QuadTech 1730T User manual

1730T
LCR Meter
Instruction Manual
Form 150821/A4
©QuadTech, Inc., 2006
Domestic Sales 800-253-1230
For additional contact information please visit our website
www.quadtech.com
The material in this manual is for informational purposes only and is subject to change, without notice.
QuadTech assumes no responsibility for any error or for consequential damages that may result from the
misinterpretation of any procedures in this publication.
CAUTION
Voltage may be present on front and rear panel terminals. Follow all warnings in this manual when
operating or servicing this instrument. Substantial levels of energy may be stored in capacitive devices
tested by this unit.

Page 2 of 110 150821/A4

150821/A4 Page 3 of 110
Contents
Warranty ............................................................................................................5
Specifications............................................................................................................7
Accessories ............................................................................................................9
Safety Precautions....................................................................................................11
Condensed Operating Instructions ........................................................................13
Introduction - Section 1
1.1 Unpacking and Inspection..............................................................................17
1.2 Product Overview ..........................................................................................17
1.3 Controls and Indicators..................................................................................18
1.3.1 Front Panel Controls and Indicators .................................................18
1.3.2 Rear Panel Controls and Connectors ................................................19
1.4 Installation .....................................................................................................20
1.4.1 Dimensions ........................................................................................20
1.4.2 Instrument Positioning.......................................................................20
1.4.3 Power Requirements ..........................................................................20
1.4.4 Safety Inspection................................................................................21
Operation - Section 2
2.1 Terms and Conventions .................................................................................23
2.2 Start-Up..........................................................................................................28
2.3 SYSTEM SETUP/CONFIG ..........................................................................28
2.3.1 VM/IM Display .................................................................................29
2.3.2 CONSTant Rsource ..........................................................................29
2.3.3 AVERAGE Time ..............................................................................30
2.3.4 CABLE Length .................................................................................30
2.3.5 BEEPER ............................................................................................30
2.3.6 KEY LOCK ......................................................................................31
2.3.7 INTEGer Cycle .................................................................................32
2.3.8 CONTRAST .....................................................................................32
2.3.9 SOUND Mode ..................................................................................32
2.3.10 ALARM Mode ..................................................................................33
2.3.11 HANDLER Mode .............................................................................33
2.3.12 GPIB EOS Code ...............................................................................33
2.3.13 GPIB ADDRESS Code .....................................................................34
2.3.14 TRIGGER Delay ...............................................................................34
2.3.15 TRIGGER Edge ................................................................................34
2.3.16 LINK 1320 ........................................................................................35
2.3.17 HARM Check ...................................................................................35

Page 4 of 110 150821/A4
Contents - continued
Operation - Section 2 – Continued
2.4 MEAS DISPLAY...........................................................................................36
2.4.1 FREQuency .......................................................................................37
2.4.2 LEVEL ..............................................................................................37
2.4.3 PARAmeter .......................................................................................37
2.4.4 RANGE .............................................................................................40
2.4.5 SPEED/Accuracy ..............................................................................41
2.4.6 TRIGger ............................................................................................46
2.4.7 BIAS Voltage ....................................................................................46
2.4.8 BINNING ..........................................................................................47
2.4.9 COMPARE .......................................................................................47
2.4.10 BIAS Current ....................................................................................48
2.5 MAIN INDEX ..............................................................................................50
2.5.1 BINNING ..........................................................................................50
2.5.2 STORE ..............................................................................................53
2.5.3 RECALL ...........................................................................................54
2.5.4 COMPARE .......................................................................................55
2.5.5 CORRECTION .................................................................................56
2.6 Connection To Device Under Test ................................................................60
2.7 Measurement Procedure.................................................................................68
Interface - Section 3
3.1 IEEE-488 Interface ........................................................................................69
3.1.1 Pin Configuration...............................................................................69
3.1.2 IEEE-488 Interface Function Codes and Messages...........................71
3.1.3 IEEE-488 Interface Commands .........................................................76
3.1.4 IEEE-488 Command Format ............................................................78
3.1.5 IEEE-488 Commands - Detailed ......................................................79
3.1.6 Binning Example ..............................................................................92
3.1.7 Compare Example .............................................................................93
3.1.8 Sample IEEE BASIC Program .........................................................94
3.2 Handler Interface ..........................................................................................95
3.2.1 Handler Pin Assignments for Binning Operation .............................100
3.2.2 Handler Pin Assignments for Compare Operation ...........................101
3.3 Bias Voltage Connector ................................................................................102
Service & Calibration - Section 4
4.1 General...........................................................................................................105
4.2 Instrument Return ..........................................................................................105
4.3 Calibration......................................................................................................105
4.3.1 1730 Verification Procedure .............................................................106
4.3.2 1730 Verification Data Sheet ............................................................108

150821/A4 Page 5 of 110
Warranty
QuadTech warrants that Products are free from defects in material and workmanship and, when
properly used, will perform in accordance with QuadTech’s applicable published specifications.
If within one (1) year after original shipment it is found not to meet this standard, it will be
repaired, or at the option of QuadTech, replaced at no charge when returned to a QuadTech
service facility.
Changes in the Product not approved by QuadTech shall void this warranty.
QuadTech shall not be liable for any indirect, special or consequential damages, even if
notice has been given of the possibility of such damages.
This warranty is in lieu of all other warranties, expressed or implied, including, but not
limited to any implied warranty or merchantability of fitness for a particular purpose.
SERVICE POLICY
QuadTech’s service policy is to maintain product repair capability for a period of at least five (5)
years after original shipment and to make this capability available at the then prevailing schedule
of charges.

Page 6 of 110 150821/A4

150821/A4 Page 7 of 110
Specifications
Primary Parameters: Ls, Lp, Cs, Cp, Rs, Rp and ⏐Z⏐, L2A and L2B
Ls, Lp: 0.001μH – 99.999kH
L2A, L2B: 0.001μH – 99.999kH
Cs, Cp: 0.001pF – 9.9999F
Rs, Rp: 0.01mΩ– 99.99MΩ
⏐Z⏐: 0.01mΩ– 99.99MΩ
Secondary Parameters: D, Q, ESR, Xs, θ, N, 1/N, M, R2, and DCR
D: 0.0001 – 9999
Q: 0.0001 – 9999
ESR: 0.01mΩ– 99.99MΩ
Xs: 0.01mΩ– 99.99MΩ
θ: -180.00°– 180.00°
N: 0.001 – 9999.9
1/N: 0.001 – 9999.9
M: 0.001μH – 99.999kH
R2: 0.01mΩ– 99.99MΩ
DCR 0.01mΩ– 99.99MΩ
Measurement Accuracy: Basic LCR: 0.1% Basic DQ: ±0.001
Measurement Rate: Fast: 62 measurements/second
Medium: 19 measurements/second
Slow: 3 measurements/second
Measurement Mode: Continuous or Trigger (INT, EXT or Manual)
Measurement Delay: 0 – 10 seconds in 1ms increments
Averaging: 1-256 measurements
Ranging: Automatic or User Selectable
Equivalent Circuit: Series or Parallel
Test Voltage: 10mV to 1.0V programmable in 10mV steps
Test Frequency: 10 User Selectable Test Frequencies: 50Hz, 60Hz, 100Hz, 120Hz,
1kHz, 10kHz, 20kHz, 40kHz, 50kHz and 100kHz
Accuracy: ±(0.01% ±0.01Hz)
Source Impedance: 100/25Ω: 100Ω±5% if DUTIMPEDANCE >1Ω; 25 Ω±5% if DUTIMPEDANCE < 1Ω;
10Ω/CC: 10Ω±10% if DUTIMPEDANCE >10Ω; CC: 100mA±5% if DUTIMPED < 10Ω
100Ω: 100Ω±5%; 25Ω±5%;
25Ω: 25Ω±5%;

Page 8 of 110 150821/A4
Specifications (Continued)
Bias Voltage: Internal: (RBIAS) 0-5V DC, External: Programmable 0-5V DC
Bias Current: Internal: (RBIAS) 0-200mA
Display: 240 x 64 LCD Graphic display
Results Format: •Value •Deviation •%Deviation •Bin Number
Indication: Audible alarm programmable HI, LOW or OFF for Pass or Fail
Setup Storage: 50 Memory Locations
Standard
Interfaces: •IEEE-488 •Handler
Connectors: Front Connection: 4 BNC Sockets (LCUR, LPOT, HPOT, HCUR)
Rear Connection: EXT Bias Terminal Strip, 1 BNC Connector
GUARD: Banana Socket (Front & Rear connection)
Front Panel Lockout: Key Lock with or without setup recall, Back Lit Display: LOCK
Mechanical: Bench Mount; Dimensions: (w x h x d): 12.50 x 4.00 x 13.50”)
(312.5 x 100.0 x 337.5 mm)
Weight: 12.4 lbs (5.7 kg) net, 17 lbs (7.8 kg) shipping
Environmental: Operating: 10°C to +40oC, 10-90% RH
Storage: 0°C to +50oC, 10-90% RH
Pollution Degree 2
Installation Category II
Power: •90-125VAC •190-250VAC •50 or 60Hz •65W max
Supplied: •Instruction Manual •Power Cable
•Calibration Certificate •Kelvin Clip Lead Set
Ordering Information: Description Catalog No.
LCR Meter 1730T

150821/A4 Page 9 of 110
Accessories
Accessories Included
Item Quantity QuadTech P/N
AC Power Cord 1 4200-0300
Power Line Fuse 1A 250V SB 1 520026
Power Line Fuse 0.5A 250V SB 1 520138
Transformer Test Fixture 1 630166
Lead Set: 4 BNC Connectors to 2 Kelvin Clips 1 1700-03
Instruction Manual 1 150821
Calibration Certificate 1 N/A
Accessories/Options Available
Item Quantity QuadTech P/N
Axial/Radial Component Test Fixture 1 1700-01
Axial/Radial Remote Test Fixture 1 1700-02
Lead Set: 4 BNC Connectors to 2 Kelvin Clips 1 1700-03
BNC to BNC Cable Lead Set (1m) 1 7000-01
BNC to BNC Cable Lead Set (2m) 1 7000-02
Lead Set: 4 BNC Connectors to Chip Component Tweezers 1 7000-05
Low Voltage Chip Component Test Fixture 1 7000-07
50-pin micro-ribbon plug (for Handler) 1 329210
Transformer Test Fixture (standard with unit) 1 630166
NOTE:
For proper operation, the HCUR/HPOT/ICUR/IPOT cable shields must be connected together at the
DUT. This connection is already made using the 1730T recommended accessory leads.
If the shields are not tied together, then at higher frequencies a resonance may occur which could
cause erroneous capacitance readings.

Page 10 of 110 150821/A4

150821/A4 Page 11 of 110
Safety Precautions
CAUTION
The 1730T LCR Meter can provide an external bias output voltage of 5V DC to the device under
test (DUT). Although the 1730T unit is a low voltage instrument, some devices tested
(especially capacitors) can store charge and may cause serious hazards if not discharged
properly. Follow these safety instructions.
1. Operate the 1730T unit with its chassis connected to earth ground. The instrument is
shipped with a three-prong power cord to provide this connection to ground. This power
cord should only be plugged in to a receptacle that provides earth ground. Serious injury
can result if the 1730T unit is not connected to earth ground.
2. Tightly connect BNC cables to the silver output terminals: HPOT, HCUR, LPOT, and LCUR.
If this is not done, the DUT’s casing can be charged to the high voltage test level and
injury or electrical shock hazards could result if the DUT is touched.
3. Never touch the test leads, test fixture or DUT in any manner (this includes insulation on
all wires and clips) when the bias voltage is applied and the BIAS backlight is ON.
4. Before turning on the 1730T unit, make sure there is no device (DUT) or fixture
connected to the test leads.
5. When the BIAS backlight is ON, NEVER touch the device under test, the lead wires or
the output terminals.
6. Before touching the test lead wires or output terminals make sure:
a) Make sure any capacitive device has been discharged fully.
b) The BIAS backlight is OFF.
7. In the case of an emergency, turn OFF the POWER switch using a “hot stick” and
disconnect the AC power cord from the wall. Do not touch the 1730T instrument.
8. Be wary when the 1730T instrument is used in remote control mode. The bias voltage
output is being turned on and off with an external signal.

Page 12 of 110 150821/A4
Safety Symbols
The product is marked with the following safety symbols.
!Product will be marked with this symbol (ISO#3864) when it is necessary for the user to refer to
the instruction manual in order to prevent injury or equipment damage.
Product marked with this symbol (IEC417) indicates presence of direct current.
Product will be marked with this symbol (ISO#3864) when voltages in excess of 1000V are
present.
Indicates the grounding protect terminal, which is used to prevent electric shock from the
leakage on chassis. The ground terminal must connect to earth before using the product.
Warning Procedure can cause hazard to human if the warning is neglected.
Caution Avoid product misuse. It may cause damage to the product itself and the DUT if the
caution is neglected.
Note Important information or tips for the procedures and applications.
Warning Signal During Testing
“DANGER – HIGH VOLTAGE TEST IN PROGRESS, UNAUTHORIZED PERSONS
KEEP AWAY”
Disposal
Do not dispose of electrical appliances as unsorted municipal waste, use
separate collection facilities. Contact your local government for
information regarding the collection systems available. If
electrical appliances are disposed of in landfills or dumps,
hazardous substances can leak into the groundwater and get into
the food chain, damaging your health and well-being. When
replacing old appliances with new one, the retailer is legally
obligated to take back your old appliances for disposal.

150821/A4 Page 13 of 110
Condensed Operating Instructions
General Information
The 1730T LCR Meter is an instrument for measuring the passive component primary
parameters of inductance (L), capacitance (C), resistance (R) and impedance (Z). Secondary
parameters measured are dissipation factor (D), quality factor (Q), equivalent series resistance
(ESR), reactance (X), phase angle (θ), mutual inductance (M), turns ratio (N), inverse of turns
ratio (1/N) and resistance (R2). Two of sixteen parameters can be measured simultaneously and
the results formatted as value, deviation from nominal, %deviation from nominal or by bin
number. Connection to device under test is through 4-BNC terminals on the front panel.
Start-Up
The 1730T LCR Meter can be operated from a power source between 90-125V or 190-250V AC
at a power line frequency of 50 or 60Hz. The standard 1730T unit is shipped from QuadTech
with a 1A fuse in place for AC 90-125V operation. (A 0.5A fuse is included for AC 190-250V
operation). The 1730T unit is shipped with the line voltage selector set for 115V. Refer to
paragraph 1.4.3 for instructions on changing the fuse or line voltage selector.
Connect the 1730T LCR Meter AC power cord to the source of proper voltage. Operate the
1730T instrument with its chassis connected to earth ground. The 1730T instrument is shipped
with a three-prong power cord to provide this connection to ground. This power cord should
only be plugged into a receptacle that provides earth ground. Serious injury may result if the
1730T instrument is not connected to earth ground.
To turn the 1730T instrument ON, press the power button on the front panel. To switch the
power OFF press the button again or if measurements are to be made proceed with the Test
Parameter Setup in Table COI-1. The 1730T instrument should warm up for 15 minutes prior to
use.
NOTE
Please read this instruction manual in its entirety before operating this instrument.
These condensed operating instructions are not a substitute for all the information provided in the
remainder of this manual.
NOTE
Refer to paragraphs 2.3 through 2.4 for a full description of programming test parameters and
instruction on how to store the test setup. Test parameters must be set before the 1730T
instrument can be zeroed.

Page 14 of 110 150821/A4
Condensed Operating Instructions (Continued)
There are three main menus within the 1730T LCR Meter instrument software. Familiarize
yourself with these menus prior to programming a test. Figure COI-1 illustrates the MEAS
DISPLAY screen and lists the functions that can be accessed by pressing the [MAIN INDEX]
and [SYSTEM SETUP] keys.
MEAS DISPLAY
Function of F1 - F4 Keys
FREQ.: 100kHz
LEVEL: 1.00V
NEXT PAGE 1/4
PARA.: Cs - D
BIAS
LOCK
Cs : 1.2345 pF
D : 1.2345
MEAS
DISPLAY SYSTEM SETUP
MAIN
INDEX
SPEED
RANGE
BINNING
RECALL
BIN COUNT
BIN SET
STORE
CORRECTION
COMPARE
GPIB EOS Code
AVERAGE Time
LINK 1320
SETTING
STORE
COUNT
RECALL
GPIB ADDRESS Code
TRIGGER Edge
TRIGGER Delay
CONST Source
VM / IM Display
CABLE Length
BIAS Voltage
TRIGger
BEEPER
KEY LOCK
NEXT PAGE 2/4
BINNING
NEXT PAGE 1/4
FREQ.
LEVEL
PARAmeter
< MEAS DISPLAY >
SHORT
OPEN INTEGER Cycle
HANDLER Mode
ALARM Mode
SOUND Mode
CONTRAST
F1
F3
F2
MEAS
DISPLAY
F4
TRIGGER
MAIN
INDEX SYSTEM SETUP
SYSTEM CONFIG
Vm:
Im: 1000.00mV 0.00mA
COMPARE
NEXT PAGE 3/4
BIAS Current
NEXT PAGE 4/4
Figure COI-1: 1730T Instrument Menus
NOTE:
The function keys [F1 – F4] are used to select the parameter to change and in some menus to
change the value of that selected parameter.
The function of UP/DOWN depends on the menu. In some menus, the LEFT/RIGHT keys are
used to select a digit by moving the underscored cursor left or right.
NOTE:
To exit REMOTE mode press [F1] [F4] [SYSTEM SETUP].

150821/A4 Page 15 of 110
Condensed Operating Instructions (Continued)
1. Set Test Parameters
•Press [POWER] ON.
•Allow the instrument to warm up for 15 minutes.
•Press [MEAS DISPLAY]
•Set test parameters (frequency, voltage, parameters) using the function & arrow keys.
2. Correction (Zero)
After setting your test parameters, use the correction function of the 1730T LCR Meter
instrument to zero the test leads. With no device connected, connect the appropriate cable to
the front panel BNC connectors. Refer to paragraph 2.6 for cable connections.
With the instrument in MEAS DISPLAY status:
1. Press [MAIN INDEX]
2. Press [CORRECTION]
3. Press [F2] = OPEN (or [F3] = SHORT) to select zero function.
4. Press [F2] = MULTI to select frequency.
5. Follow instructions on display: i.e.: “Open circuit test leads”.
6. Press [TRIGGER] button.
7. Wait while instrument gets CORRECTION value.
8. Press [ANY KEY] to return to MEAS DISPLAY status.
9. Repeat steps 3-8 for SHORT correction.
1730T LCR Meter
L
CUR
H
CUR
H
POT
L
POT
QuadTech
(-) (+)
F1
F4
F3
F2
01
l
OPEN
L
CUR
L
POT
H
POT
H
CUR
(+)(-)
QuadTech 1700-03 Test Leads
<MAIN INDEX CORRECT OPEN>
ABORT
MULTI
SINGLE
Cp : 0.023 pF
FREQ.: 100.0kHz RANGE : 4
CALIB : 3
MEASURED PASS ... 100%
PRESS ANY KEY TOESCAPE
SHORT
L
CUR
L
POT
H
POT
H
CUR
(+)(-)
QuadTech 1700-03 Test Leads
L
POT
L
CUR
H
CUR
H
POT
Figure COI-2: Correction OPEN & SHORT Configurations

Page 16 of 110 150821/A4
Condensed Operating Instructions (Continued)
3. Connection to Device under Test (DUT)
Figure COI-3 illustrates the connection of the 1730T LCR Meter to a single DUT using the
1700-03 4-BNC to Kelvin Clips cable lead set. The silver BNC connectors are connected to
the front panel BNC terminals on the 1730 unit: red to HCUR/HPOT and black to LCUR/LPOT.
The red Kelvin clip is connected to the high side of the DUT and the black Kelvin clip to the
low side of the DUT.
+-
DUT
1730T LCR Meter
L
CUR
H
CUR
H
POT
L
POT
QuadTech
(-) (+)
F1
F4
F3
F2
01
l
L
CUR
L
POT
H
POT
H
CUR
(+)(-)
QuadTech 1700-03 Test Leads
< MEAS DISPLAY >
NEXT PAGE 1/4
LEVEL: 1.00 V
FREQ.: 1.0 kHz
Cs : 0.023 pF
Vm : 1000.00 mV
PARA.: Cs - D
D : 0.000
Im : 0.00 mA
COI-3: Connection to Device under Test
4. Make a Measurement
1. Press [MEAS DISPLAY]
2. Connect device under test (DUT) to test leads.
3. Press [TRIGGER].
4. Record measurement.
NOTE:
For proper operation, the HCUR/HPOT/ICUR/IPOT cable shields must be connected together at the DUT. This connection
is already made using the 1730T recommended accessory leads.
If the shields are not tied together, then at higher frequencies a resonance may occur which could cause erroneous
capacitance readings.

Introduction 150821/A4 Page 17 of 110
Section 1: Introduction
1.1 Unpacking and Inspection
Inspect the shipping carton before opening. If damaged, contact the carrier agent immediately.
Inspect the 1730T LCR Meter instrument for any damage. If the instrument appears damaged or
fails to meet specifications notify QuadTech (refer to instruction manual front cover) or its local
representative. Retain the original shipping carton and packing material for future use such as
returning the instrument for recalibration or service.
1.2 Product Overview
The 1730T LCR Meter instrument is a compact yet powerful LCR meter for production or
laboratory testing of inductors, capacitors, resistors and other passive components. The 1730
instrument measures 16 parameters: Ls, Lp, Cs, Cp, Rs, Rp, D, Q, ESR, ⏐Z⏐, Xs, θ, N, 1/N, M,
and R2 and displays two simultaneously. Basic accuracy is ±0.1% for LCR and ±0.001 for DQ
measurements. Ranging is automatic or user selectable. Measurement rate is also selectable
(Slow, Medium or Fast) with rates up to 62 measurements per second. Measurements can be
made continuously or triggered with a programmable delay time up to 10 seconds. The IEEE-
488 and Handler interfaces are standard equipment on the 1730T instrument. External bias
voltage measurements are made via connection to the rear panel terminal strip and levels of 0-5V
DC are possible. Internal bias voltage from 0-5V is attainable using an RBIAS resistor across the
rear panel terminal strip. Voltage across and current through the DUT can be monitored using the
test signal. Zero the effects of stray admittance/residual impedance in the test leads with the
open/short correction function. The source impedance of the 1730T instrument is selectable as
100Ω, 100/25Ω, 25Ω, or 10Ωconstant current. Ten test frequencies are selectable from 50Hz to
100kHz. The 1730T instrument is equipped with 8 Pass/Fail bins and 50 Store/Recall memory
locations. Test results can be formatted as nominal value, deviation from nominal value or
%deviation from nominal value. Bin number or Pass/Fail can be displayed as well. Connection
to the device under test is through 4 BNC terminals on the front panel.
1730T LCR Meter
L
CUR
H
CUR
H
POT
L
POT
QuadTech
(-) (+)
F1
F4
F3
F2
F1
F3
F2
MEAS
DISPLAY
F4
TRIGGER
MAIN
INDEX SYSTEM SETUP
01
l
<MEAS DISPLAY>
NEXTPAGE 1/4
PARA : Cs - D
LEVEL : 1.00 V
FREQ. : 100 kHz
Cs : 1.2345 pF
D : 1.2345
Figure 1-1: 1730T LCR Meter

Page 18 of 110 150821/A4 Introduction
1.3 Controls and Indicators
1.3.1 Front Panel Controls and Indicators
Figure 1-2 illustrates the controls and indicators on the front panel of the 1730T LCR Meter
instrument. Table 1-1 identifies them with description and function.
Figure 1-2: 1730T Front Panel Controls & Indicators
Table 1-1: 1730T Front Panel Controls & Indicators
Reference #
Figure 1-2 Name Type Function
1 Green Push Button Apply AC POWER: 1=ON, 0=OFF
2 Silver Banana Jack Chassis ground connection
3 LCUR
LPOT
HPOT
HCUR
4 silver BNC
terminals
Current Drive Terminal, Low (-)
Voltage Sense Terminal, Low (-)
Voltage Sense Terminal, High (+)
Current Drive Terminal, High (+)
4 F1, F2, F3
and F4
4 gray push buttons Select Instrument Functions
Keys perform different functions under different menus.
Right side of display shows corresponding key function.
5 ◄, ▼, ►, ▲4 gray push buttons Move backlit box around display to choose parameter
Change parameter value (increase/decrease)
6 TRIGGER Gray push button Initiate measurement
7 SYSTEM
SETUP
Gray push button View, Select or Change System Parameters:
GPIB, Trigger, Handler, Constant source, VM/IM
display, Average, Beeper, Sound, Alarm, Contrast,
Integer, Cable Length, Key Lock & Link 1320
8 MAIN
INDEX
Gray push button View, Select or Change Setup & Result Parameters:
Binning, Compare, Correction & Store & Recall
9 MEAS
DISPLAY
Gray push button View, Select or Change Measurement Parameters:
Frequency, Voltage, Parameter (Pri/Sec), Range, Speed,
Trigger, Bias Voltage, Binning and Compare
10 240 x 64 LCD
display
Show measurement results as value, deviation,
%deviation, bin number or pass/fail.
Show programming instructions
1730T LCR Meter
L
CUR
H
CUR
H
POT
L
POT
QuadTech
(-) (+)
F1
F4
F3
F2
F1
F3
F2
MEAS
DISPLAY
F4
TRIGGER
MAIN
INDEX SYSTEM SETUP
01
l
<MEAS DISPLAY>
NEXT PAGE 1/4
PARA : Cs - D
LEVEL : 1.00 V
FREQ. : 100 kHz
Cs : 1.2345 pF
D : 1.2345
1 423 56
98710

Introduction 150821/A4 Page 19 of 110
1.3.2 Rear Panel Controls and Connectors
Figure 1-3 illustrates the controls and connectors on the rear panel of the 1730T LCR Meter
instrument. Table 1-2 identifies them with description and function.
1 4235
6879
EXTBIAS
(-) (+)
FUSE
R
BIAS
HANDLER INTERFACE IEEE-488 INTERFACE
GUARD
LINE VOLTAGE
SELECTED
115V
115V
230V
!
!
POLLUTION DEGREE 2
INSTALLATION CATEGORY I
115V ~/230V~
50/60Hz 65W MAX
+5V MAX INPUT
!
MODEL NO.
SERIAL NO.
Figure 1-3: Rear Panel 1730T Instrument
Table 1-2: 1730T Rear Panel Controls & Connectors
Reference #
Figure 1-3 Name Type Function
1 EXT BIAS Silver BNC terminal External Bias Voltage output connection to DUT
2 FAN SF11580AT
115V 50/60Hz 0.10A
Cool Unit: T≥50°C = ON, T<45°C = OFF
3 AC Line Input Black 3-wire inlet
module
Connection to AC power source
4 GUARD Silver banana jack Chassis ground connection
5 LINE VOLTAGE
SELECTED
2 Red 2-position
Slide Switches
Select Voltage Level corresponding to AC Source
90V – 125V: T1.0A 250V fuse
190V – 250V: T 0.5A 250V fuse
6 FUSE Black screw cap fuse
holder
Short circuit protection
T 1.0A 250V fuse for 115V operation
T 0.5A 250V fuse for 230V operation
7 IEEE-488
INTERFACE
Blue 24-pin
connector
IEEE-488 Interface connector for data transfer
8 HANDLER
INTERFACE
Blue 50-pin
connector
Handler Interface connector for remote operation
9 RBIAS Black 4-screw
terminal strip
Remote connection: resistor for internal bias voltage
(0-5V) and bias current (0-200mA)

Page 20 of 110 150821/A4 Introduction
1.4 Installation
1.4.1 Dimensions
The 1730T LCR Meter unit is supplied in a bench configuration, i.e., in a cabinet with resilient
feet for placement on a table. A bail is provided under the front feet so that the 1730T instrument
can be tilted up for convenient operator viewing.
1730T LCR Meter
L
CUR
H
CUR
H
POT
L
POT
QuadTech
(-) (+)
F1
F4
F3
F2
F1
F3
F2
MEAS
DISPLAY
F4
TRIGGER
MAIN
INDEX SYSTEM SETUP
01
l
<MEAS DISPLAY>
NEXTPAGE 1/4
PARA : Cs - D
LEVEL : 1.00 V
FREQ. : 100 kHz
Cs : 1.2345 pF
D : 1.2345
4"
100.00mm
12.50"
312.50mm
13.50"
337.50mm
Figure 1-4: 1730T Instrument Dimensions
1.4.2 Instrument Positioning
The 1730T instrument contains one (1) graphic display for direct readout of measured
parameters. The optimum angle for viewing is slightly down and about 10 degrees either side of
center. For bench operation the front flip feet should always be used to angle the instrument up.
In bench or rack mount applications the instrument should be positioned with consideration for
ample air flow around the rear panel fan ventilation hole. An open space of at least 3 inches
(75mm) is recommended behind the rear panel. Testing should be performed on a non-
conductive surface. An ESD mat is not a recommended test platform.
1.4.3 Power Requirements
The 1730T can be operated from a power source of 90 to 125V AC or 190 to 250V AC. Power
connection is via the rear panel through a standard receptacle. Before connecting the 3-wire
power cord between the unit and AC power source, make sure the voltage selection switches on
the rear panel (Figure 1-5) are in accordance with the power source being used. For a 90-125V
source, use a 1A 250V fuse. For a 190-250V source, use a 0.5A 250V fuse. Always use an
outlet that has a properly connected protection ground.