DE_5000_im 电路图.pdf

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1、 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT TEL: (516) 334-5959 (800) 899-8438 FAX: (516) 334-5988 534 Main Street, Westbury, NY 11590 IET LABS, INC. DE-5000 Portable, Full-Featured LCR Meter User and Service Manual RadioFans.CN 收音机爱 好者资料库 TEL: (516) 334-5959 (800) 899-8438 FAX: (516) 334-5988 5

2、34 Main Street, Westbury, NY 11590 IET LABS, INC. RadioFans.CN 收音机爱 好者资料库 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT TEL: (516) 334-5959 (800) 899-8438 FAX: (516) 334-5988 534 Main Street, Westbury, NY 11590 IET LABS, INC. Copyright 2011 IET Labs, Inc. Visit for manual revision updates DE-5000 i

3、m/October 2011 DE-5000 Portable, Full-Featured LCR Meter User and Service Manual RadioFans.CN 收音机爱 好者资料库 PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT TEL: (516) 334-5959 (800) 899-8438 FAX: (516) 334-5988 534 Main Street, Westbury, NY 11590 IET LABS, INC. WARRANTY We warrant that this product is f

4、ree from defects in material and workmanship and, when properly used, will perform in accordance with applicable IET specifi cations. If within one year after original shipment, it is found not to meet this standard, it will be repaired or, at the option of IET, replaced at no charge when returned t

5、o IET. Changes in this product not approved by IET or application of voltages or currents greater than those allowed by the specifi cations shall void this warranty. IET shall not be liable for any indirect, special, or consequential damages, even if notice has been given to the possibility of such

6、damages. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. WARNING OBSERVE ALL SAFETY RULES WHEN WORKING WITH HIGH VOLTAGES OR LINE VOLTAGES. Dangerous voltages may be p

7、resent inside this instrument. Do not open the case Refer servicing to qualifi ed personnel HIGH VOLTAGES MAY BE PRESENT AT THE TERMINALS OF THIS INSTRUMENT WHENEVER HAZARDOUS VOLTAGES ( 45 V) ARE USED, TAKE ALL MEASURES TO AVOID ACCIDENTAL CONTACT WITH ANY LIVE COMPONENTS. USE MAXIMUM INSULATION AN

8、D MINIMIZE THE USE OF BARE CONDUCTORS WHEN USING THIS INSTRUMENT. Use extreme caution when working with bare conductors or bus bars. WHEN WORKING WITH HIGH VOLTAGES, POST WARNING SIGNS AND KEEP UNREQUIRED PERSONNEL SAFELY AWAY. CAUTION DO NOT APPLY ANY VOLTAGES OR CURRENTS TO THE TERMINALS OF THIS I

9、NSTRUMENT IN EXCESS OF THE MAXIMUM LIMITS INDICATED ON THE FRONT PANEL OR THE OPERATING GUIDE LABEL. - iii - Table of Contents Chapter 1: Introduction . 1 1.1. Overview .1 1.2. Introduction to measuring principles .2 1.2.1. What is impedance . 2 1.2.2. Measuring impedance . 4 1.3. Equivalent circuit

10、 .6 1.4. Instrument layout .7 1.5. LCD display layout . 10 Chapter 2: Operation . 12 2.1. How to obtain optimum precision . 12 2.2. Default settings . 12 2.3. Zeroing the meter . 14 2.4. Attaching DUTs to the meter . 17 2.5. Primary measurements and functions . 19 2.5.1. Measuring inductance, capaci

11、tance, and resistance . 19 2.5.2. Measuring dissipation, quality, ESR, and phase angle. 22 2.5.3. Sorting components . 24 2.5.4. Making relative measurements . 26 2.6. Additional settings . 30 2.6.1. Selecting test frequency . 30 2.6.2. Making measurements in series and parallel . 32 - iv - 2.7. Add

12、itional features . 33 2.7.1. Connecting to a PC . 33 2.7.2. Using the backlight . 35 2.7.3. Holding a reading on the display . 35 2.8. Replacing Batteries . 36 Chapter 3: Specifications . 37 3.1. General specifications . 37 3.2. Accuracy specifications . 39 3.3. Ordering information . 42 - 1 - Chapt

13、er 1: Introduction 1.1. Overview The DE-500 is a portable, high-performance LCR meter that is full-featured yet cost effective. It measures in true 4-wire Kelvin mode and rivals the capabilities and options of many of its bench counterparts. It measures: Ls/Lp - Series and parallel inductance Cs/Cp

14、- Series and parallel capacitance Rs/Rp - Series and parallel resistance (ac) Rdc/Rp - Series and parallel resistance (dc) ESR/Rp - Series and parallel equivalent resistance D - Dissipation factor Q - Quality factor - Phase angle This LCR meter can transfer data to a PC via a standard, fully isolate

15、d, optical IR-USB interface. It also features a Sorting mode, allowing users to quickly sort components. DE-5000 has automatic LCR selection. This allows the user to measure the L/C/R components in Auto LCR mode without having to select the type of measurement. - 2 - To accommodate various test requ

16、irements, the DE-5000 offers selectable test frequencies: 100 Hz / 120 Hz / 1 kHz / 10 kHz / 100 kHz. The unit is powered by a standard 9V battery. For additional convenience, it may also use an optional ac adapter (DE-5000-AC). To transfer data to a PC, the unit comes with a built-in IR interface.

17、IET offers an optional Data Transfer Kit (DE-5000-DTK). This kit includes: IR-USB interface adapter, a USB cable, and a CD with software for the PC. 1.2. Introduction to measuring principles 1.2.1. What is impedance Impedance (Z) consists of resistance (real part) and reactance (imaginary part). Ser

18、ies impedance (Zs) can be defined as a combination of series resistance (Rs) and series reactance (Xs). It can be represented mathematically as magnitude |Z|=(Rs2+Xs2) at a phase angle . - 3 - There are two types of reactance. One is inductive reactance XL, and the other is capacitive reactance XC.

19、If 0, the reactance is inductive. If 0, the reactance is capacitive. The inductive and capacitive reactances (XL and XC) can be defined as: XL = 2L XC =1(2C) Where: L = Inductance C = Capacitance = signal frequency) Zs = Rs + jXs or |Zs| Rs = |Zs| cos Xs = |Zs| sin Xs/Rs = tan = tan-1(Xs/Rs) - 4 - 1

20、.2.2. Measuring impedance Impedance can be measured in series or in parallel. In parallel mode, impedance can be represented as reciprocal of admittance (Y). The admittance can be defined as Y = G + jB, where: G = Conductance B = Susceptance Series impedance Parallel admittance To understand the rat

21、io of resistance and reactance, it is important to consider two factors: quality factor (Q) and dissipation factor (D). Usually Q is used when measuring inductance and D is used when measuring capacitance. D is defined as the reciprocal of Q. Q = 1/D = tan Q = Xs/Rs = 2f Ls/Rs = f CsRs Q = B/G = Rp/

22、|Xp| = Rp/2f Lp = 2f CpRp Rs = Series resistance Xs = Series reactance Cs = Series capacitance Ls = Series Inductance Rp = Parallel resistance Xp = Parallel reactance Cp = Parallel capacitance Lp = Parallel inductance Y = 1/Z = 1/Rp + 1/jXp = G+jB - 5 - Both Rs and Rp are part of the equivalent circ

23、uit of capacitors and inductors. When measuring capacitance and inductance, it is best to use the settings as shown in the table below. Value Setting Capacitance Low Parallel High Series Inductance Low Series High Parallel - 6 - 1.3. Equivalent circuit - 7 - 1.4. Instrument layout Front panel Side G

24、UARD provides a shield to reduce noise for device under test (DUT), test leads, and other equipment. - 8 - 23. TL-23 Guard Line 22. TL-22 SMD tweezers, 4-wire (optional) 21. TL-21 Alligator lead test-lead adapter (4-wire joined at alligator clips) Rear IR- USB interface (optional) - 9 - 1. LCD displ

25、ay 2. POWER Turns the instrument on/off. 3. LCR AUTO LCR auto mode, Inductance, Capacitance, Resistance and DC resistance measurement selection 4. FREQ Testing frequency selection 5. Backlight display 6. SORTING Sorting mode control 7. PC UART output control 8. CAL Open/Short calibration mode 9. D/Q

26、/ESR/ D/Q/ ESR/ parameters selection 10. SETUP Setup menu control (in sorting mode ) 11. SER/PAL Series and Parallel selection 12. ENTER Setup menu control (in sorting mode ) 13. REL% Relative mode 14. HOLD Data hold 15. Input sockets and Terminals (4-terminal) 16. AC adapter plug 17. Battery cover

27、18. Tilt-Stand 19. IR Slot 20. IR-USB adapter (optional) 21. TL-21 Alligator-clip test-lead adapter 22. TL-22 SMD tweezers (optional) 23. TL-23 Guard Line - 10 - 1.5. LCD display layout 1. Sorting Sorting function is enabled 2. Tol Tolerance indicator in sorting mode : 0.25%, 0.5%, 1%, 2%, 5%, 10%,

28、20%, 70% RH Storage temperature: -20C to 60C; 80% RH Battery: Uses a single, standard 9 V battery Display includes battery level indicator Mechanical: Dimensions: 18.8 cm H x 9.5 cm W, 5.3 mm D (7.4 x 3.75 x 2) Weight: 350 g (0.75 lb) - 39 - 3.2. Accuracy specifications Accuracy is specified at 23C

29、5C, 75% RH. All accuracy is specified as (% of reading) + (value of least significant digit). For most precise measurements, the meter has to be zeroed first. Resistance: Range Resolution 100/120Hz 1kHz 10kHz 100kHz 20.000 0.001 1.0%+3 1.0%+3 2.0%+3 200.00 0.01 1.0%+3 0.3%+2 0.3%+2 0.6%+3 2.0000 k 0

30、.0001 k 0.3%+2 0.3%+2 0.3%+2 0.6%+3 20.000 k 0.001 k 0.3%+2 0.3%+2 0.3%+2 0.6%+3 200.00 k 0.01 k 0.5%+2 0.5%+2 0.5%+2 1.0%+3 2.0000 M 0.0001 M 1.0%+3 1.0%+3 1.0%+3 2.000M 0.001 M 2.0%+3 20.000 M 0.001 M 2.0%+3 2.0%+3 20.00 M 0.01 M 2.0%+3 200.0 M 0.1 M 2.0%+3 2.0%+3 Capacitance: Range Resolution 100

31、/120Hz 1kHz 10kHz 100kHz 200.00 pF 0.01 pF 1.2%+5 2.0%+5 2000.0 pF 0.1 pF 2.0%+3 0.3%+2 0.6%+3 20.000 nF 0.001 nF 2.0%+3 0.3%+2 0.3%+2 0.6%+3 200.00 nF 0.01 nF 0.3%+2 0.3%+2 0.3%+2 0.6%+3 2000.0 nF 0.1 nF 0.3%+2 0.3%+2 0.6%+2 2.0%+5 20.000 F 0.001 F 0.3%+2 0.6%+2 1.2%+5 20.00 F 0.01 F 3.0%+5 (10F ma

32、x.) 200.00 F 0.01 F 0.6%+2 1.0%+3 200.0 F 0.1 F 3.0%+5 (100F max.) 2000.0 F 0.1 F 1.0%+3 2000 F 1 F 1.2%+3 20.00 mF 0.01 mF 1.2%+3 *If reading 2000, unit on display is pF - 40 - Inductance: Range Resolution 100/120Hz 1kHz 10kHz 100kHz 20.000 H 0.001 H 2.5%+5 200.00 H 0.01 H 1.2%+5 0.6%+3 2000.0 H 0.

33、1 H 2.0%+5 0.6%+3 0.6%+3 20.000 mH 0.001 mH 1.2%+5 1.0%+5 0.3%+2 0.6%+3 200.00 mH 0.01 mH 0.3%+2 0.6%+3 0.3%+2 1.2%+5 2000.0 mH 0.1 mH 0.3%+2 0.3%+2 0.6%+3 20.000 H 0.001 H 0.3%+2 0.6%+3 1.2%+5 200.0 H 0.1 H 0.6%+3 1.2%+5 2.000 kH 0.001 kH 1.2%+5 *If reading 20 M 2.5%+5 2.5%+5 2.5%+5 - 41 - Adjustme

34、nt to accuracy (Z) based on dissipation (D) reading: D 0.1: Z * (1+D2) In capacitance mode, D 0.1: ZC = 1(2C) In inductance mode, D 0.1: ZL = 2L Secondary Parameters Accuracy: AZ = impedance (Z) accuracy Definition: Q = 1/D & Rp = ESR * (1+1/D 2) D value accuracy: DZ = AZ *(1+D) ESR accuracy: RZ= ZM

35、 * AZ () ie., ZM = impedance calculated by 1(2C) or 2L Phase angle accuracy: Z= (180/ )*AZ (deg) - 42 - 3.3. Ordering information DE-5000 Standard Package: LCR meter DE-5000-LCR Carrying case DE-5000-CS Alligator-clip test-lead adapter TL-21 (4-wire joined at the alligator clips) Guard lead TL-23 St

36、andard 9 V battery DE-5000-9V Instruction manual DE-5000-IM Optional Accessories: AC adapter DE-5000-AC SMD tweezers (4-wire) TL-22 Data transfer kit DE-5000-DTK IR to USB Interface Adapter USB cable CD with software for PC PRECISION INSTRUMENTS FOR TEST AND MEASUREMENT TEL: (516) 334-5959 (800) 899-8438 FAX: (516) 334-5988 534 Main Street, Westbury, NY 11590 IET LABS, INC. TEL: (516) 334-5959 (800) 899-8438 FAX: (516) 334-5988 534 Main Street, Westbury, NY 11590 IET LABS, INC.