Atec Fluke-1586A - Manual (Page 10)

10 Fluke Calibration 1586A Super-DAQ Precision Temperature Scanner
Thermocouple measurement characteristics
Range Temperature Display Resolution
Slow / Medium Sample Rate Fast Sample Rate
−270 °C to 2315 °C 0.01 °C 0.1 °C
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 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 temper-
ature is outside the specified range, multiply the temperature coefficient numbers by the temperature deviation and add to
the accuracy specification.
DC current
Input protection 0.15 A resettable PTC