3 Features and Functions
130 Keysight 34980A Mainframe User’s Guide
Automatic Trigger Delays
If you do not specify a trigger delay, the instrument selects a delay for you. The
delay is determined by the function, range, integration time, and ac filter setting
as shown below.
DC Voltage, Thermocouple, DC Current (for all ranges):
Resistance, RTD, Thermistor (2- and 4-wire):
AC Voltage, AC Current (for all ranges):
Frequency, Period:
Digital Input, Totalize:
Integration Time Trigger Delay
PLC > 1
PLC ≤ 1
2.0 ms
1.0 ms
Range Trigger Delay (for PLC > 1) Trigger Delay (for PLC ≤ 1)
100Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
100 MΩ
2.0 ms
2.0 ms
2.0 ms
25 ms
30 ms
200 ms
200 ms
1.0 ms
1.0 ms
1.0 ms
20 ms
25 ms
200 ms
200 ms
AC Filter Trigger Delay
Slow (3 Hz)
Medium (20 Hz)
Fast (200 Hz)
7.0 seconds
1.0 second
120 ms
AC Filter Trigger Delay
Slow (3 Hz)
Medium (20 Hz)
Fast (200 Hz)
600 ms
300 ms
100 ms
Trigger Del ay
0 seconds
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