Model Number: SSI 549 ULMH
Standard Number: UL 94, ASTM D 635, ASTM D 408, ASTM D 3801, ASTM D 5048, IEC 60707, IEC 60695-11-10, ISO 1210, ISO 10351
The UL test serves as a preliminary indication for Plastics components acceptability for use as part of a device or appliance with respect to its flammability. The instrument is designed for both Vertical and Horizontal burning.
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UL 94: Test for Flammability of Plastic Materials for Parts in Devices and Appliances
This test uses specimen which is held at one end in the vertical or Horizontal position . A burner flame is applied to the free end of the specimen for two intervals separated by the time it takes for flaming combustion to cease after the first application. Two sets of 5 specimens are tested. The following are recorded for each specimen:
The instrument is designed to conforms to various international standards
Horizontal Burning Test : HB (ASTM D 635, D 4804, IEC 707, or ISO 1210)
20mm Vertical Burning Test: V-0, V-1, or V-2 (ASTM D 3801, IEC 707, or ISo 1210)
500w (125mm) Vertical Burning: 5VA or 5VB (ASTM D 5048 or ISO 10351)
The Instrument consist of the following:
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A Double Walled Chamber for sample burning with front glass door | |
A Burner as per UL specifications | |
Burner Rotation, the angle of the burner are preset in the PLC | |
Gas control system including gas regulator | |
Automated Burner Movement system | |
Sample Holding System (adjustable both vertically and horizontally) | |
Digital Timer for flame application (can be preset for 1 to 99 sec) | |
Digital timer for flame observation after flame is removed. | |
Digit timer for Glow observation after the flame is extinguished | |
Exhaust Fan / Light in the chamber |
Basic Design:
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As per UL 94 | |
Inner Chamber Stainless Steel 1m x 1m x 1m (LBH), Volume 1 m3 | |
Burner 100 mm length 9.5 mm ID | |
Burner Movement through a motor driven worm | |
Manual Movement to adjust the burner position with respect to sample |
PLC Control:
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Flame Application Time : Pre settable from 1 to 99 Seconds | |
Flame Away time : Pre Settable from form 1 to 99 Seconds | |
Cycles : Pres Settable from 1 to 9 | |
Provision to check up to 5 samples for VA / VB test) |
Operations:
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Select the test to be preformed on the sample | |
Input the flame and flame away time (as per standard) | |
The PLC automatically set the burner angle as per the test requirement. | |
Adjust the sample as per burner position taking in account the position given in the standard. | |
Start the test. | |
If more than one sample needs to be tested, the HMI prompts the user to put second sample. | |
After required no of cycles, the burner is automatically shut off with a beep | |
The Timer for After Flame is switched On automatically. | |
After user Hold this timer, Glow timer is switched On. | |
Based on the timers and operator inputs, the HMI displays the results as per UL requirement. |
Results
Results displayed after considering all the parameters as per UL standard | |
In 5A & 5 B, the results are summarized and shown after considering all the five samples. | |
Result page directly gives the sample classification as per UL standard |