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
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.
LCR METER VLCRTZ METER SPECIFICATIONS:
100HZ,500Hz, 1KHz, 5KHz,10 KHz
V ~ 1.0 V RMS
Terminal or Kelvin Test
eliminating lead resistance/inductance.
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
999 (+2%+0.1Q @ 1KHZ, +5%+0.5Q@ Other Freq.
(+0.0002+1%rdg @ 1KHZ, +0.001+2%rdg @
(Rac) & Impedance (Z)
( +0.2%+1 dgt @ 1KHZ +0.5%+1
dgt @ OTHER ) With TRJIG (Supplied on option)
Turn ~ 10,000 Turns (0.5% + 0.5T)
/ 50 ~ 60 Hz AC MAINS
Digital TURNS TESTER ATTACHMENTS
T - 1000 T , TTPT1000
0.2% + 0.5T for high and medium permeability cores at suitable test
Internal Diameter must be able to pass a wire as thin as 0.2 mm.
External Diameter as high as 200 mm.
Frequency Selectable 50, 100 , 500, 1, 5, 10 KHz.
Voltage adjustable 100mV to 1V in steps of 50mV.
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
test Turns, Inductance, Polarity, DC resistance at one go by controlling
the instrument by PC and connecting the coil to the platform.
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.
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 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.
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.
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
Digital Turns Tester with RS232C Control : (PC Control Software)
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.
Friendly Menu driven software
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.
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.
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.