barfield DFQ40K - Electrical Specifications and Input Power

56-101-01501_01502 Revision D Page | 2
C. Electrical Specifications
FUNCTION
RANGE
RESOLUTION
ACCURACY
Insulation Measure
40 MΩ
0.01 MΩ
± 10% ± 0.1 MΩ
400 MΩ
0.1 MΩ
± 10% ± 1 MΩ
4,000 MΩ
1 MΩ
± 10% ± 10 MΩ
20 GΩ
0.1 GΩ
± 10% ± 1 GΩ
Capacitance Measure
400 pF
0.01 pF
± 0.1% ± 0.1 pF
4,000 pF
0.1 pF
± 0.1% ± 0.01% Range
40,000 pF
1 pF
± 0.1% ± 0.01% Range
Distance To Fault (DTF)
400 pF
1 pF
± 0.1% ± 0.01% Range
Tank Simulator
10 - 4,000 pF
0.1 pF
± 0.1% ± 0.01% Range
10 - 10,000 pF
1 pF
± 0.1% ± 0.01% Range
Comp Simulator
10 - 4,000 pF
0.1 pF
± 0.1% ± 0.01% Range
Resistance Measure (2W)
40 Ω
0.01 Ω
± 1% ± 0.05 Ω
400 Ω
0.01 Ω
± 1% ± 0.05 Ω
4,000 Ω
0.1 Ω
± 1% ± 0.5 Ω
40,000 Ω
1 Ω
± 1% ± 5 Ω
Resistance Measure (4W)
40 Ω
0.001 Ω
± 1% ± 0.005 Ω
400 Ω
0.01 Ω
± 1% ± 0.05 Ω
4,000 Ω
0.1 Ω
± 1% ± 0.5 Ω
40,000 Ω
1 Ω
± 1% ± 5 Ω
Voltage Measure
40 VDC
0.001 VDC
± 1% ± 0.005 VDC
Current Measure
1200µA
1µA
± 0.1% ± 5 µA
Current Simulation
1200µA
1µA
± 0.1% ± 5 µA
Table 3 Specifications
Note: Accuracy specifications are based on performing the 12-month recertification.
Note: Specifications are subject to change without notice.
D. Display Units
Insulation Measure
Megohms (MΩ), Gigohms (GΩ)
Capacitance Measure
PicoFarad (pF)
Distance To Fault
PicoFarad (pF), Feet (ft), Meters (m)
Resistance Measure
Ohms (Ω), Kilohms (kΩ)
Voltage Measure
Voltage (VDC)
Current Measure
Micro Amps (µA)
Current Simulation
Micro Amps (µA)
Table 4 Display Units
E. Input Power
Six (6) each Alkaline C Cell Batteries, also aircraft 28 VDC as P/N 101-01502