Vitrek 944i - Meg-ohm and Low Resistance Calibration

1.4. Low Resistance.
To verify performance of the low resistance function first zero out the lead resistance of the test leads to be used (press
"LO Ω", "0", short leads then "Enter"). After the leads have been "nulled out", connect the leads to a calibrated 1 Ω
resistor. The 944i should display 1.000
±0.033 Ω.
944i Standard Unit and 944i DC-7 Calibration Data Table
Measurement Test Test Nominal Incoming Outgoing
Type Voltage Load Values Readings Dev. Readings Dev. Max. Tol.
Hi-pot Voltage 100 VDC 100 M
Ω
100 VDC VDC -100 VDC -100 ± 7.5 VDC
Hi-pot Voltage 500 VDC 100 M
Ω
500 VDC VDC -500 VDC -500 ± 16.8 VDC
Hi-pot Voltage 100 1 100 V V - V0 VDC 00 M
Ω
0 DC DC 1000 DC -1000 ± 23.7 VDC
Hi-pot Voltage 5000 VDC 100 M
Ω
5000 VDC VDC -5000 VDC -5000 ± 53.0 VDC
Hi-pot Voltage 7000 VDC 100 M
Ω
7000 VDC VDC -7000 VDC -7000 ± 62.7 VDC
Hi-pot Voltage 1000 VAC 100 M
Ω
1000 VAC VAC -1000 VAC -1000 ± 31.6 VAC
Hi-pot Voltage 5000 VAC 100 M
Ω
5000 VAC VAC -5000 VAC -5000 ± 70.7 VAC
Hi-pot Leakage 1000 VDC 1 G
Ω
1000 nA DC nA DC -1000 nA DC -1000 ± 12 nA DC
Hi-pot Leakage 1000 VDC 100 M
Ω
10 µA DC µA DC -10 µA DC -10 ± 80 nA DC
Hi-pot Leakage 1000 VDC 1 M
Ω
1 mA DC mA DC -1.000 mA DC -1.000 ± 18 µA DC
Hi-pot Leakage 1000 VDC 100 k
Ω
10 mA DC mA DC -10 mA DC -10 ± 130 µA DC
Hi-pot Leakage 1000 VAC 100 M
Ω
10 µA AC µA AC -10 µA AC -10 ± 1.05 µA AC
Hi-pot Leakage 1000 VAC 1 M
Ω
1 mA AC mA AC -1.000 mA AC -1.000 ± 35 µA AC
Hi-pot Leakage 1000 VAC 100 k
Ω
10 mA AC mA AC -10 mA AC -10 ± 550 µA AC
Lo-
Ω
Va ria b le 1
Ω
1.000
ΩΩ
-1
Ω
-1 ± 33 m
Ω
Lo-
Ω
Va ria b le 5
Ω
4.999
ΩΩ
-4.999
Ω
-4.999 ± 45 m
Ω
Measurement Test Test Nominal Incoming Outgoing
Type Voltage Load Values Readings Dev. Readings Dev. Max. Tol.
Hi-p o t Vo lt a g e 100 VDC 100 M
Ω
100 VDC VDC -100 VDC -100 ± 15.0 VDC
Hi-p o t Vo lt a g e 500 VDC 100 M
Ω
500 VDC VDC -500 VDC -500 ± 33.5 VDC
Hi-pot Voltage 1000 VDC 100 M
Ω
1000 VDC VDC -1000 VDC -1000 ± 47.4 VDC
Hi-pot Voltage 5000 VDC 100 M
Ω
5000 VDC VDC -5000 VDC -5000 ± 106.1 VDC
Hi-pot Voltage 7000 VDC 100 M
Ω
7000 VDC VDC -7000 VDC -7000 ± 125.5 VDC
Hi-pot Voltage 10000 VDC 100 M
Ω
10000 VDC VDC -10000 VDC -10000 ± 150.0 VDC
Hi-pot Voltage 1000 VAC 100 M
Ω
1000 VAC VAC -1000 VAC -1000 ± 31.6 VAC
Hi-pot Voltage 5000 VAC 100 M
Ω
5000 VAC VAC -5000 VAC -5000 ± 70.7 VAC
Hi-pot Leakage 1000 VDC 1 G
Ω
1000 nA DC nA DC -1000 nA DC -1000 ± 12 nA DC
Hi-pot Leakage 1000 VDC 100 M
Ω
10 µA DC µA DC -10 µA DC -10 ± 80 nA DC
Hi-pot Leakage 1000 VDC 1 M
Ω
1 mA DC mA DC -1.000 mA DC -1.000 ± 18 µA DC
Hi-pot Leakage 950 VDC 100 k
Ω
9.5 mA DC mA DC -9.5 mA DC -9.5 ± 130 µA DC
Hi-pot Leakage 1000 VAC 100 M
Ω
10 µA AC µA AC -10 µA AC -10 ± 1.05 µA AC
Hi-pot Leakage 1000 VAC 1 M
Ω
1 mA AC mA AC -1.000 mA AC -1.000 ± 35 µA AC
Hi-pot Leakage 1000 VAC 100 k
Ω
10 mA AC mA AC -10 mA AC -10 ± 550 µA AC
Lo-
Ω
Va ria b le 1
Ω
1.000
ΩΩ
-1
Ω
-1 ± 33 m
Ω
Lo-
Ω
Va ria b le 5
Ω
4.999
ΩΩ
-4.999
Ω
-4.999 ± 45 m
Ω
944i DC-10 10kv Calibration Data Table
944i LVIR Option Calibration Data Table