| Model | 1662 | 1663 | 1664 FC | 
        
            | Measurement Function | 
        
            | Insulation-PreTest ™ safety function NEW |  |  | • | 
        
            | Insulation at L-N, L-PE, N-PE inputs NEW |  |  | • | 
        
            | Auto Test sequence NEW |  |  | • | 
        
            | Loop and line resistance—mΩresolution |  |  | • | 
        
            | Continuity at L-N, L-PE, N-PE inputs NEW |  | • | • | 
        
            | Test smooth dc sensitive RCDs (Type B/B+) |  | • | • | 
        
            | Earth resistance |  | • | • | 
        
            | Voltage trms (ac and dc) and frequency | • | • | • | 
        
            | Wiring polarity checker, detects broken PE and N wires | • | • | • | 
        
            | Insulation resistance | • | • | • | 
        
            | Continuity and resistance | • | • | • | 
        
            | Measure motor windings with continuity test (@ 10 mA) | • | • | • | 
        
            | Loop and line resistance | • | • | • | 
        
            | Prospective Earth Fault Current (PEFC/IK) | • | • | • | 
        
            | Prospective Short-Circuit Current (PSC/IK) | • | • | • | 
        
            | RCD trip time | • | • | • | 
        
            | RCD trip current (ramp test) | • | • | • | 
        
            | Measures trip time and current for RCD type A and AC in one test | • | • | • | 
        
            | RCD variable test current | • | • | • | 
        
            | Automatic RCD test sequence | • | • | • | 
        
            | Phase sequence test | • | • | • | 
        
            | Other features | 
        
            | Fluke Connect ® compatibility NEW |  |  | • | 
        
            | ShareLive ™ calling NEW |  |  | • | 
        
            | Fluke Cloud ™ storage NEW |  |  | • | 
        
            | On/Off switchable Auto Start for RCD and Looptest NEW | • | • | • | 
        
            | Self-test | • | • | • | 
        
            | Illuminated display | • | • | • | 
        
            | Memory, interface | 
        
            | Z Max memory NEW |  | • | • | 
        
            | Memory | • | • | • | 
        
            | IR-USB and BLE interface (use with optional Fluke DMS software and FVF) |  | IR-USB | IR-USB/BLE | 
        
            | Included Accessories | 
        
            | Heavy duty mains cord with single input connector NEW | • | • | • | 
        
            | Hard case | • | • | • | 
        
            | Remote control probe | • | • | • | 
        
            | Zero adapter | • | • | • | 
        
            | General specifications | 
        
            | Specification | Characteristic | 
        
            | Size | 10 cm (L) x 25 cm (W) x 12.5 cm (H) | 
        
            | Weight (incl. batteries) | approx. 1.3 kg | 
        
            | Battery size, quantity | 1.5 V type AA (IEC LR6), 6 pcs. | 
        
            | Sealing | IP 40 | 
        
            | Safety | Complies with IEC/EN61010-1, UL61010, ANSI/ISA –s82.02.01 and CAN/CSA c22.2 No. 1010
 | 
        
            | Overvoltage | CAT III 500 V, CAT IV 300 V | 
        
            | Performance | EC/EN61557-1 to IEC/EN61557-7 and IEC/EN61557-10 | 
        
            | AC and DC voltage measurement trms | 
        
            | Range | Resolution | Input Impedance | Overload Protection | 
        
            | 500 V | 0.1 V | 3.3 MΩ | 660 V rms | 
        
            | Continuity testing (R LO ) | 
        
            | Range (Autoranging) | Resolution | Open Circuit Voltage | 
        
            | 20 Ω/200 Ω/2000 Ω | 0.01 Ω/0.1 Ω/1 Ω | > 4 V | 
        
            | Insulation resistance measurement (R ISO ) | 
        
            | Test voltages | 
        
            | 1662 | 1663/1664 FC | 
        
            | 100-250-500-1000 V | 50-100-250-500-1000 V | 
        
            | Test Voltage | Insulation Resistance Range | Resolution | Test Current | 
        
            | 50 V | 20 MΩ/50 MΩ | 0.01 MΩ/0.1 MΩ | 1 mA @ 50 kΩ | 
        
            | 100 V | 20 MΩ/100 MΩ | 0.01 MΩ/0.1 MΩ | 1 mA @ 100 kΩ | 
        
            | 250 V | 20 MΩ/200 MΩ | 0.01 MΩ/0.1 MΩ | 1 mA @ 250 kΩ | 
        
            | 500 V | 20 MΩ/200 MΩ/500 MΩ | 0.01 MΩ/0.1 MΩ/1 MΩ | 1 mA @ 500 kΩ | 
        
            | 1000 V | 20 MΩ/200 MΩ/1000 MΩ | 0.01 MΩ/0.1 MΩ/1 MΩ | 1 mA @ 1 MΩ | 
        
            | Insulation pretest | 
        
            | Insulation safety pretest | Requires to connect the Tester to L, N and PE. | 
        
            | Loop and line impedance (Z I ) | 
        
            | Range | Resolution | 
        
            | 10 Ω(Hi current mΩmode)/20 Ω/200 Ω/2000 Ω | 1 mΩ/ 0.01 Ω/ 0.1 Ω/1Ω | 
        
            | Prospective earth fault current, PSC test | 
        
            | Range | Resolution | 
        
            | 1000 A/10 kA (50 kA) | 1 A/0.1 kA | 
        
            | Computation: Prospective Earth Fault Current (PEFC) or Prospective Short Circuit Current (PSC) determined by dividing measured mains voltage by measured loop (L-PE) resistance or line (L-N) resistance, respectively.
 | 
        
            | RCD testing, RCD types tested | 
        
            | RCD Type |  | Model 1662 | Model 1663/1664 FC | 
        
            | AC1 | G2, S3 | A/F4, AC1, G2, S3 | A/F, AC, B/B+5, G, S | 
        
            | 1Responds to AC. 2General, no delay. 3Time delay. 4Responds to pulsed signal. 5Responds to smooth DC signal. | 
        
            | RCD trip time test (▵T) | 
        
            | Current Settings1 | Multiplier | Measurement Range | 
        
            | RCD Type G | RCD Type S | 
        
            | 10-30-100-300-500-1000 mA – VAR | x ½, x 1 | 310 ms | 510 ms | 
        
            | 10-30-100 mA | x 5 | 50 ms | 160 ms | 
        
            | 11000 mA type AC only. 700 mA maximum type A in VAR mode, VAR mode not available for type B. | 
        
            | RCD trip current measurement/ramp test (I ▵N) | 
        
            | Current Range | Step Size | Dwell Time | Measurement Accuracy | 
        
            | Type G | Type S | 
        
            | 30 % to 110 % of RCD rated current1 | 10 % of I ▵N 2 | 300 ms/step | 500 ms/step | ± 5 % | 
        
            | Notes 30 % to 210 % for Type A I▵N = 10mA
 20 % to 210 % for Type B
 | Specified trip current ranges (EN 61008-1): 50 % to 100 % for Type AC
 35 % to 140 % for Type A (>10 mA)
 35 % to 200 % for Type A (=10 mA)
 50 % to 200 % for Type B
 | 
        
            | 130 % to 150 % for Type A I▵N > 10 mA. 25 % for Type B | 
        
            | Earth resistance test (RE) Model 1664 FC and 1663 only | 
        
            | Range | Resolution | Frequency | Output Voltage | 
        
            | 200 Ω/2000 Ω | 0.1 Ω/1Ω | 128 Hz | 25 V | 
        
            | Phase sequence indicaton | 
        
            | Icon | Range | Display | 
        
            | Phase Sequence indicator is active | 100 to 500 V | “1-2-3”: or “3-2-1” |