Related Manuals for BK Precision 878A
Summary of Contents for BK Precision 878A
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Page 1: Instruction Manual
INSTRUCTION MANUAL MANUAL DE INSTRUCCIÓNES Dual Display LCR Meter Model 878A / 879 Medidor LCR de Doble Exhibicion Visual Modelos 878A/ 879... - Page 2 DUAL DISPLAY L/C/R METER INSTRUCTION MANUAL Model-A = 879 Model-B = 878A...
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Page 3: Table Of Contents
TABLE OF CONTENTS PAGE Safety Introduction Front Panel Illustration LCD Display Illustration How to Operate Operating Instructions Data Hold Static Recording Dissipation Factor / Quality Factor/ Phase Angle Test Frequency L/C/R function selector Relative ... - Page 4 SAFTEY Read "SAFETY INFORMATION" before using this meter. NOTE The meter is a hand-held, battery-operated instrument for testing inductance, capacitance and resistance. If this device is damaged or something is missing, contact the place of purchase immediately. This manual contains information and warnings must be followed to ensure safe operation as well as to maintain the meter in a safe condition.
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Page 5: Safety Information
SAFETY INFORMATION To ensure that you use this device safely, follow the safety guidelines listed below: • This meter is for indoor use, altitude up to 2,000 m. • The warnings and precautions should be read and well understood before the instrument is used. •... -
Page 6: Introduction
INTRODUCTION This 19,999-count L/C/R hand-held meter is a special microprocessor- controlled meter for measuring functions of inductance, capacitance and resistance. Extremely simple to operate, the instrument not only takes absolute parallel mode measurements, but also capable of series mode measurement. The meter provides direct and accurate measurements of inductors, capacitors and resistors with different testing frequencies. -
Page 7: Front Panel Illustration
FRONT PANEL ILLUSTRATION LCD display Power ON/OFF button RS232 and Backlit button Dissipation factor, Quality factor and Phase angle selection button Test frequency selection button Inductance, Capacitance and Resistance function selection button. Parallel and series mode selection button Tolerance mode selection button Data hold, Maximum, Minimum and Average reading selection button Range selection button... -
Page 8: Lcd Display Illustration
LCD DISPLAY ILLUSTRATION 3 4 6 10 RS232 Figure 2. LCD Display. AUTO: Auto-ranging indicator LCR: L, C or R function indicator MAX: Maximum reading indicator AVG: Average reading indicator REL: Relative mode indicator MIN: Minimum reading indicator DH: Data hold indicator Θ: Phase angle indicator (Model-A only ) Q: Quality factor indicator D: Dissipation factor indicator... - Page 9 : Auto power- off indicator : Low battery indicator PAL: Parallel mode indicator SER: Series mode indicator MkΩ: Resistance (Ohm) indicator : Inductance (Henry) indicator : Capacitance (Farad) indicator : RS232 indicator Special Indication Characters : Indicates short connectors : Indicates open connectors : Indicates calibration mode : Indicates damaged or open fuse...
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Page 10: How To Operate
HOW TO OPERATE Caution • When measuring within a circuit, the circuit must be de- energized before connecting the test leads. • The instrument that used in dusty environment should be wiped and cleaned regularly. • Do not leave the instrument exposed to direct heat from the sun or beat source for long periods. - Page 11 Inductance Measurement Press the "POWER" button to turn on the meter. Press “L/C/R” button to select inductance measurement. Insert an inductor into component receptacle socket or connect the test clip to the component leads as required. Press “FREQ” button to select testing frequency. Press “D/Q”...
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Page 12: Capacitance Measurement
Capacitance Measurement Press "POWER" button to turn on the meter. Press “L/C/R” button to select capacitance measurement. Insert a capacitor into the component receptacle socket or connect the test clip to the component leads as required. Press “FREQ” button to select testing frequency. Press “D/Q”... -
Page 13: Resistance Measurement
Resistance Measurement Press "POWER" button to turn on the meter. Press “L/C/R” button to select Resistance measurement. Insert a resistor into the component receptacle socket or connect the test clip to the component leads as required. Press “FREQ” button to select testing frequency (this meter will not give you the DC resistance of a component). -
Page 14: Operating Instructions
OPERATING INSTRUCTIONS Data Hold This data hold function allows the operator to freeze the display. To enter this mode, press the “HOLD” pushbutton; press again to release. Static Recording Press the “REC” pushbutton for more than one second to enter the static recording mode. -
Page 15: Test Frequency
Test Frequency Default testing frequency is 1KHz. Push “FREQ” key to select the desired test frequency. L/C/R Function Selector Simply press the “L/C/R” pushbutton to select the desired L, C or R function. Relative Press the “REL” key to enter the relative mode and stores the display reading as a reference value. -
Page 16: Auto/Manual Ranging
tolerance. Conversely, a single tone of “Be” indicates the component is within the setting tolerance. Notes: The tolerance mode can’t be activated if the tested display is either “OL” or “0000”; nor can it be activated the tested capacitance value is below 10 counts. Tolerance mode is only available in manual ranging;... -
Page 17: Calibration
measurements, and the series mode is default for Inductance measurement. Press “L/C/R” button for more than 1 second to toggle “SER” and “PAL” mode. Calibration Calibration is available to all ranges. Simply press and hold “CAL” button for more than one second to enter the calibration mode and calibration prompts will be displayed. -
Page 18: Auto Power Off/ Disable Auto Power Off
Be sure to use same testing position after short calibration. Auto Power Off/ Disable Auto Power Off When the meter has not been used for five minutes after the last operation was made, a long “beep” tone will sound. The meter will then automatically enter a “sleep”... -
Page 19: Communication
Communication This meter has communication capability. By using the optional RS232 package (AK 87X), with full optical isolated cable and software. This function will assist user to record data easily. Referring the following procedures to set up the communication between your meter and personal computer. -
Page 20: General Specification
GENERAL SPECIFICATION Items 878A L/C/R/D/Q/Θ L/C/R/D/Q Parameters Measured Measuring Circuit Mode Inductance (L) –Defaults to series mode Capacitance/ Resistance (C/R) -Defaults to parallel mode L/C/R: Maximum display 19999 Displays D/Q: Maximum display 999 (Auto Range). Auto & Manual Ranging Mode... -
Page 21: Electrical Specification
ELECTRICAL SPECIFICATIONS Accuracy is expressed as: ± (% of reading + no. of least significant digits) at 23℃ ±5℃ and <75% R.H. Model 879: Resistance (Parallel mode) Test Frequency: 100 / 120 Hz Maximum Accuracy Range Specified Note Display @100 Hz @120Hz 2.0%+8 *3... - Page 22 Capacitance (Parallel mode) Test Frequency: 100 / 120 Hz Range Maximum Accuracy Spec. Note Display Capacitance 10mF 19.99mF *5 3.0%+5 10%+100/Cx+5 After short cal. (DF<0.1) (DF<0.1) 1000μF 1999.9μF*6 1.0%+5 2%+100/Cx+5 After short cal. (DF<0.1) (DF<0.1) 200μF 199.99μF 0.7%+3 0.7%+100/Cx+5 DF<0.5 (DF<0.5) 20μF...
- Page 23 Test Frequency: 10 KHz Maximum Accuracy Range Spec. Note Display Capacitance 50μF 50.0μF 3.0%+8 12%+100/Cx+10 After short cal. (DF<0.1) (DF<0.1) 20μF 19.999μF 3.0%+6 5.0%+100/Cx+8 After short cal. (DF<0.2) (DF<0.2) 2000nF 1999.9nF 1.5%+5 1.5%+100/Cx+6 (DF<0.5) (DF<0.5) 200nF 199.99nF 1.5%+5 1.5%+100/Cx+6 (DF<0.5) (DF<0.5) 20nF 19.999nF...
- Page 24 Inductance (Series mode) Test Frequency: 100 / 120Hz Maximum Accuracy (DF<0.5) Range Spec. Note Display Inductance 1000H 999.9H 1.0%+(Lx 2%+100/Lx+5 After open cal. /10000) %+5 200H 199.99H 0.7%+(Lx 1.2%+100/Lx+5 /10000)%+5 19.999H 0.7%+(Lx 1.2%+100/Lx+5 /10000)%+5 2000m 1999.9mH 0.7%+(Lx 1.2%+100/Lx+5 /10000)%+5 200mH 199.99mH 1.0%+(Lx...
- Page 25 Test Frequency: 10 KHz Maximum Accuracy (DF<0.5) Range Spec. Note Display Inductance 1000mH 999.9mH 2.0%+(Lx 2.0%+100/Lx+10 /10000)%+ 8 200mH 199.99mH 1.5%+(Lx 2.0%+100/Lx+10 /10000)%+8 20mH 19.999mH 1.5%+(Lx 3.0 %+100/Lx+15 /10000)%+10 2.0%+(Lx 8.0 %+100/Lx+20 After short cal. 2000µH 1999.9µH /10000)%+10 Notes: 1.Q Value is the reciprocal of DF. This specification is based on the measurement performed at the test socket.
- Page 26 Model 878A: Resistance (parallel mode) Test Frequency: 120Hz / 1KHz Range Maximum Accuracy Specified Note Display @120 Hz @1KHz 2.0%+8 *3 2.0%+8 *3 After open cal. 10MΩ 9.999MΩ 0.5%+5 0.5%+5 After open cal. 2000KΩ 1999.9KΩ 0.5%+3 0.5%+3 200KΩ 199.99KΩ...
- Page 27 Test Frequency: 1 KHz Range Maximum Accuracy Spec. Note Display Capacitance 1.999mF *5 3.0%+5 10%+100/Cx+5 After short cal. (DF<0.1) (DF<0.1) 200μF 199.99μF 1.0%+5 2.0%+100/Cx+5 After short cal. (DF<0.1) (DF<0.1) 20μF 19.999μF 0.7%+3 0.7%+100/Cx+5 (DF<0.5) (DF<0.5) 2000nF 1999.9nF 0.7%+3 0.7%+100/Cx+5 (DF<0.5) (DF<0.5) 200nF 199.99nF...
- Page 28 Inductance (Series mode) Test Frequency: 120Hz Range Maximum Accuracy (DF<0.5) Spec. Note Display Inductance 1000H 999.9H 1.0%+(Lx 2%+100/Lx+5 After open cal. /10000) %+5 200H 199.99H 0.7%+(Lx 1.2%+100/Lx+5 /10000)%+5 19.999H 0.7%+(Lx 1.2%+100/Lx+5 /10000)%+5 2000m 1999.9mH 0.7%+(Lx 1.2%+100/Lx+5 /10000)%+5 200mH 199.99mH 1.0%+(Lx 3%+100/Lx+5 After short cal.
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Page 29: Maintenance
MAINTENANCE WARNING To avoid electrical shock, do not perform any service unless you are qualified to do so. SERVICE If the instrument fails to operate, to check battery and test leads, and replaces them if necessary. If the instrument still can’t work, double check operating procedure as described in this instruction manual. - Page 30 Fuse Replacement The meter can self-detect if its input protective fuse is either open or damaged. In this case, the LCD will display the symbol "FUSE" and an audible beep will sounds continuously, warning the user to replace the damaged fuse to maintain the accuracy of measurement.
- Page 31 Cleaning the Meter WARNING To avoid electrical shock or damaging the meter, never get water inside the case. Before cleaning this meter, make sure the power is switched in OFF position and remove external DC adaptor. To clean the meter, wipe the dirty parts with gauze or soft cloth soaked with diluted neutral detergent.
- Page 32 Limited One-Year Warranty B&K Precision Corp. warrants to the original purchaser that its products and the component parts thereof, will be free from defects in workmanship and materials for a period of one year from date of purchase. B&K Precision Corp. will, without charge, repair or replace, at its option, defective product or component parts.
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Page 33: Service Information
Service Information Warranty Service: Please return the product in the original packaging with proof of purchase to the address below. Clearly state in writing the performance problem and return any leads, probes, connectors and accessories that you are using with the device. Non-Warranty Service: Return the product in the original packaging to the address below. -
Page 34: Spanish Manual
22820 Savi Ranch Parkway Yorba Linda, California 92887 www.bkprecision.com ©2006 B&K Precision Corporation Printed in 481-524-9-001...
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