3.8 Using a Current Sensor
103
1
Verify that the instrument’s power cord as well as the power cord for the AC adapter
that came with the 9555-10 are unplugged from their outlets.
2
Verify that the instrument and 9555-10 have been turned off.
3
Connect the AC adapter that came with the 9555-10 and then connect the power cord
to the AC adapter.
4
Connect the TYPE.2 current sensor you will use to the 9555-10’s sensor connector.
5
Connect the 9555-10’s output terminal and one of the instrument’s external current
sensor input terminals (CURRENT SENSOR) with the L9217 Connection Cord.
6
Connect the power cord to the instrument and connect the instrument and 9555-10’s
power cords to outlets.
7
Turn on the instrument and verify that the display shows the Measurement screen.
8
Turn on the 9555-10 and verify that the current monitor lights up.
Pass the AC adapter cord through
the locking clamp to keep it from
being pulled out.
Rear
Front
Output terminal
SENSOR connector
TYPE.2 current sensor
Front
Rear
1
2
Power switch
Power monitor
• If using the 9277, 9278, or 9279 Universal Clamp on CT, press the 9555-10’s DEMAG switch to perform
degaussing operation.
• When using the CT6841/CT6843 AC/DC Current Probe, perform zero-adjustment for the current sensor.
1. Set the instrument to the 1 A range noted on the panel.
2. Set the display parameter to A and the rectifier to DC.
3. Turn the zero-adjustment knob (0ADJ) on the CT6841/CT6843 so that the display reads 0 A.
• When using the CT6841/CT6843, the following is added to the current sensor accuracy (by performing the
above zero-adjustment procedure):
CT6841: ±20 mA
CT6843: ±200 mA
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