Hioki MEMORY HiCORDER 8855, Instruction Manual

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Notes on Use
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DANGER
Probe Connection, Measurement Voltage Input
Maximum input voltage ratings for the input module and the input
terminals of the instrument are shown below. To avoid the risk of
electric shock and damage to the instrument, take care not to
exceed these ratings.
The maximum rated voltage to earth of the input module
(voltage between input terminals and main instrument frame
ground, and between inputs of other analog input modules) is
shown below. To avoid the risk of electric shock and damage
to the instrument, take care that voltage between channels
and between a channel and ground does not exceed these
ratings.
The maximum rated voltage to earth rating applies also if an
input attenuator or similar is used. Ensure that voltage does
not exceed these ratings.
When measuring power line voltages with the 8950, 8952 or
8953-10, always connect the probe to the secondary side of
the circuit breaker, so the breaker can prevent an accident if a
short circuit occurs. Connection to the primary side involves
the risk of electric shock and damage to the instrument.
Before using the instrument, make sure that the insulation on
the connection cords is undamaged and that no bare
conductors are improperly exposed. Using the products in
such conditions could cause an electric shock, so contact
your dealer or Hioki representative for replacements. (Model
9197, 9198.)
Input/output terminal Maximum input voltage Maximum rated voltage to earth
8950 (input) 400 V DC max. 370 V AC/DC
8951 (input) 30 V rms or 60 V DC 30 V rms or 60 V DC
8952 (input) 400 V DC max. 370 V AC/DC
8953-10 (input) 400 V DC max. 370 V AC/DC
8954 (input) 30 V rms or 60 V DC 370 V AC/DC
8955 (input) 30 V rms or 60 V DC 30 V rms or 60 V DC
9322
2000 V DC, 1000 V AC (CAT
II)
600 V DC/AC (CAT III)
When using grabber clips
1500 V DC/AC (CAT II), 600 V DC/AC (CAT III)
When using alligator clips
1000 V DC/AC (CAT II), 600 V DC/AC (CAT III)
EXT TRIG/ START
STOP/ EXT SMPL
-5 to +10 V DC
Not insulated
TRIG OUT/ GO/ NG/
EXT.OUT
-20 V to +30 V DC
500 mA max./ 200 mW max.
Notes on Use
Follow these precautions to ensure safe operation and to obtain the full
benefits of the various functions.