3.1 Ensuring Measurement Safety
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Chapter 3 Measurement Procedure
Be sure to observe the following points, to ensure safe measurement.
Measurement
Procedure Chapter 3
3.1 Ensuring Measurement Safety
The maximum rated input voltage and maximum rated voltage versus ground
values for input modules and connection cables are listed in the table below. In
order to prevent the risk of electric shock and damage to the equipment, make
sure that these voltages are not exceeded.
The maximum rated voltage versus ground does not change also when an atten-
uator or similar is used at the input. Take the connection method into consider-
ation and make sure that the rating is not exceeded.
Input module
Maximum rated
input voltage
Maximum rated voltage
versus ground
8966 Analog Unit 400 VDC 300 VAC/DC
8967 Temp Unit - 300 VAC/DC
8968 High Resolution Unit 400 VDC 300 VAC/DC
8969 Strain Unit - 33 V rms / 70 VDC
8970 Freq Unit 400 VDC 300 VAC/DC
8971 Current Unit - Not insulated.
8972 DC/RMS Unit 400 VDC 300 VAC/DC
8973 Logic Unit - Not insulated.
Connection cord
Maximum rated
input voltage
Maximum rated voltage
versus ground
9790 Connection Cord 300 VAC/DC 300 VAC/DC
9197 Connection Cord 500 VAC/DC 600 VAC/DC
L9198 Connection Cord 300 VAC/DC 600 VAC/DC
8847 Memory
HiCorder
Input module
GND
Maximum rated
input voltage
H
L
Maximum rated volt-
age versus ground
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