Summary of Contents for PCB Piezotronics 8120F-410A
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Model 8120F-410A Strain Gage Sensor Signal Conditioner Installation and Operating Manual For assistance with the operation of this product, contact PCB Piezotronics, Inc. Toll-free: 800-828-8840 24-hour SensorLine: 716-684-0001 Fax: 716-684-0987 E-mail: info@pcb.com Web: www.pcb.com...
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Assistance is needed to safely operate equipment PCB Piezotronics is an ISO-9001 certified company whose Damage is visible or suspected calibration services are accredited by A2LA to ISO/IEC Equipment fails or malfunctions 17025, with full traceability to SI through N.I.S.T.
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CAUTION Refers to hazards that could damage the instrument. NOTE Indicates tips, recommendations and important information. The notes simplify processes and contain additional information on particular operating steps. The following symbols may be found on the equipment described in this manual: This symbol on the unit indicates that high voltage may be present.
MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL TABLE OF CONTENTS Sections Page 1.0 DESCRIPTION 2.0 INSTALLATION 3.0 OPERATION 4.0 BLOCK DIAGRAM DESCRIPTION 5.0 VERIFICATION OF NORMAL OPERATION Figure s 1 - 8120 SERIES INSTRUMENT WITH DIGITAL INDICATOR 2 - FULL-SCALE DISPLAYS FOR THREE RANGES 3 - SCALE, DECIMAL POINT, DUMMY ZERO SWITCHES 4 - A/D CONVERTER TIMING DIAGRAM 5 - BLOCK DIAGRAM DESCRIPTION...
MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL 1.0 DESCRIPTION The 8120 Instrument Series is a family of premium The Digital Indicator section of any -_10A or -_30A signal conditioning instruments that includes instrument consists of a printed circuit board on models to accommodate virtually all types of which are mounted the required circuit components transducers...
MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL significant digit (MSD) of the display contains the selection, decimal point/dummy zero selection, and polarity sign and is either unlit or lights as a 1 for ac power connection. displays of 10000 or greater. The least significant digit (LSD) is a dummy zero which can be turned Legend Installation ON or left unlit as desired.
MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL and are illustrated, with the scale selection coding, in Figure 3. With both switches OUT, the ±5000 range is selected. With the left switch OUT and the right switch IN, the ±10000 range is selected. With the left switch IN and the right switch OUT, the ±20000 range is selected.
MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL 4.0 BLOCK DIAGRAM DESCRIPTION converter. The measurement cycle is divided into The purpose of this section is to explain how the an Auto-Zero cycle, a Signal Integrate cycle, and a Digital Indicator works by using a simplified block Reference Integrate cycle.
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MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL The Overrange Comparator is described in a Dl DIGIT DRIVE is high. When D1 is high, the A following paragraph. SELECT is high and the B SELECT is low, transferring the X data to the Z ports of the Bit The binary-coded-decimal (BCD) outputs of the Selector and allowing the display to count by 2's.
MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL The polarity sign is also part of DS1. The minus (-) output goes low, the BLANK port is pulled low segment is always lit through 6 volts and an through a diode, causing DS2 through DS6 to flash. external resistor tied to circuit common.
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MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL Figure 4 - A/D Converter Timing Diagram...
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MODEL 8120 DIGITAL INDICATOR OPTION OPERATION MANUAL Figure 5 - Block Diagram...
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Table of Contents Section 1.0 Description Page 1 Section 2.0 Installation and Cabling Page 1 Section 3.0 Calibration Page 7 Section 4.0 Calibration of PCB Rotary Transformer Torque Sensors Page 8 Section 5.0 Troubleshooting Page 9 Reference Figures Figure 1...
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL DESCRIPTION Model 8113A or 8113-105A Shunt Calibration References. Front panel calibration buttons Model 8120-400A Transducer Signal provide for calibration in both the positive and Conditioner/Amplifier is designed for use with negative directions. An internal symmetry resistance strain gage transducers that require control provides independent adjustment of the an AC excitation-amplification source.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Figure 1 – Bench Mounting Clearance Dimensions Figure 2 – Panel Mounting Cut-Out Dimensions To panel mount an instrument, proceed as follows, referring to Figure 3. Important: The unit is shipped with two spacer washers on the securing screws of the rear-panel I/O connector.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL 6. Tighten the two securing screws of the rear panel I/O connector to ensure that the connector is seated and that the conditioner printed-circuit board is pushed fully forward so that the front- panel screwdriver adjustments and buttons are accessible.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Figure 4 – Rack Mounting Dimensions AC Power Connection achieve a precisely known Equivalent Input To protect operating personnel, the 8120 Series allowing the instrument sensitivity to be Instruments are equipped with a three- adjusted correctly.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL The 6-wire configuration, shown in Figure 8, should be used when the instrument is to be calibrated by achieving a precisely known Equivalent Input value through the use of a shunt calibration resistor supplied by the transducer manufacturer and when the required cable length is less than 20 feet.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Remote Calibration Check Master/Slave Connections The instrument can be placed in the calibration When more than one 8120-400A (or a mode (positive realm only) by shorting pins 5 combination of AC Carrier Conditioners) is (Signal Common) and 8 (Remote Cal) of the being used in a measurement setup (instruments rear-panel I/O connector.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Analog Outputs 8120-430A). When only the conditioner is analog outputs simultaneously supplied (8120-400A), an external indicator available at the instrument I/O connector, with must be used to monitor the conditioner each output having a different passband: DC to output.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL step (3) indicates that a field adjustment is 4.0 CALIBRATION OF PCB ROTARY necessary, proceed as follows: TRANSFORMER TORQUE SENSORS Remove the front panel by removing Shunt calibration of the Model 4100 Torque the two #2-56 flat head screws to obtain Sensor Series is done utilizing the PCB Model access to the SYMMETRY adjustment.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL 5. Release +CAL and check zero; adjust if 7. Switch the 8113A to the RUN position and necessary. Check +CAL and adjust if check the instrument zero and adjust per necessary. Repeat steps (4) and (5) until step (1).
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Note: The user can contact the factory for assistance. See the front page of this manual for phone and fax numbers for the factory.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Figure 12 – Front Panel R and C Balance Controls These controls are used to set the output to zero when the transducer is unloaded. NULL Pushbutton This pushbutton is pressed when nulling the transducer bridge with the R and C Balance controls.
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MODEL 8120-400A AC SIGNAL CONDITIONER OPERATION MANUAL Figure 13 – Rear Panel Decimal Point / Dummy Zero Switches These switches, located in the upper right corner of the panel, place the decimal point in its proper place for the measurement range. Moving one of the switches places the decimal point at the selected position on the front panel display.
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