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1586A
Users Manual
1-20
DC Voltage
Maximum Input ...................................................... 50 V on any range
Common Mode Rejection ..................................... 140 dB at 50 Hz or 60 Hz (1 kΩ unbalance in LOW lead) ±50 V peak
maximum
Normal Mode Rejection ........................................ 55 dB for power line frequency ±0.1 %, ±120 % of range peak
maximum
A/D Linearity .......................................................... 2 ppm of measurement + 1 ppm of range
Input Bias Current ................................................. 30 pA at 25 °C
DC Voltage Accuracy
Accuracy is given as ± (% measurement + % of range). Basic accuracy specification is for Channel 1, medium or slow
sample rate. For channels x01 through x20 or when using Fast sample rate, add the numbers given in the table to the
accuracy specification. If the environment temperature is outside the specified range, multiply the temperature coefficient
numbers by the temperature deviation and add to the accuracy specification.
Range
Accuracy
Channel 1
Ch. x01 – x20
Fast
Sample Rate
T.C./ °C Outside
18 °C to 28 °C
±100 mV
0.0037 % + 0.0035 %
add 2 µV
add 0.0008 % of range
0.0005 % + 0.0005 %
±1 V
0.0025 % + 0.0007 %
add 2 µV
add 0.0008 % of range
0.0005 % + 0.0001 %
±10 V 0.0024 % + 0.0005 % − add 0.0008 % of range 0.0005 % + 0.0001 %
±50 V 0.0038 % + 0.0012 % − add 0.0008 % of range 0.0005 % + 0.0001 %
DC Voltage Input Characteristics
Range
Resolution
Input Impedance
Slow / Medium Fast
±100 mV
0.1 µV 1 µV
10 GΩ
[1]
±1 V
1 µV 10 µV
10 GΩ
[1]
±10 V
10 µV 100 µV
10 GΩ
[1]
±50 V
100 µV
1 mV
10 MΩ ±1 %
[1] - Input beyond ±12 V is clamped. The clamp current is up to 3 mA.
DC Current
Input Protection .................................................... 0.15 A resettable PTC
DC Current Accuracy
Accuracy is given as ± (% measurement + % of range). Basic accuracy specification is for medium or slow sample rate.
When using a fast sample rate, add the number given in the table to the accuracy specification. If the environment
temperature is outside the specified range, multiply the temperature coefficient numbers by the temperature deviation and
add to the accuracy specification.
Range Accuracy Fast Sample Rate
T.C./ °C Outside
18 °C to 28 °C
±100 µA
0.015 % + 0.0035 %
add 0.0008 % of range
0.002 % + 0.001 %
±1 mA 0.015 % + 0.0011 % add 0.0008 % of range 0.002 % + 0.001 %
±10 mA 0.015 % + 0.0035 % add 0.0008 % of range 0.002 % + 0.001 %
±100 mA 0.015 % + 0.0035 % add 0.0008 % of range 0.002 % + 0.001 %
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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