Pulse Current Measurements 3-9
the 100mA range, trigger hysteresis is approximately 0.2mA. If a pulse does not
exceed the appropriate hysteresis level, trigger detection will not occur.
The three trigger level ranges for the 5A current range on the battery channel (#1) are
displ
ayed as follows:
5A Range: PCUR
TRIG LEVEL #1
A (5.0) 0.000A
1A Range: PCUR
TRIG LEVEL #1
A (1.0) 0.000A
100mA Range: PCUR
TRIG LEVEL #1
mA (100) 0.0000A
To change the range for the trigger level setting
, place the blinking cursor on the “A”
at the far right end of line two of the display, and press the
▲ or ▼ key. After keying
in the trigger level (in amps), press ENTER to update the displayed range for that trig-
ger level setting only.
Charger Channel (#2) —
Set the trigger level from 0 to 5A in 5mA steps. However,
there is approximately 10mA of trigger hysteresis built into the hardware. Therefore,
if a pulse does not exceed this level, trigger detection will not occur.
Pulse current display mode
Pulse current measurements are displayed with the pulse current display mode selected. This
display mode is selected as follows:
NOTE T
o display measured readings if the instrument is in the settings mode, press the SET
key until the blinking stops (the measured readings can then be displayed). To deter-
mine if the instrument is in the settings mode, check for a blinking cursor in a digit of
the volta
ge or current field (if present, the instrument is in the setting mode).
1. Press the DISPLAY key to access the display menu.
2. If the desired active channel is not selected, use the
▲
and
▲
keys to toggle the active
channel. The top line of the display will show which channel
is active as either DISPLAY
TYPE #1 or DISPLAY TYPE #2.
3. Press the
▲ or ▼ key until “PULSE CURRENT” is displayed and press ENTER.
4. Use the
▲ or ▼ key to display the desired pulse measurement; PULSE HI, PULSE LO,
or PULSE AVG.
NOTE F
or details on display modes, see “Display modes” in Section 1.
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