Section 8: Performance verification
Model 2290-10 10 kV Power Supply User's Manual
8-4
2290-10-900-01 Rev. A/December 2013
Table: DC voltage accuracy
Output voltage
(volts)
Voltage display limits
(volts)
Multimeter reading limits
(volts)
500
492
508
494.0
506.0
1000
992
1008
994.0
1006.0
1500
1492
1508
1494.0
1506.0
2000
1992
2008
1994.0
2006.0
2500
2492
2508
2494.0
2506.0
3000
2992
3008
2994.0
3006.0
3500
3492
3508
3494.0
3506.0
4000
3992
4008
3994.0
4006.0
4500
4492
4508
4494.0
4506.0
5000
4992
5008
4994.0
5006.0
6000
5992
6008
5994.0
6006.0
7000
6992
7008
6994.0
7006.0
8000
7992
8008
7994.0
8006.0
9000
8992
9008
8994.0
9006.0
10000
9992
10008
9994.0
10006.0
DC current accuracy
The DC current accuracy test measures the accuracy of the output current limit and the µA (current)
display.
1. Using the ohms function of the multimeter, measure and record the value of the 990 Ω resistor.
2. With the power off, connect the 990 Ω resistor, the 1 MΩ load resistor, and the multimeter to the
Model 2290-10 HIGH VOLTAGE output connector, as shown in the next figure. Note that the
multimeter is connected across the 990 Ω resistor.
Turn off high voltage and allow ample time for the voltage to discharge before changing any
connections.
For safety purposes, the resistors must be mounted within a safety shield connected to
safety earth ground using #18 AWG or larger wire. Be sure to connect the 990
Ω
resistor to
the low (chassis side) of the Model 2290-10 output. Otherwise, the multimeter will be floated
5 kV above earth ground, which could result in instrument damage or risk of electric shock.
Figure 16: Model 2290-10 Connections for DC current accuracy tests