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Standards Smoke and Heat alarm test tunnel

Introduction:This equipment is used to test smoke fire alarms and detector sensitivity, directi

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Content

Introduction:

This equipment is used to test smoke fire alarms and detector sensitivity, directionality, repeatability, high and low temperature, and ambient light interference resistance, as well as temperature fire alarms and detector orientation, operating temperature, and response time. It consists of a smoke chamber, a photoelectric smoke density meter, a heater, a refrigerator, an interference light source, and an industrial control computer, and complies with standard specifications.

Standards:

EN 54-5. GB 4716. BS 5446-2. GB 20517. GB 4715. EN 14604. EN 54-7. EN 54-7. BS 5446-2 and ISO standards.

Function:

It consist of insulated test tunnel,aerosol generator, obscuration sensor, heat element, cooler, controller and computer. The obscuration meter was made of high quality imported part to ensure precision and stable reading.

The built-in photoelectric smoke density meter measures smoke concentration within the chamber. Using imported components, the advanced optical design minimizes the effects of ambient temperature on the sensor, ensuring test accuracy and stability. The equipment is equipped with a built-in heater and an external refrigerator for automatic temperature control within the chamber.

For smoke fire detectors, the sensitivity of the smoke detector is tested in both high and low temperature environments, decreasing to 0°C +/- 2°C or increasing to 5°C +/- 2°C at a rate of less than 1°C/min. When testing heat detectors, you can set heating rates of 1°C/min, 3°C/min, 5°C/min, 10°C/min, 20°C/min, and 30°C/min, with a maximum temperature of 160°C.

The test software allows you to adjust the air speed, smoke rise rate, and temperature to meet standard testing requirements. The specially developed Zone Smoke Test Tuner software includes built-in test parameters. Selecting the appropriate test item automatically runs the test program. The software continuously monitors smoke concentration, smoke rise rate, and temperature rate, and records the detector sensitivity.

Test Items:

1) Directional dependence.

2) Static response temperature.

3) Response times from typical application temperature.

4) Response times from 25°C.

5) Response times from high ambient temperature (dry heat, operational).

6) Supply voltage test.

7) Other tests (Other equipment is required to complete these tests).

Parameters:

Power supply

380V AC 20 kW5m power cord provided

Tunnel size

3.1m x 0.7mx 2.1m

Tunnel section size

450mm x 400mm

Constant temperature control25-160°C
Temperature Control AccuracySetpoint ±2°C, AIPID Intelligent Temperature Control System
Azimuth Test TurntableManual or Automatic (Optional)
Heating Rate0.2°C/min, 1°C/min, 3°C/min, 5°C/min, 10°C/min, 20°C/min, 30°C/min
Air speed0-1.2 m/s, DC motor speed control, software-set speed, automatically controlled constant mass flow rate of 0.8 +/- 0.1 m/s

Specifications:

Aerosol generator

Built in Thomas brushless pump imported from Germany

Agent:Liquid paraffin, 500ml provided

Particle size distribution between 0.5µm~1.0µm

Smoke rising rate: 0.015 dB/m/min≤⊿m /⊿t ≤0.1dB/m/min, preset to 0.05dB/m,

which can be set in the software.

Optical smoke densitometer

ADI circuit and advanced optical design

Transmitted light, wavelength 880nm~950nm, range: 0~2 dB/m

Measuring range: 0 ~ 2 dB / m, measuring error shall not be greater than m×

5%+0.02dB/m

Wind speed

0 to 2 m/s continuously adjustable via software setting

When the wind speed is set at 0.2m/s, the fluctuation range is less than ± 0.02m/s;

When the wind speed is set at 1m / s, the fluctuation range is less than ± 0.1m/s

High temperature test function of smoke fire alarm

Room temperature ~ 55 ° C;

Temperature control accuracy + / - 1 ° C;

Dry heat sensitivity test can be carried out in the smoke box;

Standard number can be selected by software, and the program can automatically control to the corresponding temperature, which can meet the different requirements of European and national standards

Low temperature test function of smoke fire alarm

0 ° C ~ room temperature, temperature control accuracy + / - 1 ° C, and 0 ° C sensitivity test can be realized in the smoke box.

Dazzling test device

Removable dazzling test device, software on/off automatic control.

Constant smoke control function

The smoke box is equipped with constant smoke control function, which can set the constant smoke concentration and automatically control the smoke to be kept within the range of + / - 0.003dB/m

The temperature rise rate of smoke fire alarm test

0.2 K /min, 1 K /min, 3 K /min,

5 K /min, 10 K /min, 20 K /min,

30 K /min and the error meets the standard requirements.

Maximum temperature:

160 ° C (applicable to detector categories A1. A2. B, C, D, e, F, G, s, R)

Computer

Including industrial control computer and display, industrial control computer processor performance i5-9400. memory 8g, hard disk 128G SSD or above, display 23.8 inches.

Test software

Chinese and English

Software function

The equipment has the function of automatic operation detection. Start with one key, and the test process is automatically completed by the program. The process includes automatic wind speed switching, smoke rising control,temperature control, smoke sensing azimuth angle conversion, smoke exhaust, light interference process, test data display, test result storage, etc

Data storage and output

It can automatically display the sensitivity value when recording alarm. Each test record includes threshold value, smoke rising rate, temperature, test directions, serial number and time. The record table can be exported to csv format. The concentration or temperature curve data can be stored, and the concentration or temperature value of each point can be stored according and exported to csv format.


Disclaimer: The above content is for reference and communication only among industry insiders, and does not guarantee its accuracy or completeness. According to relevant laws and regulations and the regulations of this website, units or individuals who purchase related items should obtain valid qualifications and qualification conditions.

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