Technical data

1 Calibration Procedures
Performance Verification Tests
28 U1270 Series Service Guide
Table 1 - 2 Performance verification tests
Step Test function Range 5520 output Error from nominal 1 year
U1271A U1272A/
U1273A/U1273AX
1
[1]
Qik-V Turn the rotary
switch to the position.
1000 V 1000 V ±20 V -
1000 V, 70 Hz ±250 V -
Z
LOW
Turn the rotary
switch to the position.
1000 V 3 V - ±2.0 V
NOTE: First connect the COM and Ω terminals of the U1252B (or equivalent) to the COM and V terminals of the
U1272A/U1273A/U1273AX, then turn the U1272A/U1273A/U1273AX rotary switch to the position before
proceeding with the following Z
LOW
functional test.
U1252B input
Z
LOW
Turn the rotary
switch to the position.
1000 V 1.67 kΩ - ±0.167 kΩ
[1] Functional test only.
Qik-V
Z LOW
Z LOW
Z LOW