Chroma 19053 - AC Real Current Calibration

HIPOT Tester 19051/19052/19053/19054 User’s Manual
press [UP]
display ACA 30mA offset (2.5mA) ; ACA 30.00mA range Offset
calibration
press [STOP] [START] ; read out the ammeter value
; example 2.503mA
press [UP] or [DOWN] key until display 2.503mA
press [ENTER] for saving calibration value.
press [STOP] ; stop ACA 30.00mA range Offset
calibration
Change the dummy load resistor to 50kΩ 200watt or higher.
press [UP]
display ACA 30mA full (25mA) ; ACA 30.00mA range full scale
calibration
press [STOP] [START] ; read out the ammeter value
; example 24.50mA
press [UP] or [DOWN] key until display 24.50mA
press [ENTER] ; stop ACA 30.00mA range full scale
calibration
8.3.2 AC Real Current Calibration
Connect a dummy load resistor 10MΩ between HI-POT testers. Connect HI terminal of
HI-POT tester to input HI terminal of AC ammeter, connect LO terminal of HI-POT tester to
input LO terminal of AC ammeter.
press [UP] key
display RACA 3mA offset (0.12mA) ; RACA 2.999mA range Offset
calibration
press [STOP] [START] ; read out the ammeter value
; example 0.124mA
press [UP] or [DOWN] key until display 0. 124mA
press [ENTER] for saving calibration value.
press [STOP] ; stop RACA 2.999mA range Offset
calibration
Change the dummy load resistor to 500kΩ 50watt or higher.
press [UP] to display
display RACA 3mA Full ( 2.5mA ) ; RACA 2.999mA range full scale
calibration
press [STOP] [START] ; read out the ammeter value
; example 2.503mA
press [UP] or [DOWN] key until display 2.503mA
press [ENTER] for saving calibration value.
press [STOP] ; stop RACA 2.999mA range full scale
calibration
press [UP]
display RACA 30mA offset (2.5mA) ; RACA 30mA range Offset calibration
press [STOP] [START] ; read out the ammeter value
; example 2.503mA
press [UP] or [DOWN] key until display 2.503mA
press [ENTER] for saving calibration value.
8-4
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