Tonghui TH2840 Series - Test Combination; Mathematical Operation; Equivalent Mode; Range

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8.1.1.3 Transformer Scan
8.1.2 Test combination
Four parameters can be selected arbitrarily, regardless of primary and secondary parameters.
8.1.3 Mathematical operation
Operation between the measurement value and the programmable nominal value: absolute deviation
∆ABS and percent deviation ∆%.
8.1.4 Equivalent mode
Series and parallel
8.1.5 Range
Auto, Manual (Hold, increase and decrease)
8.1.6 Trigger
Single, continue.
Continue: Continuously measure the DUT and output the results for display;
Single: Press the "TRIGGER" key on the panel, the HANDLER interface of the instrument receives
the "start" signal from the outside, use the foot switch or use the bus trigger command to make the
instrument perform a measurement and output the result and display it, usually in a waiting state.
8.1.7 Delay time
Trigger delay: the time from trigger to start of measurement. 0-60 seconds, programmable, in 1ms
step;
Step delay: the delay time before the test signal is output to the measurement. 0-60 seconds,
programmable, in 1ms step.
Ns
Secondary turn
Ns:Np
Secondary turn
/primary turn
Np
Primary turn
Np:Ns
Primary turn
/secondary turn