Tegam 3525 Manuale utente

MODEL 3525

GENERAL-PURPOSE, PROGRAMMABLE

LCR METER

Instruction Manual

PN# 3525-900-01CD

Publication Date: February 2009

REV. E

Table of Contents

Model 3525 LCR Meter Instruction Manual a

TEGAM INC.

MODEL 3525

GENERAL-PURPOSE, PROGRAMMABLE

LCR METER

MODEL 3525

Instruction Manual

PN# 3525-900-01CD

Publication Date: February 2009

REV. E

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.

Table of Contents

Model 3525 LCR Meter Instruction Manual b

I INSTRUMENT DESCRIPTION............................................................................1-1

Instrument Description ........................................................................... 1-2

Feature Overview................................................................................... 1-2

Accessories Sheet .................................................................................. 1-4

Performance Specifications...................................................................... 1-5

Measurement Ranges......................................................................... 1-5

Table 1.1 - Absolute Impedance Range Limits Chart............................... 1-5

Display A & B – Basic Accuracies ......................................................... 1-6

Table 1.2 – Basic Accuracy for Display A............................................... 1-6

Table 1.3 – Basic Accuracy for Display B............................................... 1-6

Calculating Actual Measurement Accuracies........................................... 1-7

Table 1.4 – Speed Coefficient.............................................................. 1-7

Table 1.5 – Amplitude Coefficient ........................................................ 1-7

Instrument Specifications........................................................................ 1-8

II PREPARATION FOR USE ..................................................................................2-1

Unpacking & Inspection........................................................................... 2-2

Safety Information & Precautions ............................................................. 2-2

Terms in this Manual ......................................................................... 2-2

Terms as Marked on Equipment........................................................... 2-2

Symbols........................................................................................... 2-3

Grounding the Equipment................................................................... 2-3

Danger Arising from the Loss of Ground ............................................... 2-3

Use the Proper Fuse...........................................................................2-4

Do not Use in Explosive Environments.................................................. 2-4

Do not Operate without Covers ........................................................... 2-4

Servicing Safety Summary ...................................................................... 2-4

Do not Service Alone ......................................................................... 2-4

Use Care when Servicing with Power On............................................... 2-4

Power Source ................................................................................... 2-4

Line Voltage Selection............................................................................. 2-5

Table 2.1 – Operating Voltage Ranges.................................................. 2-5

III QUICK START INSTRUCTIONS.........................................................................3-1

Power the Unit....................................................................................... 3-2

Factory Default Settings.......................................................................... 3-2

Table 3.1 - Factory Default Settings..................................................... 3-2

Instrument Setup................................................................................... 3-3

Display A ......................................................................................... 3-3

Display B ......................................................................................... 3-3

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

Table of Contents

Model 3525 LCR Meter Instruction Manual c

IV OPERATING INSTRUCTIONS............................................................................4-1

Basic Operation...................................................................................... 4-2

Default Parameters................................................................................. 4-2

Front Panel Description ........................................................................... 4-3

Figure 4.1a – Front Panel Layout ......................................................... 4-3

Figure 4.1b – Measurement & Parameter Control Area............................ 4-4

Figure 4.1c – Comparator Controls Area ............................................... 4-5

Rear Panel Description............................................................................ 4-6

Figure 4.2 – Rear Panel...................................................................... 4-6

Selecting the Measurement Parameters..................................................... 4-7

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 ......................................................... 4-10

Setting the measurement Range .............................................................. 4-11

Table 4.3 – Measurement Range Characteristics .................................... 4-11

Setting the Trigger Mode......................................................................... 4-13

Using the Comparator Functions............................................................... 4-14

Overview ......................................................................................... 4-14

Table 4.4 – Operation of GO/NO-GO Comparator ................................... 4-14

Setting the High and Low Limit Values.................................................. 4-15

Preset Panel Function.............................................................................. 4-18

Overview ......................................................................................... 4-18

Setting Panel Numbers....................................................................... 4-18

Recalling Panel Numbers .................................................................... 4-18

Zero Correction...................................................................................... 4-19

Overview ......................................................................................... 4-19

Figure 4.3 – Terminal Connections for Zero Correction............................ 4-19

Open Circuit Correction ...................................................................... 4-20

Short Circuit Correction...................................................................... 4-20

Audible Beeper ...................................................................................... 4-21

Overview ......................................................................................... 4-21

Setting the Beep Sound...................................................................... 4-21

Connection Methods ............................................................................... 4-22

Figure 4.4 – 3 Terminal Connection...................................................... 4-22

Figure 4.5 – 5 Terminal Connection...................................................... 4-23

V PROGRAMMING & INTERFACING.....................................................................5-1

Interfacing to the 3525 ........................................................................... 5-2

Front Panel Connections.......................................................................... 5-2

Figure 5.1 – Front Panel Measurement Connections................................ 5-2

Rear Panel ............................................................................................ 5-3

Figure 5.2 – Rear Panel Interfaces....................................................... 5-3

Table of Contents

Model 3525 LCR Meter Instruction Manual d

V PROGRAMMING & INTERFACING cont’d

I/O Control Connector............................................................................. 5-4

Compatible Connectors ...................................................................... 5-4

I/O Pin Outputs................................................................................. 5-4

Figure 5.3 – I/O Control Connector Pin Orientation................................. 5-4

Table 5.1 – Pin Designations............................................................... 5-5

I/O Pin Descriptions........................................................................... 5-5

Table 5.2 – BCD Panel Settings ........................................................... 5-6

Table 5.3 – Total Go & No Go Functional Relationships............................ 5-7

I/O Control Connector Electrical Schematic ........................................... 5-8

Figure 5.4 – I/O Control Connector Schematic....................................... 5-8

I/O Timing Diagrams .............................................................................. 5-9

Figure 5.5 – I/O Control Connector Timing Diagram ............................... 5-9

Approximate Measurement Times............................................................. 5-9

Table 5.4 – Approximate Measurement and Signal Processing Times......... 5-9

Analog Signal Measurement Time ........................................................ 5-10

Table 5.5a – Analog Signal Measurement Time...................................... 5-10

Measurement Speed.......................................................................... 5-10

Table 5.5b – Total Measurement Speed ................................................ 5-10

RS232C Communications ........................................................................ 5-11

Figure 5.6 – RS-232C Connector ......................................................... 5-11

Table 5.6 – RS-232C DTE Pin Configurations ......................................... 5-11

RS-232C Settings.............................................................................. 5-12

Remote Commands ................................................................................ 5-13

Program Messages ............................................................................ 5-13

The Header ......................................................................................5-13

The Parameter.................................................................................. 5-13

Rules for Remote Commands .............................................................. 5-14

Rules for Commands and Parameters................................................... 5-14

Condition & State Registers ................................................................ 5-15

Commands List................................................................................. 5-18

Table 5.7 – RS-232C & GPIB Command Set .......................................... 5-18

Command Reference.......................................................................... 5-19

VI SERVICE INFORMATION..................................................................................6-1

Warranty .............................................................................................. 6-2

Warranty Limitations .............................................................................. 6-2

Statement of Calibration ......................................................................... 6-2

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

VI APPENDIX .......................................................................................................A-1

Instrument Description

INSTRUMENT DESCRIPTION

PREPARATION FOR USE

QUICK START INSTRUCTIONS

OPERATING INSTRUCTIONS

PROGRAMMING & INTERFACING

SERVICE INFORMATION

APPENDIX

Model 3525 LCR Meter Instruction Manual 1-1

Model 3525 LCR Meter Instruction Manual Instrument Description

1-2

Instrument Description

Model 3525,TEGAM’s innovative solution for cost sensitive LCR applications, does not compromise

quality or performance. Its flexible design allows a diverse range of testing applications including

manual or automated testing of capacitors, inductors, coils, resistors, thermoelectric cooling

devices, materials, piezo-electric or other sensors or components possessing 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|). Display B measures values for Dissipation Factor (D or Tan

δ), Quality Factor (Q), Phase Angle (θ), Measurement Voltage (V) and Measurement Current (I).

All parameters are easily monitored, selectable from the front panel, and may be measured as

Series or Parallel equivalent circuits.

The 3525’s compact size is unprecedented and allows side-by-side mounting in standard 19”

racks. A built-in comparator function makes the 3525 the ideal choice for manual component

checking. Whether you are verifying component values for QA or manufacturing, the built in GO-

NO GO comparator reduces test time and increases productivity with an audible beeper that may

be set to alarm when a pass or fail state has been measured. A front panel lock feature prevents

accidental changes on instruments settings.

Model 3525 is shipped from the factory with standard Kelvin Klips, RS-232C port, and I/O

connector. There are a variety of optional accessories available, including GPIB Interface, BCD

Output, Kelvin Klip Leads, Kelvin Tweezers, Radial Sorting Fixture, and SMT Chip Test Fixture. See

the Accessories Sheet on page 1-4 for complete descriptions.

Feature Overview

The Model 3525 was designed with the right balance of features to keep cost down while

providing optimal performance for most basic LCR applications. Below is a summary of the

instrument’s main features.

0.08% Basic Accuracy with 4.5 digit resolution.

The 3525 is designed to perform basic impedance measurements with up to 0.08% basic

accuracy. Measurement accuracies are dependent upon a number of parameters and test

conditions. See Performance Specifications to determine the actual measurement

accuracies.

High Speed Measurement

With a 1kHz test frequency a reading can be obtained in as little as 15 mS when the

instrument is operating in fast mode.

Manual or Remote Operation

The 3525 is equipped for manual or remote operation. Standard interfaces include a RS-

232C and I/O port. GPIB and BCD interfaces are available as optional accessories.

Model 3525 LCR Meter Instruction Manual Instrument Description

1-3

Feature Overview cont’d:

Dual High Intensity Displays

The 3525 is equipped with dual LED displays for easy viewing. Display A measures 4½

digits of Inductance (L), Capacitance (C), Resistance (R), or Impedance (|Z|) while Display

B indicates Dissipation Factor (D or Tan δ), Quality Factor (Q), Phase Angle (θ),

Measurement Voltage (V), or Measurement Current (I).

Programmable GO/NO-GO Comparator with Audible Buzzer

Each unit has an internal comparator function that can be set by the user. Comparator

Outputs result from the values of Display A, Display B, or a combination of the two. The

comparator outputs may be read from the front panel, buzzer, the I/O connector located

on the rear panel, or queried from the remote interfaces.

99 Preset Storage Locations

Panel Settings 01-99 are user-definable and may be programmed manually or via

communication interfaces. These settings are stored in non-volatile RAM locations and may

be recalled from the front panel or any of the rear interfaces.

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.

Manual or Auto Ranging

In AUTO range, the instrument automatically selects from 10 different impedance ranges.

The selected range is dependent upon the DUT’s absolute impedance, |Z|. In the manual

range mode, the user may select from any of these ten ranges through the front panel.

Voltage and Current Monitors

Test Voltage (Vx) and Current (Ix) can be measured at the DUT terminals and are

viewable on Display B to three significant digits.

Open and Short Circuit Zero Correction

Parasitic impedance of the test cables and/or test fixture may be cancelled out by

performing the 3525’s auto zero functions.

Front Panel Lock

The 3525 is equipped with a front panel lock-out feature to prevent accidental changes to

instrument settings.

Dual Trigger Modes

Trigger instructions may be executed either internally or externally. Internal triggering

allows the instrument to run continuously while external triggering requires instruction

from the front panel, I/O connector, RS-232C, or GPIB interfaces.

Series or Parallel Equivalent Measurements

AC parameters may be measured as Series or Parallel equivalents.

Model 3525 LCR Meter Instruction Manual Instrument Description

1-4

3525 Accessories Sheet

2005B - Chip Tweezers (5ft)

This four-terminal tweezer set

makes solid connections to chip

components in manual sorting

applications. Capacity of jaws is

12.7mm (0.5 in.). The 2005B Chip

Component Tweezer Set includes a

1.5m (5 ft) cable for connection to

the 3525. Contact tips are

replaceable. P/N 47422.

47422 Chip Tweezer

Replacement Kit

Tweezer tips are intended to last

100,000 to 500,000 operations. An

optional tip replacement kit includes

12 replacement tips, 2 screws and 1

wrench.

3511 - Chip Test Fixture

Available for performing three

terminal measurements on surface

mount devices. Connects directly to

the front panel of the 3525. Use the

3511 for medium and high

impedance measurements.

3525-900-01CD – Instruction

Manual

Printed copy of the 3525 users

manual.

3510-Radial Lead Adapter

This sorting fixture allows for efficient

four-wire measurement of leaded parts.

The test fixture features spring action

contacts for easy insertion and removal of

test components.

47454 – Kelvin Klips

Kelvin Klips allow solid four-terminal,

Kelvin connections to leaded components.

The jaws are assembled with hardened

gold-plated, beryllium copper, which

ensures low contact resistance, low

thermal emf to copper, high corrosion

resistance, and long service life. An

alligator clip is provided allowing

connection of a passive guard. The

assembly includes a 5 ft (1.5m) cable for

connection to the 3525.

NOTE: Under certain measurement conditions,

Kelvin Klips can cause a loss of measurement

accuracy. Fixtures 3510, 3511, or 2005B chip

tweezers are recommended for the following

component values:

C<100pF; L < 100μH; R > 1MΩ

CBL-3102-BNC-BNC Cable

BNC to BNC, RG 58/U, coaxial cable for

use at the trigger inputs and outputs of

the 3525. Cable length is a minimum of 1

meter (3.28 ft) long.

KK100- Kelvin Klip™ Rebuild

Kit

Kelvin Klip™ replacements for

construction or repair of Kelvin Klip

leads.

GPIB (IEEE-488) Cables

1583-3 – 1-meter GPIB buss cable

1583-6 – 2-meter GPIB buss cable

1583-9 – 3-meter GPIB buss cable

3502 – BCD Interface

BCD output for interface to handlers

and other automated systems.

3501 – GPIB Interface

GPIB (IEEE-488)-compatible interface

card. Field or factory installation.

740565 – CABLE NULL

740565-6 – 6’ cable, null mod, 9-9

740565-10 – 10’ cable, null mod, 9-9

Model 3525 LCR Meter Instruction Manual Instrument Description

1-5

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.

2. The instrument must be in an environment which does not exceed the limitations as

defined under “Environmental” in the Instrument Specifications section.

3. The unit is allowed to warm up for a period of at least 30 minutes before measurements

are taken. A warm-up period of 60 minutes is recommended after exposure to or storage

in a high humidity, non-condensing environment.

4. Use only TEGAM-manufactured test leads and sorting fixtures with this device. Modification

of existing test cables or fixtures may compromise the accuracy of your readings. Always

perform an open and short zero null procedure before taking measurements.

Measurement Ranges

Table 1.1: Absolute Impedance Range Limits Chart

Range No. |Z| Measurement Range

1 0.0100Ω~ 0.1999Ω

2 0.1800Ω~1.9999Ω

3 1.800Ω~ 19.999Ω

4 20.00Ω~ 199.99Ω

5 0.2000kΩ~ 1.9999kΩ

6 2.000kΩ~ 19.999kΩ

7 20.00kΩ~ 199.99kΩ

8 0.1800MΩ~ 1.9999MΩ

9 2.000MΩ~ 19.999MΩ

10 18.0MΩ~ 199.99MΩ

The measurement range is determined by the absolute impedance, |Z| of the DUT. The absolute

impedance includes the vector sum of L, C, and R values.

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