Brief introduction

RB-LPLingman Smoke Telescope, according to the standard "Determination of Blackness of Fixed Pollution Source Emission Smoke by Lingman Smoke Blackness Chart Method" (HJ/T398-2007).

This instrument converts the monitoring of smoke and dust from the daily measurement method of Ringman smoke concentration map to remote measurement through high-quality prism telescopes. Therefore, it has the characteristics of small size, large field of view, long distance measurement, fast speed, high accuracy, easy portability, and easy mastery.

2、 Main parameters:

1Telescope magnification：10times

2Telescope objective aperture:50mm

3Measurement distance:0-500m

4Lingman Blackness Level:0Level1Level2Level3Level4Level5level

5Visual observation error: not more than0.5level

3、 Structural principle

This instrument adopts a binocular prism telescope system, and a corresponding Ringman smoke concentration map is made on the telescope reticle1-5The grayscale staircase block of the level, and the fully transparent part is0The observer compares the smoke target with the grayscale step block through the left eyepiece of the telescope to determine the standard level of smoke blackness.

4、 Usage method

Take out the instrument from the leather bag, degas the eyepiece cover and objective cover, then align the instrument with the monitored chimney mouth, adjust the telescope to make the black smoke emitted from the chimney mouth clear, and then compare and determine.

When measuring, the following points should be noted:

1. The illumination light during observation (i.e. direct sunlight or illumination from the sky) should be side light, approximately at a right angle to the line of sight, and should avoid frontal light and backlighting;

2. In cloudy and foggy conditions, due to the dark background of the sky, readings should be taken at a slightly lower level;

3. There should be no dark obstacles such as mountains, trees, or buildings on the background of the chimney exit;

4. When observing, the boiler should be in normal operation and the load should be maintained at the rated load80%At this time, no water should be added to the coal, and excessive air blowing should not be used to balance the release;

5. Observation cannot be based on one time, and the interval between each observation can be monitored0.1-1Between minutes, record the data sequentially (instantaneous blackness observed each time), and if the smoke and dust blackness is between level two, it can be estimated that1/2Level blackness value, then take the average of the measured values

The value is the blackness of the smoke and dust.

5、 Product configuration:

Lens cloth 1piece

desiccant 1bag

Leather bag 1only

belt 1strip

instructions 1share

inspection certificate 1share