Keithley 2302 User Manual

3-12 Pulse Current Measurements
TRIG NOT DETECTED message
The TRIG NOT DETECTED message is displayed when specific TLEV settings coupled
with specific TLEV ranges have been set and a trigger has not been detected. Refer to
Table 3-1 for the message preconditions.
Table 3-1
TRIG NOT DETECTED message
TLEV setting TLEV range
TRIG NOT DETECTED Message displayed?
90mA for 100mA range 1A No (not checked because TLEV setting does not
match
TLEV range)
90mA for 100mA range 5A No (not checked because TLEV setting does not
match
TLEV range)
0.75A for 1A range 1A May appear
1
0.1A for 5A range 5A May appear
1
3.0A for 5A range 5A May appear
1
1.1A for 5A range 100mA No (not checked because TLEV setting of 5A
does not match TLEV range of 100mA)
1.1A for 5A range 1A No (not checked because TLEV setting of 5A
does n
ot match TLEV range of 1A)
1
May appear depends on OUTPUT:
• If OFF, the message will appear.
• If ON, display of the message will depend
on the trigger level setting. If trigger level setting > expected low
measurement and also trigger level setting < the expected high measurement, the message will not appear.
For example, if the expected pulse high is 2.2A and the expected pulse low is 0.5A, the output is on, and the
TL
EV range is 5A, notice the following results:
Setting 0.3A TRIG NOT DETECTED is displayed (setting
too low).
Setting 3.0A TRIG NOT DETECTED is displayed (setting
too high).
Setting 1.1A The message will not
display (setting correct).
See steps 1–3 of the “Pulse current measurement procedure” on page 3-10 for information on
setting the trigger level range. For the charger channel #2, the trigger level range setting is not
use
r selectable.
NOTE Setting the trig
ger level and/or the trigger range may cause “PULSE CURR TRIG
NOT DETECTED” to appear.
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Keithley 2302 Specifications

General

Brand	Keithley
Model	2302
Category	Power Supply
Language	English