(L-N) IR Furnace features and options

IR Furnace Features

Base Equipment and Options (L - N)

KEY	DESCRIPTION
LAMPIR	Infrared heating elements: Long life quartz lamps originally designed by RTC for IR furnace applications and manufactured in USA, Germany or Japan. Standard on all furnaces.
LEXAN	Clear protective shields installed in front of Safety panel, power distribution panel, element monitoring panel, and SCR panel. Standard on most furnaces.
LOAD	Load Station. The load station is an area 381 mm long (15 inch) at the entrance of the furnace which provides open access to accommodate loading of product on the continuous belt for processing by the furnace. Standard on all furnaces.
LFI	Line Filter to improve quality of power supplied to the furnace. Optional on most furnaces.
LT	<Process Ready/Alarm Light Tower: Provides a three stage alarm status light tower. The status system activates a three element alarm light, located above the upper frame, as follows: o Red Indicator: Alarm Condition, audible alarm o Yellow Indicator: Process Not Ready, no alarm o Green Indicator: Process Ready, no alarm Option available on most furnaces.
LTR	Left to Right: Belt moves from left to right as viewed from the operator console. This is the default furnace configuration. Standard on all furnaces if RTL is not specified with original order. Nitrogen Auto Gas Shutoff: Automatically opens the nitrogen supply inlet valve when the control system is started, prior to furnace entering WARM UP mode, and automatically shuts off that valve at furnace shutdown after COOL DOWN mode is complete. Can help minimize waste of process gas and relieves the operator having to return to the machine to shut off the process gas when the furnace has cooled down. Includes timed delay to assure clearing of all process gas and emissions from furnace chamber. Requires NO or NGFS, option available on most furnaces.
MA	Moisture Analyzer: Provides a moisture monitoring system for the process atmosphere in a furnace with a hermetic sealed chamber. A gas sample is withdrawn continuously from a sample port in the furnace chamber through the analyzer. A switched pump and vacuum break are provided to withdraw the sample. The analyzer is provided with an inline 1μm filter for removal of particulates from the sample flow. ProControl™ OIT displays dew point in ºC or moisture as PPM, and alert/alarm conditions. Option available on most furnaces. Requires OSS option.
N2-S	Nitrogen Auto Gas Shutoff: Automatically opens the nitrogen supply inlet valve when the control system is started, prior to furnace entering WARM UP mode, and automatically shuts off that valve at furnace shutdown after COOL DOWN mode is complete. Can help minimize waste of process gas and relieves the operator having to return to the machine to shut off the process gas when the furnace has cooled down. Includes timed delay to assure clearing of all process gas and emissions from furnace chamber. Requires NO or NGFS, option available on most furnaces.
NGFS	Nitrogen/Forming Gas Selector. Allows ability to select between nitrogen (N2) or a nitrogen hydrogen (N2/H2) mix (forming gas) process atmosphere in heating chamber of the furnace, depending on process requirements. Requires HC. Option available on most furnaces.
NO	Nitrogen Operation. Allows for dual gas operation for efficient use of primary process gas (Gas 1) in the furnace, minimizing consumption with a second gas for cooling and evacuation (Gas 2). Gas 1 is supplied only to oxygen-controlled areas (entrance baffle, heating chamber, and transition tunnel), while Gas 2 is supplied to eductors and cooling. Controlled atmosphere processes should be reviewed to assure that the product is below its oxidation temperature before reaching cooling section. Common Process Gas combinations include for Gas 1/Gas2: Gas 1: N2 Gas 2: CDA Note: This is similar to FGO except primary gas is supplied to furnace chambers and baffle/transition isolation sections. Order with HC, standard on some furnaces, option available on most furnaces.