Hioki MEMORY HiCORDER 8855, Инструкция по эксплуатации

Страница: 134 / 264

114
────────────────────────────────────────────────────
5.7 Setting the Probe Voltage Division Ratio
────────────────────────────────────────────────────
DANGER
10:1 and 100:1 probe connections
The maximum rated to-voltage does not change when using
a 9665 10:1PROBE or a 9666 100:1PROBE. To avoid
electrical shock or damaging the 8855 instrument, make
probe connections in such a manner that the method for the
probe, and make sure the to-ground voltage does not exceed
the rated maximum.
The maximum input voltage is 1,000 V DC for the 9665
10:1PROBE, and 5,000 V DC for the 9666 100:1PROBE. (The
measurement category (overvoltage category) is the same as
that of the input modules of MEMORY HiCORDERs that use
the 9665 and the 9666. ) Do not measure voltages that
exceed the maximum input voltage, as the 8855 instrument
could be damaged and an accidents resulting in injury or
death could result.
Differential Probe Connection
When using grabber clips, the 9322's maximum rated
voltage to earth is 1500 V AC or DC (CAT ll) / 600 V AC or
DC (CAT lll); when using alligator clips, it is 1000 V AC or
DC (CAT ll) / 600 V AC or DC (CAT lll). To avoid electrical
shock and possible damage to the instrument, never apply
voltage greater than these limits between the input channel
terminals and chassis, or across the input of two 9322s.
Maximum input voltage is 1000 V AC/2000 V DC (CAT ll) /
600 V AC or DC (CAT lll). Attempting to measure voltage in
excess of the maximum rating could destroy the instrument
and result in personal injury or death.
NOTE
5.7 Setting the Probe Voltage Division Ratio
The 9665 10:1PROBE and the 9666 100:1PROBE cannot be used with the
8951 VOLTAGE/CURRENT UNIT, the 8954 VOLTAGE/TEMP UNIT, or
the 8955 F/V UNIT.
The voltage axis range changes automatically when the voltage division ratio
for the probe connected to the input terminal on the analog input module
and probe settings match, allowing you to read values directly.
Set each channel so that it matches the input probe voltage division ratio.