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Sanwa LCR701 Instruction Manual

Digital lcr meter
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LCR701
DIGITAL LCR METER
INSTRUCTION MANUAL

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Summary of Contents for Sanwa LCR701

  • Page 1 LCR701 DIGITAL LCR METER INSTRUCTION MANUAL...
  • Page 2 Table of Contents SAFETY PRECAUTIONS: Before use, read the following safety precautions …………………………… 1 Explanation of Warning Symbols ………………………… 2 Warning Instructions for Safe Use [2] APPLICATIONS AND FEATURES Applications ………………………………………………… 3 Features ……………………………………………………… 3 [3] PART IDENTIFICATION LCR meter and clipping leads ……………………………… 4 Display ………………………………………………………...
  • Page 3 Maintenance and Inspection ………………………………………………… 32 Calibration ……………………………………… Cleaning and Storage ……………………………………… Battery Replacement [7] AFTER-SALE SERVICE Warranty and Provision ………………………………… 34 Repair ……………………………………………………… 34 SANWA ………………………………………… 35 Website [8] SPECIFICATIONS …………………………………… 36 General Speci cations Measuring Range and Accuracy ………………………… 38...
  • Page 4 SAFETY PRECAUTIONS: Before use, read the following safety precautions This instruction manual explains how to use your LCR701 digital LCR meter safely. Before use, please read this manual thoroughly to ensure correct and safe use. After reading it, keep it together with the product for reference to it when necessary.
  • Page 5 1. Do not apply any voltage or current to the measuring terminals. 2. Never attempt to repair the instrument by yourself and ask the nearest Sanwa authorized agent, distributor, or service provider for repair. 3. Do not use the instrument if the meter or clip leads look damaged.
  • Page 6 [2] APPLICATIONS AND FEATURES 2-1 Applications LCR701 is a full-featured high-performance handy LCR meter which rivals the capabilities and options of many of its bench counterparts. This instrument features a device value sorting function, allowing users to quickly sort passive devices in situations such as incoming inspections.
  • Page 7 [3] PART IDENTIFICATION 3-1 LCR meter and clipping leads ⑱ ⑰ ① ⑯ ⑮ ② ⑭ ③ ④ ⑬ ⑲ ⑤ ⑫ ⑥ ⑪ ⑦ ⑩ ⑧ ⑳ ⑨ ① LCD display ⑧ ENTER button ⑮ Device value sorting function button ②...
  • Page 8 Clipping leads CL-700a (Bundled item) Plugs Alligator clips Approx. 160 mm SMD Clipping leads CL-700SMD (Separately available accessory) Approx. 550 mm Shorting plate (Bundled item) – 5 – ― 5 ―...
  • Page 9 3-2 Display ① ② ③ ④ ⑤ ⑥ ⑦ ㉓ ㉒ ⑧ ㉑ ⑳ ⑨ ⑲ ⑱ ⑩ ⑰ ⑯ ⑮ ⑭ ⑬ ⑫ ⑪ ① Data hold indicator ⑬ Equivalent parallel resistance measurement operation indicator ② OPEN/SHORT calibration ⑭ Equivalent series resistance mode indicator measurement operation indicator ③...
  • Page 10 [4] DESCRIPTION OF FUNCTIONS 4-1 Power Button Press the POWER button to turn on the meter. All segments of the LCD display will be turned on for 2 seconds after power-on, and then the meter will be ready to use in the Auto LCR mode (described later). Press the POWER button again to turn off the meter.
  • Page 11 4-5 Measuring Mode Selection 4-5-1 Auto LCR Mode After power-on, the meter is in the Auto LCR mode as a default setting, and shows [AUTO LCR] on the display. The meter automatically selects a function, parameter, and series/parallel mode. The function and the sub parameter on the sub display will be selected based on the following conditions.
  • Page 12 4-5-2 Manual LCR Mode and DC Resistance Measurement As already described, the default setting is the Auto LCR mode after power-on, the main function can be switched to the manual LCR mode or DC resistance mode by pressing the L/C/R AUTO/MANU button. Pressing this button ( ⇒...
  • Page 13 Quality factor (Q) = Inductance (L) component / Resistance (R) component Dissipation factor (D) = Resistance (R) component / Capacitance (C) component • ESR is used for measuring equivalent series resistance of a capacitor under a measuring frequency. Example 4-6 Measuring Frequency Selection The meter provides 5 different frequencies (100 Hz/120 Hz/1 kHz/10 kHz/100 kHz) for more accurate measurement.
  • Page 14 4-7 Series/Parallel Mode When measuring L/C/R with multiple element in its equivalent circuit, an appropriate measuring mode needs to be selected, assuming actual circuit to be measured. Select the series mode if a series circuit is assumed, or select the parallel mode if a parallel circuit is assumed.
  • Page 15 The meter uses the following formula to calculate relative displays. REL% = (DCUR – DREF) / DREF * 100% REL% = Difference in percent DCUR = Device currently under test DREF = Device used as a reference To enter the relative mode, proceed as follows. 1.
  • Page 16 4-11 OPEN/SHORT Calibration The OPEN/SHORT calibration before measurement reduces the parasitic effect of the test xture to get better accuracy especially for high/low impedance measurement. (For the calibration principle, see 4-15-3.) Procedure of the OPEN/SHORT calibration This section explanations how to perform the OPEN/SHORT calibration for a measurement using the directly connectable measuring terminals, and one for a measurement using the clipping leads "CL-700a".
  • Page 17 3. Insert the bundled shorting plate to the directly connectable measuring terminals. 4. Press the CAL button again. The display shows [Srt]. 5. Press the CAL button again. The meter shows a countdown on the display while it performs the SHORT calibration. It takes 30 seconds to complete.
  • Page 18 [Measurement using the clipping leads "CL-700a"] 1. Insert the red and black clipping leads into      the measuring terminals on the LCR meter      as shown in the gure, and leave the clips      open. 2. Press the CAL button for 2 seconds. The display shows [OPEn].
  • Page 19 4. Connect the test leads to make a short circuit. 5. Press the CAL button again. The display shows [Srt]. 6. Press the CAL button again. The meter shows a countdown on the display while it performs the SHORT calibration. It takes 30 seconds to complete.
  • Page 20 4-12 Device Sorting The meter can sort device values into PASS/FAIL based on resistance, capacitance, or inductance. This feature is useful in situations such as incoming inspections for mass production parts. Note: This function is not available in the Auto LCR mode. Use this function in the manual LCR mode.
  • Page 21 The display shows the readings. 2. Press the PC button. The display shows [PC] to indicate PC connection is active. 3. To make the PC connection inactive, press PC button again. The display turns [PC] off to indicate the PC connection is inactive. –...
  • Page 22 4-15 MEASURING PRINCIPLES 4-15-1 What is impedance? Impedance Z extends the concept of resistance to AC, which is mathematically handled as a vector quantity on a complex plane. As shown, the impedance vector consists of the real part (the resistance R) and the imaginary part (the reactance X). Series impedance Zs can be represented as Rs + jXs in Cartesian form, and also can be represented as |Zs| ∠...
  • Page 23 4-15-2 Impedance measurement 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 as Y = G + jB. where: G = Conductance B = Susceptance Series impedance Parallel admittance Z = Rs + jXs...
  • Page 24 Both Rs and Rp are part of the equivalent circuit of capacitors and inductors. To measure capacitance and inductance, refer to the settings as shown in the table below. Value Setting Parallel Capacitance High Series Series Inductance High Parallel For details, refer to 4-7. 4-15-3 Principle of OPEN/SHORT calibration as total impedance measured to a DUT by a test which has some parasitic impedance.
  • Page 25 [5] MEASURING PROCEDURE 5-1 Connection of DUT (Device Under Test) DUT's (Devices Under Test) may be connected to the meter as follows. • Directly insert axial or radial component leads to the directly connectable measuring terminals. • Attach the clipping leads "CL-700a" (bundled item). –...
  • Page 26 • Attach the SMD clipping leads "CL-700SMD" (separately available accessory). CL-700SMD Electrical Characteristics Measurement Parameter 100/120 Hz 1 kHz 10 kHz 100 kHz Condition < 0.10   Resistance: Rs Clip opened < 0.05 < 0.10 < 0.10 Capacitance: Cp Clip closed <...
  • Page 27 5-2 Pre-operational Check WARNING 1. Do not use the instrument if the meter or the clipping leads look damaged. 2. Make sure the clipping leads are not broken. CAUTION • Make sure the battery condition is good after power-on. Replace the battery with new one if the battery power is low. •...
  • Page 28 5-3 Auto LCR Mode Measurement WARNING 1. Do not apply any voltage or current to the measuring terminals. 2. Measuring live circuit may damage the meter. 3. Do not touch any metal part of the clipping leads nor the leads of the DUT while measuring.
  • Page 29 5-4 Manual LCR Mode measurement WARNING 1. Do not apply any voltage or current to the measuring terminals. 2. Measuring live circuit may damage the meter. 3. Do not touch any metal part of the clipping leads nor the leads of the DUT while measuring.
  • Page 30 5-4-1 Inductance (L) measurement 1) Measuring ranges L: 20.000 H 〜 2000 H (auto-range) 2) Measuring procedure ① Press the L/C/R AUTO/MANU button to select Ls or Lp function. ② Press the TEST FREQ button to select a measuring frequency. ③...
  • Page 31 5-4-2 Capacitance (C) measurement 1) Measuring ranges C: 200.00 pF 〜 20.00 mF (auto-range) 2) Measuring procedure ① Press the L/C/R AUTO/MANU button to select Cs or Cp function. ② Press the TEST FREQ button to select a measuring frequency. ③...
  • Page 32 5-4-3 Resistance (R) measurement 1) Measuring ranges R: 20.000 Ω ～ 200.0 MΩ (auto-range) 2) Measuring procedure ① Press the L/C/R AUTO/MANU button to select Rs or Rp function. ② Press the TEST FREQ button to select a measuring frequency. ③ Press the S/P button to select Rs or Rp. Any sub parameter will not be shown.
  • Page 33 5-5 Device Value Sorting 1) Measuring ranges L: 20.000 H 〜 2000 H (auto-range) C: 200.00 pF 〜 20.00 mF (auto-range) 〜 200.0 M (auto-range) R: 20.000 2) Setting and Measuring procedure ① Perform the OPEN/SHORT calibration. For details, refer to 4-11. (The OPEN/SHORT calibration is recommended for more accurate measurement.) ②...
  • Page 34 The following shows how to set up the details of the sorting mode. a. Use   button (D/Q/θ/ESR/Rp button) or   button (S/P button)  to adjust the position of the decimal point as necessary. Press  the ENTER button when nished. b. Use the  ,   (PC button),   (⊿ button), and   buttons to adjust  the digits of the reference value (setting range: 0002 to 1999) as necessary.
  • Page 35 If any of the above problems exists, stop using the instrument and request for repair. 6-2 Calibration For more information, please contact Sanwa’s authorized agent / distribution service provider, listed on our website. (See 7-3.) 6-3 Cleaning and Storage CAUTION The main unit is not resistant to volatile solvent and must not be cleaned with thinner or alcohol.
  • Page 36 6-4 Battery Replacement WARNING To avoid electric shock, do not remove the battery lid while an input is applied to the measured terminal or during measurement. Make sure that the POWER button is set to OFF before replacing the battery. ①...
  • Page 37 (1) year from the date of purchase. This warranty policy is valid within the country of purchase only, and applied only to the product purchased from a Sanwa authorized agent or distributor. Sanwa reserves the right to inspect all warranty claims to determine the extent to which the warranty policy shall apply.
  • Page 38 An instrument sent to a Sanwa / agent / distributor without above information will be returned to the customer. Note: 1) Prior to requesting repair, please check the following: Capacity of the built-in battery, polarity of installation and discontinuity of the test leads.
  • Page 39 [8] SPECIFICATIONS 8-1 General Specifications Main display 20,000 counts: Ls / Lp / Cs / Cp / Rs / Rp / DCR LCD display θ/ESR/RP (with Backlight) Sub display 2,000 counts: D/Q/ Over-range While the meter is reading outside limits, numeric part of the display indicates [OL].
  • Page 40 accuracy)] / ℃ Temperature [0.15 x (speci ed 0 〜 18 ℃ , 28 〜 50 ℃ coef cient Operating 0 〜 50 ℃ < 80 % RH temperature/ humidity Storage -20 〜 60 ℃ < 80 % RH temperature/ humidity IEC61326-1(EMC), EN50581(RoHS) Under a condition eld strength CS 3 V (0.15-80 MHz):...
  • Page 41 8-2 Measuring Range and Accuracy Accuracy: ±(% rdg + dgt)  " % + d " is an abbreviation. rdg: reading dgt: least digit Temperature: 23 ℃ ±5 ℃ Humidity: ≦ 80 % R.H. ( ≦ 60 % R.H. for the range of 2 M , 20 M , and 200 M ) The accuracy when using the dedicated accessory CL-700a or CL-700SMD after OPEN / SHORT calibration is shown below.
  • Page 42 Inductance: Lp, Ls (When D < 0.1) Range Resolution 100/120 Hz 1 kHz 10 kHz 100 kHz 20 H 0.001 H 1.0 % + 10 d 200 H 0.01 H 0.8 % + 10 d 1.0 % + 10 d 2000 H 0.1 H 0.8 % + 10 d 0.5 % + 5 d 0.8 % + 10 d...
  • Page 43 Accuracy of Θ θe: θe=±(180/π) × Ae (deg) Ae means an accuracy of rdg in the main display. Unit: ° Display range: -90.0 ° to 90.0 ° • In the capacitance measurement Range 100/120 Hz 1 kHz 10 kHz 100 kHz 200 pF ±0.46 ±1.15...
  • Page 44 Accuracy of D value De: De = ±Ae Display range: 0.000 to 1999 Ae means an accuracy of rdg in the main display. Ex. Capacitor to be measured: 180 nF Measuring frequency: 1 kHz Measuring accuracy: ±(0.3 %rdg + 3 dgt) Ae = 0.3 %rdg Calculation for De (Accuracy of D value): De= ±0.003...
  • Page 45 < MEMO > – 42 – ― 42 ―...
  • Page 46 本社=東京都千代田区外神田 2−4 −4 ・ 電波ビル 郵便番号=101-0021 ・ 電話=東京 （03） 3253−4871 （代） 大阪営業所=大阪市浪速区恵美須西2−7−2 郵便番号=556-0003 ・電話 = 大阪 （06） 6631−7361 （代） Dempa Bldg, 4-4 Sotokanda 2-Chome Chiyoda-Ku, Tokyo, Japan 02-2412 2040 6010 This manual employs soy ink.