Designed and manufactured in Europe
82100-1050 Iss. 2A
LCR400 low-cost precision LCR bridge
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves
the right to alter specifications without prior notice.
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon. Cambs. PE29 7DR U.K.
Tel: +44 (0)1480 412451 Fax: +44 (0)1480 450409
Email: info@aimtti.com Web: www.aimtti.com
MEASUREMENT FUNCTIONS
Parameters Measured: R, L, C, D, & Q.
Parameter Selection: Manual or automatic selection of R, L or C.
Measurement Modes: Series or parallel equivalent circuit.
Range Hold: Prevents autoranging when changing
components.
Zero Function: Nulls out up to 100pF at test fixture.
Measurement Freq.: Selectable as 100Hz/120Hz, 1kHz, 10kHz.
Displayed Functions: R+Q, L+Q, C+D, C+R.
MEASURING RANGES
Resistance: 0.1mWto 990MW
Inductance: 0.001µH to 9900H
Capacitance: 0.001pF to 99000µF
D: 0.001 to 999
Q: 0.001 to 999
Accuracy Limits: 100Hz 1kHz 10kHz
R0.1% ± 1 digit 2W-1MW2W-500kW2W-50kW
0.5% ± 1 digit 0.4W-5MW0.4W-2MW0.4W-200kW
2% ±1 digit 0.1W-20MW0.1W-10MW0.1W-500kW
L0.1% ± 1 digit 4mH-500H 0.4mH-50H 40µH-5H
0.5% ± 1 digit 0.8mH-2500H 80µH-250H 8µH-25H
2% ± 1 digit 0.2mH-9900H 20µH-1000H 2µH-100H
C0.1% ± 1 digit 10nF-1000µF 1nF-100µF 100pF-10µF
0.5% ± 1 digit 2nF-5000µF 200pF-500µF 20pF-50µF
2% ± 1 digit 500pF-20000µF 50pF-2000µF 5pF-200µF
(R accuracies apply for Q<0.1. L accuracies apply for Q>10.
C accuracies apply for D<0.1 and after Null).
LIMITS COMPARATOR
Limits Set-up: Multiple Upper and Lower limits can be set
from keyboard or from RS-232 interface
Binning: Up to 8 Pass bins can be defined plus Fail on
minor parameter and general Fail.
COMPONENT CONNECTION
Component Connection: 4-terminal connection via internal fixture for
both radial and axial components.
External 4-terminal connection via adaptor.
Internal Fixture: Sprung jaws for vertical lead insertion. Plug-in
sliding pillars for horizontal lead insertion.
Bias Voltage: Switchable 2V polarising voltage. External
bias up to 50V can be applied.
Protection: Can withstand charged capacitors up to 50V
and up to 1 Joule of total energy.
DISPLAY
Display Type: Dual 5-digit 0.56” LEDs.
Annunciators: LED annunciators for all functions and mea-
surement units.
Displayed Functions: R+Q, L+Q, C+D, C+R, PASS/FAIL, Bin No.
DIGITAL INTERFACE
Interface Type: RS-232 via 9 pin D connector, 9600 baud.
Interface Function: Full command and readback capability.
GENERAL
Keyboard: Full numeric keyboard.
Non-volatile memory: Up to 9 complete set-ups.
Input Voltage: 230V or 115V ±14%, 50/60Hz, internally ad-
justable, 25VA max. Installation Category ll.
Temperature Range: +5oC to 40oC operating 20 - 80% RH,
-40oC to 70oC storage.
Safety: Complies with EN61010-1.
EMC: Complies with EN61326.
Size: 360 x 240 x 95 mm including feet.
Weight: 2.9kg.
OPTIONAL ACCESSORIES
SMD Tweezers: Four terminal tweezers for measuring surface
mount components. Connects directly into
standard test fixture.
BNC Adaptor: Plugs into the standard component fixture to
convert it into a set of four BNC connectors.
Supplied complete with four BNC to BNC
leads.
Kelvin Clip Leads: High quality Kelvin Clip test lead set terminat-
ing in BNC plugs (requires BNC adaptor).
LCR PC-Link: Windows based software which uses the
RS232 interface to provide results logging and
to store/restore instrument set-ups.