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Size: 26.25 cm x 14.19 cm x 11.93 cm (10.3 in x 5.6 in x 4.7 in)
Weight (including batteries): 1.6 kg (3.5 lb)
Battery type and capacity: BP290, Li-ion, 10.8 V, 2500 mAh, 27 Wh
Ingress Protection: IEC 60529: IP40
Safety: Complies with IEC/EN 61010-1, IEC 61010-2-030, IEC 61010-2-034
Safety rating: CAT III 600 V, CAT IV 300 V
Performance: IEC 61557-1 to IEC/EN 61557-8 and IEC 61557-10
Voltage measurement AC, DC and frequency
Range: 600 V
Resolution: 0.1 V
Input impedance: 320 kΩ
Overload protection: 660 V
Frequency: 45–66 Hz
Frequency resolution: 0.1 Hz
Input impedance: 320 kΩ
Continuity testing (RLO)
Range (Auto ranging): 20 Ω / 200 Ω / 2000 Ω
Resolution: 0.01 Ω / 0.1 Ω / 1 Ω
Open circuit voltage: > 4 V
Insulation resistance measurement (RISO)
Test voltages:
1672: 100 – 250 – 500 – 1000 V
1673 FC / 1674 FC: 50 – 100 – 250 – 500 – 1000 V
50 V
Insulation resistance range: 10 kΩ – 50 MΩ
Resolution: 0.01 MΩ
Test current: 1 mA at 50 kΩ
100 V
Insulation resistance range: 10 kΩ – 20 MΩ
Resolution: 0.01 MΩ
Test current: 1 mA at 100 kΩ
20 MΩ – 100 MΩ: resolution 0.1 MΩ
250 V
Insulation resistance range: 10 kΩ – 20 MΩ
Resolution: 0.01 MΩ
Test current: 1 mA at 250 kΩ
20 MΩ – 200 MΩ: resolution 0.1 MΩ
500 V
Insulation resistance range: 10 kΩ – 20 MΩ
Resolution: 0.01 MΩ
Test current: 1 mA at 500 kΩ
20 MΩ – 200 MΩ: resolution 0.1 MΩ
200 MΩ – 500 MΩ: resolution 1 MΩ
1000 V
Insulation resistance range: 100 kΩ – 200 MΩ
Resolution: 0.1 MΩ
Test current: 1 mA at 1 MΩ
200 MΩ – 1000 MΩ: resolution 1 MΩ
Insulation pretest
Requirement: Connections from the tester to L, N, and PE are required.
Surge Protection Device (SPD) – Insulation RAMP Test (IEC 61643-11)
Test voltage:
500 V – Step ramp 0 V to 500 V
Resolution: 1 V
Test current: 1 mA
Accuracy: ± (1.5 % + 3 digits)
1000 V – Step ramp 0 V to 1000 V
Resolution: 1 V
Test current: 1 mA
Accuracy: ± (1.5 % + 3 digits)
Insulation Monitoring Devices (IMD) – IEC 61557-8
Range: 1 kΩ – 10 kΩ, resolution 1 kΩ
10 kΩ – 100 kΩ, resolution 10 kΩ
100 kΩ – 3 MΩ, resolution 100 kΩ
Note: >1 MΩ only available with voltages >100 V
Loop and line impedance (ZI – No Trip and Hi Current)
Range setting:
10 Ω – resolution 0.001 Ω
Accuracy: Hi Current mΩ mode ± (2 % + 35 digits); No Trip (2 & 3 wire) ± (3 % + 6 digits)
20 Ω – resolution 0.01 Ω
Accuracy: Hi Current mode ± (2 % + 4 digits)
200 Ω – resolution 0.1 Ω
Accuracy: No Trip ± (3 %); Hi Current ± (2 %)
2000 Ω – resolution 1 Ω
Accuracy: ± 6 %
Notes:
(1) Valid for neutral resistance < 20 Ω and phase angle ≤ 30°, test leads must be zeroed before testing.
(2) 10 Ω range available on Fluke Connect™ 1674 FC model only.
(3) Valid for mains voltage > 200 V.
Prospective Earth Fault Current (PEFC) / Prospective Short Circuit Current (PSC)
Range: 0 kA – 50 kA
Resolution:
IK < 1000 A → 1 A
IK ≥ 1000 A → 0.1 kA
Computation: PEFC/PSC determined by dividing measured mains voltage by measured loop (L-PE) or line (L-N) resistance.
Voltage drop (by line impedance test)
Range: 0.0 % – 99.9 %
Resolution: 0.1 %
Accuracy: Consider accuracy of line impedance measurement
Note: Voltage drop reading calculated from line impedance measurement and entered current rating.
RCD tests – RCD types tested
RCD Type – 1672 / 1673 FC / 1674 FC
AC G: • / • / •
AC S: • / • / •
A, F G: • / • / •
A, F S: • / • / •
B, B+ G: – / • / •
B, B+ S: – / • / •
RDC-DD, RCD A/EV, RCD B/Mi: – / • / •
GFCI: • / • / •
RCD test inhibited for V > 265 V AC.
RCD tests permitted only if selected current × earth resistance < 50 V.
Legend:
AC – responds to AC
G – general, no delay
S – time delay
A – responds to AC and pulsed signals
F – responds to AC, pulsed, and high frequency
B, B+ – responds to AC, pulsed, high frequency, and smooth DC
RDC-DD – responds to residual currents of 6 mA DC
RCD tripping time test (ΔT)
Test function – RCD rated current
x½, x1: available for 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA, Var
x5: available for 10 mA, 30 mA, 100 mA
Ramp: available for 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA, Var
Auto: available for 10 mA, 30 mA, 100 mA
Mains voltage: 50 V – 265 V AC, 45–66 Hz
Type B RCDs require mains voltage 195–265 V.
Type AC RCDs only.
Type A RCDs limited to 700 mA, not available for Type B RCDs.
RCD tripping current (IΔN) measurement / Ramp Test
Current range: 30 % – 110 % of rated RCD current
Step size: 10 % of IΔN
Dwell time: 300 ms/step (Type G), 500 ms/step (Type S)
Accuracy: ± 5 %
Specified trip current ranges (IEC 61008-1):
30–150 % for Type A (IΔN > 10 mA)
30–210 % for Type A (IΔN = 10 mA)
20–210 % for Type B
50–100 % for Type AC
Earth resistance test (RE) – 1673 FC and 1674 FC only
Range: 200 Ω / 2000 Ω
Resolution: 0.1 Ω / 1 Ω
Frequency: 128 Hz
Output voltage: 25 V
Phase sequence indication
Range: 185 V – 600 V
Display: “1-2-3” or “3-2-1” for incorrect phase
