YOKOGAWA DL850E User Manual page 67

3.5 Connecting Probes
In Using the High Voltage Differential Probes
Be sure to connect the ground lead of the differential probe (700924, 700925, 701926) to
the functional grounding terminal on the right side panel of the DL850E/DL850EV before
connecting to the measurement target. Not doing so may cause high voltage to appear in the
BNC connector of the differential probe.
Maximum Input Voltages and Maximum Allowable Common Mode Voltages for the Modules
Applying a voltage exceeding the value indicated below may damage the input section. If the
frequency is above 1 kHz, damage may occur even when the voltage is below this value.
• 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
• In combination with a safety cable (1:1) (701901+701954)
• Direct input (cable that does not comply with the safety standards)
Maximum allowable common mode voltage (at a frequency of 1 kHz or less)
• In combination with an isolated probe (10:1) 700929 or (100:1) 701947,
• In combination with a passive probe (10:1) 702902
• Direct input (cable that does not comply with the safety standards)
• For the 701250 (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
• In combination with a safety cable (1:1) (701901+701954)
• Direct input (cable that does not comply with the safety standards)
Maximum allowable common mode 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
• Direct input (cable that does not comply with the safety standards)
• For the 701251 (HS1M16)
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
• In combination with a safety cable (1:1) (701901+701954)
• Direct input (cable that does not comply with the safety standards)
Maximum allowable common mode 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
• Direct input (cable that does not comply with the safety standards)
3-18
1
probe (10:1) 702902
1000 V (DC + ACpeak) CAT II
200 V (DC + ACpeak)
42V (DC + ACpeak)
cable (1:1) (701901+701954)
1000 Vrms (CAT II)
1000 V (DC + ACpeak)
42V (DC + ACpeak) (CAT II, 30 Vrms)
1
probe (10:1) 702902
600 V (DC + ACpeak)
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)
42V (DC + ACpeak)
2
probe (10:1) 702902 , or a safety cable (1:1) (701901+701954)
400 Vrms (measurement category Other (O)), 300 Vrms (CAT II)
42 V (DC + ACpeak) (CAT II, 30 Vrms)
1
probe (10:1) 702902
600 V (DC + ACpeak)
140 V (DC + ACpeak)
42V (DC + ACpeak)
2
probe (10:1) 702902 , or a safety cable (1:1) (701901+701954)
400 Vrms (measurement category Other (O)), 300 Vrms (CAT II)
42 V (DC + ACpeak) (CAT II, 30 Vrms)
4
2
3
5
2
or a safety
6
3
5
4
6
3
5
4
6
IM DL850E-03EN