Gopal Electronics

GOPAL ELECTRONICS

Digital Iron Loss Tester DW-21

¨ 3 years carry in warranty

¨ Better accuracy then ever

¨ Microcontroller base design

¨ Pure sinusoidal source and measure

¨ Long terms stability and accuracy maintain

¨ Password protected calibration

¨ 24 feather touch Keys for easy operation

¨ Digital setting for all data (Hz,B,Th,Dn etc.)

¨ Direct key to enter three usual induction

¨ 0 x 4 character LCD display

¨ Direct readings of W/Kg & W/lb

¨ Connector type low loss probe

¨ Three mode for easy & accurate operation

¨ Last setting save in nonvolatile memory

¨ Standard & big size of sample possible to test

¨ Self demagnetizing process

¨ User-friendly operation & portable size

This is most comfortable Instrument to test electrical steel sheet at site. Due to advance digital technology it became feasible to make it portable and light weight tool, for testing of CRGO, CRNO , CRNGO and semi process sheet. While measuring iron loss (Watt/Kg), standard size of 30 x 305 mm single strip to be tested, and more accuracy required more sample. If user want to test or compare samples than big size of sheet can be tested. It is also used to find rolling direction of CRGO sheet by using user mode function. This handy tool is very useful for manufacturer of Electrical items like Transformer, Motor, Stamping, Lamination and core.

OPERATION THEORY

DW-21 is provided with a stroboscopic probe when placed on specimen closes the magnetic path between probe and specimen. Probe has two coils one is primary and second is secondary (like transformer). When power applied to primary coil and detected by secondary coil appropriate to specimen data and measure voltage, current and power. Then measured data calculated by microcontroller appropriate to specimen's data (core area and weight) and directly displayed on LCD Watt/Kg and Watt/lb.

Three modes are provided weight mode, dimension mode, and user mode. User have to set the input data and then press start key. Display will appear watt/kg and watt/lb simultaneously.

Introduction