Fluke 1670 Series Multifunction Testers

Description

Fluke 1670 Series Multifunction Installation Testers

The Fluke 1670 Series (Fluke 1672, 1673 FC and 1674 FC) are multifunction installation testers for checking low voltage installations in homes, commercial buildings and industrial sites. One tester covers insulation resistance up to 1000 V, continuity, loop and line impedance, PEFC/PSC, RCD trip time and trip current, phase sequence and voltage drop, to the requirements of IEC/HD 60364-6.

Setup is done on a colour touch screen with a rotary knob, with no deep menus. The FC models add an Auto Test sequence that runs the full set of tests at one press and compares results to your limits for an instant pass or fail. Fluke says this makes testing up to 30 % faster than manual testing.

Key Features

Insulation tests at 50 to 1000 V (100 to 1000 V on the 1672), up to 1000 MΩ
Insulation PreTest on the 1674 FC stops the test if appliances are connected
RCD tests for Type AC, A, F and GFCI; Type B/B+ on the FC models
Trip time and trip current measured in one test
Loop impedance with No Trip and Hi Current modes; mΩ resolution on the 1674 FC
Simultaneous L-N, L-PE and N-PE voltage readings through the mains cord
10 mA continuity mode for motor windings; Earth Volt touchpad warns above 50 V
2500 mAh Li-ion battery with USB-C fast charging; 1.6 kg
TruTest software reports; Fluke Connect on the 1673 FC and 1674 FC

Fluke 1672 vs 1673 FC vs 1674 FC

Fluke 1670 Series model comparison (Fluke data)
Function	1672	1673 FC	1674 FC
Insulation test voltages	100, 250, 500, 1000 V	50, 100, 250, 500, 1000 V	50, 100, 250, 500, 1000 V
Insulation PreTest (stops if appliances are connected)	–	–	Yes
Auto Test sequence	–	Yes	Yes
RCD types AC, A, F and GFCI	Yes	Yes	Yes
RCD Type B / B+ (smooth DC)	–	Yes	Yes
RDC-DD, RCD A/EV, RCD B/Mi	–	Yes	Yes
Loop and line impedance, mΩ resolution (10 Ω range)	–	–	Yes
Earth resistance RE (200 / 2000 Ω, 128 Hz)	–	Yes	Yes
IMD test (IEC 61557-8)	–	–	Yes
SPD varistor test (IEC 61643-11)	–	–	Yes
Z Max memory	–	Yes	Yes
Fluke Connect / cloud storage	–	Yes	Yes
Interface	USB-C	USB-C, Bluetooth LE	USB-C, Bluetooth LE

Fluke 1670 Series Specifications

Fluke 1670 Series common specifications (Fluke data)
Voltage	0 to 600 V AC/DC, 0.1 V resolution; 45 to 66 Hz, 0.1 Hz
Continuity (RLO)	20 / 200 / 2000 Ω, 0.01 Ω resolution, open circuit voltage >4 V; 10 mA low current mode for motor windings
Insulation resistance	10 kΩ to 1000 MΩ (1000 V range); test current 1 mA at nominal load
Loop / line impedance	20 Ω, 200 Ω, 2000 Ω ranges; Hi Current and No Trip modes
PEFC / PSC	0 to 50 kA
Voltage drop	0.0 to 99.9 %, calculated from line impedance
RCD trip time	×½, ×1, ×5, Ramp and Auto; 6 to 1000 mA plus variable current; mains 50 to 265 V AC
RCD ramp	30 % to 110 % of IΔN in 10 % steps, ±5 %
Phase sequence	185 to 600 V, shows 1-2-3 or 3-2-1
Display and controls	Colour touch screen (works with safety gloves) and rotary knob
Battery	BP290 Li-ion, 10.8 V, 2500 mAh, 27 Wh; USB-C charging
Safety rating	CAT III 600 V / CAT IV 300 V; IEC/EN 61010-1, IEC 61010-2-030, -2-034
Performance standards	IEC 61557-1 to IEC/EN 61557-8 and IEC 61557-10
Ingress protection	IP40
Size and weight	26.25 × 14.19 × 11.93 cm, 1.6 kg
Included	Mains cord with single input connector, hard case, USB-C power adapter, remote control probe, hanging strap, zero adapter, test leads and probes, alligator clips, Li-ion battery

Typical Applications

Initial verification of new installations before handover
Periodic inspection and testing of existing installations
RCD checks in distribution boards, including EV charger circuits with Type B devices (FC models)
Surge protector and IT system insulation monitor checks (1674 FC)
Motor winding continuity and insulation checks

Accessories and Related Testers

Fluke 1630-2 FC earth ground clamp for stakeless earth tests
Fluke 369 FC leakage current clamp
Fluke 1674 FC UK/1630 kit and Fluke 1674 FC UK/1630/FTT kit
Earlier models: Fluke 1663 and Fluke 1664 FC

New to these tools? Read what is a multifunction tester. Browse all multifunction installation testers, RCD testers, insulation resistance testers and more Fluke products.

Need help choosing the right model or a quotation? Message our team on WhatsApp or use the quote button on this page.

Fluke 1670 Series FAQ

What models are in the Fluke 1670 Series?

Three models: the Fluke 1672, the Fluke 1673 FC and the Fluke 1674 FC. The FC models add Auto Test, Type B/B+ RCD testing, earth resistance, Z Max memory and Fluke Connect.

What is the difference between the 1673 FC and 1674 FC?

The 1674 FC adds Insulation PreTest, mΩ-resolution loop and line impedance, the IMD test (IEC 61557-8) and the SPD varistor test (IEC 61643-11).

What is Insulation PreTest?

On the 1674 FC, the tester checks whether appliances are still connected before the insulation test. If it finds them, it stops the test and gives a visual and audible warning, so connected equipment is not damaged.

Which insulation test voltages are available?

The 1672 tests at 100, 250, 500 and 1000 V. The 1673 FC and 1674 FC add 50 V. The range goes up to 1000 MΩ on the 1000 V range.

Can the 1670 Series test Type B RCDs?

Yes, the 1673 FC and 1674 FC test Type B and B+ RCDs. All three models test Type AC, A, F and GFCI devices. Type B tests need 195 to 265 V mains.

Which standards does the 1670 Series meet?

Fluke states performance to IEC 61557-1 to -8 and IEC 61557-10, safety to IEC/EN 61010-1, -2-030 and -2-034, and testing to the requirements of IEC/HD 60364-6.

How are results reported?

Results are saved by client, site, board and circuit. Fluke TruTest software builds test certificates over USB-C, and the FC models also sync with the Fluke Connect app over Bluetooth.

Can it measure leakage current or stakeless earth?

Not on its own. The FC models can share data with the Fluke 369 FC leakage current clamp and the Fluke 1630-2 FC earth ground clamp through Fluke Connect.