Diesel smoke meter NHT-6 Product Features: ◆ split structure, measurement and control unit separate, easy to operate; ◆ large-screen LCD display, full Chinese interactive menu prompts; with opacity and optical absorption coefficient of two kinds reading, simple, easy and intuitive; ◆ has a free acceleration test and transient measurements and automatic processing of the test data and display the measurement results; ◆ warm-up time of 15 minutes, and automatic zero; ◆ measuring unit with Split (take style) technology to measure the exhaust of diesel vehicles. The use of "air curtain" technology to protect the optical system from contamination. ◆ testing room temperature control, can prevent condensation, and to avoid temperature changes affect the measurement accuracy; ◆ with engine oil temperature measurement probe; ◆ equipped with RS-232C serial interface to communicate with external computer; ◆ have the license plate number input function; ◆ instrument performance in line ISO11614 and GB3847-2005 requirements. ◆ Optional miniature thermal printer; ◆ can choose different types of speed measurement sensor or adapter; ◆ Optional car power inverter. Diesel smoke meter NHT-6 Technical parameters: ◆ Measuring range: opacity N: 0 ~ 99.99% light absorption coefficient k: 0 ~ 16.0m-1 speed: 300 to 9999 rev / min oil temperature: -50 ~ 120 ° C light absorption coefficient k: 0 ~ 16.0m-1 ◆ Resolution: opacity N: 0.1% ◆ Indication error: opacity N: ± 2.0% ◆ Power: AC220V ± 10% 50Hz ± 1Hz ◆ Weight: Control Unit: 5.5kg measurement unit: 6.5kg ◆ Dimensions: Control Unit: 370mm (width) × 280mm (depth) × 220mm (height) measurement unit: 410mm (width) × 215mm (depth) × 360mm ( high)