Vitrek 952i - DC Voltage Verification; DC Current Scaling Verification

95x Series Operating Manual - May 17, 2022
Page 117 of 155
The 95x then performs a few internal tests to ensure basic functionality of the product then starts the actual
verification procedure which is described in the following sub-sections in the order shown -
DC VOLTAGE VERIFICATION
The user should connect a DC Voltage measuring device (equipment #1 in the equipment list above) to the HV (+)
and the GND/GUARD (-) terminals of the 95x. While the 95x prompts whether to verify the voltage, there are no
unsafe voltages present so the user may safely make connections and configure the measurement device as
needed. In some circumstances a different measuring device may be used depending on the voltage being
measured. ENSURE THAT THE MEASURING DEVICE AND WIRING IS CAPABLE OF WITHSTANDING THE VOLTAGE
LEVEL PRIOR TO PRESSING THE START SWITCH AT EACH STEP.
The table below shows the fullest listing of the voltages requested for verification and the 95x specification at each
level. When prompted for each step the user should either –
• Press START to perform the verification (the output voltage will be present after pressing this switch).
• Press STOP to abort the entire sequence.
During each step, the user should measure the actual voltage and record it, checking against the 95x specification.
When the user is satisfied that the step has been completed, the user should press START to continue or STOP to
abort the sequence.
Voltage Level
95x Models
95x Accuracy
14000V
957i only
±0.764% (107V)
10000V
953i,954i,955i and 957i only
957i : ±0.77% (77V)
Others: ±0.255% (25.5V)
6000V
All except 959i
957i: ±0.783% (47V)
Others: ±0.258% (15.5V)
1900V
All except 959i
957i: ±0.855% (16.25V)
Others: ±0.276% (5.25V)
1000V
All except 959i
957i: ±0.95% (9.5V)
Others: ±0.3% (3V)
500V
All except 959i
957i: ±1.15% (5.75V)
Others: ±0.35% (1.75V)
100V
All except 959i
957i: ±2.75% (2.75V)
Others: ±0.75% (0.75V)
DC CURRENT SCALING VERIFICATION
The user should connect a DC current source (equipment #2 in the list above) between the SENSE- (+) and the
GND/GUARD (-) terminals of the 95x.
The table below shows the listing of the currents prompted for verification and the 95x specification at each level.
When prompted for each step the user should either –
• Press START to perform the verification (the user should ensure that the requested current is present
prior to pressing this switch).
• Press STOP to abort the entire sequence.
During each step, the user should note the displayed current and record it, checking against the 95x specification.
When the user is satisfied that the step has been completed, the user should press START to continue or STOP to
abort the sequence.
Current Level
95x Accuracy