The KDZL-807A is a high-precision automatic interfacial tension meter based on the platinum ring method (du Noüy ring method) compliant with GB/T6541. It uses a fast-response electromagnetic force balance sensor for superior accuracy and linearity, with single-point calibration to eliminate multi-point setup and manual adjustments. The instrument displays real-time equivalent tension and current weight (doubling as an electronic balance) and includes automatic temperature compensation via an integrated temperature sensor. A 240×128 LCD with screen protection, 255 time-stamped data records, a built-in thermal printer, and optional RS232 connectivity ensure intuitive operation and efficient data management for industrial and laboratory use.

• Fast-response electromagnetic force balance sensor for high accuracy and linearity
• Single-point calibration, eliminating multi-point calibration and zero adjustment
• Real-time display of equivalent tension and current weight (usable as electronic balance)
• Automatic temperature compensation via integrated temperature detection circuit
• 240×128 dot-matrix LCD with screen protection and unmarked keys
• 255 time-stamped historical data records
• Built-in high-speed thermal printer with detachable printing function
• Optional RS232 interface for computer connection and data processing

 

• Model: KDZL-807A
• Measurement range: 0–200 mN/m
• Accuracy: 0.1% reading ±0.1 mN/m
• Resolution: 0.1 mN/m
• Sensitivity: 0.1 mN/m
• Power supply: AC 220 V +20% -10%, 50 Hz ±10%
• Power consumption: 20 W
• Operating temperature: 10–30°C (typical 25°C)
• Operating humidity: <85% RH
• Dimensions: 200 mm × 300 mm × 330 mm
• Weight: 6 kg