TTi Precision Measurement Instruments

  LCR400 LCR Meter - Description and Specifications

LCR400 - Precision LCR Bridge

  0.1% basic measurement accuracy
  Dual 5 digit high brightness displays
  Automatic component recognition
  Built-in 4 terminal component fixture
  Limits comparator with 8 Pass bins plus 2 Fail bins
  Three test frequencies, switchable bias
  RS232 interface standard
  Optional Surface Mount Tweezers, BNC connectors,
    Kelvin Clip test lead set, and PC logging software

 

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   Picture of Optional Accessories

Bridging the price-performance gap

Anyone who has tried to purchase a high accuracy meter for LCR measurement at a reasonable cost will have discovered the problem.  
There are plenty of low cost hand-held LCR meters available, but the accuracy is poor and the facilities very limited.
There are plenty of high performance LCR bridges available, but the costs are typically an order of magnitude greater than the simple hand-held units.
The LCR400 bridges the gap. It provides the performance and facilities required for precision component measurement at a price not far above that of a hand-held unit.
The LCR400 is a low-cost precision LCR bridge intended for use within component inspection, laboratories and production facilities. The basic measurement accuracy is 0.1% and the maximum measurement frequency is 10kHz.

Designed for serious use

The LCR400 is housed in a rugged casing of sufficient weight to stay where it is put.
It incorporates a high quality four terminal test fixture with adaptors for axial or radial components. The fixture is unobstructed for ease of use with bandoliers.

Lower cost through innovative design

The LCR400 sets a new price standard for a high performance LCR meter. Advanced design techniques utilising the latest component technologies have made this possible.
Now a precision component measurement system is within the budget of every area of a company from the laboratory through to goods-inward inspection.

Full Component Sorting

The LCR400 provides comprehensive facilities for sorting components into ‘Bins’ according to value. The binning parameters can be defined from the keyboard of from a PC via the RS-232 interface.
Up to eight pass bins and two fail bins can be defined. Bin limits can be sequential or overlapping from a single nominal or can be based around different nominals.

Automated Control

The LCR400 incorporates non-volatile memory for up to nine complete instrument set-ups.
An RS-232 interface allows control to be exercised from a PC enabling the remote storage of set-ups and remote logging of results.

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: 0.1mOhms to 990MOhms
Inductance: 0.001H to 9900H
Capacitance: 0.001pF to 99000uF
D: 0.001 to 999
Q: 0.001 to 999
Accuracy Limits: 100Hz 1kHz 10kHz
Resistance 0.1% ± 1 digit 2Ohms-1MOhms 2Ohms-500kOhms 2Ohms-50kOhms
0.5% ± 1 digit 0.4Ohms-5MOhms 0.4Ohms-2MOhms 0.4Ohms-200kOhms
2% ± 1 digit 0.1Ohms-20MOhms 0.1Ohms-10MOhms 0.1Ohms-500kOhms
Inductance 0.1% ± 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
Capacitance 0.1% ± 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.
DISPLAY
Display Type: Dual 5-digit 0.56” LEDs.
Annunciators: LED annunciators for all functions and measurement 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.
GENERAL
Keyboard: Full numeric keyboard.
Non-volatile memory: Up to 9 complete set-ups.
Input Voltage: 230V or 115V ±14%, 50/60Hz, internally adjustable, 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 EN55081-1 and EN55082-1.
Size: 360 x 240 x 95 mm including feet.
Weight: 2.9kg approx.
OPTIONS
LCR-SMD: Surface Mount Tweezers (4 terminal).  Plugs directly into the standard component fixture on the LCR400.
LCR-BNC: Plugs into the standard component fixture to convert it into a set of four BNC connectors.  
                Supplied complete with four BNC to BNC leads.
LCR-K-Clip: High quality Kelvin Clip test lead set terminating in BNC plugs (requires LCR-BNC).
LCR-PCLink: Windows based software which logs results (values and binning) and can store/restore set-ups.

 Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves the right to alter specifications 
 without prior notice.

Thurlby Thandar Instruments Limited
Glebe Road, Huntingdon, Cambridgeshire PE29 7DR
Tel: 01480 412451  Fax: 01480 450409  Web: www.tti.co.uk  Email: sales@tti.co.uk