Extech Instruments 7630 Operation Manual page 116

Touch current tester
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Connect0.02VAC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power
supply and meter are connected, press TEST to activate the calibration. Read the measurement
from your standard and enter it using the numeric keypad. You may now store the new
calibration number by pressing the ENTER key or escape by pressing the EXIT key or the
RESET button.
25. LLT× 256AC range : Calibration of LLT MD Volts AC Peak x 256
Connect0.03Vp AC supply and a voltmeter to Probe-HI + and Probe-LO -. When the power
supply and meter are connected, press TEST to activate the calibration. Read the measurement
from your standard and enter it using the numeric keypad. You may now store the new
calibration number by pressing the ENTER key or escape by pressing the EXIT key or the
RESET button.
26. LLT UL544NP:Calibration of Touch Current Test MD: UL 544NP measuring device
110

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