Fluke FLK-8846A [3/12] Electrical specifications
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Fluke FLK-8846A [3/12] Electrical specifications

Fluke FLK-8846A/SU [3/12] Electrical specifications
2 Fluke Corporation 8845A and 8846A
Electrical
Input Protection............................................................1000 V all ranges
Overrange.......................................................................20 % on all ranges except 1000 V dc, 1000 V ac (8846A),
750 V ac (8845A), Diode, and 10 A ranges
Remote Interfaces
RS-232C, DTE 9-pin, 1200 to 230400 baud (RS-232C to USB cable available to connect the Meter to a PC USB port. See Accessories)
IEEE 488.2
LAN and “Ethernet 10/100 base T with DHCP (for IP_ADDRess) option”
Warranty
One year
Electrical Specifications
Accuracy specifications are valid for 6½ digit resolution mode after at least a 1-hour warm-up with Auto Zero enabled.
24-hour specifications are relative to calibration standards and assume a controlled electromagnetic environment per EN 61326-1:2000-11
DC Voltage Specifications
Maximum Input.............................................................1000 V on any range
Common Mode Rejection............................................140 dB at 50 or 60 Hz ±0.1 % (1 kΩ unbalance)
Normal Mode Rejection ..............................................60 dB for NPLC of 1 or greater with analog filter off and power line frequency ±0.1 %
100 dB for NPLC of 1 or greater with analog filter on and power line frequency ±0.1 %
Measurement Method..................................................Multi-ramp A/D
A/D Linearity.................................................................0.0002 % of measurement +0.0001 % of range
Input Bias Current........................................................<30 pA at 25 °C
Autozero Off Operation...............................................Following instrument warm-up at calibration temperature ±1 °C and less than 10
minutes, add error: 0.0002 % range additional error + 5 μV.
Analog Filter..................................................................When using the analog filter, specifications are relative to within one hour of using the
ZERO function for that range and NPLC setting.
DC Ratio..........................................................................Accuracy is +/- (Input accuracy + Reference accuracy), where Input accuracy = DC
Voltage accuracy for the HI to LO Input (in ppm of the Input voltage), and Reference
accuracy = DC Voltage accuracy for the HI to LO (Sense) Reference (in ppm of the
Reference voltage).
Settling Considerations..............................................Measurement settling times are affected by source impedance, cable dielectric
characteristics, and input signal changes.
Input Characteristics
Resolution
Range Resolution
4½ Digits 5½ Digits 6½ Digits
Input Impedance
100 mV 100.0000 mV 10 µV 1 µV 100 nV 10 MΩ or >10 GΩ
[1]
1 V 1.000000 V 100 µV 10 µV 1 µV 10 MΩ or >10 GΩ
[1]
10 V 10.00000 V 1 mV 100 µV 10 µV 10 MΩ or >10 GΩ
[1]
100 V 100.0000 V 10 mV 1 mV 100 µV 10 MΩ ±1%
1000 V 1,000.000 V 100 mV 10 mV 1 mV 10 MΩ ±1%
[1] Inputs beyond ±14 V are clamped through 200 kΩ typical. 10 MΩ is default input impedance.
8846A Accuracy
Accuracy is given as ± (% measurement + % of range)
Range
24 Hour
(23 ±1 °C)
90 Days
(23 ±5 °C)
1 Year
(23 ±5 °C)
Temperature
Coefficient/ °C
Outside 18 to 28 °C
100 mV 0.0025 + 0.003 0.0025 + 0.0035 0.0037 + 0.0035 0.0005 + 0.0005
1 V 0.0018 + 0.0006 0.0018 + 0.0007 0.0025 + 0.0007 0.0005 + 0.0001
10 V 0.0013 + 0.0004 0.0018 + 0.0005 0.0024 + 0.0005 0.0005 + 0.0001
100 V 0.0018 + 0.0006 0.0027 + 0.0006 0.0038 + 0.0006 0.0005 + 0.0001
1000 V 0.0018 + 0.0006 0.0031 + 0.001 0.0041 + 0.001 0.0005 + 0.0001

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