详细介绍:
DC1020CR-301000-E
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产品资料:
Thermocouple Health Monitoring
Production facilities need a reliable way to monitor
and predict when servicing may be required to
avoid costly process problems caused by a
failing thermocouple.
• Honeywell QX and SX recorders provide a diagnostics
credit feature along with their standard message
system to monitor the health of thermocouples and
alert the user if the devices are starting to fail.
Vacuum Furnace Control
Temperature control in the vacuum environment
can be diffi cult because of the changing heat transfer
characteristics of the furnace as it moves from
conduction and convection to radiation.
• Honeywell’s HC900 process controller includes
powerful algorithms for temperature control
applications. Multiple tuning constants enable
control response to be tailored to the dynamic
characteristics of the furnace. Approach limits
allow maximum heating rates without overshoot,
reducing cycle time and optimizing effi ciency.
Annealing Furnace Control
Material treated in annealing furnaces must be
heated uniformly and then maintained at a constant
temperature. Traditional approaches use furnace
thermocouples for control during initial heat-up,
and then switch to work thermocouples when
setpoint is reached for the soak.
• The HC900 control solution utilizes a “load
follower” cascade confi guration to execute control
transfers in annealing furnaces. This confi guration
eliminates the need for transfer relays, switches
and their associated wiring.
Carbon Potential Control
Steel parts are often fabricated with a low
percentage of carbon; adding more carbon,
followed by quenching from a high temperature,
ensures their hardness.This process involves gas
carburizing, which is dependent upon precise
furnace atmosphere and temperature control.
• Honeywell can provide a UDC 3200 digital
controller to control both percent carbon and furnace
temperature within required limits. This solution
delivers high-accuracy direct percent carbon readout.
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