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PA1001A Preamplifiers
The PA1001A series preamplifiers allow convenient interfacing with process measuring devices and digital electronics. This series of preamplifiers/signal conditioners is available in both variable reluctance (VR) and RF sensor configurations as well as a combination unit that provides user selection of either VR or RF sensor input. Optional features include factory installed pulse scaling and field or factory installed analog output modules. The analog output module provides both current and voltage outputs proportional to RPM, flowrate, etc.
Features and Specifications
Input Power * voltage: 8 to 30 Vdc Optional Features * current draw: 125 mA @ 24 Vdc (all options equipped) Pulse Scaling * reverse polarity protected * divisions of 2, 4, 8, 16, 32, 64, or 128 (user selectable) Analog Output Module RF Sensor * modulation carrier frequency: 20 KHz Current Output Input * input frequency: 2 Hz to 5 KHz, user-adjustable trigger * accuracy + 0.05% of full-scale + 200 PPM/C level to eliminate false pulsing * available range 4 to 20 mA * carrier adjustment to allow precise tuning of carrier * output suitable for driving, floating or grounded loads signal to physical environment (e.g., air gap, wall * maximum loop impedance 500 ohms thickness) * response time 3 seconds for 10 to 90% * maximum air gap: 0.160" Voltage Output * preferred coil inductance: 1.0 mH + 10% * accuracy: + 0.05% of full-scale + 200 PPM/C * maximum distance from sensor to preamp: 100 feet * available range: 0 to 5Vdc or 0 to 10Vdc (user selectable) VR Sensor * input protected, RF and band pass filtered * impedance: less than 10 ohms. Input * input frequency: 0 to 10 KHz, user-adjustable trigger * response time: 3 seconds for 10 to 90% level to eliminate false pulsing (higher frequencies also available) Temperature * operating: -40 to 185F (-40 to 85C) * trigger sensitivity: 4 mV RMS minimum Range * storage: -40 to 302F (-40 to 150C) NOTE: at 4 mV frequency range 10 Hz to 3KHz * input impedance: 40K ohms (nominal) Enclosures * unit is intended for mounting in a condulet box. Enclosure is * maximum input signal: 600 volts RMS not required but recommended to protect unit from * maximum distance from sensor to preamp: 100 feet moisture, dirt, etc. * optional explosion proof box available upon request Pulse ALL OUTPUT OPTIONS ARE USER SELECTABLE * enclosure requirements: GUAx16,26,36 or equivalent Output * open collector Vmos transistor, maximum OFF state Options voltage 30 Vdc; maximum ON current 0.40 amp Approvals * CE compliant to EMC Directive 89/336/EEC for use in * TTL/CMOS fanout of 5 TTL/CMOS loads residential, commercial, light industrial and heavy industrial * 0 to 10 Vdc square wave environments * square wave tied to input voltage Warranty * unconditional 1 year warranty if used within specifications Physical * board diameter: 2.75" Dimensions * center mounting holes: 2"and 2.5" * height (standard): 0.625"(NOTE: with anolog option add 1.325" may change with different connector types) ;
Product Features
Model Number PA1001A-1 Description standard with pulse scaling with analog module standard with pulse scaling with analog module standard with pulse scaling with analog module Enclosure Cover Type standard lid standard lid 2" dome lid standard lid standard lid 2" dome lid standard lid standard lid 2" dome lid
VR and RF
PA1001A-1PS PA1001A-1A PA1001A-2
RF only
PA1001A-2PS PA1001A-2A PA1001A-3
VR only
PA1001A-3PS PA1001A-3A
MOTIONSENSORS INC. ,
phone 252-331-2080 * fax 252-331-1666 * www.motionsensors.com

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