SANDOY TEKNOLOGIES Pvt. Ltd.

No.95, 1st Floor, Road No.6A, Jyothi Colony, SECUNDERABAD - 500 015 (TELANGANA), INDIA
Tel : +91-40-27744445 ; E-Mail : sandoyteknologies@gmail.com

DIGITAL TURNS TESTER & DIGITAL LCRTZ METER (TURNS-LCRTZ)

( Multiple test in one instrument )

Coil Turns Tester , Turns Tester , Turns Counter , Coil Turns Counter , Toroidal Turns Tester , Bobbin Turns Tester , Coil Turns Tester , Ratio Turns Tester / Counter for Toroidal Coils, Current Transformer

Technical Data

Demonstration Video of TURNS-LCRTZ

Vasavi Digital Turns Tester can test

Inductance , Capacitance , AC Resistance, DC Resistance , Impedance, Transformation Ratio (for transformers with TR JIG)
Turns and winding polarity . Simultaneous indication of value & tan delta . Very high resolution of tan delta. 0.0001

Optional RS232C port for PC control with control software for MULTI-TESTING.

VASAVI LCR METER VLCRTZ METER SPECIFICATIONS:

Measurement Freq.	50Hz, 100HZ,500Hz, 1KHz, 5KHz,10 KHz
Measurement Voltage	0.1 V ~ 1.0 V RMS
Four Terminal or Kelvin Test	For eliminating lead resistance/inductance.
Measure Mode	Series/Parallel EQ. selectable
Display	Simultaneous display of Value with Units and D.F/Q.F.: 0.5" LED Display : 4dgt -Value, 2dgt -Units 4 dgt - D.F./Q.F/P.A. Plus LED status indication
Auto Ranging	with Range-Hold facility
Inductance (L)	0.1uH-200H
Quality Factor (Q.F.)	0.001- 999 (+2%+0.1Q @ 1KHZ, +5%+0.5Q@ Other Freq. Q<100.0)
Capacitance(C):	0.1pF-2000uF
Tan Delta (D.F.)	0.0001-9.999 (+0.0002+1%rdg @ 1KHZ, +0.001+2%rdg @ Other Freq.
Res. (Rac) & Impedance (Z)	0.01 Ohm-200KOhm
Res. (Rdc)	0.01Ohm-20KOhm
Trans.Ratio & POLARITY	0.001-1.0000 ( +0.2%+1 dgt @ 1KHZ +0.5%+1 dgt @ OTHER ) With TRJIG (Supplied on option)
Turns & Polarity Toroidal / Bobbin	1 Turn ~ 10,000 Turns (0.5% + 0.5T)
Power requirement	110~230V / 50 ~ 60 Hz AC MAINS

Vasavi Digital TURNS TESTER ATTACHMENTS

Toroidal Turns Platforms:

TTPT100 : 5 T - 1000 T , TTPT1000 : 500T-10000 T
Accuracy : + 0.2% + 0.5T for high and medium permeability cores at suitable test frequency.
Internal Diameter must be able to pass a wire as thin as 0.2 mm. External Diameter as high as 200 mm.
Test Frequency Selectable 50, 100 , 500, 1, 5, 10 KHz.
Test Voltage adjustable 100mV to 1V in steps of 50mV.
The Platform has 2 connections for the coil and 2 for the probe wire. Measurement principle is based on dynamic comparison of the voltage across one turn and the coil. You will be able to get the polarity or winding indication with respect to the one turn reference.

Possible Tests:Can test Turns, Inductance, Polarity, DC resistance at one go by controlling the instrument by PC and connecting the coil to the platform.

Turns test for non-toroidal coils or transformers: Test turns for any transformer or coil with core . The core can be EI,EE,UU, RM, POT etc. You must be able to pass any thin probe wire around the winding. The core must not have air gap.

Other Features

Kelvin Test: For Direct connection without platform the instrument has 2 pairs of connections. One pair for drive and the other pair for sense. This separate connection can be utilized for testing transmission / transformation parameters. You will be able to test transformation ratio.

Impedance Test: Though impedance is 2 pin test, it also involves connection of load impedance or load resistance. If you are testing impedance only, you can connect the load impedance permanently to the test jig.

Winding Polarity Test: In addition to Transformation ratio test, the instrumentalso checks the polarity of winding with respect to reference winding. If the secondary is not in phase with primary then the system displays -ve sign.

Unbalance Test (with RS232C control): This test calculates the percentage unbalance of the previous two tests. You can measure unbalance of Inductance, Capacitance, Resistance and Impedance. If the individual readings are R1 and R2 then
UNBALANCE= (R1- R2) x 100
(R1+R2)

Vasavi Digital Turns Tester with RS232C Control : (PC Control Software)

The instrument is controlled through external PC through RS232C port. The system software works on Windows platform. All the test results will be transferred to a database files with connected file name. The database table is compatible to fox-pro table. You can import these files to other softwares for creating graphs and other analysis.

User Friendly Menu driven software
The instrument not only tests and displays the results but also analyses the tested results against set limits on each parameter.Each test can be defined with different test parameters and different test conditions like Test frequency. After completing the tests as per defined procedure the results are dynamically displayed after each test on the monitor of the system.

Password Requirement: The control software expects two levels of users.
Level-1 user - Person with Password: A person who understands the transformer, its windings, drawings, specifications. This person will be provided with the password and will be able to access all menu items.
Level-2 user - Person without Password: This persons can select the test file, test the components and take reports.

Testing Multi-pin transformers at one go with Pause Option: You can test multipin component with this option. The system pauses before each test. Suppose that you have defined 10 tests with pause option. While testing, the display prompts you to press a key before each test. Before pressing the key change the input connections for the coming test. You need not to remember or note the test results for each test. The system consolidates all the defined tests , displays the tested results and also prompts you Go or NO GO based on limits entered for each parameter. Further you can also take a report on the printer if selected and connected.

Pictures of TURNS-LCRTZ :

TUNS-LCRTZ : Technical Data ; YouTube Demonstration