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Table of Contents
Related Manuals for Megger MFT1500/2
Summary of Contents for Megger MFT1500/2
- Page 1 MFT1500/2, MFT1552 and MFT1553 Series Multifunction Tester USER MANUAL...
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Page 2: Safety Warnings
SAFETY WARNINGS Safety Warnings and Precautions must be read and understood before the instrument is used. They must be observed during use. ■ The circuit under test must be switched off, de-energised and isolated before test connections are made when carrying out insulation and continuity ■... -
Page 3: Table Of Contents
CONTENTS Safety Warnings High Current loop test Description P-N and P-P loop test Overview of MFT1500 Series Instrument layout Residual current device (RCD testing) Display 1/2I, I, 5I, 0 & 180° Control panel RCD auto test sequence (MFT1552 only) Front switch panel Ramp testing Connection panel DC Sensitive RCDs... -
Page 4: Description
DESCRIPTION Thank you for purchasing the MFT1500 Multifunction Tester. The Test selection RCD range MFT1500 series of tester is compact and designed to perform all of the selection functions required by the electrical contractor to fully test domestic, commercial and industrial wiring. Specially designed to comply with UK, European and other International wiring regulations and standards, the MFT may be used on all single and three phase systems with rated voltages up to 300 Volts a.c. -
Page 5: Battery /Fuse Warning, Fitting And Replacement
7. Press the TEST button to exit from the set-up menu. Disconnect the instrument from any circuits. Remove the battery cover as above. The blown fuse should be replaced with a 500 mA (F) HBC 10 kA 500 V fuse (Megger part no.25950-039) -
Page 6: Operation
OPERATION Polarity indication GENERAL OPERATION If connected to a single-phase power supply by a plug or by the 3-wire lead Note: These functions are generally applied and not limited to an set, three LCD ‘neons‘ marked L-PE, N-PE and L-N respectively will indicate individual test function. -
Page 7: Voltage Measurement (V)
The BLACK switch operates a white LED, which illuminates the probe tip OR Using the mains plug lead set (OPTION3) for use when testing under low light levels. Voltage between the L and E pins is displayed There is also a visual indication via a red/green LED to notify the user of Note:- When connected to the circuit under test the instrument will the display status, the meanings are as follows: automatically display AC or DC voltage measurement up to 500 V . -
Page 8: Lead Null
Notes:- are connected to the circuit under test. The contact symbol on the Method of measurement display closes when a resistance of approximately 200 kΩ or less is The 2-wire lead set must be used for this measurement. The instrument detected. -
Page 9: Test Lock
Method of measurement Set the left hand rotary range knob to the required INSULATION Range. A current limited (2 mA) d.c source is used, and the resistance is calculated 250 V Insulation measurement to 99.9 MΩ from measurements of the voltage and current. 500 V Insulation measurement to 299 MΩ... -
Page 10: No Trip (15 Ma) Loop Test
[NO TRIP] LOOP-TESTING - SINGLE PHASE TESTING ONLY Select NO TRIP PFC test range. The NO TRIP loop test is a high resolution low current earth loop resistance Connect the leads as shown. measurement (Loop L-PE 0.01 Ω) range which does not trip RCDs with a rated current 30 mA or higher. -
Page 11: P-N And P-P Loop Test
Measured loop value is displayed. If desired the test can be repeated by pressing the YELLOW TEST button. If desired the test can be repeated by pressing the YELLOW PHASE-NEUTRAL OR PHASE-PHASE LOOP IMPEDANCE TEST button. Test Lead set: OPTION 1 High current Phase-Earth loop impedance (not at a power socket): Connect the GREEN lead to NEUTRAL and the RED lead to... -
Page 12: Pfc
PROSPECTIVE FAULT CURRENT [PFC HI] PHASE TO NEUTRAL PFC As for the 25 A Phase to Earth PFC test but with the following test lead OPTION 2 OPTION 1 connections: Mains plug 2 wire measurement test lead Connect the GREEN lead to the NEUTRAL and the RED lead to GREEN PHASE. - Page 13 PFC measurement accuracy Phase-Earth loop is being measured, this leakage may be due to filter capacitors, etc. An accurate PFC measurement requires an accurate measurement of the loop resistance. The difference of a few digits in the loop resistance Test results may be adversely affected by supply voltage fluctuations or measured will have a large effect on the PFC displayed.
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Page 14: Residual Current Device (Rcd Testing)
RESIDUAL CURRENT DEVICE [RCD] TESTING Note: The Breaker symbol indicates whether the test function selected is a NON-TRIPPING or TRIPPING test: OPTION 1 OPTION 2 OPTION 3 2 wire lead Switched Mains plug CLOSED = NON-TRIPPING test probe test lead OPEN = TRIPPING test GREEN GREEN... -
Page 15: Rcd Auto Test Sequence (Mft1552 Only)
If the RCD fails to trip, >400 ms is displayed (indicating a Select the AUTO RCD TEST function on the main range knob, failed test). and the appropriate RCD current rating on the small range knob. 5 x I RCD Testing Set the LEFT [RCD] rotary range knob to the [ 5I ] test range. -
Page 16: Dc Sensitive Rcds
Press the YELLOW TEST button for two seconds. The trip current is displayed. Method of measurement The two wire lead or plug should be used for this measurement. A If the RCD fails to trip, ">***mA" will be displayed, where constant current source is connected across the supply and the time taken *** indicates the last test current applied. -
Page 17: Bluetooth Downloading (Mft1553 Only)
BLUETOOTH DOWNLOADING Bluetooth Pairing (PC or Laptop) (ii) Select the ‘Connections’ Tab. (iii) Select the ‘Bluetooth’ symbol and select ‘Turn on’. 1. Set the MFT Range knob to the Bluetooth SET UP position. (iv) Select ‘Use Bluetooth Manager’ option. 2. Press the Bluetooth (Lock) button on the MFT, the MFT will show ‘- - -‘... - Page 18 Bluetooth Pairing (Palm v5) 3. (i) Turn on your mobile and press the left hand button to select ‘Start’ menu. 1. Set the MFT Range knob to the Bluetooth SET UP position. (ii) Select the ‘Connections’ symbol. 2. Press the Bluetooth (Lock) button on the MFT, the MFT will show (iii) Select the ‘Bluetooth’...
- Page 19 screen. 8. On the Symbian device select the top left hand menu button’Yes’ to authorise the Symbian device to make the connection automatically. 9. Select the ‘Home’ button to return to the main Palm desktop. 9. Select ‘Exit’ to return to the main Symbian desktop. Bluetooth Pairing (Symbian S60 Version 3) Downloading Test Results 1.
- Page 20 TESTING WITH A PAIRED MFT1553 Insulation Testing 2. Press the Bluetooth (Lock) button once to display the various options; L- n, L-E and L-L. 1. Perform a Insulation test described previously 3. Press the Bluetooth (Lock) button repeatedly to scroll through these 2.
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Page 21: Technical Specification
TECHNICAL SPECIFICATIONS Electrical specification Loop ranges (to EN 61557-3) Voltage range Line/Earth (Single phase) The voltage will enable the user to ascertain if a system is live prior to Supply 55 V - 270 V 45Hz to 65Hz testing. 0.01 Ω - 9.99 Ω (±5% ±0.03 Ω) 25 A Accuracy ±2% ±2 digits 10.0 Ω... - Page 22 Prospective Short-circuit Current (PSC) I trip A ramp test that displays actual trip current . Prospective Short circuit current = Nominal Voltage / Loop Resistance DC sensitive A DC test current at I current. Accuracy is therefore derived from the loop test. Current accuracy 1/2I -8% to -2% 1 A - 199 A 1 A resolution...
- Page 23 Part 10 - Combined measuring equipment earth, 500 V phase to phase. In addition Probe designed to meet IEC 61010-031, Double insulated to Installation Category III, 300 V phase to earth, 500V phase to phase. In accordance with IEC61326-1 Operational uncertainties: visit www.megger.com...
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Page 24: Accessories
(6231-593) instead of a BS plug. Additional accessories with MFT1502/MFT1552/MFT1553 The Bluetooth word mark and logo are owned by Bluetooth SIG. Inc. and As MFT1501 plus: any use of such marks by Megger is under licence. Illuminated switched probe Instrument/document carry case... -
Page 25: Repair And Warranty
REPAIR AND WARRANTY Returning your product to Megger - UK and USA service The instrument contains static sensitive devices, and care must be taken in centres handling the printed circuit board. If an instrument’s protection has been impaired it should not be used, but sent for repair by suitably trained and 1. - Page 26 “Fn” key and press the “F5” key to enable “Bluetooth” operation. It is vital that you reboot you computer after the installation is complete and before running “Megger Download Manager” for the first time. 2. Typical install process for A Widcomm Driver (Belkin in this Click “Finish”...
- Page 27 You MUST Click Skip at this Stage Click Next. Click Next. Click Finish and you must reboot the computer. Confirm ticks are shown in the boxes shown……Click Next. 3. Typical install process for A Bluesoleil Driver. The install process starts when the vendor CD is placed in the drive. This will be confirmed with a message balloon as shown.
- Page 28 Click OK. Accept the default settings and Next. Click Next. To start Install, Click on Install. Click “I Accept…” and Next. Click on Finish. Accept the default settings and Next.
- Page 29 4. Typical install process for Microsoft Drivers. Plug “Bluetooth” Dongle into computer. you must reboot the computer. Auto detect and install will now start. Right Click on “Bluetooth” icon in the system tray. Click on “Open Bluetooth Settings”. Plug the Dongle in when requested. Click on “Com Ports”...
- Page 30 Click Finish and you must reboot the computer. Incoming should be selected by default. If not click on radio button. Click OK. Click on “Options” tab. Click on “Turn Discovery On”...
- Page 32 E ausales@megger.com F +1 416 298 0848 E casales@megger.com Megger products are distributed in 146 countries worldwide. This instrument is manufactured in the United Kingdom. The company reserves the right to change the specification or design without prior notice. Megger is a registered trademark Part No.
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