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| - | {{ :wiki:121gw.jpg?nolink&200|}}====== EEVBlog 121GW Multimeter ====== | ||
| - | [[https://www.eevblog.com/product/121gw/|121GW Product Webpage]]\\ | ||
| - | {{ :wiki:manual-29-january-2019-1.pdf |121GW User's Manual (29.01.2019)}}\\ | ||
| - | {{ :wiki:121gw-eevblog-circuit-diagram.pdf |121GW Circuit Diagram}}\\ | ||
| - | {{ :wiki:revised-packet-format-blob-v2.pdf |121GW BLE Packet Protocol Format}}\\ | ||
| - | [[https://www.eevblog.com/product/121gw/#tab-lumia-tab-firmware|121GW Latest Firmware]]\\ | ||
| - | [[https://www.eevblog.com/product/121gw/#tab-lumia-tab-software|121GW PC Software]] | ||
| - | ===== Fuses ===== | ||
| - | |||
| - | [[https://www.eevblog.com/product/multimeter-fuse-pack/|121GW Multimeter Fuses]] | ||
| - | * HV110 11A 30kA 1000V HRC (10x38mm) | ||
| - | * HV620 400mA 10kA 1000V HRC (6x32mm) | ||
| - | |||
| - | |||
| - | ===== Features: ===== | ||
| - | |||
| - | * Bluetooth connectivity (multi-device capability) | ||
| - | * Open Source Cross Platform application software (Android + Windows, and more soon) | ||
| - | * 15V Diode Test Voltage (useful for Zeners + LED strings etc) | ||
| - | * VA Power measurement | ||
| - | * Low Burden™ voltage | ||
| - | * Unique burden voltage display | ||
| - | * Micro SD Card data logging + firmware updating | ||
| - | * Other major features include: | ||
| - | * Dual 50,000 count display with bargraph | ||
| - | * 0.05% + 5 Basic DCV Accuracy | ||
| - | * Auto-Hold measurement | ||
| - | * 600V CAT-III with independent UL 61010 certification by ETL | ||
| - | * Safe operation through HRC fuse + TVS + PTC + MOV + Diode Bridge protection | ||
| - | * AD8436 >100KHz True RMS | ||
| - | * 4 x AA battery powered with 500+ hr battery life | ||
| - | * Compact design – 84 × 165 × 59 mm (W × L × H) | ||
| - | * Hackable ST ARM Cortex M3 processor (S-LINK/V2 programmer interface inside) | ||
| - | * Hycon HY3131 chipset | ||
| - | * MAX4238 Low Offset Amplifier for current ranges | ||
| - | * SD Card firmware update | ||
| - | * Full Open Schematic available | ||
| - | * 8ppm ADR3412 voltage reference | ||
| - | |||
| - | The meter is manufactured by UEI Test Instruments, a reputable US based designer and manufacturer of high quality test gear. The design work was primarily done by UEI, but with a great deal of design input and direction from Dave. The meter is manufactured in South Korea. | ||
| - | |||
| - | NOTE: The meter may come with either Brymen (gold) probes or UEI (nickel) probes depending upon availability at the time. Both are high quality silicone rubber probes. | ||