Gems & Jewellery Balances

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  • Carat Scales (0.001g - 50g)

Carat Scales High Resolution loadcell based 1mg accuracy Balance (0.001 g - 50 g)


Contech has various options for the Gem & Jewellery Industries – Carat Balances, Gold Balances & Silver Scales. Models include High Precision Balances incorporating Electro Magnetic Force Compensation Technology for Diamond, Precious Stones & Gold & also economy models based on Loadcell technology for less precision weighing in case of semi precious stones and silver weighing.


Carat Scales High Resolution loadcell based 1mg accuracy Balance (0.001 g - 50 g)

  • Incorporate high quality loadcells.
  • Compact, Light weight and portable.
  • Inbuilt Battery Charger.
  • Auto power off function.
  • Multiple weighing units, gram & carat.
  • RS-232 bi directional interface.
  • Power saving mode.
  • Overload and shockload protection.
  • Bright Red LED Display/LCD Display with white backlite.
  • High bright green LED Display (Optional).
  • Battery Backup (Optional).
  • Additional Display (Optional).
  • Breeze shield.

Specifications :

Model CTL-20 CTL-50
Capacity 20g 50g
Readability 0.001 g 0.001g
Repeatability (+/-) 0.001g 0.001g
Linearity (+/-) 0.001g 0.002g
Pan Size 50 mm dia 50 mm dia

Taring Range : Up to full capacity

Response time : 3-5 secs

Power Req : 90-250V, 50/60Hz, 10 Watt

Operating Temperature : 10 to 45°C


Our Products Range

Laboratory Balances : Semi Micro Balances (CAI Series) | Analytical Balances (CAS & CAI Series) | High Precision Balances (CAH Series) | Precision Balances (CA Series) | Precision Balances (CAH Series) | Precision Balances (CA Series) |Industrial Precision Balances (0.1g - 10Kg) | density Balance (0.1mg - 10 Kg) | Flameproof Balances (0.1mg - 6Kg) |
Moisture Balances
Gem and Jewellery Balances : Pocket Scales (0.001 g - 200 g)| Carat Scales (0.001 g - 50 g) | Gold Scales (0.01 g - 600 g) | Silver Scales (0.1 g - 15 kg) |
Supermarket Scales : Retail Scale (1 g - 35 kg) | Price Computing Scales (1 g - 35 kg) |
Health Scales : Adult Scales (100 g - 150 kg) | Kitchen Scales (0.1 g - 5 kg) | Baby Weighing Scales (5g - 20 kg) |
Industrial scales : Tabletop Scales (0.5 g - 35 kg)| Piece Counting Scales | Waterproof Scales (0.1 g - 6 kg) | Waterproof Bench Scales (0.1 g - 60 kg) | Pallet Scales (200 g - 2 ton) | Platform Scales (200g to 10ton) | Floor Scales (200g to 10ton) | Low Profile Stainles Steel Floor Scales (100g - 2ton) |
Crane Scales : Standard Crane Scales | Crane Scales with Wireless Indicator | Crane Scales with Heat Insulating Shield | Crane Scales with Heat Insulating Shield & Wireless Indicator | Crane Scales Wireless Transmission High-temperature thermal insulation |
Weighing Indicators : Universal Indicators| Batch Weighing Indicators | Flameproof Indicators | Stainless Steel Indicators | Wireless Indicator |
Scales for Special Applications : Milk Bowl Weighing System (100 g - 500 kg) | Platform Scales with Ramp and Rollers | Static Check Weighing Systems | Customised Weighing Systems |
Balance Accessories : Auxilary Display Attached To The Balance On The Pole | Auxiliary Display (remote Wired) | Switch Mode Power Supply (SMPS) | Battery Backup | Breeze Shield | Mini Printer | | Motorized Calibration | Flameproof Junction Box | Standard Weights |
Force Testing Instruments : Digital Force Measuring Guage | Bottle-Cap-Torque-Tester | Spring Testing Instruments |
Electro Chemical Instruments : Multiparameter Meter | Lab pH Meter, Precision | Conductivity Meters | Dissolved-Oxygen-Meter | ORP Meter | Dual-parameter-meter | Electrodes | Accessories |
Sample Preparation Instruments : Magnetic Stirrer CMS -01 | Magnetic Stirrer CMS-02 | Magnetic Stirrer CMS-04 | Magnetic Stirrer CMS-06 | Magnetic Stirrer with Heating 280degree C | Magnetic Stirrer with Heating 340degree C | Magnetic Stirrer CMS-04H | Magnetic Stirrer CMS-06H | Multi Station Magnetic Stirrer with Heating | Orbital Shaker | Rocking Shaker | 3D Shaker | Digital Tube Roller | Digital Rotator 1st stage | Digital Rotator 2nd stage |
Optical Instruments : Digital Polarimeters Model : CDP-001 | Digital Abbe Refractometer Model : CAR-02 | Digital Melting Point Apparatus Model : CDMP-300 |
Gold Purity Checking Instruments : Gas Proportional XRF Detector CGX-101 | Silicon pin XRF Detector CGX-102 | Silicon Drift Detectors CGX-103 | Handheld Detector 104 | Gold Purity Checking Balances |