4033 Directional Preamplifier for Passive Magnetic VRS Sensor THUNDERBIRD INTERNATIONAL CORPORATION PRODUCT DESCRIPTION SPECTEC's directional preamplifier for passive magnetic VRS sensors is designed to convert the sinusoidal signals from two matching magnetic VR type sensors into stable square wave pulses. It provides relative directional data from the two sensors through the signal out terminal and LED indicators. For prover applications, an (x2) output is provided, which is derived from the input of Coils A & B. It is designed to fit a GAUL-16 or similar standard explosion proof juction box. Output Mode Selection Switch For Class I, II, III, Division 1 applications refer to IS4033. For Class I, Division 2 applications refer to N4033. SPECIFICATIONS Supply Voltage & Current: 7.5-36Vdc @  3mA for 0-5Vo 13-36Vdc @  12mA for 0-12Vo 3.6Vdc min. @  20mA for 0-Vs See options below (@ < 20mA sink) Frequency Range: ~5 Hz to 10 kHz Up to 40 kHz with increased signal Input Sensitivity: Output Mode: Forward (A before B): 0 Vdc Reverse (B before A): 5 Vdc Rise/Fall Time: Temperature Range: Plastic housing Solid Epoxy Encapsulation Output Voltage: Only Channel A provides a signal in Forward Direction, and only Channel B provides a signal in Reverse Direction 0.50" A and B: Both Channel A & B always (13mm) provide a signal FEATURE SELECTION 4033x x Signal Options TERMINAL CONNECTIONS 1 - Supply Voltage 2 - Common 3 - Direction 4 - Output Signal A 5 - Output Signal B 6 - Output Signal x2 SENSOR POSITIONING ELECTRICAL 360° 0 - 40 mVpp (Standard) 1 - 12 mVpp (High) For explosion proof junction box refer to bulletin 4001. 7 - Coil A +(white) 8 - Coil A - (black) 9 - Coil B +(white) 10 - Coil B - (black) 1 - Standard (A or B Output Mode) 2 - Standard (A or B Output Mode) w/ LED 3 - Selectable Output Mode 4 - Selectable Output Mode w/ LED Output Signal Input Sensitivity Position sensors relative to target electrically 90° (±30°) out of phase.