HP WaterSkis E1312A, WaterSkis E1412A manual Default Trigger Delays

Default Delays If you do not specify a trigger delay, the multimeter automatically determines a delay time (default delay) based on the present measurement function, range, resolution, integration time and AC filter bandwidth setting. The delay time is actually the settling time required before measurements to ensure measurement accuracy. The default delay time is automatically updated whenever you change the function or range. Once you specify a delay time value, however, the value does not change until you specify another value, reset the multimeter or do a CONF or MEAS command. The table below shows the default trigger delay times for all functions. This delay will occur before each measurement (see the trigger system diagram in Figure 2-1 on page 45).

NOTE: You can specify a shorter delay time than the default values shown.

However, the shorter settling time may not produce accurate measurements.

Table 2-7. Default Trigger Delays

Default Trigger Delays for DC Voltage and DC Current (all ranges):

Integration Time		Trigger Delay
NPLC ³1		1.5ms
NPLC <1		1.0ms
Default Trigger Delays for 2-Wire and 4-Wire Resistance:
Range	Trigger Delay	Trigger Delay
	(For NPLC ³1)	(For NPLC <1)
100W	1.5ms	1.0ms
1kW	1.5ms	1.0ms
10kW	1.5ms	1.0ms
100kW	1.5ms	1.0ms
1MW	1.5ms	10ms
10MW	100ms	100ms
100MW	100ms	100ms

Default Trigger Delays for AC Voltage and AC Current (all ranges):

AC Filter	Trigger Delay
3Hz - 300kHz filter	7.0sec
20Hz - 300kHz filter	1.0sec
200Hz - 300kHz filter	600ms

Default Trigger Delay for Frequency and Period:

1.0s

50 HP E1312A/E1412A Multimeter Application Information Chapter 2