30 | Keysight | 34980A Multifunction Switch/Measure Unit - Data Sheet
Measurement characteristics with optional
internal DMM (continued)
System speciꢁcations
Scanning inputs
Analog:
34921A, 34922A, 34923A, 34924A, and
34925A multiplexer channels
DC operating characteristics [4]
Function
Digits [5] Readings/s
Additional RMS
noise error
Digital:
34950A/52A digital in and totalize
Scan triggering
Source
DCV [7], DCI, and
Resistance (≤10 kΩ) 6½
6½
0.6 (0.5)
6 (5)
60 (50)
300
600
3000
0% of range
0% of range
0.001% of range
0.001% of range [6]
0.01% of range [6]
0.1% of range [6]
Interval, external, button press, software,
or on monitor channel alarm
5½
5½
4½
4½
Scan count
1 to 50,000 or continuous
0 to 99 hours; 1ms step size
0 to 60 seconds per channel; 1 ms step size
< 2 ms. With monitor on < 200 ms
< 2 ms
Scan interval
Channel delay
External trig delay
External trig jitter
Alarms
Autozero OFF operation
Following instrument warm-up at calibration temerature ±1°C and <10
minutes, add 0.0002% range additional error +5 μV. (For 300 VDC,
instead of .0002% of range, need .00066% of range)
Analog inputs
Digital inputs
Hi, Lo, or Hi + Lo evaluated each scan
Settling considerations
34950A/52A digital in maskable pattern
match or state change
Reading settling times are affected by source impedance, low dielectric
absorption characteristics, and input signal changes.
AC operating characteristics [8]
34950A/52A frequency and totalize:
Hi limit only
Function
Digits [9] Readings/s
AC ꢀlter
Monitor channel
Alarm outputs
Alarm evaluated each reading
ACV, ACI:
6½
6½
6½
6½
7 sec/reading
Slow (3 Hz)
4 TTL compatible
Selectable TTL logic Hi or Lo on fail
1
Medium (20 Hz)
Fast (200 Hz)
Fast (200 Hz)
8 [10]
100 [11]
Latency
Memory
Type
5 ms (typical)
[4] Reading speeds for 60 Hz and (50 Hz) operation; autozero OFF
[5] 6½ digits = 22 bits; 5½2 digits = 18 bits; 4½ digits = 15 bits
[6] Add 20 μV for DCV, 4 μA for DCI, or 20 mΩ for resistance
[7) For 300 VDC, multiply the additional noise error by 3.3
Volatile
Readings
States
500,000 with timestamp, readable during scan
5 instrument states with user label
[8] Maximum reading rates for 0.01% of AC step additional error; additonal settling
Alarm queue
Up to 20 events with channel number, reading,
and timestamp
delay required when input DC level varies
[9] 6½ digits = 22 bits; 5½ digits = 18 bits; 4½ digits = 15 bits
[10] For external trigger or remote operation using default settling delay (Delay Auto)
[11] Maximum limit with default settling delays defeated
System features
Per-channel math
Min/max/average time
Individual Mx+B scaling and calculated real
Save switch states
Power fail recovery
Relay maintenance
Counts each relay closure and stores on
module User resettable
Real-time clock
Battery-backed, 20-year typical life
5秒后页面跳转
SG3525资料手册详解：SG3525参数分析、引脚说明、应用介绍
AT89C51单片机资料手册详细解析及应用示例
CP2102资料手册解读：CP2102引脚说明、关键参数分析
资料手册解读：UC3842参数和管脚说明
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
