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Local Operation 55
Setting the Mode of Operation
The present (active) mode of operation is indicated by the appropriate annunciator being on (e.g. CC). The active mode can
also be viewed on the display by pressing
.
For example, "MODE CURR" indicates that the CC mode is active. You can change the mode to CR or CV by pressing the
applicable key. To change the mode of operation from CC to CR, first press
which changes the display to "MODE
RES". Now, to activate the CR mode, press
. As soon as the Enter key is pressed, the CR annunciator goes on, the
resistance settings affect the input (provided that the input is turned on), and the display returns to the metering mode.
Note The Range, Tran Level, and Slew (shifted Tran Level) keys are common to the CC, CR, and CV
functions. These keys become associated with a particular function when you press the applicable function
key (CURR, RES, or VOLT). If you do not select a function, they are associated with the function that is
presently active.
Setting CC Values
The CC values are programmed by pressing the applicable FUNCTION keys and setting the desired values using the
ENTRY keys. The display identifies the selected function; for example, C: SLW identifies current slew rate.
Ranges
The CC values can be programmed in either a low range or a high range. The valid CC values that can be programmed are
listed in Table 4-2 along with the applicable front panel key and display identifier. Note that all current levels are
programmed in amps and current slew rates are programmed in amps/microsecond.
Table 4-2. CC Programming Ranges
Function Key Display Range of Values
6060B 6063B
Set Range "C:RNG value"
Low A Range
≥
0 and
≤
6
≥
0 and
≤
1
High Range
> 6 and
≤
60 >1 and
≤
10
Set Main Level "CURR value"
Low Range 0.0000 to 6.0000 0.0000 to 1.0000
High Range 0.000 to 60.000 0.000 to 10.000
Set Slew Rate "C:SLW value" (see Note 1)
Low Range
(shifted)
0.00010 to 0.5000 (A/
µ
s) 0.000017 to 0.083 (A/
µ
s)
High Range
0.0010 to 5.000 (A/
µ
s) 0.00017 to 0.83 (A/
µ
s)
Set Transient Level "C:TLV value" (see Note 2)
Low Range 0.0000 to 6.0000 0.0000 to 1.0000
High Range 0.000 to 60.000 0.000 to 10-000
Notes:
1. There are 12 discrete steps within a CC slew range (low or high). The 12 slew rate steps for each range are listed in
Table 1-1. Any slew rate can be programmed (there are no upper and lower limits that would cause an error) . The
Electronic Load automatically selects one of the 12 slew rates that is closest to the programmed value. See Chapter 2
Operation Overview in this manual.
2. The transient current level is meaningful only if transient operation is turned on. The transient current level must be
set to a higher level than the main current level. See Transient Operation later in this Chapter.