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NV8A General Specifications Brochure Page 1 of 2 Signal Amplifier/ Conditioner Provides 0…5V DC Analog Voltage Output The information and material presented may not be published, broadcast, rewritten, or redistributed without the expressed written consent of Rieker® Inc. The content presented is provided for informational purposes only and subject to change. ©2002-2008 Rieker® Inc. All Rights Reserved. FORM NUMBER: SK0027_10/02 Updated: 12/08 Description Features The NV8A signal amplifier is used to excite, filter, normalize, and convert the different output signals of select sensors to a 0-5VDC output. This asymmetrical output signal allows for a problem-free signal transfer to measurement equipment such as oscilloscopes, AD-cards in PC’s, or to other OEM equipment. Requiring a non-regulated supply voltage, the NV8A provides a highly stable 5V with short circuit current limitation as a sensor supply voltage. Multiple internal switching variants allow for optimal adaptation of signal processing parameters, such as settling time, filter cut-off frequencies and amplification and zero point adjustment. Even with large fluctuations at the unit’s power supply, the NV8A will act very stable for both offsetting the sensor’s zero point and supplying a stable 0-5V DC output, which is linear to the sensor’s working range. Low noise, low drift Works directly on +8 to 30VDC non-regulated input power supply Internal generation of negative operating voltage Reverse polarity protection Short-circuit protection for output Internal voltage regulation to sensor Zero and gain adjustable potentiometers Electronic components hermetically sealed Optional frequency programmable active 4th order low pass filter Optional high pass filter Optional connector options Alternative Output Amplifiers NV4A for ±4VDC output Applications NV6A for 4-20mA output Well suited for use where the demand for high voltage output and/or special filtering of the sensor’s signal is needed. The use of an asymmetric output voltage requires minimal electronics for further signal processing. MECHANICAL CHARACTERISTICS OPERATING TEMPERATURE 32ºF TO 158ºF (0°C to +70°C) DIMENSIONS 1.97” (50mm) l x 0.984”(25mm) w x 0.402” (10.22mm) d Pin connector: 0.10” (2.54mm) w x 0.224” (5.7mm) l ELECTRICAL CONNECTIONS SUPPLY VOLTAGE Optional 0.025” (0.63mm) gold plated soldering pads +8 to +30 VDC Non-Regulated (reverse polarity protected to -70V) OUTPUT SPECIFICATIONS SENSOR SUPPLY +5.0 Volt SENSOR SUPPLY – TEMP. DRIFT 20ppm /°C MAX. OUTPUT VOLTAGE +0.05V…+4.95V 34 MOUNT PLEASANT ROAD • ASTON • PA • 19014 • USA 610-500-2000 fax: 610-500-2002 [email protected] www.riekerinc.com NV8A General Specifications Brochure Page 2 of 2 SIGNAL ZERO POINT 2.5 ±2VDC OFFSET RANGE 2.4...2.6 Volt (larger ranges available upon request) POWER SUPPLY NOISE 30µVpp SIGNAL TO NOISE RATIO Approx. 80dB (with standard sensor) FREQUENCY RANGE 0...10Hz; 0...200Hz; 0...2kHz (custom ranges available) CURRENT CONSUMPTION Approx. 5mA (excluding sensor) OUTPUT IMPEDANCE 100 OHMS The information and material presented may not be published, broadcast, rewritten, or redistributed without the expressed written consent of Rieker® Inc. The content presented is provided for informational purposes only and subject to change. ©2002-2008 Rieker® Inc. All Rights Reserved. FORM NUMBER: SK0027_10/02 Updated: 12/08 Figure 1: Dimensions (mm) and Connections Caution! Do not short circuit the operating voltage (8...30V) with the outputs. No problems with GND – all on the same potential, also in case of multiple axis systems! The sensor’s operating voltage of +5V/maximum 5mA may also be used as a voltage reference for connected electronics (e.g. OPV or ADC) because of its very high accuracy. 34 MOUNT PLEASANT ROAD • ASTON • PA • 19014 • USA 610-500-2000 fax: 610-500-2002 [email protected] www.riekerinc.com