Filter
Top Products
58 Local Operation
"RES 50.000" - main level is 50 ohms
"R:TLV 40.000" - transient level is 40 ohms
"C:SLW.50000" - slew rate is 0.5 A/
µ
s (1 to 1 k ohms range uses the CC slew rate setting).
If you now select the low range (R:RNG 1.0000), the settings will automatically be changed to fit into the new range as
follows:
"RES 1.0000" - main level is 1 ohm (maximum value low range)
"R:TLV 1.0000" - transient level is 1 ohm (maximum value low range)
"V:SLW 5.0000" - slew rate is 5 V/
µ
s (low range uses the CV slew rate setting).
If you now select the high range (R:RNG 10000), the settings will be automatically adjusted to fit into the new range as
follows:
"RES 10.000"-main level is 10 ohms (minimum value high range)
"R:TLV 10.000"-transient level is 10 ohms (minimum value high range)
"C:SLW .50000"-slew rate is 0.5 A/
µ
s (high resistance range uses the CC slew rate setting).
Examples
The following examples illustrate how to set CR values. Before you do these examples, press
to
set the CR values to their factory default states (see Table 4-6).
1. Set Range
a. Press
to select the CR function. Now press to determine which range is presently selected.
Note that the display indicates "R:RNG" and the maximum middle range resistance value. This means the
middle range is presently selected.
b. Select the low range by pressing
c. Press and note that the display indicates "R:RNG" and the maximum low range value. This means
the low range is presently selected.
2. Set Main Level
a. Press
and note that the display indicates "RES" and the maximum low range resistance value.
b. Set the main resistance level to 0.4 ohms by pressing
c. Press again and check that the display indicates "RES 0.4000" .
You can use
ENTRY keys to increment ( ) and decrement ( ) the RES setting. You can see the RES setting
being incremented or decremented one step at a time each time you press the applicable Input key. The values are entered
automatically (you don’t press the Enter key). Remember if the CR mode is active, the incremented or decremented values
will immediately change the actual input.
3. Set Slew Rate
a. First press the
(blue shift key) and note that the Shift annunciator goes on. Now press (shifted
Tran Level key) to determine the present slew setting. Note that the display indicates "V:SLW" and the
maximum voltage slew rate. The Electronic Load automatically selects the voltage slew rate when the low
resistance range is selected.
b. Set the slew rate to 0.25 V/µs by pressing
c. Press and again and check that the display indicates "V:SLW 0.2500" (or the closest slew
rate step to this value for the particular model being programmed).