MFT1825 Megger Network Meter - Megger
Designed for measuring and testing all parameters of low-voltage networks and electrical installations (wiring, RCD, grounding, etc.) with voltage up to 1 kV. Insulation testing with voltage up to 1000V, in the range of 10 kOhm-999 MOhm. VERIFICATION-1600.Network parameter meter MFT 1825 , manufactured by Megger (England), is designed for measuring and testing parameters of electrical installations (wiring, RCD, grounding, etc.) with voltages up to 1000 V.
The MFT 1825 network parameter meter allows you to test insulation voltages of 250V, 500V, 1000V with resistance measurements in the range from 10 kOhm to 999 MOhm. The integrity of the circuit is determined at a current of 200mA and 15mA.
The MFT1815 meter also tests RCDs with ratings of 10mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA. Testing is carried out with current: ½ x I, 1 x I, 2 x I and 5 x I in position 0? and 180.
The MFT 1825 loop parameters are measured two-wire method. 2-wire testing of electrical circuits is performed using only two test leads, measurements - Phase - Ground / Phase - Zero / Phase - Phase. A third wire, which could cause confusion in identifying the part of the circuit under test, is not needed. Measurements take place in the voltage range from 28V to 280V AC in single-phase circuits and up to 480 in three-phase circuits. Short circuit current (SC) is calculated up to 20kA using the measured voltage and loop resistance.
The MFT 1825 device measures alternating voltage up to 600V, allows you to measure frequency in the range from 15Hz to 400Hz and determine the phase sequence.
The resistance of grounding devices is measured using a 2- and 3-wire circuit using the pin method. Currents 0.45 mA or 4.5 mA, resistance resolution 0.01 ohm, noise rejection 20 V peak-to-peak.
The MFT1825 meter has a large LCD display with digital display and imitation of an analog scale. Selecting test or measurement mode is simple and convenient, and is also separated by color gradation. Much attention is paid to testing safety; if the electrical installation being tested is energized, the operator will be notified about this, and the device will not fail (within the CATIV standard).
The MFT 1825 M egger network parameter meter is made in a shock-resistant, moisture-dust-proof housing (IP 54).
Functional features of the MFT 1825 device:
- Measuring network voltage and frequency
- Insulation testing with voltage 250V, 500V,1000V
- Measuring loop resistance and calculating short-circuit current
- Testing of RCDs rated 10mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA
- RCD current testing: ½ x I, 1 x I, 2 x I and 5 x I in position 0? and 180
- Checking grounding devices using a 2- and 3-wire scheme.
Differences from MFT 1815:
- Insulation testing with voltage 250V, 500V,1000V
- Testing of RCDs rated 10mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA
- RCD current testing: ½ x I, 1 x I, 2 x I and 5 x I in position 0? and 180
- Checking grounding devices using a 2- and 3-wire scheme.
MFT1825 Specifications :
Insulation testing | |
Insulation Test Voltage | 1000 V, 500 V, 250 V |
Short circuit/load current | 1.5 mA/1 mA |
Resistance measurement and conductivity test | |
Resistance measurement ranges | 0.01 Ohm – 99.9 Ohm; 100 Ohm – 99.9 kOhm |
Max. Voltage | 5V±1V |
Current (user selectable) | 205 mA ± 5 mA; 15 mA ± 5 mA |
Loop testing | |
Testing | Phase-Phase, Phase-Neutral(Zero), Phase-Ground |
Phase-Ground Voltage | 48 V – 280 V (45 Hz-65 Hz) |
Voltage Phase-Phase | 48 V – 480 V (45 Hz-65 Hz) |
Loop resistance measurement range | 0.01 Ohm – 999 Ohm |
Short circuit current | Up to 20 kA |
RCD test | |
RCD type | A, AC, S; three-phase RCDs (without ground) |
Currents | 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA |
Mode | 1/2I, I, 2I, 5I; automatic test |
Ground resistance measurement | |
Mode | 2 pole, 3 pole |
Measuring Network Parameters | |
Measuring network voltage and frequency | 10V – 600V (15Hz-400Hz) |
Determining the phase order | There is |
Common parameters | |
Operating temperature range | -10 °С…+55 °С |
Work from: | 6 AA batteries |
Weight | 1 kg (with batteries) |
dimensions | 150 mm x 85 mm x 235 mm |
Protection from dust and moisture | IP 54 |
Safety | CAT IV |
Basic equipment MFT 1825 :
- MFT1825 Network Parameter Meter
- Manual
- CD with instruction manual
- SP5 probe with test start button
- Neck strap
- 3 test cables with probes and crocodile clips
- Test cables with Euro plug
- Plastic case
- Warranty card of GC "Energoscan"
Additional equipment MFT1825:
- Soft transport bag
- Test cables with 10 A fuses with alligator clips and probes
- ETL30, 30 m extension cable
- ETL50, 50 m extension cable
- Power supply from 12 V
Guarantee period 3 года