M K Enterprises

The Essae AX Series is a precision balance line designed for jewelry, laboratory, textile, research, and industrial applications, offering high accuracy and reliability  .
The AX‑620G model is specially tailored for jewelry weighment, supporting units like grams, carat, tola, and ounce with gram as default  .

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Key Specifications
FeatureDetails
Max Capacity620 g
Readability0.001 g (1 mg)
Display Resolution620,000 counts
Pan Diameter110 mm
Draft ShieldYes (to prevent air currents)
Weight SensorElectro-Magnetic Force Restoration (EMFRT)
Display TypeWhite LED, 14 mm height
UnitsGrams (default), Carat, Tola, Ounce
Power Supply230 V AC → 9.5 V DC, max 11 W (50 Hz ±10%)
Battery OptionLithium-ion (7.4 V/2.2 Ah), up to 6 h backup
Data StorageUp to 1000 weight records
InterfacesRS-232 for printer/PC connection
Print OptionsSerial print formats, jewelry tag label, real-time date (RTC)
CalibrationSoftware (external weight)
Tare RangeFull capacity
Repeatability±1 d, Linearity ±2 d
Operating Temp.10 C to 40 C
Dimensions190 × 275 × 96 mm
**Weight (Balance Only)**2–2.3 kg
CertificationsLegal Metrology (India) compliant; calibration certificate available 

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Notable Features
High Precision: With 1 mg readability and EMFRT sensor, the AX‑620G ensures highly accurate and repeatable measurements  .
Multi-unit Support: Ideal for jewelry weighing (grams, carat, tola, ounce)  .
Extended Battery Life: Optional lithium-ion battery enables up to 6 hours of portable operation  .
Data and Print Integration: Capable of real-time printing with serial tags, date stamps, and storing up to 1000 entries  .
Compact & Robust: Small footprint and draft shield make it easy to use in dusty or busy environments, while meeting compliance standards for legal metrology  .

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Applications
The AX‑620G is widely used in:
Jewelry shops and hallmarking
Gemstone and bullion weighing
Labs requiring high accuracy (small sample weights)
Textile measurements using conversion factors like yarn, roving, etc.