Dc Current Accuracy; Dc Current Additional Errors; Ac Current; Ac Current Input Characteristics - Fluke 2638A User Manual

DC Current Accuracy

Accuracy is given as ± (% measurement + % of range).
Range
100 µA
1 mA
10 mA
100 mA

DC Current Additional Errors

Digits
6 ½
6 ½
6 ½
5 ½
4 ½
4 ½

AC Current

Input Protection .................................................... 0.15 A / 600 V resettable PTC
Measurement Method ........................................... AC-coupled true-rms, dc-coupled to the shunt (no blocking capacitor).
AC Filter Bandwidth:
Slow .................................................................... 20 Hz
Fast ..................................................................... 200 Hz
Maximum Crest Factor ......................................... 5:1 at full scale
Additional Crest Factor Errors ............................ Crest factor 1-2, 0.05 % of full scale

AC Current Input Characteristics

Range
100 µA
1 mA
10 mA
100 mA
info@Fluke-Direct.com
24 Hour
(23 ±1 °C)
0.005 % + 0.003 % 0.015 % + 0.0035 %
0.005 % + 0.001 % 0.015 % + 0.0011 %
0.005 % + 0.003 % 0.015 % + 0.0035 %
0.005 % + 0.001 % 0.015 % + 0.0035 %
Additional NPLC Noise Error
NPLC
200
100
10 (Slow)
1 (Medium)
0.2 (Fast) 0.002 % of range + 1.2 µA
0.02 0.014 % of range + 1.7 µA
Resolution
4 ½
Digits
100.0000 µA 10 nA
1.000000 mA 100 nA
10.00000 mA 1 µA
100.0000 mA 10 µA
Fluke-Direct
Product Overview and Specifications
90 Days 1 Year
(23 ±5 °C) (23 ±5 °C)
0.015 % + 0.0035 %
0.015 % + 0.0011 %
0.015 % + 0.0035 %
0.015 % + 0.0035 %
for 10 mA, 100 mA
-
-
-
0.0008 % of range
Crest factor 2-3, 0.2 % of full scale
Crest factor 3-4, 0.4 % of full scale
Crest factor 4-5, 0.5 % of full scale
Resolution
5 ½ 6 ½
Digits Digits
1 nA 0.1 nA
10 nA 1 nA
100 nA 10 nA
1 µA 100 nA
Measurement Specifications
T.C./ °C
Outside
18 °C to 28 °C
0.002 % + 0.001 %
0.002 % + 0.001 %
0.002 % + 0.001 %
0.002 % + 0.001 %
Additional NPLC Noise
Error for 100 µA, 1 mA
-
-
-
0.0008 % of range
0.002 % of range + 12 nA
0.014 % of range + 17 nA
Reference Burden
Resistance Voltage
<10 mV (RMS)
1 kΩ
<10 mV (RMS)
1 kΩ
10 Ω <20 mV (RMS)
10 Ω <50 mV (RMS)
.com
1.888.475.5235
1
1-17