Precision Lab Digital Weighing Scale 300g 0.01g Backlit LCD Draft Shield Balance

The Precision Lab Digital Weighing Scale 300g 0.01g Backlit LCD Draft Shield Balance is engineered for buyers who cannot afford drifting readings, frequent recalibration or downtime in the middle of a shift. Each unit is assembled around a 120mm diameter stainless steel pan with glass draft shield, driven by 24 bit analogue to digital conversion and finished with die cast aluminum base with glass wind shield. Rated at 300g with a 0.01g division and 1/30,000 external resolution, linearity +/-0.02g, the scale resolves small weight differences clearly on a LCD with backlight and percentage weighing mode while remaining simple enough for a new operator to learn in minutes.

Every instrument leaves our factory after a four point linearity check, a 24 hour burn in test and a full load stability run. Buyers receive a serialised calibration record with the shipment, so incoming inspection and later audits are straightforward.

• Weighing Performance: 300g capacity with a 0.01g division and 1/30,000 external resolution, linearity +/-0.02g gives repeatable results across the whole range.
• Platform Construction: a 120mm diameter stainless steel pan with glass draft shield resists dents, corrosion and daily cleaning without losing flatness.
• Display and Interface: LCD with backlight and percentage weighing mode combined with RS232 and USB data output connects the scale to existing print, ERP or control systems.
• Power System: AC adapter with 9V backup battery keeps the unit running through power cuts and long trading days.
• Housing and Protection: die cast aluminum base with glass wind shield rated IP40 stands up to dust, spills and washdown routines.
• Draft Shield Isolation: a three side sliding glass shield blocks air currents that would otherwise disturb 0.01g readings.
• Multi Mode Weighing: grams, carats, ounces, percentage and piece counting modes cover lab and workshop routines.

Production runs on eight dedicated lines inside a 12,000 square metre facility. Each stage is documented with a work instruction and a first article inspection, so a unit assembled in March matches one assembled in November.

1. Incoming Material Inspection: stainless steel sheets, ABS pellets and load cells are checked against certificates before release to the line.
2. Sheet Metal and Platform Forming: laser cutting, bending and welding produce platform frames within 0.3mm flatness tolerance.
3. Load Cell Assembly and Sealing: strain gauges are bonded, temperature compensated and sealed before mechanical fitting to the platform.
4. Electronics SMT and Programming: boards pass through SMT, in circuit testing and firmware programming with a unique serial number.
5. Calibration: every unit is calibrated against OIML class M1 weights at zero, half load and full load.
6. Burn In and Ageing: a 24 hour power cycle test screens early component failures before packing.
7. Final Inspection and Packing: visual, functional and packaging checks are signed off by a QC inspector with photo evidence.

Our factory has manufactured weighing instruments for eighteen years and currently ships to more than forty countries. The plant runs 8 production lines with 120 staff, including 15 engineers working on load cell design, firmware and enclosure tooling. Annual output reaches 300,000 units, and the quality system is certified to ISO 9001:2015 with CE and OIML test reports available for each model family.

• In House Load Cell Production: strain gauge bonding, compensation and sealing happen on site, which shortens lead times and controls cost.
• Tooling and Mould Shop: in house mould making supports rapid OEM housing changes without external tooling queues.
• Engineering Support: firmware customisation, protocol mapping and interface boards are handled by the internal engineering team.
• Export Documentation: CE declarations, calibration certificates and test reports are prepared with every shipment.

Laboratory benches, quality control rooms and jewellery workshops rely on repeatable milligram level readings. This precision lab digital weighing scale combines a die cast base, a full glass draft shield and temperature compensated electronics to hold stable readings in draughty rooms.

Because the design separates the weighing platform from the indicator housing, the same instrument family can be installed on a counter, a bench or a mobile trolley. Accessories such as printer cables, relay boxes and additional platforms are available from stock for buyers who standardise on one model across several sites.

Double carton with moulded foam, calibration certificate inside each box. Cartons are drop tested from 80cm and marked with model, quantity and net weight for warehouse handling. Each unit carries a 12 month warranty covering the load cell, display and mainboard, and spare parts are stocked for seven years after the model is discontinued. Orders are inspected before shipment and buyers are welcome to arrange third party inspection at our plant.

Q1: What is the minimum order quantity for this model?

A: The MOQ is 30 Pieces. For trial orders we can ship fewer units at a small surcharge so buyers can test the market before committing to a full container.

Q2: Can the housing be printed with our own brand?

A: Yes. Silk screen printing, laser marking and custom color molding are available. Artwork in AI or PDF format is required, and the tooling setup is free for orders above 200 units.

Q3: How long is production and delivery?

A: 10 working days for stock units, 25-30 days for OEM production. Shipping is arranged by sea, air or express according to buyer preference, with FOB, CIF and DDP terms all supported.

Q4: What calibration documents are provided?

A: Each unit ships with a serialised calibration certificate traceable to OIML class M1 weights, plus a test report showing zero, half load and full load error values.

Q5: How is payment handled?

A: T/T with 30 percent deposit and 70 percent before shipment is standard. L/C at sight, Western Union and Trade Assurance orders are also accepted for established buyers.

Q6: What happens if a unit fails in the field?

A: The 12 month warranty covers the load cell, display and mainboard. Replacement boards and load cells are shipped by express within 48 hours of a confirmed fault report, and our engineers provide remote diagnosis over video call.