8 Service and Maintenance
214 E364xA User’s and Service Guide
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, 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
O
± 5 mA.
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:
[1] For the E3640A model. For other models, refer to Table 8-5.
CURR 3.0
(E3640A model)
E3640A E3641A E3642A E3643A E3644A E3645A
3 A ± 16 mA 0.8 A ± 11.6 mA 5 A ± 20 mA 1.4 A ± 12.8 mA 8 A ± 26 mA 2.2 A ± 14.4 mA
E3640A E3641A E3642A E3643A E3644A E3645A
I
O
± 9.5 mA I
O
± 6.2 mA I
O
± 12.5 mA I
O
± 7.1 mA I
O
± 17 mA I
O
± 8.3 mA
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