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TRIGger[:A] Subsystem
TVS600 & TVS600A Command Reference
2–239
TRIGger:LEVel
TRIGger:LEVel?
Sets or queries the trigger level for the TRIGger[:A] subsystem. The trigger level
is a specific voltage through which the trigger signal must pass to be recognized
as a trigger event and start acquisition. The trigger level should be within the
range of the signal in order to guarantee a trigger event. TRIGger:LEVel is
effective only when you set TRIGger:SOURce to INTernal or EXTernal. Note
that the front panel TRIGD LED lights briefly when a trigger event occurs.
Attaching a probe modifies the minimum and maximum values as it does the
setting for VOLTage:RANGe:PTPeak. Multiply the minimum and maximum
limits by the attenuation factor of the probe to determine the new maximum and
minimum values.
If you experience or expect an unstable trigger point due to noise on the trigger
signal, use the noise reject feature of the trigger circuit to reduce the affects of
noise. With the command TRIGger:FILTer:NREJect you can reduce the effects
of noise on the internal trigger sources.
TRIGger[:A]:LEVel <trigger_level>
TRIGger[:A]:LEVel?
<trigger_level>
1
Query response
<NRf>
External:
–1.0 ≤ N ≤ 1.0 (2 mV steps)
MINimum
MAXimum
<NR3>
–1.0E+0
1.0E+0
Internal DC Coupled:
absolute maximum
2
: –200.0 ≤ N ≤ 200.0
limited by ± VOLT:RANG:PTP
steps 0.002 * VOLT:RANG:PTP
MINimum
2
MAXimum
2
VOLT:RANG:OFFS ± VOLT:RANG:PTP
VOLT:RANG:OFFS – VOLT:RANG:PTP
VOLT:RANG:OFFS + VOLT:RANG:PTP
Internal AC Coupled:
absolute maximum
2
: –100.0 ≤ N ≤ 100.0
limited by ± VOLT:RANG:PTP
steps 0.002 * VOLT:RANG:PTP
MINimum
2
MAXimum
2
± VOLT:RANG:PTP
– VOLT:RANG:PTP
+ VOLT:RANG:PTP
1
The default for the parameter <trigger_level> is V for volts. You can also use the
multipliers MV for millivolts and UV for microvolts.
2
When you connect a probe, the maximum limits increase just as the vertical range
increases for the input. For example, with a 1 V vertical range, connecting a 10X
probe increases the vertical range and trigger level range to 10 V.
Syntax
Parameters