LRS-11B Series Single-Phase Portable Watt-Hour Meter testing equipment
I. Applications This device is suitable for verifying various electronic and induction type single-phase time-sharing watt-hour meter, single-phase multi-rate watt-hour meter, single-phase prepaid watt-hour meter and single-phase watt-hour meter, and it can perform the forward/backward active power verification.
II. Functions and characteristics *The housing made of special aluminum alloy material has the firm beautiful appearance and is easy to operate, light and convenient for transportation; *It has the multi quick protection system making the equipment more reliable, and the function of audible and visual alarm; * Equipped with exclusive keyboard, which can automatically provide normal point automatic verification during the manual meter verification, it is convenient and easy for operation; * Capable of performing fully automatic verification to the startup/shunt running/basic error/ standard deviation/8-hour and 24-hour variation of the watt-hour meter as per the requirements of regulations; * Capable of performing the frequency test and harmonic test and other effect tests to the watt-hour meter; * Adopt exclusive connecting box and has the automatic connecting function for open circuit; * Capable of automatically capturing mechanical meter black spot, and is convenient for the shunt running and startup test; * Adopt exclusive optic collector, which has the function of automatically collecting mechanic black spot and light-on signal of meter LED, and the optic head can automatically turn over, which makes meter convenient for removing and mounting; * Adopt exclusive pulse sampling interface, which has the high voltage isolated circuit, and can prevent the wrong switch-in of high voltage; * Capable of performing the meter running test as per the number of watt-hour or time or pulse; * Support the measurement of real time parameters, such as the power, voltage, current, phase, power factor and frequency etc; * Support various bar codes input; * Equipped with RS485, convenient for connecting with various imported and domestically made electronic watt-hour meters; * Support automatic detection of communication protocol; * The communication protocol complies with all stipulations of DL/T645-1997 and IEC1107, and the corresponding communication rules can be changed as per the requirements of users; * Number of mounted meters per device: 1~3 (Decided by user).
III. Other functions Adopting the special wiring and exclusiveEMCS2002 meter calibration system software, it can perform various tests to the single-phase electronic multi-function, multi-rate watt-hour meter without changing the wire, and it can test the following functions that can be combined at random to test or just single function, which is convenient and shortcut: * Daily timing error test; * Time interval switch error test; * Multi-function meter running test (comprehensive meter running error test); * Various communication test; * Meter address reading and setting; * Time interval and time zone setting; * GPS broadcasting timing; * Counter combined error test; * Constant verification; * Meter code reading and verification; * Verification and setting of various passwords and ciphers.
IV. Technical parameters 1. Power supply: ~220V/16¡À10%, 50HZ; 2. Equipment configuration: Class 0.2, class 0.1(for standard meter); 3. Voltage range: 220V; 4. Current range: (0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10, 25, 50, 100) A 5. Voltage, current adjusting range:0~120%, and adjusting fineness: 0.002%; 6. Voltage and current meter precision: 0.1%, phase precision: 0.2¡ã; frequency monitoring meter precision: 0.01HZ; 7. Phase adjusting range: 0~360¡ã, and adjusting fineness: 0. 01¡ã; 8. Frequency adjusting range: 45HZ~65; and adjusting fineness: 0. 001HZ; 9. Voltage circuit capacity: 15VA per meter; 10. Voltage circuit capacity: 1000VA (48 meter position) 500VA (8~24 meter position); 11. The stability of the output power is superior to 0.02%/2min, and the distortion factor of the current waveform is superior to 0.5%; 12. ED455G time reference Frequency: 1HZ, 500KHZ(TTL level); stability: 5¡Á10-9/day, and accuracy: 1¡Á10-7; 13. Number of mounted meters per device: 1¡«3.
LRS-11B Series Single-Phase Portable Watt-Hour Meter testing equipment
