CEM DT-6656 is a professional multifunction installation tester (MFT)
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.
That meets international safety standard IEC 60364. Electricians and inspection engineers use it mainly to check that electrical installations are safe and working properly. The national equivalent standards of Europe
-- Germany DIN VDE 0100-600 DIN VDE 0105-100
-- Switzerland NIN/NIV
-- France NF C 15-100
With full MFT functions it can help installation electrician to check continuity, insulation resistance, polarity, floor and wall resistance, RCD testing etc.
On top of that, it enhance the users’ productivity by AUTO Test. One-button automatic installation-testing sequence.
Wireless Connectivtiy , Data Management and Reporting Software enable users to export data into App and PC, and produce a test certificate / inspection report for the customer.
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 station Test
combined with EVSE adapter, it can go through EV charging function test.
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
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. Uses a ≥200mA test current (at R<2Ω) to verify the integrity of protective conductors
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. Full support for AC-type, A-type, B-type, and S-type(time-delay) and measures trip time (tA), trip current (IA), touch voltage (UB) and protective conductor resistance (RE).
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.
AUTO TEST
Instead of manually selecting and starting each test, the tester performs several important installation tests automatically after one connection.
Features
tool application |
electrical installation for residence or commercial building |
|
|
|
core functions |
|
Continuity (low Resistance) |
Checks if wires and connections are intact |
Insulation Resistance |
Ensures the insulation is not degraded, preventing short circuits or shocks. test voltage: 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, A, B, S) |
phase sequence |
show the phases in a three-phase system are connected in the correct order |
Voltage and sequence |
AC 550V, between L-N, L-PE and N-PE |
PSC, PFC |
calculation of Prospective Fault Current (PFC) and Prospective Short Circuit Current (PSC) |
|
|
|
AUTO TEST |
One-button automatic installation-testing sequence. |
|
|
|
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 |
|
|
|
EV charging test |
Complete EV charging-station test with EVSE adapter |
|
|
|
advanced safety |
Safe Earth Volt Touchpad detects raised earth voltages >50 V, indicating potential dangerous situations. |
|
|
|
safety ratings |
IEC61010-1 CAT IV 300V / CAT III 600V |
IP Rating |
IP67, water and dust proof, 2m drop protection |
certification |
CE certification, comply with EN 61326 |
Accuracy & Compliance |
official calibration certification. Ensure Accuracy with specification. |
Ease of use |
help function with graphic display how to use device |
warranty, certification
All products are CE , GS and TüV certificated.
Based on robust quality and customers’ satisfaction, generally we provide 3 years warranty .
Data Sheet
Data Sheet -- Czechia
Data Sheet -- English
Data Sheet -- French
Data Sheet -- German
Data Sheet -- Italiano
Data Sheet -- Polish
Data Sheet -- Spanish
Data Sheet -- Swedish
Data Sheet -- Turkish
