App-14
IM 701830-01E
Appendix 7
For Input Module 701850 and 701851
When using the High-Speed Isolation Module (701850) and High-Speed Module (701851) for
the DL708/DL708E, please note the points below. Operations that are not described here are
the same as the 701855 and 701856. Please read the relevant sections carefully and always
follow the warnings and cautions that are given.
Connecting a probe(Page 3-9)
Connect the probe (or other input cables such as the BNC cable) to any of the input terminals of
the High-Speed Isolation/High-Speed Module.
WARNING
• When connecting the item to be measured, make sure to turn OFF the power on
the item. Connecting or disconnecting the measurement input cable while the item
being measured is turned ON is very dangerous.
• When making a voltage measurement on a common mode input voltage which is
above 42 V (DC+ACpeak) with the High-Speed Isolation Module, make sure to use
the dedicated probe, 700929.
• Applying a power above the value indicated below may cause damage to the input
section. At a frequency above 1 kHz, damage may occur even when the voltage is
lower than this voltage.
For High-Speed Isolation Module (701850)
Maximum input voltage (at a frequency of 1 kHz or less)
• Main instrument only (across the input terminals, H and L*
1
)
250 V (DC+ACpeak)(CAT I and II, 177 Vrms)
• Combined with 700929 (across the probe tips, H and L*
3
)
850 V (DC+ACpeak)(CAT I and II, 600 Vrms)
Maximum allowable common mode voltage (at a frequency of 1 kHz or less)
• Main instrument only (across the input terminal, L, and earth*
2
)
42 V (DC+ACpeak)(CAT I and II, 30 Vrms)
• Combined with 700929 (across the probe tip, H or L, and earth*
4
)
400 Vrms (CAT I and II)
(Specification when the EN61010-1 standard does not need to be satisfied: 600
Vrms)
For High-Speed Module (701851)
Maximum input voltage (across the input terminals, H and L*
5
, at a frequency of 1
kHz or less)
250 V (DC+ACpeak)(CAT I and II, 177 Vrms)
H
L
*4
*3
H
L
*1
*2
H
*5
Combined with 700929
701850
Input
terminal
earth
Main instrument only
701851
Input
terminal
earth
