HP 34970A manual Integration Time Channel Delay, Range Channel Delay, AC Filter Channel Delay

Chapter 4 Features and Functions

Scanning

U

If you do not specify a channel delay, the instrument selects a delay for you. The delay is determined by function, range, integration time, and ac filter setting as shown below.

DC Voltage, Thermocouple, DC Current (for all ranges):

Integration Time	Channel Delay
PLC > 1	2.0 ms
PLC ≤ 1	1.0 ms

Resistance, RTD, Thermistor (2- and 4-wire):

Range	Channel Delay
	(For PLC > 1)
100Ω	2.0 ms
1 kΩ	2.0 ms
10 kΩ	2.0 ms
100 kΩ	25 ms
1 MΩ	30 ms
10 MΩ	200 ms
100 MΩ	200 ms

Range	Channel Delay
	(For PLC ≤ 1)
100Ω	1.0 ms
1 kΩ	1.0 ms
10 kΩ	1.0 ms
100 kΩ	20 ms
1 MΩ	25 ms
10 MΩ	200 ms
100 MΩ	200 ms

4

AC Voltage, AC Current (for all ranges):

AC Filter	Channel Delay
Slow (3 Hz)	7.0 sec
Medium (20 Hz)	1.0 sec
Fast (200 Hz)	120 ms

Frequency, Period:

AC Filter	Channel Delay
Slow (3 Hz)	0.6 sec
Medium (20 Hz)	0.3 sec
Fast (200 Hz)	0.1 sec

Digital Input, Totalize:

Channel Delay

0 sec

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