Features:

• Gas mixing system
• Low combustible-gas alarm (specific)
• PLC based controls
• High accuracy valve type flow meters
• Precision control and repeatability
• Typical configuration 3 nonflammable gasses
• 1 flammable gas (e.g. for mixing H2/N2)
• Automatic purge cycles
• Easy set-up and operion
• Versatile and user selectable process gasses (between 1 and 4)
• User configurable purge time
• Self diagnostics feature
• Multi -level audio and visual alarms
• Fully controlled by programmable logic controller
• Electrical interlock back-up for added reliability
• Minimum operator interface
• Optional: low pressure critical gas shut-off
• Easy installation.  Full manual and Installation diagram provided.

The HGI Flammable Gas Flare-out Module is a safety gas flare-out that burns off combustible gases from the process. The module houses an integral burner pilot flame and a UV flame detector for positive flame detection. The HGI constantly monitors the flame and, in the case of a flame-out condition, the PLC control panel initiates to revive the flame. In the event that the flame is not re-ignited within this time, the system initiates a safe shutdown of the process with the required alarm level.

Features:

• Medium flow gas burner with SiC igniter
• Honeywell UV sensor flame detection
• High flow, resetable flash back arrestor
• Stainless steel strain and filter mechanism
• Interface with PLC, ready control logic
• Light sensor to test igniter performance

Product Description

MHI SIMGAS is a versatile integrated process gas/atmosphere management system that finds application in any process where more than one gas is required. The system provides complete stand-alone process gas management on a single platform while integrating itself in the form of interlocks with its peripheral instruments and control systems.

The system consists of three modules:

Module 1: SIMGAS MODULE1 (PLC)

Module 2: SIMGAS MODULE2 (GAS FLOW)

Module 3: MODULE3- (HGI).  Flammable gas flare-out system.

Module 1:  SIMGAS MODULE1 - (PLC).  The SIMGAS MODULE1-(PLC) is a PLC based electrical control panel capable of controlling between 2 and 4 different process gasses (standard model is for 4 gasses). The PLC comes loaded with a program that has self diagnostics, Process initiation, Interface with external interlocks, control of gas valves in Module 2 - (GAS FLOW) and control of the flammable gas flare system in Module 3 - (HGI SYSTEM). The SIMGAS gives multi level audible and visual alarms, and incorporates safety / emergency shut-down.

Module 2: SIMGAS MODULE2 - (GAS FLOW).  The SIMGAS MOD2(GAS FLOW) is a gas delivery panel. The panel incorporates gas manifold, manually settable gas flow meters, ON/OFF gas solenoid valves operated thru the SIMGAS and pressure switches for monitoring of gas pressures.

Module 3:  SIMGAS MODULE3-(HGI). 

The HGI Flammable Gas Flare-out Module is a safety gas flare-out that burns off combustible gases from the process. The module houses an integral burner pilot flame and a UV flame detector for positive flame detection. The HGI constantly monitors the flame and, in the case of a flame-out condition, the PLC control panel initiates to revive the flame. In the event that the flame is not re-ignited within this time, the system initiates a safe shutdown of the process with the required alarm level.