Versatile LGO™ Series Box Furnaces feature the latest technical advances in heating elements, insulation and temperature control, all integrated into a self-contained cabinet.
The patented LGO™ heating element (light gauge overbend) delivers maximum radiant heat energy to the process load. The LGO™ element is partially imbedded within the exclusive Moldatherm® insulation, combined with unique double shell construction to provide optimum temperature uniformity, energy efficiency, fast response, quick heat-up and rapid cool-down.,
- Required Accessories: Required power cord and hardwiring not included. Optional RS485 Digital Communications Port allows controller to be connected to a PC for remote monitoring and control of the furnace; up to 30 units can be connected to one PC.
- Warranty and Service Offering: 12 months
Features and Benefits
- Patented LGO (light gauge overbend) heating elements with Moldatherm insulation for efficient and economical transfer of heat to chamber, with low exterior temperatures
- Variable heat-up rate eliminates thermal shock to materials with quick heat-up and cool-down rates
- Choice of side hinge or vertical lift door; see specifications for model selection
- Air vent (1" dia., top) and air inlet (0.375" dia., rear) for inert atmosphere exchange. May experience some leakage at door
- Self-tuning, digital instrumentation for precise temperature setpoint and display
- Platinel II® thermocouple for long-term stability
- Main power on/off switch on control panel; control panel designed for easy maintenance access
- Safety door switch to interrupt power to heating element when door is opened; protects heating elements and minimizes exposure to end-user
- Removable shelves for versatility; 0.58 cu.ft. models include 1 two-part shelf, center position; 1.95 cu.ft. models have 3 shelf positions; 1 two-part shelf included standard
- Moldatherm hearthplate supports load and prevents damage due to spillage
Digital, Single Setpoint Controller
- Microprocessor-based self-tuning PID control (proportional, integral, derivative) provides optimum thermal process, prevents overshoot
- Single segment, single setpoint, 1 ramp to setpoint
- Adjustable high limit overtemperature protection
- Simultaneous LED display of actual temperature vs. setpoint
- May be configured to display temperature in either °C or °F
Digital Single Program, Multiple Segment, Programmable Controller
- Microprocessor-based self-tuning PID control (proportional, integral, derivative) provides optimum thermal process, prevents overshoot
- Single program with multiple segments for ramp (up and down) and dwell (timed hold) temperature control
- Adjustable high limit overtemperature protection
- Simultaneous LED display of actual temperature vs. setpoint
- May be configured to display temperature in either °C or °F
Digital Multiple Program, Multiple Segment Programmable Controller
- Available on models with "P" designation
- Microprocessor-based self-tuning PID control (proportional, integral, derivative) provides optimum thermal process, prevents overshoot
- Multiple programs and segments for ramp (up and down) and dwell (timed hold) temperature control
- Adjustable high limit overtemperature protection
- Simultaneous LED display of actual temperature vs. setpoint
- May be configured to display temperature in either °C or °F
Overtemperature Control (OTC)
- Adjustable digital overtemperature control, available on selected models with "B" suffix designation; see chart
- Protects furnace and load in the event of primary control circuit failure
- Overrides main controller and shuts off power to furnace if high limit is reached
- Manual re-set required for safety
- Operates via magnetic contacts through signal from independent thermocouple
Flowmeter Option (FM) (Inert Atmosphere Only)
- Available on selected models with "FM" designation
- Gas flowmeter, adjustable, located on front control panel
- Adjustable flow rate, range 1.0 to 10.0 cu.ft./hr standard
- Suitable for inert gas or air flow to chamber
- Allows fresh air exchange for ashing applications
- Not suitable for combustible or volatile gases
Optional RS485 Digital Communications Port
- RS485 Digital Communications port available as an option. Allows controller to be connected to a PC for remote monitoring and control of the furnace. Up to 30 units can be connected to one PC
