User Manual

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2.10 Notes on Measurement
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DANGE
R
Maximum input voltage ratings for the input units and the input
terminals of the 8826 are shown below. To avoid the risk of electric
shock and damage to the units, take care not to exceed these ratings.
The maximum rated voltage to earth of the input units (voltage between
input terminals and 8826 frame ground, and between inputs of other
analog units) is shown below. To avoid the risk of electric shock and
damage to the units, 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 8936 or 8938, always
connect the probe to the secondary side of the circuit breaker.
Connection to the primary side involves the risk of electric shock and
damage to the units.
Input/output termina
l
Maximum input voltage
Maximum rated voltage
to earth
8936 inputs 400 V DC max. 370 V AC/DC
8937 inputs 30 V rms or 60 V DC 30 Vrms or 60 V DC
8938 inputs 400 V DC max. 370 V AC/DC
8939 inputs 10 V DC max. 30 V rms or 60 V DC
8940 inputs
30 V rms or 60 V DC
(BNC/Sensor
connector terminal)
･ 30 V rms or 60 V DC
(BNC terminal)
･ Not insulated
(Sensor connector
terminal)
8947 inputs 30 V rms or 60 V DC
(BNC terminal)
30 V rms or 60 V DC
(BNC terminal)
The maximum allowable charge that can be applied to the miniature
connection terminals is 500 pC at the most sensitive of the six ranges,
and 50,000 pC at the least sensitive range.
EXT TRIG
START・STOP
PRINT
EXT SMPL
-5 to +10 V DC
Not insulated
TRIG OUT
GO
NG
-20 V to +30 V DC
500 mA max.
200 mW max.
9322
DIFFERENTIAL
PROBE
2000 V DCmax.
1000 V ACmax.
1500 V AC/DC
(when using grabber clips)
1000 V AC/DC
(when using alligator clips)
The external I/O terminal and the unit have a common GND
.
2
.10 Notes on Measurement