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Making Preparations for Measurements
3-15
IM 720120-01E
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7
App
Index
• To measure high voltage with the 720210 (HS100M12), 720211 (HS100M12),
701250 (HS10M12), 720250 (HS10M12), or 701251 (HS1M16), use the
isolated probes (700929, 701947), passive probes 702902, or 1:1 safety cables
(combination of 701901 and 701954).
• The BNC part of the passive probe 701940 is made of metal. Therefore, use
the probe at 42 V or less for isolated inputs (720210 (HS100M12), 720211
(HS100M12), 701250 (HS10M12), 720250 (HS10M12), 701251 (HS1M16),
701275 (ACCL/VOLT), or 701281 (FREQ)) for safety reasons. (Do not connect
voltage above 42 V to both the High and Low sides.) For non-isolated inputs
(701255 (NONISO_10M12), etc.), fasten the module screws.
• To measure high voltage with the 701281 (FREQ) or 720281 (FREQ) , use an
isolated probe (700929 or 701947) or passive probe 702902.
Maximum Input Voltages and Maximum rated voltage to earths for the
Modules
Applying a voltage exceeding the value indicated below may damage the input
section. If the frequency is above 1 kHz, the input section may be damaged even if
the voltage is less than the indicated values.
• For the 720210 (HS100M12) and 720211 (HS100M12)
Maximum input voltage (at a frequency of 1 kHz or less)
• In combination with an isolated probe (10:1) 700929 or (100:1) 701947, or a
passive probe (10:1) 702902
1
1000 V (DC + ACpeak) (CAT II)
• Safety cable (1:1) (combined with 701954)
3
200 V (DC + ACpeak)
• Direct input (cable that does not comply with the safety standards)
5
42V (DC + ACpeak)
Maximum rated voltage to earth (at a frequency of 1 kHz or less)
• In combination with an isolated probe (10:1) 700929 or (100:1) 701947,
2
or a
safety cable (1:1) (701954)
4
1000 Vrms (CAT II)
• In combination with a passive probe (10:1) 702902
2
1000 V (DC + ACpeak)
• Direct input(cable that does not comply with the safety standards)
6
42 V (DC + ACpeak) (CAT II, 30 Vrms)
• For the 701250 (HS10M12) and 720250 (HS10M12)
Maximum input voltage (at a frequency of 1 kHz or less)
• In combination with an isolated probe (10:1) 700929 or (100:1) 701947, or a
passive probe (10:1) 702902
1
701250: 600 V (DC + ACpeak)
720250: 800 V (DC + ACpeak)
• Safety cable (1:1) (combined with 701954)
3
200 V (DC + ACpeak) (as a value that meets the safety standard)
250 V (DC + ACpeak) ( maximum allowable voltage, as a value that does not
damage the instrument when applied)
• Direct input (cable that does not comply with the safety standards)
5
42V (DC + ACpeak) (CAT II, 30 Vrms)
Maximum rated voltage to earth (at a frequency of 1 kHz or less)
• In combination with an isolated probe (10:1) 700929 or (100:1) 701947, or a
passive probe (10:1) 702902
2
Or safety cable (1:1) (combined with 701954)
4
400 Vrms (Measurement Category Other (O)), 300 Vrms (CAT II)
• Direct input(cable that does not comply with the safety standards)
6
42 V (DC + ACpeak) (CAT II, 30 Vrms)
3.5 Connecting the Probes