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PA2001 Pre-Amplifier

The Motion Sensors (MSI) PA2001 series preamplifiers allow convenient interfacing with process measuring devices and digital electronics.


This series of preamplifiers/signal conditioners is available in both a combination version that provides user selection of either variable reluctance VR or RF sensor input, or a VR input only version.

Installation Drawing  


When used with VR sensors they will accept low-level signals and provide hysteresis to eliminate unwanted noise and interference. Operating range is 4 to 10,000 Hz. When used with RF sensors, they provide false pulsing safeguards, air gaps up to 0.150", a frequency range of 2 to 5,000 Hz, as well as a precisely tuned carrier signal to allow for maximum signal reliability.


Features and Specifications

Input Power:
  Voltage: 8 to 30 VDC

Current draw: 25 mA @ 24 VDC

Reverse polarity protected

   
RF Sensor Input:
  Modulation carrier frequency: 25 KHz

Input frequency: 2 Hz to 5 KHz

Maximum air gap: 0.150"

Preferred coil inductance: 1.0 mH +/- 10%

Max. distance from sensor to preamp: 100'

   
VR Sensor Input:
  Input protected, RF and band pass filtered

Input frequency: 0 to 10 KHz

Trigger sensitivity: 4 mV RMS minimum
(NOTE: at 4 mV frequency range 10 Hz to 3 KHz)

Input impedance: 40K ohms (nominal)

Maximum input signal: 600 volts RMS

Max. distance from sensor to preamp: 100'

   
Pulse Output Options:
 

All output options are user selectable

Open collector Vmos transistor, maximum OFF state voltage 30 VDC; maximum ON current 400 mA

TTL/CMOS; fanout of 5 TTL/CMOS loads

0 to 10 VDC square wave

Square wave tied to input voltage

   
Physical Dimensions:
  Board diameter: 1.10"

Height: 0.85"

   
Temperature Range:
  Operating: -40°F to +185°F
(-40°C  to +85°C)

Storage: -40°F  to +302°F
(-40°C to +150°C)

   
Enclosures:
  Unit is intended for mounting in an elbow conduit box such as Crouse-Hinds Model LBY15

Optional explosion proof box available upon request

   
Approvals: <!Row 5, Column 4>
  CE compliant to EMC Directive 89/336/EEC for use in residential, commercial, light industrial and heavy industrial environments
   
Warranty:
  Unconditional one (1) year warranty if used within specifications
   
Product Features
 
Model Number Description Pulse Output
PA2001-1 Combo VR/RF equipped with all options
PA2001-1A Combo VR/RF TTL/CMOS and open collector only
PA2001-2 VR only equipped with all options
PA2001-2A VR only TTL/CMOS and open collector only
   

Copyright © 2007 - Motion Sensors, Inc. - North Carolina (NC) - Phone: 252-331-2080 Fax: 252-331-1666 info@motionsensors.com           Sitemap