NF FRA51615, Instruction Manual

Page: 47 / 306

3.2 Input and output connectors
3
-
9
FRA 51615
3.2 Input and output connectors
■ Analyzer input connectors (CH1 and CH2)
The input and output channels of the instrument analysis module ( CH1 and CH2 ) are each electrically
isolated from the instrument enclosure. The oscillator output ( OSC ) is also isolated.
Maximum input voltage : 600 V CAT II or 300 V CAT III (BNC signal to BNC ground)
Input impedance : 1 M Ω ±2%, 20 pF ±5 pF in parallel
Isolation voltage : 600 V CAT II or 300 V CAT III (BNC ground to enclosure)
Connector : Front panel, insulated BNC connector
The isolation of the input connectors and the enclosure is maintained even when the power is turned off.
Figure 3-3 Isolation rating of the analyzer input connectors
！
WARNING
Do not connect this instrument to circuits that exceed MEASUREMENT CATEGORY
II/600 V or MEASUREMENT CATEGORY III/300 V. Doing so may result in insulation
breakdown and risk of electrical shock. This instrument may also be damaged by
connection to circuits that exceed the specifications.
1
MΩ
CH1
1
ATT
1
MΩ
CH2
2
ATT
Enclosure
CH1
600 V CAT
Ⅱ
300 V CAT
Ⅲ
600 V CAT
Ⅱ
300 V CAT
Ⅲ
600 V CAT
Ⅱ
300 V CAT
Ⅲ
CH2
600 V CAT
Ⅱ
300 V CAT
Ⅲ
600 V CAT
Ⅱ
300 V CAT
Ⅲ
600 V CAT
Ⅱ
300 V CAT
Ⅲ