Panyu district hong success signing power cable smoke density tester - order no. 20120210001
KP8007 cable smoke density tester
The production technical requirements:
In line with the GB/T17651.1 ~ 2, IEC61034-1 ~ 2 under certain conditions the cable combustion smoke density determination ". Used for determination of cable and cable in certain conditions
The release of smoke concentration at the time of burning.
The characteristics,
It involves the mechanical, optical, electronic three aspects of professional knowledge, is the machine products, photoelectric integration has advantages of reasonable structure, stable performance, easy operation;
WINDOWS XP operating interface, LabVIEW style, perfect security mechanism. During testing real-time display measurement results and dynamically draw perfect curve, the data can be
With permanent and read and print output, can be directly printed statements.
Second, the principle of
Cable or fiber under certain conditions of combustion smoke density measuring system is composed of light source, silicon photocell of receiver and the computer system. Light source of light by 3 m x 3 m
X 3 m smoke density of the laboratory, in the light source to the opposite wall with a diameter of 1.5 m + 0.1 m uniform beam, the installation of the photocell detection in the center of the beam from the light source
The beam intensity. When the combustion chamber due to generate a lot of smoke when burning cable or optical cable, the smoke of photoelectric absorption, achieve the silicon photocell beam intensity is abate,
Through the computer system for data processing, will be able to calculate the relative to the initial 100% with linear response light transmittance of It.
Second, the design of the combustion chamber
Take for the customer to choose one of two ways: the first USES the brick wall, providing design, send professional engineer on-site construction guidance; The second kind of solid with suitable materials
Decide on the Angle bracket, constitute the whole cube combustion chamber.
Three, equipment
1, the combustion chamber: size: 3 m x 3 m x 3 m, a total of 27 cubic meters. For the brick structure, can also be used for steel structure, selected by the customer
1, optical measurement device: A, light source import quartz halogen lamp: nominal power: 100 w nominal voltage: 12 v nominal return amount of light: 2000-3000 lm
B, receiver: in the silicon photocell and light transmittance 0% without light through a light transmittance 100% light shining through.
2, the standard fire: A, fire 1.0 L alcohol
B, alcohol plate: stainless steel, bottom: 210 x110mm, top: 240 x140mm, height 80 mm
3, a mixture of smoke: use desktop fan to make smoke uniform distribution in the combustion chamber.
4, blank experiment: burning alcohol lamp to make the temperature of the combustion chamber to: 25 + / - 5 ℃.
5, temperature measuring device: the door face high from the ground 1.5 M, 0.5 M away from the wall, with a temperature sensor.
6, containing a set of light transmittance measurement software, can output curves and reports.
7, including a computer and a printer
