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Features

Accurate and reliable, for trusted jewelry weighing. 320 g capacity, 0.001 g readability, 4.5 color touchscreen, FACT fully automatic internal adjustment, 3 interfaces, 8 built-in applications, overload protection, metal base

The Mettler Toledo JET303G/A Gold Balance is a high-precision weighing instrument engineered specifically for jewelry shops, pawnshops, and precious metal laboratory environments. Combining a robust solid metal base with a die-cast aluminum and ABS housing, this balance delivers high stability and exceptional performance that will not drift if accidentally bumped. It features a high-resolution 120 mm stainless steel weighing pan sheltered by a glass draft shield, ensuring highly accurate measurements free from environmental air interference.

Operation is streamlined via an integrated 4.5-inch color TFT touchscreen display that remains sharp and readable even under the bright glare of retail showroom lights. The balance features fully automatic internal calibration (FACT), adjusting itself continuously to maintain measurement integrity without manual operator intervention. With multiple connectivity configurations and 8 built-in diagnostic applications, it makes routine analytical weighing, totalization, and direct density calculations for gold purity testing straightforward.

Key Product Highlights

• FACT Calibration: Fully automatic internal calibration keeps your balance precise across varying ambient operational temperatures.
• Dual Unit View: Uniquely displays two preferred weight metrics simultaneously (e.g., viewing carats and grams at the same time).
• Robust Interfaces: Outfitted with 3 built-in connection ports (RS232, USB Host, and USB Device) to link peripheral auxiliary displays, PCs, or barcode scanners smoothly.
• Density Kit Compatibility: Supports under-balance weighing hooks and accessory kits to simplify gold purity evaluations automatically.
• Overload Protection: Advanced internal security systems prevent damage from accidental heavy loading on the weighing pan.

Specifications

Model	JET303G/A	JET603G/A	JET1003G/A
Capacity x Readability	320 g x 0.001 g (1 mg)	620 g x 0.001 g (1 mg)	1002 g x 0.001 g (1 mg)
Legal for Trade	NTEP #19-087A1 - Measurement Canada AM-6167
	Class II	Class II	Class I
	320 g x 0.001 g	620 g x 0.01 g	1002 g x 0.01 g
Repeatability (Typical)	0.7 mg
Minimum Weight (U=1%, k=2), typical	140 mg
Settling Time	1.5 seconds
Adjustment Type	Internal / FACT Fully Automatic ACT Fully automatic internal calibration keeps your balance precise across varying ambient operational temperatures.
User Interface	4.5-inch Color TFT Touchscreen
Weighing Pan Diameter	Ø 120 mm
Dimensions (HxWxD)	289 mm x 210 mm x 319 mm
Connectivity Ports	RS232, USB Device, USB Host

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