Datasheet

13
Performance versus measurement speed
For DC voltage, DC current, and resistance
1
34460A 34461A
Integration time Digits Readings/s Digits Readings/s Additional noise error
100 PLC/1.67 s (2 s) 6½ 0.6 (0.5) 6½ 0.6 (0.5) 0% of range
10 PLC/167 ms (200 ms) 6½ 6 (5) 6½ 6 (5) 0% of range
1 PLC/16.7 ms (20 ms) 5½ 60 (50) 5½ 60 (50) 0.001% of range
0.2 PLC/3 ms (3 ms) 5½ 100 5½ 300 0.001% of range
2
0.02 PLC/400 s (400 s) 3½ 300 4½ 1000 0.01% of range
2
AC voltage, AC current
3, 4
Digits ACV ACI AC filter
6½ .4/s .6/s Slow
6½ 1.6/s 4/s Medium
6½ 40/s 40/s Fast
6½ 50/s
5
50/s
5
Fast
Frequency, period
Aperture Digits Readings
1 Second 7 1
0.1 Second 6 10
0.01 Second 5 80
System Speeds (average)
DC voltage, DC current, resistance
1, 2
34460A 34461A
Autorange time
3
<30 ms <30 ms
Maximum internal trigger rate 300/s 1000/s
Maximum external trigger rate 300/s 1000/s
ASCII readings to bus 300/s 1000/s
Single reading transaction rate
4
50/s 150/s
AC voltage, AC current
5
Autorange time
3
10/s 10/s
Maximum internal trigger rate 50/s 50/s
Maximum external trigger rate 50/s 50/s
ASCII readings to bus 50/s 50/s
Single reading transaction rate
4
50/s 50/s
5
Frequency, period
6
Autorange time
3
10/s 10/s
Maximum internal trigger rate 80/s 80/s
Maximum external trigger rate 80/s 80/s
ASCII readings to bus 80/s 80/s
Single reading transaction rate
4
50/s 50/s
Operating Characteristics 34460A / 34461A
1. Reading speeds for 60 Hz (and 50 Hz) operation, autozero off, fixed range.
2. Add 20 V for DCV and 20 mΩ for resistance.
Add 0.2 A for DC current + 10x the above range error for the 10 mA range.
3. Maximum reading rates for 0.01% of AC step additional error.
Additional settling delay required when input DC level varies.
4. For external trigger or remote operation using default settling delay (Delay Auto).
5. Maximum useful limit with default settling delays defeated.
1. 0.02 NPLC, delay 0, autozero off, math off, and display off.
2. These rates apply to all I/O interfaces.
3. Time to automatically change one range and be ready for new measurement, ≤10 V, ≤10 MΩ.
4. Includes measurement and IO time (assumes connection via SOCKETS. VXI-11 connections
may be slower).
5. Fast AC filter, delay 0, math off, and display off.
6. 10 ms aperture, fast AC filter, delay 0, math off, and display off.
34460A DMM rear panel with GPIB option installed.
34461A DMM rear panel with GPIB option installed.