AVO INTERNATIONAL MEGGER BMM2500 Series Premium Insulation Multimeters with Result Storage The new Megger BMM2500 series of Insulation Multimeters utilise advanced microprocessor technology to provide a host of new features not normally associated with standard insulation and continuity testers. The instruments utilise a large backlit LCD display incorporating a patented analogue arc which incorporates the benefits of electronic analogue indication and unambiguous digital readings. The analogue scale provides rapid identification of insulation condition highlighting any variable readings and is complemented by the precision and simplicity of the digital display. The BMM2500 series provide the ideal mix of features for the busy electrical contractor requiring the ultimate in performance and functionality combined with speed of operation and efficiency provided by the downloading of data. When combined with software certification the system provides a highly professional image for the contractor combined with the ever Fully Complies with the requirements of BS 7671,HD384, IEC 364and EN61557 Insulation measurement up to 200G (BMM2580) Live Circuit Warning 200mA Continuity Range Voltage, current and k resistance measurement Backlight mV Transducer inputs Result storage and Data Logging PowerSuite™Compatible RS232 output Download Manager Software included Direct Printer Output Remote control switched probe Waterproof and Dustproof to IP54 increasing need for tracability of test results. The BMM2580 offers all the features of the 2500 but with the addition of 100V and 50V insulation ranges and a 10uF capacitance range. These additional features make the instrument ideally suited for applications in the telecom industry. Both instruments offer comprehensive data storage options with individual test results being stored against user selectable distribution board and circuit references. Alternatively data logging may be selected and up to 300 consecutive measurements of any chosen parameter may be made at a selectable time interval. Data storage is contained within non-volatile memory, (NVM), ensuring that test results are not lost in the event of battery failure or removal. Once stored, results may be recalled to the display, printed to an external serial printer or downloaded to suitable software. AVO Download Manager™ for Windows is included enabling language changes to be performed, along with the simple download of stored data from the instrument into comma separated variable files. These files can be maintained as a record, used for manually completing certificates or exported to other applications such as spreadsheets and word processor documents. Where creation of certificates of test is required both instruments are fully compatible with AVO PowerSuite for Windows and AVO NICEone. (for N.I.C.E.I.C. Certification alone) Both instruments feature special mV ranges enabling connection of a wide variety of mV output transducers. Such devices extend the range of possible measurements almost endlessly including such items as temperature probes, airspeed indicators and high current clampmeters thus extending the scope of the BMM2500 series into key industries such as Heating and ventilation (HVAC), and Servicing. APPLICATIONS Electrical Contractors The BMM2500 series insulation multimeters has a wide variety of applications and is ideal for testing electrical installations to both the British and the International Wiring Regulations. Each instrument conforms to the requirements of Table 71A in BS7671 and to VDE 0413 parts 1 and 4, HD 384, IEC 364 and EN 61557. In addition the range meets the requirements of BSEN 61010-1 for safe connection to a 440V Installation Category III supply. The BMM2500 series Insulation Multimeters are designed to provide the electrical contractor with the ultimate tool for testing/commissioning fixed installations. The on-board storage facilities enable each test result to be assigned to particular distribution board and circuit references. Data may be later recalled to the display for manual completion of certificates of test or for maximum performance downloaded to certification software such as AVO PowerSuite for Windows or NICEone to create a seamless recording system with the tracability necessary for safety critical applications. The inclusion of an intelligent backlight ensures that the display can be clearly seen even where the distribution board is located in a dark cupboard but without ruining battery life. Three insulation test voltages of 250,500 and 1000V are provided to ensure that the correct test voltage for the installation under test is always available. The 500 V range is suitable for the majority of testing on circuits with a nominal voltage up to 500V. The 250V insulation range is necessary where low voltage circuits supplied by an isolating transformer are tested whilst the 1000V range is used for circuits with a nominal voltage exceeding 500V and below 1000V. An additional leakage facility allows any insulation measurement to be displayed in terms of microampere leakage currents. The instruments have a 200mA continuity range which is ideal for testing the continuity of ring final circuit conductors, primary bonding of services and of supplementary bonding conductors. The zero offset adjustment allows the resistance of the test leads to be ignored so the measurement shown is due to the conductors under test only. The feature set of the BMM2500 series extends to include measurement ranges for voltage, current, resistance enabling one instrument to be used where normally a separate multimeter would be called for. To aid operation in awkward situations where the instrument cannot be held in one hand the MEGGER SP1 switched probe, (supplied as standard), may be connected enabling control of the instrument test button directly from the probe. In addition to the electrical features above the rugged design of the BMM2500 range ensures that they can withstand the everyday handling, transportation and storage with other tools in the contractors toolbag and the BMM2500 is supplied with a three year manufacturer’s warranty. Servicing and HVAC The BMM2500 series are ideal tools for the service industry since they offer a comprehensive range of features addressing the requirements of the service engineer in a single unit. The insulation ranges are useful for establishing the integrity of the internal parts such as motors, timers and transformers whilst the continuity range can verify the correct earth bonding of the case metalwork and checking the operation of switches etc. The multimeter functions of Voltage, Current and Resistance find a multitude of uses in the measurement of component parts within consumer appliances such as the verification of correct mains supplies timer switching characteristics and component level measurements on control PCB’s. The unique mV transducer input ranges enable the BMM2500 series to interface to a vast range of transducers for measurement of the various parameters necessary during servicing and in the commissioning and verification of HVAC systems. Temperature measurement is one of the most important additions for the service industry enabling the correct operation of items such as oven thermostats or the measurement of heated air temperature and humidity to be made. To further assist in servicing situations higher currents, (up to 10A ac), may be measured by connecting the optional MEGGER MCC10 current clamp. This enables measurements of appliance element/motor currents etc to be made quickly and safety without interrupting the conductors. Data Logging Applications The advanced data logging facilities of the BMM2500 series enable a log of measured value at regular presettable intervals for any of the measured parameters e.g. , voltage, capacitance, insulation, resistance. etc In the case of insulation resistance the logging facility enables calculations of Dielectric Absorption Ratios and polarisation Index. The polarisation index is defined as the ratio between the insulation resistance values after 1 minute and 10 minutes. This calculation is often useful for determining insulation quality without the need for temperature compensation or necessary referral to historic test data. Specifications (All quoted accuracy’s are at +20 °C.) Insulation Ranges Test Voltages: 250, 500, 1000V (BMM2500) Test Voltages: 50, 100, 250, 500, 1000V (BMM2580) Measuring Range: BMM 2500 0,01 MΩ to 20GΩ BMM 2580 0,01 MΩ to 200GΩ (0 - 100 GΩ on analogue scale ). EN61157 Operating range 0,10Ω to 99,9MΩ Test voltage accuracy: +15% maximum on open circuit Short circuit current: < 2 mA Test Current on load: 1mA at min. pass value of insulation specified in BS7671,HD384 and IEC 364, 2mA max. Accuracy: ± 2% ± 2 digits Auto-Discharge facility safely discharges the connected circuit after a test Live Circuit Warning Provides automatic warning when connected to live circuits. Threshold 25V Buzzer: Operates continuously at less than ≈5 Ω Resistance Measuring Range: 0,01 kΩ to 9,99MΩ (0 to 100 MΩ on analogue scale) with Auto Ranging or Range 0,1mA to 10mA d.c. or a.c. (50/60 Hz) ± 2% ±5 digits 10mA to 500mA a.c. (16-460 Hz) ± 5% ±3 digit Lock Facility. Accuracy: ± 3% ± 2 digits Open circuit voltage: 5 V ±1 V Frequency Measuring range: 16Hz to 460Hz Accuracy: ±1% ± 1digit Voltage Measuring Range: ±1V to ±500V(0 to 1000V on analogue scale) Backlight User selectable LED backlight with auto turn off to save battery life Accuracy: 0 to 500 V d.c. or a.c. (50/60 Hz) ± 2% ±3 digit 0 to 500 V 400 Hz a.c. ± 5% ±3 digits Millivolts Measuring Range: ±0,1mV to 1999mV (0 to 1000mV on analogue scale) Accuracy: 10mV to 1999mV d.c. or a.c. (50/60 Hz) ± 2% ±3 digit 0,1mV to 10mV a.c.(16-460 Hz) 5% ±7 digits Accuracy: ± 2% ± 2 digits Open circuit voltage: 5 V ± 1V Test current: 210 mA ± 10 mA (0 - 2 Ω) Zero offset at probe tips: 0,10 Ω typical Lead resistance zeroing: Up to 9,99 Ω Test Result Storage Up to 99 Distribution Board References each with up to 99 Circuit References may be specified. Test Results may be stored against any circuit and distribution board combination. Data may be recalled to the display, printed or downloaded to AVO PowerSuite for Windows or AVO NICEone software Communications RS232 9 pin male D connector Baud rate 9600 Printer Output Prints test results, distribution board and circuit details to external serial printer. 10mV to 1999mV a.c. (16-460 Hz) ± 5% ±3 digit EN61577 Operating Range 0,10Ω to 99,9Ω 0,1mA to 10mA a.c. (16-460 Hz) ± 5% ±7 digits Short circuit current: 25 µA ± 5 µA 0,1mV to 10mV d.c. or a.c.(50/60 Hz) ± 2% ±5 digits Continuity Measuring Range: 0,01 Ω to 99,9 Ω (0 to 10 Ω on analogue scale) Accuracy: 10mA to 500mA d.c. or a.c. (50/60 Hz) ± 2% ±3 digit ± d.c. millivolts zeroing Up to 9,9mV Two selectable language options Language 2 may be changed using AVO Download Manager Software supplied as standard. Transducer Compatibility Virtually any mV output transducer may be connected to facilitate measurements of other parameters such as temperature, humidity etc. A unique transducer offset adjustment facility is included. Data Logging The instruments may be set to continuously record any one of the measurable parameters e.g. voltage, insulation resistance etc. The Logging interval may also be adjusted to suit the application. Capacitance (BMM2580) Measuring Range: 0,1nF to 9,99µF Accuracy: ±3% ± 2 digits ± 0,2nF uF zeroing: Up to 10nF Logging Interval 10s to 1990s in 10s increments Milli-amps Measuring Range: 0,1mA to 500mA (0 to 1000mA on analogue scale) Number of samples Approximately 300 Accuracy As above for each parameter Power Supply Battery Type: 6x1,5V Alkaline cells IEC LR6 type 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures:- Battery Life: Typically 2100 , 5 second 1kV tests Part 1 - General requirements Part 2 - Insulation resistance Part 4 - Resistance of earth connection and equi-potential bonding Part 10 – Combined Measuring Equipment. Auto Shut Off The BMM 2500 series feature an auto shut off facility which turns the instrument off after approximately 5 minutes, (12 minutes on insulation ranges), to conserve battery life Safety The BMM2500 series complies with the latest international directives concerning safety and electromagnetic compatibility The instruments meet the requirements for double insulation to IEC 61010-1 (1995), EN 61010-1 (1995) Safety Requirements for electrical equipment for measurement, control, and laboratory use. Category III**, 300 Volts phase to earth (ground) and 440 Volts phase to phase, without the need for separately fused test leads. If required, fused test leads are available as an optional accessory. FUSE 500mA (F) 500V , 32x 6mm Ceramic HBC 10kA minimum. Dimensions Length 220mm (8.66 inches) Depth: 110mm (4.33 inches) Height: 45mm (1.77 inches) 742g (1.63lbs) Weight (including batteries) Cleaning Wipe with a clean cloth damped with soapy water or Isopropyl Alcohol(IPA) Electromagnetic Compatibility RF Susceptibility The BMM 2500 series comply with IEC 61326 . RF Emission The BMM 2500 series comply with IEC 61326 Environmental Conditions Operating range -5 to +40 °C Operating humidity 90% RH at 40 °C max. Storage temperature range -25 to +65 °C Calibration Temperature +20 °C ** Relates to the transient overvoltages likely to be met in fixed wiring installations. Maximum altitude 2000 m Complies with the following parts of EN 61557, Electrical safety in low voltage systems up to Dust and water protection IP54 Temperature coefficient <0,1% per °C ORDERING INFORMATION Item Order Code. 250/500V/1000V Insulation Multimeter …… BMM2500 50/100/250/500/1000V Insulation Multimeter BMM2580 Included Accessories User Guide Physical Specifications Part Number Depends on language Test lead set Test-&-carry case Switched probe SP1 AVO Download Manager Software on CD 6220-437 6420-123 6220-606 6111-442 Optional: Accessories Fused lead set, FPK8 Test Record Cards (Pack of 20) MCC10 10A Current Clamp Service Manual BMM’s Computer Serial Lead Printer Serial Lead Part Number 6111-218 6111-216 6111-290 6172-458 25955-025 25955-026 Optional Software AVO PowerSuite for Windows See supplier (Comprehensive Electrical Testing Software) AVO NICEone 6111-403 (Certification software for producing NICEIC certificates) Publications: ‘A Stitch in Time’ (Video) Electrical Guide Testing Electrical Installations (Book) AVTM21-P8 6172-129 6231-605 The Company reserves the right to change the specification or design without prior notice. AVO and MEGGER are the Registered Trade Marks of AVO INTERNATIONAL LIMITED.