Specifications

Function Resolution
7
Reading/s
Operating Characteristics
4
Single Channel Measurement Rates
5
153
Multifunction Switch/Measure
Mainframe and Modules 34980A (Continued)
More detailed specifications at www.agilent.com/find/34980A
Data Acquisition & Switching
1
Reading speeds for 60 Hz: autozero OFF
2
For fixed function and range, readings to memory, scaling and alrams off, autozero OFF
Measurement Characteristics
DC Voltage Measurement Method Continuously integrating multi-slope III
A-D Converter
A-D Linearity 0.0002% of reading + 0.0001% of range on 10 v range
Input Resistance
100 mV, 1 V, 10 V ranges Selectable 10 MΩ or >10.000 MΩ
100 V, 300 V ranges 10 MΩ ±1%
Input Bias Current <50 pA at 25°C
Input Protection 300 V all ranges
True RMS AC Voltage Measurement Method AC coupled True RMS – measures the AC component
of the input with up to 300 Vdc of bias on any range
Crest Factor Maximum of 5:1 at full scale
Additional Crest Factor
Errors (non-sinewave) Crest Factor 1–2 0.05% of reading
Crest Factor 2–3 0.15% of reading
Crest Factor 3–4 0.30% of reading
Crest Factor 4–5 0.40% of reading
Input Impedance 1 MΩ ± 2% in parallel with 150 pF
Input Protection 300 Vrms all ranges
Resistance Measurement Method Selectable 4-wire or 2-wire Ohms
Current source referenced to LO input
Offset Compensation Selectable on 100 Ω, 1 kΩ, 10 kΩ ranges
Maximum Lead Resistance 10% of range per lead for 100 Ω and 1 kΩ ranges
1 kΩ on all other ranges
Input Protection 300 V on all ranges
1
For 1 KΩ unbalance in LO lead
2
For power line frequency 0.08%
3
For power line frequency ±1% use 75 dB or ±2.5% use 60 dB
4
Reading speeds for 60 Hz and (50 Hz) operation
5
For fixed function and range, readings to memory, scaling and alarms off, autozero off
6
Maximum limit with default settling delays defeated
7
Speeds are for 4
1
/
2
digits, delay Ø, display off, autozero off
8
Isolation voltage (ch-ch, ch-earth) 300 Vdc, AC rms
9
6
1
/
2
digits = 22 bits, 5
1
/
2
digits = 18 bits, 4
1
/
2
digits = 15 bits
10
Assumes relative time format (time since start of scan)
DCV 4
1
/
2
digits (0.02 plc) 3000
5
1
/
2
digits (1 plc) 59
8
1
/
2
digits (10 plc) 6
2-wire Resistance 4
1
/
2
digits (0.02 plc) 2000
5
1
/
2
digits (1 plc) 58
8
1
/
2
digits (10 plc) 6
Thermocouple (0.02 plc) 2000
0.1°C (1 plc) 59
RTD, Thermistor 1°C (0.02 plc) 1900
0.1°C (1 plc) 58
0.01°C (10 plc) 6
ACV 6
1
/
2
Fast (200 Hz) 350
6
1
/
2
Med (20 Hz) 350
6
1
/
2
Slow (3 Hz) 300
Frequency, Period 4
1
/
2
digits (10 ms) 70
5
1
/
2
digits (100 ms) 9
6
1
/
2
digits (1 s gate) 1