The tablet testing instrument PTB 311E is a dual force mode hardness tester. It can be used for either linear force or linear speed increase while tablet hardness is tested. It offers a multiple point validation procedure for the built-in digital load cell. The instrument is made in strict compliance with the EP <2.9.8> and USP <1217> Pharmacopoeia.

• Fully USP <1217> and EP <2.9.8> compliant
• Measure hardness, diameter (or length), width and thickness of tablets
• De-activate any measurement not required for a particular test
• Dual force mode instrument with linear speed increase and linear force increase modes
• Multiple point validation procedure built-in
• Programmable print-out of force increase curve
• Set to test tension strength of oblongs and caplets available

• Hardness testing range
• PTB 311E: 5.0 – 300.0 N ± 10 N
• PTB 311E-500: 10.0 – 500.0 N ± 50 N
• PTB 311E-800: 10.0 – 800.0 N ± 50 N
• Hardness accuracy: Better than ±1 N
• Hardness resolution: 0.1 N
• Thickness testing range: 2.00 – 45.00 mm
• Thickness accuracy: Better than ±0.05 mm
• Width testing range: 2.00 – 45.00 mm
• Width accuracy: Better than ±0.05 mm
• Diameter testing range: 2.00 – 45.00 mm
• Diameter accuracy: Better than ±0.05 mm
• Measuring units:
• Thickness, width and diameter selectable between millimeter (mm) and inches (IN);
• Hardness selectable between Newton (N), Kilopond (kp) and Strong Cobb (Sc)