- Designed for day-to-day installation testing
- Tests voltage, frequency and wiring polarity
- Measures insulation, continuity and loops
- Automatic RCD testing supports routine checks
Fluke 1662 Multifunction Tester
The Fluke 1662 Multifunction Tester is a multifunction installation tester designed for day-to-day electrical installation testing. It measures voltage and frequency, checks wiring polarity for broken neutral wires, and provides insulation resistance, continuity, loop and line resistance testing. The tester also calculates prospective earth fault current (PEFC/IK) and prospective short-circuit current (PSC/IK), bringing several core installation checks together in one instrument.
RCD functions include switching-time measurement, tripping-level ramp testing, variable-current testing and an automatic RCD test sequence, with Type A and AC testing supported. Z-max memory helps evaluate the highest loop test value, while the supplied zero adapter provides compensation for test leads and the mains cord. An illuminated display, self-test, phase sequence indication and switchable automatic start for RCD and loop testing support routine testing and result checking in the field.
Key Benefits
- Combines voltage, frequency, insulation, continuity, loop and line testing in one installation tester
- Wiring polarity checking helps identify broken neutral wires during installation checks
- Automatic RCD test sequencing supports repeated RCD testing without selecting every test individually
- Z-max memory supports evaluation of the highest recorded loop test value
- Switchable auto-start can start RCD and loop tests when the required test conditions are present
- Zero adapter supports compensation of test leads and the mains cord before testing
- Self-test provides an additional instrument check before measurement work
- Illuminated display supports reading test information during use
- Phase sequence indication provides phase-order information for applicable installations
Common Applications
Fluke 1662 Multifunction Tester is suitable for a range of electrical installation testing tasks, including:
- Day-to-day electrical installation testing
- Voltage and frequency measurement
- Wiring polarity checks
- Insulation resistance testing
- Continuity testing of motor windings
- Loop and line resistance measurement
- Prospective earth fault current calculation
- Prospective short-circuit current calculation
- RCD trip time and tripping-level testing
- Phase sequence indication
General Specifications
| Specification | Details |
|---|---|
| Product type | Multifunction installation tester |
| Display | Illuminated display |
| Wiring polarity check | Checks wiring polarity to detect broken N wires |
| RCD functions | RCD switching time, tripping level ramp test, variable current and automatic RCD test sequence |
| RCD types | Type A and AC, including G and S |
| Z-max memory | Stores the highest loop test value for evaluation |
| Auto-start | On/Off switchable auto-start for RCD and loop tests |
| Self-test | Supported |
| Phase sequence indication | Phase sequence indicator |
| Ingress protection | IEC 60529: IP 40 |
| Safety | EN/IEC 61010-1 and EN/IEC 61010-2-034 |
| Measurement category | 300 V CAT IV, 500 V CAT III |
| Performance standards | EN61557-1 to EN61557-7 and EN61557-10 |
Measurement and Accuracy Specifications
| Measurement Function | Range and Resolution | Accuracy |
|---|---|---|
| AC voltage | 500 V 0.1 V resolution |
0.8 % + 3 at 45 Hz – 66 Hz |
| Continuity, RLO | 20 Ω / 0.01 Ω 200 Ω / 0.1 Ω 2000 Ω / 1 Ω Open circuit voltage >4 V |
±(1.5 % + 3 digits) |
| Insulation resistance, 100 V | 100 kΩ to 20 MΩ / 0.01 MΩ 20 MΩ to 100 MΩ / 0.1 MΩ Test current: 1 mA @ 100 kΩ |
±(3 % + 3 digits) Test voltage: +10 %, -0 % |
| Insulation resistance, 250 V | 10 kΩ to 20 MΩ / 0.01 MΩ 20 MΩ to 200 MΩ / 0.1 MΩ Test current: 1 mA @ 250 kΩ |
±(1.5 % + 3 digits) Test voltage: +10 %, -0 % |
| Insulation resistance, 500 V | 10 kΩ to 20 MΩ / 0.01 MΩ 20 MΩ to 200 MΩ / 0.1 MΩ 200 MΩ to 500 MΩ / 1 MΩ Test current: 1 mA @ 500 kΩ |
±(1.5 % + 3 digits) to 200 MΩ ±10 % from 200 MΩ to 500 MΩ Test voltage: +10 %, -0 % |
| Insulation resistance, 1000 V | 100 kΩ to 200 MΩ / 0.1 MΩ 200 MΩ to 1000 MΩ / 1 MΩ Test current: 1 mA @ 1 MΩ |
±(1.5 % + 3 digits) to 200 MΩ ±10 % from 200 MΩ to 1000 MΩ Test voltage: +10 %, -0 % |
| Loop and line impedance, 20 Ω | 20 Ω 0.01 Ω resolution |
No Trip: ±(3 % + 6 digits) Hi Current: ±(2 % + 4 digits) |
| Loop and line impedance, 200 Ω | 200 Ω 0.1 Ω resolution |
No Trip: ±(3 %) Hi Current: ±(2 %) |
| Loop and line impedance, 2000 Ω | 2000 Ω 1 Ω resolution |
±6 % |
| PEFC / PSC | 0 kA to 50 kA 1 A when IK <1000 A 0.1 kA when IK >1000 A |
Determined by the accuracy of loop resistance and mains voltage measurements |
| RCD tripping current, ramp test | 30 % to 110 % of RCD rated current 10 % of IΔN step size 300 ms/step Type G 500 ms/step Type S |
±5 % |
Mechanical and General Information
| Specification | Details |
|---|---|
| Dimensions | 10.0 cm (L) x 25.0 cm (W) x 12.5 cm (H) |
| Weight | 1.3 kg with batteries |
| Battery | 6 x AA Alkaline IEC LR6; usable with 1.2 V NiMH batteries (not included) |
| Battery life | Typical 200 hours idling |
| Operating temperature | -10 °C to +40 °C |
| Storage temperature | -10 °C to +60 °C, limited by battery specification; -40 °C for 100 h |
| Relative humidity | 80 % from 10 °C to 35 °C 70 % from 35 °C to 40 °C |
| Operating altitude | 2000 m |
| Storage altitude | 12 000 m |
| Vibration | MIL-PRF-28800F: Class 2 |
Specification Notes
- Electrical measurement accuracy is specified at 23 °C ±5 °C and ≤80 % RH
- For continuity measurements using the 10 mA test current, add 3 digits to the stated accuracy
- The 2000 Ω loop and line impedance accuracy specification is valid for mains voltage above 200 V
What’s Included
- 6 x AA (IEC LR6) cell batteries
- C1600 hard carrying case
- Zero adapter
- Heavy duty mains cord
- STD standard test lead set
- Padded carrying and waist strap
- Quick reference guide
- TP165X remote control probe and lead
Meta Description
Fluke 1662 Multifunction Tester for installation testing with insulation, loop, continuity, RCD and phase sequence functions.
Official Documents
- Fluke 1660 Series Multifunction Installation Testers Data Sheet
- Fluke 1660 Series Multifunction Installation Tester Brochure
- Fluke 1662/1663/1664 FC Users Manual
What’s Included
- 6 x AA (IEC LR6) cell batteries
- C1600 hard carrying case
- Zero adapter
- Heavy duty mains cord
- STD standard test lead set
- Padded carrying and waist strap
- Quick reference guide
- TP165X remote control probe and lead
You must be logged in to post a review.
Reviews
There are no reviews yet.