The main job of a multifunction installation tester (MFT) is to check the electrical safety of fixed wiring—like the circuits in homes, offices, or factories—either before the power is turned on or after changes have been made. It makes sure the wiring won’t cause electric shocks, fires, or damage to equipment.
The DT-6650 is a rugged, portable multifunction installation tester (MFT) that meets international safety standard IEC 60364. Electricians and inspection engineers use it mainly to check that electrical installations are safe and working properly.
It combines several separate testing devices into one tool, helping make sure that wiring follows the rules and regulations.
For example, the tester checks whether the wiring is in good condition, prevents the risk of electric shocks, and confirms that systems follow standards like IEC 60364. It runs tests for insulation, loop impedance, RCDs (safety switches), continuity, voltage, and phase rotation.
Safety:
IEC61010-1 CAT II 1500V / CAT III 600V
UL, CSA, and TÜV listed for maximum safety and global compliance
Applications:
-- home or commercial building
the tester checks the electrical installation.
-- Initial verification
Initial check of new electrical systems before they are used.
-- Routine safety checks
for example, every 5 to 10 years or when a new tenant moves in.
-- Troubleshooting problems
such as an RCD that keeps tripping for no obvious reason or power that cuts out randomly.
-- Creating safety reports / Certification
save the test results and can send them to computer software, which then produces official Electrical Installation Condition Reports (EICRs).
-- EV charging test
combined with EVSE-200, make test of functions and safety for EV charging station
standard and requirements of IEC 60364, IEC/EN 61557
International Electrotechnical Commission (IEC 60364), specifies the requirements for fixed electrical installations in buildings.
The European standard EN 61557 sets the requirements for different tests used to check electrical installations.
The national equivalent standards of Europe can be found in below table.
requirements of IEC 60364.6.61
It states that verification of the installation shall be carried out in the following sequence:
- Visual inspection
- Testing of the following:
- Continuity of protective conductors;
- Insulation resistance;
- Protection by separation of circuits;
- Floor and wall resistance;
- Automatic disconnection of supply;
- Polarity;
- Functional performance;
Country |
Standard |
Austria |
ÖVE/ÖNORM E8001 |
Belgium |
A.R.E.I./R.G.I.E. |
Denmark |
Stærkstrømbekendtgørelsen, afsnit 6 |
Finland |
SFS 6000 |
France |
NF C 15-100 |
Germany |
DIN VDE 0100-600DIN VDE 0105-100 |
Italy |
CEI 64-8 |
Netherlands |
NEN 1010 |
Norway |
NEK 400 |
Portugal |
HD 384 |
Spain |
UNE 20460 |
Sweden |
SS 436 40 00 Del 6 |
Switzerland |
NIN/NIV 2015 |
UK |
BS 7671/17th Edition IEE Wiring Regulations |
Main functions of CEM MFT
CEM MFT DT-6650 addresses these requirements, and cover following functions
Continuity ( low ohm test )
check that all grounding wires and bonding conductors are fully intact and have very low resistance, ensuring a safe path for fault currents.
insulation resistance (High-Ohms)
This test sends a high DC voltage (250V, 500V, or 1000V) through the insulation to make sure the material between live wires and ground hasn't broken down or deteriorated.
loop and line impedance
This test measures the total resistance in the path that a ground fault current would follow. It's a critical check to make sure that if a fault occurs, the resulting current will be strong enough to trip the circuit breaker or blow the fuse quickly enough to be safe.
earth resistance measurement
This test measures the actual resistance of the ground rod (earth electrode) itself, ensuring it provides a low-resistance path to the earth.
RCD performance testing (Residual Current Devices)
RCDs are safety devices often installed for extra protection, Measures trip time , trip current and tripping level (ramp test) (DT-6650 supports only RCD type AC; DT-6653 supports RCD type AC, A, B, S)
phase sequence
shows whether the phases in a three-phase system are connected in the correct order.
voltage and frequence
measure the incoming supply voltage and the line frequency to verify that the power supply conditions are correct and within expected ranges.
Prospective Fault Current (PFC)
& Prospective Short Circuit Current (PSC) electrical tests conducted at the origin of an installation to determine the maximum current flowing during a fault PSC measures line-to-neutral (or line-to-line) short circuits, while PFC (often specifically PFEC) measures line-to-earth faults.
Features
tool application |
check electrical installation for residence or commercial building |
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core functions |
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Continuity of Protective Conductors (low Resistance) |
Checks if wires and connections are intact |
Insulation Resistance |
Ensures the insulation is not degraded, preventing short circuits or shocks. test voltage: 125V / 250V / 500V / 1000V. gigaohm resistance up to 1000 MΩ (1 GΩ) |
loop impedance |
Verifies that, if a fault occurs, the resulting current will be strong enough to trip the circuit breaker |
earth resistance measurement |
check resistance of the earth connection. ensuring it provides a low-resistance path to the earth. |
RCD Testing |
Confirms Residual Current Devices trip at the correct speed and current. Measures RCD trip current and trip time in parallel and Ramp test (RCD type AC : DT-6650) (RCD type AC, A, B, S: DT-6653) |
phase sequence |
show the phases in a three-phase system are connected in the correct order |
Voltage and sequence |
AC 500V, between L-N, L-PE and N-PE |
PSC, PFC |
calculation of Prospective Fault Current (PFC) and Prospective Short Circuit Current (PSC) |
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Data Logging |
built-in data logging function, record measurements |
Connectivity |
USB / Bluetooth connection to PC / App , specific software for data process |
Data managemnent |
data transfer, process and report and share with team members |
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EV charger testing |
support EV charging station test, by combining EV adapter EVSE-200 |
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advanced safety |
Safe Earth Volt Touchpad detects raised earth voltages >50 V, indicating potential dangerous situations. |
Display |
3.5” TFT color big screen, |
safety ratings |
IEC61010-1 CAT II 1500V / CAT III 600V |
IP Rating |
IP67, water and dust proof, 2m drop protection |
certification |
CE certification, comply with EN 61326, EN 61010-1, BS EN61557 |
Accuracy & Compliance |
official calibration certification. Ensure Accuracy with specification. |
Ease of use |
help function with graphic display how to use device |
multilanguage |
support languages, English , French |
Power source |
rechargeable Ni-MH batteries, support average 15 hours work |
warranty, certification
All products are CE , GS and TüV certificated.
Based on robust quality and customers’ satisfaction, generally we provide 3 years warranty .
