Kewtech KT66DL 12 in 1 Multifunction Tester
The Kewtech KT66DL 12-in-1 Multifunction Tester is an innovative, precise, reliable test instrument with an extra-large (3.5”) dot-matrix colour display, rotary dial, and four function buttons. This easy-to-use multifunction tester is ideal for everyday contractors. The multifunction tester supports an eclectic array of measurement functions and tests including loop testing with three- and two-wire low current options, RCD testing, and EV charging point testing. For further information, please see the following list:
- ATT (Anti-Trip Technology) Loop: no-trip LOOP L-PE testing on all RCDs; two-wire option in case there is no neutral.
- Loop: high test current range of 2Ω with 0.001Ω resolution
- Zs Limit: compares the measured result with the values stated in the Electrical Installations Standard (BS7671 – 18th Edition)
- 55V Loop: low and high current loop test of 110V CTE circuits
- RCD Tests: single, auto, ramp, and contact voltage test options. Suitable for checking type AC, A, F, B (General & Selective), EV, and variable RCDs.
- Earth: two- and three-wire earth resistance tests
- Insulation Resistance Tests: 100V, 250V, 500V and 1000V tests with auto-discharge voltage
- Continuity: 200mA and 150mA tests with a selectable buzzer
- Phase Rotation: test three-phase lines; the sequence is indicated on the display
- True-RMS Voltage: 2-600V
- SPD (Surge Protection Device) Test: for SPDs that use varistors
- PAT (Portable Appliance Tester) Function: includes insulation and protective conductor resistance tests
- Selectable Touch Voltage Test
Users can view multiple parameters simultaneously via the Kewtech KT66DL 12-in-1 Multifunction Tester’s large display; they can also see all the auto-tests on one screen. This simple-to-use multifunction tester supports three ways of initiating tests: pressing the test button once, holding the test button down to ensure continuous testing, using the test buttons on a test probe (sold separately). Help-displays guide users through each test function, also adding to the ease of use. Results can be saved to the advanced memory, which automatically assigns the test type, circuit number, and DB to the test data.
Finally, to ensure longevity and durability, the KT66DL is supplied with a lid, heavy-duty soft carry case, and G7 test leads. It has a safety rating of IEC 61010-1 CAT IV 300V, CAT III 600V, IEC 61557-1,2,3,4,5,6,7,10.
The Kewtech KT66DL 12-in-1 Multifunction Tester is a versatile, durable, and simple-to-use test instrument.
Key Features
- Innovative, precise, reliable multifunction tester
- Extra-large (3.5”), dot-matrix, colour display
- Rotary display
- Four function buttons
- Ideal for everyday contractors
- An eclectic array of measurement functions
- Loop testing with three- and two-wire low current options
- 55V Loop
- RCD testing
- EV charging point testing
- ATT (Anti-Trip Technology) loop
- Zs limit
- Two- and three-wire earth resistance tests
- Insulation resistance tests
- Continuity tests
- Phase rotation tests
- True-RMS voltage
- SPD (Surge Protection Device) test
- PAT (Portable Appliance Tester) function
- Selectable touch voltage test
- View multiple parameters simultaneously
- See all the auto-tests on one screen
- Supports three ways of initiating tests
- Help displays guide users through each test function
- Advanced memory: results are automatically saved with the test type, circuit number, and DB
- Supplied with a lid, heavy-duty soft carry case, and G7 test leads
- Safety rating: IEC 61010-1 CAT IV 300V, CAT III 600V, IEC 61557-1,2,3,4,5,6,7,10
- A versatile, durable, and simple-to-use test instrument
What’s Included?
- Kewtech KT66DL 12-in-1 Multifunction Tester
- Kewtech ACC064SP G7 Test Probe with Remote Test Button
- Kewtech ACC065 G7 Test Lead Set
- Batteries
- Software
- Kewtech Kamp 12 Mains Lead
- Test Lead Pouch
- Soft Carry Case
- USB Cable
- Padded Strap
- Instruction Manual
- Calibration Certificate
Kit Comparison
KT66DL | KT66ET | |
Kewtech KT66DL 12-in-1 Multifunction Tester |
✔ | ✔ |
Kewtech ESKIT Earth Spike Kit |
✖ | ✔ |
Kewtech ACC064SP G7 Test Probe with Remote Test Button |
✔ | ✔ |
Kewtech ACC065 G7 Test Lead Set |
✔ | ✔ |
Batteries |
✔ | ✔ |
Software |
✔ | ✔ |
Kewtech Kamp 12 Mains Lead |
✔ | ✔ |
Test Lead Pouch |
✔ | ✔ |
Soft Carry Case |
✔ | ✔ |
USB Cable |
✔ | ✔ |
Padded Strap |
✔ | ✔ |
Instruction Manual |
✔ | ✔ |
Calibration Certificate |
✔ | ✔ |
Kewtech Multifunction Tester Comparison
FEATURES | KT63DL | KT63PLUS | KT65DL | KT66DL |
Continuity at 200mA with auto null function for test leads | • | • | • | • |
Continuity 15mA test current option | - | - | - | • |
Insulation 250 V, 500 V & 100 V | • | • | • | • |
Insulation 100 V | - | - | - | • |
Polarisation and dielectric absorbtion index | - | - | - | • |
Digital insulation resistance bargraph | - | - | - | • |
PAT testing with optional PAT Adaptor I | • | • | • | • |
PAT results memort, auto ID advance and downlaod with software | - | - | • | • |
Continuous Live Warning | • | • | • | • |
55V Loop test (tests 110V CTE on-site systems) | • | • | • | |
High voltage LED light | - | - | • | - |
2 Wire low current ATT non RCD trip loop tests | - | - | - | • |
EVSE charging point loop tests | - | - | - | • |
High current loop tests | • | • | • | • |
PSC/PFC test | • | • | • | • |
50kA PFC range using 25A test current | - | - | - | • |
Loop test noise level indicator | - | - | - | • |
0.001 ohm resolution high current loop test | - | • | • | • |
Selectable Max Zs table | - | - | • | • |
Selectable loop pulse function to overcome contact resistance | - | - | - | • |
Hands free testing | • | • | • | • |
Backlight | • | • | • | • |
RCD type AC, ACS, A & AS | • | • | • | • |
Single auto & ramp tests | • | • | • | • |
RCD type F, B, BS & EV | - | - | - | • |
EVSE 6mA RDCD ramp, auto & single test | - | - | - | • |
Uc test | - | - | - | • |
Variable RCD test | - | - | - | • |
RCD auto test all results on one screen | - | • | • | • |
Test probe with remote test button | - | • | • | • |
Advanced memory software included | - | - | • | • |
Phase rotation | - | • | • | • |
Earth resistance with optional Acces kit | - | - | • | • |
LCD Dsiplay | • | - | - | - |
Dot Matrix Display | - | - | • | - |
Large Colour Matrix Display | - | • | - | • |
Protective lid on instrument | - | - | • | • |
Carry case | Soft Case | |||
Fused test leads | Optional | |||
Help menu | - | - | - | • |
IP40/54 | 54 | 54 | 40 | 40 |
Wiring & lead polarity check | • | • | • | • |
Mains polarity check | • | • | - | - |
Touch pad for earth potential limits 25V or 50V | - | - | • | • |
Volts measurements | • | • | • | • |
Separate volts function with L-N,L-PE & N-PE simultaneous display | - | - | - | • |
Magnetic feet | • | - | - | - |
- 50M R2 Extension Wander Test Lead (PVC Cable Reel) - TSTL50M, typically £49.00
- Lockout Starter Kit - Incl. Hasps, Padlocks, Tags, MCB Lockout & More - LT-LPP, typically £25.00
- TestSafe Fibreglass Fish Tape Cable Puller – 30m - TS-FG-FT-30M, typically £24.99
- Evik 10 Piece Cable Pulling Fibreglass Rods, Standard Kit in Tube - EV-STD-KIT-T, typically £39.00
Kewtech KT66DL 12-in-1 Multifunction Tester Technical Specifications
Loop Impedance
Range | 20.00/200.0/2000Ω (auto-ranging) |
Display range | 0.00 - 20.99Ω / 16.0 - 209.9Ω / 160 - 2099Ω |
Measuring range | 0 – 2000Ω |
Accuracy | ±2.0%rdg±8dgt |
Open-circuit voltage | 7 – 14V DC |
Test current | 200mA test: 200mA or more (2Ω or less) 15mA test: 15mA±3mA (short-circuit) |
Note |
• Enabled if pre-set NULL value is 9Ω or less. • Buzzer: Buzzer sounds when measured resistance is 2Ω or less. |
Volts
Range | 300.0/600V (Auto-ranging) |
Display range | Voltage: 2.0 – 314.9V, 240 – 629V |
Frequency: 40.0 – 70.0Hz (displayed at 2V or higher) | |
Measuring.range | Voltage: 2 – 600V |
Frequency: 45 – 65Hz | |
Accuracy | Voltage: ±2%rdg±4dgt |
Frequency: ±0.5%rdg±2dgt |
Uc (RCD)
Mains voltage range | 100-260V |
Range | 100V |
Display range | 0.0 - 104.9V |
Measuring range | 0 - 100V |
Accuracy | +5%to+15%rdg ±8dgt 230V |
Test current | 50 % or less of IΔn |
Earth
Precise measurement | Simplified measurement | |
Range | 20.00 / 200.0 / 2000Ω (auto-ranging) | |
Accuracy | 20Ω range; ±2%rdg±0.08Ω The other ranges: ±2%rdg±3dgt (Aux. earth resistance: 100Ω) |
±2%rdg±0.08Ω The other ranges: ±2%rdg±3dgt |
Output current | 20Ω range: approx. 3mA, 200v range: approx. 1.7mA | |
2000Ω range: approx. 0.7mA Frequency: 825Hz |
Phase Rotation
Measuring Range | 48 – 600V / 45 - 65Hz |
Criteria of judgement | Correct sequence: Clockwise symbol and “1, 2, 3” are displayed. |
Reversed sequence: Counter-clockwise symbol and “3, 2, 1” are displayed. |
Insulation
Rated voltage | 100V | 250V | 500V | 1000V | SPD (Varistor) 1000V |
Range | 2.000/20.00/200.0MΩ auto-ranging |
20.00/200.0/1000MΩ auto-ranging |
20.00/200.0/2000MΩ | 0 -1000V (increases in 1V steps) | |
Display range | 0.000 - 2.099MΩ | 0.00 - 20.99MΩ | 0.00 - 20.99MΩ | 1049V | |
1.60 - 20.99MΩ | 16.0 - 209.9MΩ | 16.0 - 209.9MΩ | |||
16.0 - 209.9MΩ | 160 - 1049MΩ | 160 - 2099MΩ | |||
Measuring range | 0 - 200MΩ | 0 - 1000MΩ | 0 - 2000MΩ | 0 - 1049V | |
Accuracy | 2.000MΩ range: ±2%rdg±6dgt | 20.00MΩ range: ±(2%rdg+6dgt), 200.0MΩ range: ±(2%rdg+6dgt) | ±5%rdg±5dgt | ||
20.00MΩ range: ±2%rdg±6dgt | 1000MΩ range: ±(5%rdg+6dgt) | 2000MΩ range: ±(5%rdg+6dgt) | |||
200MΩ range: ±5%rdg±6dgt | |||||
Rated meas. current |
1.0 - 1.2mA at 100kΩ |
1.0 - 1.2mA at 250kΩ |
1.0 - 1.2mA at 500kΩ |
1.0 - 1.2mA at 1MΩ |
1.0 mA |
Loop
Function | LOOP ATT | LOOP HIGH | ||||
3-Wire L-PE | 2-Wire L-PE | L-PE0.01ΩRes | L-PE0.001ΩRes | L-N/L-L | ||
Mains input voltage range |
100 – 260V 50/60Hz (L-N < 20Ω) |
48 – 260V 50/60Hz | 100 - 260V 50/60Hz | 48 - 260V 50/60Hz | ||
Range | LOOP | 20.00/200.0/2000Ω (auto-ranging) | 20.00/200.0/2000Ω | 2.000Ω | 20.00Ω | |
PFC/PSC | 2000A/20kA | 2000A/20kA (PFC only) | 2000A/50kA (PFC only) | 2000A/20kA (PSC only) | 2000A/20kA (PSC only) | |
Display range | LOOP | 0.00 – 20.99Ω 21.0 – 209.9Ω 210 – 2099Ω |
0.00 –20.99Ω 21.0 –209.9Ω 210 –2099Ω |
0.00 - 20.99Ω 21.0 - 209.9Ω 210 –2099Ω |
0.000 - 2.099Ω | 0.00-20.99Ω |
PFC/PSC | 0 – 2099A 2.10 – 20.99kA |
0 – 2099A 2.10 – 20.99kA (PFC only) |
0 – 2099A 2.10 – 50.49kA (PFC only) |
0 – 2099A 2.10 – 20.99kA (PFC only) |
0 – 2099A 2.10 – 20.99kA (PSC only) |
|
Meas. range | LOOP | 0 – 2000Ω | 0 – 2000Ω | 0 – 2000Ω | 0 – 2Ω | 0 – 20 |
Accuracy | LOOP | ±(3%rdg+6dgt) | ±(3%rdg+10dgt) | ±(3%rdg+4dgt) | ±(3%rdg+25mΩ) | ±(3%rdg+4dgt) |
PFC/PSC | Depending on the accuracies of voltage and LOOP measurements | |||||
Test current @ 230V | L-N:6A/60ms N-PE:10mA (5.3Hz) |
L-PE: 15mA | 20Ω: 6A/20ms, 200Ω: 0.5A/20ms 2000Ω: 15mA/500ms |
25A/20ms | 6A/20ms |
RCD
Mode | Rated residual operating current (mA)(IΔn) | Test current | Duration | |||
Current (mA) rms | Accuracy @230V | Meas. time | Accuracy | |||
x 1/2 | AC | G: 10/30/100/300/500/1000 S: 100/300/500 | IΔn×1/2 | -8% to-2% VAR:-10% to 0% | 2000ms | Trip Time ±(1%+2ms) Measuring time ±3% of FS |
A/F | G: 10/30/100/300/500 AS:100/300/500 | IΔn×1/2 | -10% to 0% | |||
B | G: 10/30/100/300 S:100/300 | IΔn×1/2 | -10% to 0% | |||
x 1 | AC | G:10/30/100/300/500/1000 S: 100/300/500 | IΔn | +2% to +8% VAR:0% to +10% | G:550ms S:1000ms |
|
A/F | G: 10/30/100/300/500 AS:100/300/500 | IΔn×1.4 (10mA: IΔn×2) | 0% to +10% | |||
B | G: 10/30/100/300 S:100/300 | IΔn×2 | 0% to +10% | |||
6 mA DC | IΔn | 0% to +10% | 10.5s | |||
x 5 | AC | G: 10/30/100 S: 100 | IΔn×5 | +2% to +8% VAR:0% to +10% | 410ms | |
A/F | G: 10/30/100 AS: 100 | IΔn×5×1.4 | 0% to +10% | |||
B | 10/30 | IΔn×2×5 | 0% to +10% | |||
Ramp 20 to 110% |
AC | 10/30/100/300/500 S: 100/300/500 | IΔn | -4% to +4% | by 10% G: 300ms S: 500ms |
Measuring time ±3% of FS |
A/F | G: 10/30/100/300/500 AS:100/300/500 | IΔn×1.4 (10mA:IΔn×2) | -10% to +10% | |||
B | G: 10/30/100/300 S: 100/300 | IΔn×2 | -10% to +10% | by 2% /150ms | ||
Ramp EV 30 to 100% | 6 mA DC | IΔn | -10% to +10% | by 2% / 500ms |
General Specifications
Applicable Standards | IEC 61010-1 CATIII (600V) CATIV (300V) pollution degree 2, IEC 61010 -Tester , -2-030, -2-034, IEC61557-1,2,3,4,5,6,7,10, IEC 60529 IP40, EN 61326-2-2 (EMC) |
Dimensions & Weight | 136 (L) x 235(W) x 114 (D) mm, 1300g including batteries (8 x AA / LR6) |
Reviews
SKU | KT66DL |
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Manufacturer Part Code | KT66DL |