■ Product overview

The VS-912 optical digital multimeter is a handheld optical digital message analysis and test instrument developed in the IEC61850 standard and widely used in intelligent substations. It can be used to protect measurement and control devices, intelligent terminals, merging units, transformers and other equipment. Quick test. It integrates high-precision measurement and a variety of test functions, and adopts the technology of combining touch screen and buttons. It is an indispensable tool for the installation, commissioning, operation and maintenance of digital intelligent substations.

■ Technical parameters

▲ Optical fiber Ethernet port

       3 pairs ×100/1000M, LC, multimode, 1310nm or 850nm

       Support protocol: IEC61850-9-1/2/LE, Goose, MMS, IEEE-1588

       Transmission dispersion: <0.1μs

       Receiving time stamp accuracy: <25ns

       1588 Time synchronization accuracy: <80ns

▲ Optical fiber serial port

       1 pair × (2~20Mbits/s), ST, multi-mode, 850nm

       Support agreement: IEC60044-7/8 FT3

       Transmission mode: Man code, asynchronous serial port

       Transmission dispersion: <0.1μs

       Receiving time stamp accuracy: <25ns

▲ Synchronous interface

       1, ST, multi-mode, 850nm, support IRIG-B/PPS

       Time synchronization accuracy: <1μs

▲ One electrical Ethernet port, RJ-45, 100/1000M, for external connection with PC and MMS

▲ 1 USB interface, support USB storage device access, used for SCD import and test result export

▲ 2 switching inputs, 10-250VDC or empty contact, automatic identification, no polarity

▲ Switch output

       2 way, drive out quickly

       AC and DC breaking capacity: 0.5A, 250V

       Quick response time: <10μs

▲ Screen

       5.7’ Multi-touch capacitive screen

       Resolution: 640×480

▲ Battery

       Battery type: rechargeable lithium battery

       Battery capacity: 11000mAh

       Standby time: >400 hours

       Battery life: >6 hours

▲ Size 250mm×140mm×44mm