Experimental operation methods of the glow wire tester

Author: QINSUN Date: 2016/6/18  

About the glow wire tester operation instructions according to the iec60695, gb5169.10-11 and gb4706.1 the design and manufacturing requirements with the standards "glow wire test method", which apply to the fire danger test on electrical and electronic products, household electrical appliances and materials, simulation heat element or overload resistance of heat or ignition source caused by thermal stress in a short time. This instrument adopts steel structure of spraying, imported instrument display, easy operation, stable performance, suitable for the quality inspection departments at all levels and relevant enterprises to use fire resistant test
The main technical parameters and functions for the glow wire tester
1．Heating temperature: 500-1000 ° or less continuous tunable range, temperature measurement accuracy of plus or minus 10 ° c
2．More than burning time: 0.1 999.9 s, plus or minus 0.1 s (adjustable time range)
3．Burning time: 0.1 999.9 s, automatic recording, pause manually
4．Residual flame time: 0.1 999.9 s, automatic recording, pause manually
5．Hot wire for sample pressure: 1 + / - 0.2 n. pressure limiting depth of 7 mm
6．Glow wire: φ nickel chromium (80%), chromium (20%), the size is made according to the rules.
7．Thermocouple: φ nickel chromium/nickel aluminum wire, k index
8． Auto off: sample after reaching prescribed burning time, automatically be off from the hot wire
9．Overall dimensions: width * deep * high (1120 * 520 * 520) mm

Preparation about the glow wire tester operating instructions before use
1、The instrument is placed in ventilation equipment room (or special ventilation in a small laboratory), in order to test after waste gas discharge in a timely manner)
2、The two weights form a complete set with thin wire two pulleys at left by the supporting plate (through the corresponding holes) hanging at the bottom of the supporting plate, the other end around below red part of the small screws
3、According to the requirements of standard to make and clamp samples
4、To determine the experiments location
a．Press the "left" button, when the glow wire head comes into contact with the red arrow loosening the "left" key part; Fixed a try in below red arrow part, make a good contact with hot wire head to try
b．Adjust the test heat depth of 7 mm. Adjust the proximity switches, lights, and fixed the induction switch of the position
c．Press the "right" button; make the car right, the right automatically stop after touching the limit
Software specifications
1、Switch on the main interface, click enter the system
2、Working interface
2-1）Test temperature: make measurement for hot wire temperature
2-2）The temperature in the cabinet: the current temperature in the cabinet
2-3）Residual flame time: keeping time for flame
2-4）More than burning time: after the flame is extinguished Mars keep time
2-5）The burning time: car contact sensor timing starts
2-6）Burning time Settings: set the burning time
2-7）Activation: the car automatically on the left, when the sample into contact with hot wire, the car is stopped on the left, timing starts burning time, burning to preset time arrives, rack back automatically
2-8）stop：
2-9） Left: test the car on the left, reaches the limit stop
2-10）Right: test the car right, reaches the limit stop
2-11）Flaming pause: time to burn, flaming start time; click, flame time to stop counting.
2-12）Pause burning: Flaming time, the burning, more than start time; click, burning, more than time to stop counting.
2-13）Heating: the heating start
2-14）Time Reset: burning time, flaming time, burning time than the time cleared and reset to start
3、Temperature compensation page
3-1）Temperature test: input the deviation compared with practical temperature value, make compensation temperature experiment
3-2）The temperature in the cabinet: input the deviation compared with practical temperature value, to compensate the temperature in the cabinet
4、The temperature curve
Test temperature real-time curve, which reflects the change trend to experimental temperature
Operation instructions about the glow wire tester

the glow wire tester Test procedures
1、make connect to power switch in burn cases
2、Press the "reset" button, set the burning time according to the standard requirement
3、Press the heat button access to current, a clockwise to adjust the heating power knob "current regulation"
4、After stable temperature, press the "left" button, the car will go on. When the sample into contact with hot wire, at this point the car stopped on the left, namely the instrument for timing, hot to preset time arrives, rack back automatically, trial when sample a flame, press the "residual flame pause," flame dies should press the "burning" suspended, if you want to stop the test halfway, can press the "stop" button
五． the glow wire tester Precautions
1、The users must be stable power supply; Otherwise too much effect on the temperature changes by voltage fluctuation.
2、Thermocouples are wearing parts, it is not a column of qualified 3 aspects for product warranty
3、The glow-wire should not be long-term work at high temperatures, so as not to shorten the service life of the thermocouple which should be promptly after each use to reduce the current, and power off.
4、After each test, clean the combustion chamber in case of power failure, and be careful not to touch crash and burning thermocouple wire
5、When the test is completed, the user can use the fan exhaust gases generated during combustion, but fans do not open during the test, so as not to affect the test results
6、If you need repairs, especially replacement of the glow-wire pay attention to toggle through retighten the screws, otherwise adverse effects from exposure to current loop interfaces and generate heat. After the user replacement parts, should be on all the screws

the glow wire tester Remark
Ammeter and preset settings (when the device is shipped, the parameters have been set, a non-professional guidance, not allowed to change, or the fault which is not covered by the warranty)
 

More about the glow wire tester,
You can follow as below, Qinsun Instruments Co., LTD, Address: No. 258 Banting Road, Shanghai, Zip Code: 201199
Phone: +86-21-6420 0566    Fax: +86-21-6420 0566-810     E-mail: info@qinsun-lab.com    website: www.qinsun-lab.com.
 

2016-06-16 15:49