models PT420A, PT422A, TPT420A, TPT432A and TPT422A.
PERFORMANCE CHARACTERISTICS
Output: 3.33 mV/V +/- 2.0%
Input Voltage: 10 Vdc recommended, 12 Vdc maximum
Combined Error: +/- 0.25% FSO, (Including Linearity, Repeatability & Hysteresis) +/- 0.5% FSO for 500, 750, 1,000 psi ranges
Repeatability: +/- 0.1%FSO, +/- 0.2% FSO for 500, 750, 1,000 psi ranges
Configuration: Four-arm bonded foil Wheatstone bridge strain gage
Bridge Resistance: Input: 345 Ohms minimum, Output: 350 Ohms +/- 10%
Over Pressure: 2 X FSO or 35,000 psi whichever is less
Zero Balance: +/- 5% FSO
Internal Shunt Calibration (R-Cal): 80% FSO +/- 0.5%
Insulation Resistance: 1000 megohms @ 50 Vdc
TEMPERATURE & MECHANICAL CHARACTERISTICS
Max Diaphragm Temperature: 750oF (400oC)
Zero Shift (due to temperature change): 15 psi/100oF Typical (27 psi/100oC)
Electronics Operating Temperature: 250oF (121oC)
Zero Shift Due to Temperature Change: +/- 0.01% FS/oF max (+/- 0.02% FS/oC max)
Sensitivity Shift Due to Temperature Change: +/- 0.005% FS/oF max (+/- 0.01% FS/oC max)
Mounting Torque: 500 inch/lbs. maximum
Standard Wetted Parts: Dymax® coated 15-5 PH SST