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14
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High Frequency (HF):
(Should seldom require adjustment, however, if adjustment is required)
•
Apply a 1 MHz square wave to the probe (<0.7 ns rise-time)
•
Adjust the trimmer located on the probe body (HF) toward the cable end for
a flat topped square wave for the GE2500 series.
•
Adjust the trimmer located on the BNC box (HF) for a flat topped square
wave for the GE4500 series.
Over Compensated
Incorrect
Under Compensated
Incorrect
Properly Compensated
Correct
Figure 11: HF Waveform Compensation
Specifications
All specifications apply to the unit after a temperature stabilization time of 20
minutes over an ambient temperature range of 25°C ± 5°C.
Table 4: Electrical Characteristics 1500 Series
Electrical Characteristics
Model
Attn.
Input
Impedance
(MΩ / pF)
BW
(MHz)
Rise
Time
(ns)
Max Voltage
(DC + AC
peak
)
Voltage
Coefficient
(VCR)
Comp.
Range
(pF)
GE1511
10x
10/12
150
2.3
500 V CAT II
≤ 1.5
ppm/V
(2%)
10-30
GE1521
1x
10x
1/45
10/12
17
150
20
2.3
Содержание GE1511
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