Tegam 3525 Instruction Manual
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Tegam 3525 Instruction Manual

General-purpose, programmable lcr meter
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MODEL 3525
GENERAL-PURPOSE, PROGRAMMABLE
LCR METER
Instruction Manual
PN# 3525-900-01CD
Publication Date: February 2009
REV. E

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  • Page 1 MODEL 3525 GENERAL-PURPOSE, PROGRAMMABLE LCR METER Instruction Manual PN# 3525-900-01CD Publication Date: February 2009 REV. E...
  • Page 2 NOTE: This user’s manual was as current as possible when this product was manufactured. However, products are constantly being updated and improved. Because of this, some differences may occur between the description in this manual and the product received. Model 3525 LCR Meter Instruction Manual...

  • Page 3: Table Of Contents

    Measurement Speed ................3-3 Test Frequency ................. 3-3 Test Voltage Level ................3-3 Circuit Mode ..................3-3 Range....................3-3 Trigger .................... 3-3 Performing an Open and Short Circuit Null ..........3-4 Measurement Tips .................. 3-4 Model 3525 LCR Meter Instruction Manual...
  • Page 4 Table 4.1a – Display A Description of Measurement Functions....4-7 Table 4.1b – Display B Description of Measurement Functions....4-7 Setting the Measurement Speed ............... 4-8 Table 4.2 – 3525 Typical Measurement Times........4-8 Setting the Measurement Frequency ............4-9 Setting the Measurement Signal Level ............4-9 Setting the Equivalent Circuits Mode ............
  • Page 5 Contact Information ................6-2 Repair Parts ..................6-3 Changing the Power Fuse ................ 6-3 Preparation for Calibration or Repair Service ..........6-4 Expedite Repair & Calibration Form ............6-5 Model 3525 Verification Procedure ............6-6 APPENDIX .......................A-1 Model 3525 LCR Meter Instruction Manual...

  • Page 6: Instrument Description

    Instrument Description INSTRUMENT DESCRIPTION PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX Model 3525 LCR Meter Instruction Manual...

  • Page 7: Feature Overview

    AC impedance characteristics. Up to 9 impedance parameters are easily viewed on each of the 3525’s two 4 ½ digit, LED displays. Display A provides accurate and repeatable readings of Inductance (L), Capacitance (C), Resistance (R), and Impedance (|Z|).
  • Page 8 Less than ½ Rack Width Two 3525 units are able to be rack mounted, side-by-side, in a standard 19” rack using a third party rack mount kit, without modifying the instrument cases.

  • Page 9: Accessories Sheet

    BNC to BNC, RG 58/U, coaxial cable for use at the trigger inputs and outputs of 3525-900-01CD – Instruction the 3525. Cable length is a minimum of 1 Manual 740565 – CABLE NULL meter (3.28 ft) long. Printed copy of the 3525 users 740565-6 –...

  • Page 10: Performance Specifications

    Model 3525 LCR Meter Instruction Manual Performance Specifications The advertised specifications of the Model 3525 are valid under the following conditions: 1. The instrument’s calibration must be verified using the methods and intervals as described in the Service Information Section of this user’s manual.

  • Page 11: Display A & B - Basic Accuracies

    Instrument Description Model 3525 LCR Meter Instruction Manual Display A & B - Basic Accuracies Table 1.2: Basic Accuracy for Display A Range ±(0.90+30/fL ±(0.60+1.5fC ±(1.00+0.21/R ±(1.00+0.15/Z ±2.10% ±2.10% ±2.10% ±1.80% ±0.39% ±0.39% ±0.39% ±0.35% ±0.10% ±0.10% ±0.10% ±0.08% ±0.09% ±0.09%...

  • Page 12: Calculating Actual Measurement Accuracies

    50mV Amplitude Coefficient NOTE: The 3525 will produce a reading in both range 1 and range 10 using a 50mV test voltage. These readings are for reference use only and are not within any specified accuracy limits. When measuring C and L, if the condition D≤0.1 is not satisfied, use Z and θ for accuracy calculations.

  • Page 13: Instrument Specifications

    Instrument Description Model 3525 LCR Meter Instruction Manual Instrument Specifications Measurement Parameters • (Inductance) • (Capacitance) • (Resistance) • (Impedance) • (Dissipation Factor / Tan δ) • (Quality Factor) • θ (Phase Angle in Degrees) • (Inter-Terminal Voltage) • (Inter-Terminal Current) Measurement Range •...
  • Page 14 Instrument Description Model 3525 LCR Meter Instruction Manual Instrument Specifications cont’d: Displays A & B • 4½ Digit, High Visibility LED Displays Measurement & Measurement Speed • Measured parameter values are determined by the voltage and current amplitudes & phases detected by the instrument’s circuitry and/or the average of calculated values.
  • Page 15 100/120/220/240 VAC ± 10%; 50/60 Hz • 20VA ±10% Fuse: • For 100/120 VAC Operation; Use 1A @ 250V, fast acting, TEGAM PN#FU-3102-220 • For 220/240 VAC Operation; Use ½A @ 250V, fast acting, TEGAM PN#49743 3525 Dimensions: • Depth: 6.69” (17.0 cm) •...

  • Page 16: Preparation For Use

    Preparation for Use INSTRUMENT DESCRIPTION PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX Model 3525 LCR Meter Instruction Manual...

  • Page 17: Unpacking & Inspection

    Model 3525 LCR Meter Instruction Manual Unpacking & Inspection: Each 3525 is put through a series of electrical and mechanical inspections before shipment to the customer. Upon receipt of your instrument, unpack all of the items from the shipping carton and inspect, them for any damage that may have occurred during transit.

  • Page 18: Symbols

    Preparation for Use Model 3525 LCR Meter Instruction Manual Safety Information & Precautions Cont’d: Symbols: As Marked in This Manual: This symbol denotes where precautionary information may be found. As Marked on Equipment: CAUTION – Risk of Danger DANGER – Risk of Electric Shock...

  • Page 19: Use The Proper Fuse

    Refer fuse replacement to qualified service personnel. Do Not Use in Explosive Environments WARNING: The 3525 is not designed for operation in explosive environments. Do not Operate Without Covers WARNING: This device should be operated with all panels and covers in place. Operation with missing panels or covers could result in personal injury.

  • Page 20: Line Voltage Selection

    1. Verify that there is no power connected to the unit. 2. Change the line selector switch located on the rear panel of the 3525 to the desired operating voltage by using a small screwdriver to turn the voltage selection switch to the desired position.

  • Page 21: Quick Start Instructions

    Quick Start Instructions INSTRUMENT DESCRIPTION PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX Model 3525 LCR Meter Instruction Manual...

  • Page 22: Power The Unit

    Power the Unit CAUTION The power supply of the Model 3525 is designed for 50-60 Hz operation and a voltage range of 100-240 VAC. Review the line voltage selection procedure on page 2-5 before proceeding. Make sure that the line voltage setting matches the supply voltage and frequency.

  • Page 23: Instrument Setup

    Model 3525 LCR Meter Instruction Manual Instrument Setup Setup of the Model 3525 for general-purpose use is easy. Once the unit has been allowed to warm up, review the front panel and note the changes that need to be made in order to perform your required measurements.

  • Page 24: Performing An Open And Short Circuit Null

    Unless otherwise specified, use 120Hz for capacitance measurements and use 1kHz for testing inductors. • The 3525 will take the most accurate reading at SLOW measurement speed and 1V test voltage level. • Orientation of test leads is important for repeatable measurements especially at high frequencies.

  • Page 25: Model 3525 Lcr Meter Instruction Manual

    Operating Instructions INSTRUMENT DESCRIPTION PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX Model 3525 LCR Meter Instruction Manual...

  • Page 26: Basic Operation

    This section is designed to give the user a comprehensive description of the parameters and operating modes available from the Model 3525. The user will be exposed to additional topics that will enhance the integration of the Model 3525 into their application.

  • Page 27: Front Panel Description

    Operating Instructions Model 3525 LCR Meter Instruction Manual Front Panel Description Figure 4.1a: Front Panel Layout COMPARATOR DISPLAY B PARAMETER OPERATIONS PANEL SELECTION KEYS DISPLAY A COMPARATOR STATUS DISPLAY PARAMETER MODE INDICATORS MEASUREMENT TERMINALS DISPLAY A Comparator Operations Panel 4-1/2 Digit LED Display indicates measured Used for enabling the comparator, programming values for L, C, R, and |Z|.

  • Page 28: Figure 4.1B – Measurement & Parameter Control Area

    Operating Instructions Model 3525 LCR Meter Instruction Manual Front Panel Description cont’d: Figure 4.1b: Measurement & Parameter Control Area DISPLAY A OR B MEASUREMENT PARAMETER SELECTION SPEED TEST FREQUENCY COUNT SETTING MEASUREMENT SIGNAL AMPLITUDE LEVEL CURSOR POSITIONING EQUIVALENT MEASURMENT CIRCUIT...

  • Page 29: Figure 4.1C – Comparator Controls Area

    Operating Instructions Model 3525 LCR Meter Instruction Manual Front Panel Description cont’d: Figure 4.1c: Comparator Controls Area COMPARATOR ON/OFF OPEN CIRCUIT PANEL SELECTION NULL COMPARATOR LOW SHORT CIRCUIT S H O R T LIMIT NULL COMPARATOR HIGH LIMIT Panel Selection...

  • Page 30: Rear Panel Description

    Operating Instructions Model 3525 LCR Meter Instruction Manual Rear Panel Description: Figure 4.2: Rear Panel Voltage Power & Fuse Options Panel Selection Dial Socket Cover Control I/O RS232C Serial Number Connector Connector Voltage Selection Dial Options Panel Cover For selection of proper operating voltage see Blank cover for Units without GPIB Chapter II, Preparation for Use.

  • Page 31: Selecting The Measurement Parameters

    Model 3525 LCR Meter Instruction Manual Selecting the Measurement Parameters On the 3525, you are able to set the measurement parameters on DISPLAY A and DISPLAY B independently. The tables below summarize the measurement options available from DISPLAY A and DISPLAY B.

  • Page 32: Setting The Measurement Speed

    DISPLAY B. Setting the Measurement Speed The 3525 has three measurement speeds to choose from. These are FAST, NORMAL, and SLOW. The most accurate readings are obtained in the SLOW measurement mode. The measurement frequency and the measurement mode are the key variables, which affect total measurement time.

  • Page 33: Setting The Measurement Frequency

    LED located to the left of the [FREQ] key. Setting the Measurement Signal Level The 3525 has three selectable signal amplitudes to choose from: 1V, 500mV and 50mV. The signal level setting will change each time [LEV] is pressed. The selction sequence is: 1V→500mV→50mV→1V…...

  • Page 34: Setting The Equivalent Circuits Mode

    SER equivalent mode will perform a measurement in serial equivalent circuit mode and PRL mode will perform measurements in parallel equivalent circuit mode. The equivalent circuits mode of the 3525 changes when [CIR] is pressed. The active equivalent circuits mode changes sequentially: AUTO→SER→PRL→AUTO…...

  • Page 35: Setting The Measurement Range

    Model 3525 LCR Meter Instruction Manual Setting the Measurement Range The 3525 has 10 measurement ranges. The ranges can be set in either AUTO or MANUAL range. Select either AUTO or MANUAL range by depressing the [AUTO] key, which toggles between the two ranges.
  • Page 36 Operating Instructions Model 3525 LCR Meter Instruction Manual Setting the Measurement Range cont’d: When measuring inductance (L), and capacitance (C), the following formulas are used to find the DUT impedance and select the range. For measuring inductance (L), and D≈0, impedance, |Z| is as calculated with the following formula: π...

  • Page 37: Setting The Trigger Mode

    Model 3525 LCR Meter Instruction Manual Setting the Trigger Mode The Model 3525 may be programmed for INTERNAL or EXTERNAL Trigger Operation. Internal Trigger [INT]: 3525 triggers automatically for continuous measurement. External Trigger [MANU]: Measurement starts with RS232, GPIB, Control I/O or front panel trigger.

  • Page 38: Using The Comparator Functions

    Judgment section of the front panel. Respective output conditions can also be obtained from the Control I/O Connector in the instrument’s rear panel or heard with the 3525’s audible beeper. More information on the audible beeper and Control I/O connector can be found later in this chapter.

  • Page 39: Setting The High And Low Limit Values

    Operating Instructions Model 3525 LCR Meter Instruction Manual Setting the High and Low Limit Values The following procedure should be followed to set the comparator HI and LOW limits: 1. Define the high or low limit value 2. Enable or disable DISPLAY A (If disabled, go to step 6) 3.
  • Page 40 Operating Instructions Model 3525 LCR Meter Instruction Manual Setting the High and Low Limit Values cont’d: 2. Enable or Disable DISPLAY A cont’d: Press the [ON] key until five digits appear across the LED display. This means that DISPLAY A is enabled.
  • Page 41 Operating Instructions Model 3525 LCR Meter Instruction Manual Setting the High and Low Limit Values cont’d: 5. Setting the Units of Measure for DISPLAY A After the decimal point position is set, press the [►] again to define the units of measure for DISPLAY A.

  • Page 42: Preset Panel Function

    The “COMPARATOR ON” LED will indicate the status of comparator operation. Preset Panel Function Overview The 3525 is capable of storing up to 99 different measurement settings into memory. A stored measurement setting is referred to as a "panel". Panel numbers 01 through 99 are used to designate each of the 3525 preset panels.

  • Page 43: Zero Correction

    Compensating for parasitic impedance in the measurement cables and fixtures will increase measurement accuracy and is recommended for all measurements. The 3525 memorizes the zero correction data for each panel. Whenever a panel number is changed, make sure that zero correction is performed again.

  • Page 44: Open Circuit Correction

    Operating Instructions Model 3525 LCR Meter Instruction Manual Zero Correction cont’d: Open Circuit Correction Open circuit correction compensates for capacitance and conductance leakage errors in the measurement cables. Perform the open-circuit correction procedure as follows: 1. Open the Low (L) and High (H) side measurement terminals.

  • Page 45: Audible Beeper

    Operating Instructions Model 3525 LCR Meter Instruction Manual Audible Beeper Overview The 3525 has an audible beeper that may be set to one of three conditions: 1. OFF Condition 2. Indicate on TOTAL-GO 3. Indicate on TOTAL-NO-GO The factory default setting is for the beeper to sound upon TOTAL-NO-GO.

  • Page 46: Connection Methods

    Operating Instructions Model 3525 LCR Meter Instruction Manual Connection Methods: To maintain optimal measurement accuracy, the connection to a DUT (device under test) must be suitable for its impedance. Generally speaking, DUTs with high impedance will use either a 3- terminal or 5-terminal connection.

  • Page 47: Figure 4.5 – 5 Terminal Connection

    Operating Instructions Model 3525 LCR Meter Instruction Manual Connection Methods cont’d: Figure 4.5: 5-Terminal Connection GUARD FORCE SENSE SENSE FORCE Device Under Test The 5-Terminal connection is the best method for low and high impedance measurements and should be used as the default measurement method. It eliminates stray capacitance and...

  • Page 48: Programming & Interfacing

    Programming and Interfacing INSTRUMENT DESCRIPTION PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX Model 3525 LCR Meter Instruction Manual...

  • Page 49: Interfacing To The 3525

    It will provide all of the necessary information required to integrate the 3525 easily into a working test stand. The 3525 is shipped from the factory with a standard RS-232C communications port and a Control I/O output. A GPIB (IEEE-488.2) Interface is available and may be purchased as an optional accessory.

  • Page 50: Rear Panel

    RS-232C and the I/O Control Connector are standard interfaces of the Model 3525. Their connectors are located in the rear panel of the unit. If the optional GPIB interface was purchased with the 3525, it will be located in the slot above the RS-232C & I/O Control Connectors. Figure 5.2: Rear Panel Interfaces...

  • Page 51: I/O Control Connector

    End of Measurement Output • External Trigger Input • Panel Number Inputs Compatible Connectors The following connectors are compatible with the TEGAM 3525 I/O Connector. Other compatible connectors may also be used. Manufacturer Part Number TEGAM, Inc. 15738 Honda Tsushin Kogyo...

  • Page 52: Table 5.1 – Pin Designations

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual I/O Pin Outputs cont’d Table 5.1: Pin Designations Pin No. Signal No. Pin No. Signal No. START PANEL 10 PANEL10 PANEL 10 PANEL10 PANEL 10 PANEL10 PANEL 10 PANEL10 DISP-A HI...

  • Page 53: Table 5.2 – Bcd Panel Settings

    (PIN: 9) BUSY A Low signal will be outputted if the 3525 is in the process of measuring an analog signal. (PIN: 27) END A Low signal is outputted when the measurement is completed and a comparator state has been...
  • Page 54 (PINS: 29~32 & 33~36) INT VCC, INT GND The INT VCC terminal connects to the +5VDC supply of the 3525. The INT GND terminal connects to the GND of the 3525. These may be used for sourcing the I/O signals.

  • Page 55: Figure 5.4 – I/O Control Connector Schematic

    • The input (photo LED) of the 3525's photo coupler has a 470Ω resistor in series with it. Thus, a source of +5VDC~+24VDC can be used. If a source of +24VDC is used, approximately 51mA of current will flow through the photo LED.

  • Page 56: I/O Timing Diagrams

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual I/O Timing Diagrams Below is a timing diagram, which illustrates the functionality of the I/O Control Connector when the Trigger Mode is MAN/EXT, and the comparator is ON: Figure 5.5: I/O Control Connector Timing Diagram...

  • Page 57: Analog Signal Measurement Time

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual Approximate Measurement Times cont’d Analog Signal Measurement Time The analog signal measurement time will vary according to the measurement frequency and the measurement speed, as indicated below: Table 5.5a: Analog Signal Measurement Time...

  • Page 58: Rs232C Communications

    Model 3525 LCR Meter Instruction Manual RS-232C Communications The 3525 is designed with a DTE-type (Data Terminal Equipment) port, so when connecting to a PC etc., a cross cable must be used. The pin numbers and signal designations are as follows: Figure 5.6: RS-232C Connector...

  • Page 59: Rs-232C Settings

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual RS-232C Communication cont’d RS-232C Settings The Model 3525 comes from the factory preset with the RS-232C protocol. These settings are not user-definable. Handshake Hardware Baud rate 9600 BPS Data Bits Stop Bits...

  • Page 60: Remote Commands

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands Program Messages Control commands consist of headers and parameters. The following example is a command message used to set the measurement frequency to 1kHz: HEADER PARAMETER FUNCtion: FREQ 1KHZ...

  • Page 61: Rules For Remote Commands

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Rules for Remote Commands 1. Commands are not case-sensitive Example) “PAN 10” = “pan 10” 2. Abbreviated commands are valid. The capital letter portion of the command (as seen in the reference chart) is the abbreviation.

  • Page 62: Condition & State Registers

    Remote Commands cont’d: Condition & State Registers The 3525 has five 8-bit registers. The condition of the 3525 can be determined by reading the state these registers. The contents of the condition and state registers are reset in the following situations: •...
  • Page 63 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Condition & State Registers: 2) The Standard Event Status Enable Register (SESER) The purpose of this register is to change Bit 5 of the Status Byte Register (SBR) to "ENABLE".
  • Page 64 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Condition & State Registers: 4) Service Request Enable Register (SRER) This is a register for setting valid bits on the Status Byte Register (SBR). Whenever any of the valid bits of the SBR become "1", a service request (SRQ) occurs. Each of the bits of this register corresponds to the bits of the SBR.

  • Page 65: Commands List

    Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Commands List The commands that can be used on the 3525 are as follows. For detailed explanations of each command, please refer to the command reference list. Table 5.7: RS-232C & GPIB Command Set...

  • Page 66: Command Reference

    Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference *CLS The CLS command clears the 5 Condition & State registers (SESR, SESER, SRE, SBR, MSR). Syntax: *CLS Example: PRINT #1;”*CLS” This command has no query.
  • Page 67 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference *ESR The ESR Query returns the current Standard Event Status Register (SESR) value. This command is query only. Query Syntax: *ESR? Output Format: <Format1><END> <Format1> → 0~255 Example: 10 PRINT #1,”*ESR?”...
  • Page 68 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference *RST The RST command restores the settings of the 3525 to the ex-factory settings. Syntax: *RST Example: PRINT #1;”*RST” This command has no query. *SRE The SRE command sets the Service Request Enable Register(SRER).
  • Page 69 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference *STB The STB query returns the current Status Byte Register (SBR) value. This command is query only. Query Syntax: *SBR? Output Format: <Format1><END> <Format1> → 0~255 Example: 10 PRINT #1,”*STB?”...
  • Page 70 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference BEEP The BEEP command sets how the beep will be released based on the Comparator's judgment result. The query returns the current beep setting. Syntax: BEEP {OFF, GO, NG}...
  • Page 71 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference COMParator:A The COMParator:A command sets the Comparator's Display A condition. Syntax: COMParator:A Example: PRINT #1,”COMP:A” PRINT #1,”HIGH 1.000e3” This command has no query. COMParator:A:HIGH The COMParator:A:HIGH command sets Display A's Comparator High Limit. The query returns the current Display A upper limit value.
  • Page 72 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference COMParator:A:HIGH:IGNO The COMParator:A:HIGH:IGNO command sets whether the High Limit Comparator of Display A will be valid or invalid (On/Off). The query returns the current Display A High Limit valid condition.
  • Page 73 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference COMParator:A:LOW:IGNO The COMParator:A:LOW:IGNO command sets whether the Display A Low Limit of the Comparator will be on or off (valid or invalid) The query returns the current Display A Low Limit On/Off condition.
  • Page 74 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference COMParator:B:HIGH The COMParator:B:HIGH command sets the Display B Comparator High Limit. The query returns the current Display B High Limit value. Syntax: COMParator:B:HIGH <numerical value> Example: PRINT #1,”COMP:B:HIGH 1.000E3”...
  • Page 75 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference COMParator:B:LOW The COMParator:B:LOW command sets the Low Limit of Display B of the Comparator. The query returns the current Display B Low Limit value. Syntax: COMParator:B:LOW <numerical value>...
  • Page 76 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference CORRection The CORRection command starts the Correction Mode. Syntax: CORRection Example: PRINT #1,”CORR” PRINT #1,”OPEN ON” This command has no query. CORRection:OPEN The CORRection:OPEN command runs Open Correction.
  • Page 77 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference FUNCtion The FUNCtion command starts the Measurement Parameters mode. Syntax: FUNCtion Example: PRINT #1,”FUNC” PRINT #1,”A:TYPE L” This command has no query. FUNCtion:A The FUNCtion:A command starts the Display A measurement parameters mode.
  • Page 78 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference FUNCtion:A:TYPE The FUNCtion:A:TYPE command sets the measurement item for Display A. The query returns the current Display A measurement item. Syntax: FUNCtion:A:TYPE {L, C, R, Z} •...
  • Page 79 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference FUNCtion:B:TYPE The FUNCtion:B:TYPE command sets the measurement item for Display B. The query returns the current Display B measurement item. Syntax: FUNCtion:B:TYPE {D, Q, SE, V, I} •...
  • Page 80 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference FUNCtion:CIRCuit The FUNCtion:CIRCuit command sets the equivalent circuits mode. The query returns the current equivalent circuits mode. Syntax: FUNCtion:CIRCuit {AUTO, SER, PRL} • AUTO: The equivalent circuits mode is selected automatically.
  • Page 81 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference FUNCtion:LEVel The FUNCtion:LEVel command sets the Measurement Signal Level. The query returns the current Measurement Signal Level. Syntax: FUNCtion:LEVel {1V, 500mV, 50mV} • 1V : Sets the Measurement Signal Level at 1V •...
  • Page 82 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference MEASure 1 measurement occurs, and the result is outputted. This command is query only. Query Syntax: MEASure? Output Format: <INDEX>,<PANEL>,<FA><D-A>,<JA>,<FB>,<D-B>,<JB>,<JT><END> • <INDEX1> → Measurement Index No. (Output = 0~9999) •...
  • Page 83 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference OUTPut The OUTPut command sets the remote output destination. The query returns the current data output destination. Syntax: OUTPut {OFF, RS232C, GPIB, ALL} • OFF: No output •...
  • Page 84 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference READ This outputs the measurement result of the immediate previous measurement. This command is query only. Query Syntax: READ? Output Format:<INDEX>,<PANEL>,<FA><D-A>,<JA>,<FB>,<D-B>,<JB>,<JT><END> • <INDEX1> → Measurement Index No. (Output = 0~9999) •...
  • Page 85 Programming and Interfacing Model 3525 LCR Meter Instruction Manual Remote Commands cont’d: Command Reference SPEed The SPEed command sets the measurement speed. The query returns the current measurement speed. Syntax: SPEed {FAST, NORM, SLOW} • FAST: Sets a measurement speed at FAST •...

  • Page 86: Service Information

    Service Information INSTRUMENT DESCRIPTION PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX Model 3525 LCR Meter Instruction Manual...

  • Page 87: Warranty

    TEGAM service center with shipping charges prepaid. TEGAM Inc. shall pay for the return of the product to the customer if the shipment is to a location within the country in which the TEGAM service center is located. The customer shall be responsible for paying all shipping, duties, taxes, and additional costs if the product is transported to any other locations.

  • Page 88: Repair Parts

    Service Information Model 3525 LCR Meter Instruction Manual Repair Parts The Model 3525 has no user replaceable parts. Changing the Power Fuse Different fuses must be used for different power voltage settings. For 100 or 120 volts settings, use a 250V/1A fuse.
  • Page 89 Model 3525 LCR Meter Instruction Manual Preparation for Repair or Calibration Service: Once you have verified that the cause for 3525 malfunction cannot be solved in the field and the need for repair and calibration service arises, contact TEGAM customer service to obtain an RMA (Returned Material Authorization) number.

  • Page 90: Expedite Repair & Calibration Form

    Service Information Model 3525 LCR Meter Instruction Manual Expedite Repair & Calibration Form Use this form to provide additional repair information and service instructions. Completing this form and including it with your instrument will expedite the processing and repair process.

  • Page 91: Model 3525 Verification Procedure

    Below is the Verification Procedure for the Model 3525. TEGAM recommends that the Verification Procedure be performed on new 3525 units after the initial six months from the date of shipment. After the initial six months, it is recommended that the Verification Procedure be performed once per year.
  • Page 92 9. Perform the following measurements, and record results in the table. Change the Frequency, Mode and Measured Parameters according to the standards specified in the Required Equipment Chart. Verify that the 3525 is within the allowable number of counts from the value of the standard’s calibration.
  • Page 93 Service Information Model 3525 LCR Meter Instruction Manual Model 3525 Verification Procedure cont’d: FREQ. RESISTANCE MODE ITEM STANDARD MEASURED DEVIATION ALLOWABLE PASS/ (Hz) (Ω) VALUE VALUE DEVIATION FAIL (COUNTS) θ θ θ θ θ 100k θ θ θ θ θ...

  • Page 94: Appendix

    Appendix SPECIFICATIONS PREPARATION FOR USE QUICK START INSTRUCTIONS OPERATING INSTRUCTIONS PROGRAMMING & INTERFACING SERVICE INFORMATION APPENDIX...
  • Page 95 Appendix Model 3525 LCR Meter Instruction Manual There is no information contained in the Appendix at this time.

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