Service and Maintenance 8
E364xA User’s and Service Guide 223
4 Divide the voltage drop (DVM reading) across the current monitoring resistor
(R
M
) by its resistance to convert to amperes and record this value (I
O
). This
value should be within the limit of (0 A ± 10 mA). Also, note that the CC, Adrs,
Limit, 8V, OVP1, OVP2, OUT1, and Rmt annunciators are turned on.
5 Read back the output current over the remote interface by sending the
MEAS:CURR? command.
6 Record the value displayed on the controller. This value should be within the
limit of I
0
± 5 mA output1 or I
0
±10 mA for output2.
7 Program the output current to the full-scale rated value (3 A)
[1]
by sending the
following command:
8 Divide the voltage drop (DVM reading) across the current monitoring resistor
(R
M
) by its resistance to convert to amperes and record this value (I
O
). This
value should be within the following limits:
9 Read back the output current over the remote interface by sending the
MEAS:CURR? command.
10 Record the value displayed on the controller. This value should be within the
following limits:
11 Repeat step 1 through step 10 for the other output.
[1] For the E3646A model. For other models, refer to Table 8-5.
CURR 3.0
(E3646A model)
E3646A E3647A E3648A E3649A
3 A ± 16 mA 0.8 A ± 11.6 mA 5 A ± 20 mA 1.4 A ± 12.8 mA
E3646A E3647A E3648A E3649A
Output1
I
O
± 9.5 mA I
O
± 6.2 mA I
O
± 12.5 mA I
O
± 7.1 mA
Output 2
I
O
±14.5 mA I
O
±11.2 mA I
O
±17.5 mA I
O
±12.1 mA
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