LRS-1124 Series Single-Phase Multi-Function Watt-Hour Meter testing equipment
I. Applications
This system 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 forward/backward active power verification.
II. Technical parameters
1. Power supply: ~220V/16¡À10%, 50HZ; 2. Equipment configuration: If the configuration is of class 0.1, the class of standard meter is 0.05; and if the configuration is of class 0.2, the class of standard meter is 0.1; 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 and current adjusting range: 0~120%, and adjusting fineness: 0.002%; 6. Voltage and current meter precision: 0.1%; phase precision: 0.2¡ã; and 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 positions) 500VA (8~24 meter positions) 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; accuracy: 1¡Á10-7; 13. Number of the mounted meter per system: 24 meter positions.
III. Functions and characteristics
*The housing made of exclusive aluminum alloy material has firm and 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, as well as convenient and easy for operation; *Support fully automatic verification of the startup/shunt running, basic error, standard deviation, and 8-hour and 24-hour variation of the watt-hour meter as per the requirements of regulations; * Support 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; *Support automatic collection of mechanical meter black spot, and convenient for the shunt running and startup test; * Adopt exclusive optic collector with the function of automatic collection of the mechanic black spot and light-on signal of meter LED; * Adopt exclusive pulse sampling interface with high voltage isolated circuit, and can prevent wrong switch-in of high voltage; *Support meter running test as per the numbers 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 the automatic detection of communication protocol. * The communication protocol complies with all stipulations of DL/T645-1997 and IEC1107, and the corresponding rules can be changed as per the requirements of users. *Number of meter£º6~48 (Decided by user).
IV. Other functions
Adopting special wiring and exclusive EMCS2004 meter calibration system software, it supports various tests of the single-phase electronic multi-function, multi-rate watt-hour meter without changing the wire. This product can test the following functions that can be combined at random or used separately, so it is convenient and easy for operation. *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; *Reading the data in the meter at random; * Meter code reading and verification; *Verification and setting of various passwords and ciphers.
LRS-1124 Series Single-Phase Multi-Function Watt-Hour Meter testing equipment
