Newest Design NHT-6 Auto Diesel Exhaust Emission Gas Analyzer
Opacimeter Opacity Testing Equipment NHT-6
NHT6 Opacimeter is a portable intellectual instrument used to test the visible contaminants in emissions (exhaust smoke) from the compression combustion (diesel) engine. With advanced test technology and excellent parts and components from abroad, it is applicable for environmental protection departments, vehicle test stations, automotive manufacturers and workshops.
Key Features & Advantages
Split structure, separated measuring unit and control unit for easy operation.
Large LCD screen, Chinese or English interactive menu, with opacity reading and light absorption coefficient reading, simple, direct and convenient operation.
With functions of free acceleration test and measurement of transients, automatic process of test data and display of measuring results.
With functions of License Plate Number entry, save, and data view.
15 minutes warm-up time, automatic zero reset.
With adoption of advanced partial flow technology, measuring unit tests smoke emissions of diesel-powered vehicles directly. "Scavenge air curtain" technology prevents the optical system from being polluted. With constant temperature control in the sample cell, it can avoid condensation and influence of accuracy due to change of temperature.
Equipped with oil temperature measurement probe.
Equipped with RS-232C digital serial interface for communication with external computer.
The performance meets the requirements of ISO11614 and GB3847-2005.
Options and Accessories (Pay Extra)
Micro printer.
Various RPM measurement sensors or adaptors.
DC12V vehicle power inverter.
Main Technical Specifications
Measuring Range
Opacity:0 ~ 99.99%
Light Absorption Coefficient:0 ~ 16.0 m-1
Revolving Speed:300 ~ 9999 rpm
Oil Temperature:-50 ~ 120 °C
Resolution & Accuracy
Opacity Resolution:0.1%
Opacity (uncorrected):±20% (abs.)
Revolving Speed (piezoelectric):±1.0% (rel.)
Oil Temperature:±2 °C (abs.)
Optical & Sampling Specifications
Effective Length of Optical Path:215 mm
Equivalent Length of Optical Path:430 mm
Length of Sampling Probe:2.5 m
Power Consumption:200 W
Power Supply:AC220V ±10% 50Hz ±1Hz
Dimensions & Weight
Control Unit Weight:5.5 kg (including printer)
Measuring Unit Weight:6.5 kg
Control Unit Size (W*D*H):370mm * 280mm * 220mm
Measuring Unit Size (W*D*H):410mm * 215mm * 360mm
Detailed Product Gallery
Frequently Asked Questions (FAQ)
Q1: What is the primary purpose of the NHT-6 Opacimeter?
The NHT-6 Opacimeter is designed to detect and measure visible contaminants and exhaust smoke emissions from compression combustion (diesel) engines. It is widely used by environmental protection departments, testing stations, workshops, and vehicle manufacturers.
Q2: How does the "Scavenge air curtain" technology protect the device?
This advanced technology creates an air barrier that prevents soot and exhaust particulates from coming into contact with and polluting the optical systems, ensuring long-term measurement accuracy and stability.
Q3: Does the NHT-6 support external data transmission?
Yes. The device is equipped with an RS-232C digital serial interface, which allows simple communication and data transfer to external computers or system networks.
Q4: What is the required warm-up time before operation?
The instrument requires a 15-minute warm-up time, after which it automatically resets to zero, ensuring it is ready for highly precise measurements.
Q5: Which regulatory standards does the NHT-6 comply with?
The performance and specifications of the NHT-6 meet the standard requirements of ISO11614 and GB3847-2005.
Q6: Can this unit measure the oil temperature of the vehicle?
Yes, it comes equipped with a dedicated oil temperature measurement probe capable of measuring temperatures ranging from -50°C to 120°C.
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