Atec Fluke-2638A - Manual (Page 8)

8 Fluke Corporation Fluke 2638A Hydra Series III Data Acquisition System/Digital Multimeter
AC voltage
AC voltage specifications are for ac sine wave signals >5 % of range. For inputs from 1 % to 5 % of range and <50 kHz,
add an additional error of 0.1 % of range.
Maximum input Front panel: 300 V rms or 425 V peak; Rear inputs: 150 V CAT II; 250 V peak
Measurement method AC-coupled true-rms. Measures the ac component of input with up to 300 V dc bias on any range
AC filter
bandwidth
Slow 20 Hz
Fast 200 Hz
Maximum crest factor 5:1 at full scale
AC voltage input characteristics
Range Resolution Measurement rate/resolution Input impedance
Fast
4.5 digits
Medium
5.5 digits
Slow
6.5 digits
100 mV 100.0000 mV 10 µV 1 µV 0.1 µV 1 MΩ ±2 % shunted
by 150 pF
1 V 1.000000 V 100 µV 10 µV 1 µV
10 V 10.00000 V 1 mV 100 µV 10 µV
100 V 100.0000 V 10 mV 1 mV 100 µV
300 V 300.000 V 100 mV 10 mV 1 mV
AC voltage accuracy
Accuracy is given as ± (% measurement + % of range).
Range Frequency 24 hour (23 ±1 °C) 90 days (23 ±5 °C) 1 year (23 ±5 °C) T.C./°C outside
18 °C to 28 °C
100 mV 20 Hz to 20 kHz 0.1 + 0.05 0.11 + 0.05 0.11 + 0.05 0.01 + 0.005
20 Hz to 50 kHz 0.2 + 0.05 0.22 + 0.05 0.22 + 0.05 0.01 + 0.005
50 Hz to 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.05 + 0.01
1 V 20 Hz to 20 kHz 0.1 + 0.05 0.11 + 0.05 0.11 + 0.05 0.01 + 0.005
20 Hz to 50 kHz 0.2 + 0.05 0.22 + 0.05 0.22 + 0.05 0.01 + 0.005
50 Hz to 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.05 + 0.01
10 V 20 Hz to 20k Hz 0.1 + 0.05 0.11 + 0.05 0.11 + 0.05 0.01 + 0.005
20 Hz to 50 kHz 0.2 + 0.05 0.22 + 0.05 0.22 + 0.05 0.01 + 0.005
50 Hz to 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.05 + 0.01
100 V 20 Hz to 20 kHz 0.1 + 0.05 0.11 + 0.05 0.11 + 0.05 0.01 + 0.005
20 Hz to 50 kHz 0.2 + 0.05 0.22 + 0.05 0.22 + 0.05 0.01 + 0.005
50 Hz to 100 kHz 0.55 + 0.08 0.6 + 0.08 0.6 + 0.08 0.05 + 0.01
300 V 20 Hz to 20 kHz 0.1 + 0.05 0.11 + 0.05 0.11 + 0.05 0.01 + 0.005
20 Hz to 50 kHz 0.2 + 0.05 0.22 + 0.05 0.22 + 0.05 0.01 + 0.005
50 Hz to 100 kHz 0.55 + 0.27 0.6 + 0.27 0.6 + 0.27 0.05 + 0.03
DC current
Input protection 0.15 A /600 V resettable PTC
Common mode rejection 140 db at 50 Hz or 60 Hz ±0.1 % (1 kΩ imbalance)
Normal mode rejection 60 db for NPLC of 1 or greater and power line frequency ±0.1 %
DC current input characteristics
Range Resolution Measurement rate/resolution Shunt resistance
(ohms)
Burden voltage
Fast
4.5 digits
Medium
5.5 digits
Slow
6.5 digits
100 µA 100.0000 µA 10 nA 1 nA 0.1 nA 1k Ω <1 mV
1 mA 1.000000 mA 100 nA 10 nA 1 nA 1k Ω <1 mV
10 mA 10.00000 mA 1 µA 100 nA 10 nA 10 Ω <1 mV
100 mA 100.0000 mA 10 µA 1 µA 100 nA 10 Ω <1 mV