FLUKE 1674 FC Multifunction Installation Tester

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

Datasheet