Extech Instruments 7630 Operation Manual page 112

Touch current tester
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Connect 5.0 VAC 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.
17. LLT× 1 AC range : Calibration of LLT MD Volts AC Peak x 1
Connect 8.0Vp 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.
18. LLT× 4 AC range : Calibration of LLT MD Volts AC x 4
106

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