Measurement; Connecting The Input Terminal - Omega COMPACT CAL CA100 Owner's Manual

Measurement

Connecting the Input Terminal

Connection Precautions
Connecting
1
2
For measuring DC voltage or resistance
mA
FUSE
250V F 125mA
30
• To prevent electrical shock, a protective grounding connection
must be made before connecting the measurement lead.
• Always turn off the power supply to the object being measured
before connecting it to the instrument. Never connect or
disconnect the measurement lead wires from the object while
power is being supplied to it; otherwise, a serious accident may
result.
• Make sure that you do not connect a current circuit to the voltage
input terminal or vice versa. An incorrect connection may cause
damage not only to the circuit or equipment under test and to
this instrument, but may also injure the operator.
• Be sure to use the attached measuring lead.
• The maximum allowable potential difference is 42 Vpeak and
Cat II for every I/O and ground terminal. However, the maximum
allowable potential difference between the negative 24 V OUT
terminal and the ground is 18 Vpeak. Never apply a voltage
exceeding this tolerance, or else the measured target circuit or
equipment may be damaged and the operator injured.
• Do not apply a voltage exceeding the permitted maximum input
voltage, or else the instrument may be damaged.
Permitted maximum input voltage: 42 V DC
• Do not apply a current exceeding the permitted maximum input
current, or the built-in current input circuit's protective fuse may
burn out. If it does, replace the fuse with a new one. For
replacing fuses, refer to page 50.
Permitted maximum input current: 120 mA DC
Insert the plug of the measurement lead to the input terminal of the instrument.
Pinch the output terminals on the target device with the clips on the other side of the
lead.
MEASURE
Hi
42V MAX
Lo
120mA MAX
WARNING
CAUTION
Measured
object
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