Spectrochem Instruments Pvt. Ltd.

The new high performance dual microcontroller auto gas box embedded controller SBC for ELICO AAS
Text Box: Click here for the full system specification (PDF)

Instrumentation through innovation
Text Box: Autogas box for AAS

 

·  Safety interlocks for all input gases

·  Safety interlocks for drain empty & burner

·  ATMEGA16 & ATTINY2313 microcontrollers

·  On board Dc-DC converter, single 24v supply

·  Optically isolated solenoid driver circuit

·  Dynamic fuel/oxidant  mixing (optional)

·  16 X 2 alpha numeric LCD

·  Auto ignition, sputter or hot filament

·  PC operation by RS232 full duplex interface

·  Stand alone front panel operation

·  Emergency shut down in Nitrous flame if…

·  Power fails

·  Any gas fails

·  Automatic mode setting with burner type

·  Flame sensor

·  Service diagnostic routines for field test

·  Gas leak sensor (optional)
Product Summary

System operation:

 

At power-up the system monitors the burner limit switches, it then setup the system operation mode depending upon the limit switches condition. If the system detects “Nitrous oxide burner”, the system initiates CAP charge monitor routine. The system waits until the BACK-UP CAP is fully charged. Next it checks the line pressure sensors for proper gas pressure. If all is OK it proceeds to ignition ready status, otherwise it indicates the respective error and waits there until the error is cleared.

 

The system features automatic ignition procedure or the user may select manual ignition mode. The manual ignition mode may be initiated by first pressing “STOP” switch when system is displaying ALL OK READY for IGNITION”. Next within three seconds the user is required to press “IGN” switch. The system then instructs the user to light a match, after 5 seconds it switches on the main “Acetylene solenoid”

 

In both manual and AUTO mode, post ignition, the system enters into monitoring mode, any interlock failure causes auto shut down procedure. The auto shutdown procedure also depends on the burner type. If the installed burner is “Nitrous oxide” it enters into a protective shutdown mode. Also in the event of power failure, the system enters into protective shutdown if installed burner is “Nitrous Oxide”. However if the main flame itself fails, all solenoids are automatically shut down. The system accepts command from the keyboard or can be interfaced through a PC

A batch of 10 Auto gas boxes produced for M/s ELICO Ltd. The New high performance super safe design.