TEMPERATURE CONTROL UNIT

Standard Features & Options : 'HE' Series Water Units

The SENTRA temperature control unit with HE Series instrument control includes stainless steel cabinetry, thermoformed front panel, AVT™ modulating cooling valve, efficient pump casing, flange mounted heater and cooling cylinders, and microprocessor instrument. Other Features include:

STANDARD FEATURES

TANK CONSTRUCTION:
• Twin tanks - separate heating and
  suction tanks
• Cast iron material
• Machined process connection
• NPT process connections
• Flange mounted to pump casing

PUMP
• Cast iron casing - custom design
  for increased flow
• Bronze pump impeller
• Pump seal flush
• Stainless steel pump motor shaft

COOLING VALVE
• ½" AVT™ modulating valve
• 0% to 100% aperture range
• Microprocessor controlled
• Integral to cooling cylinder
• Field serviceable

HEATER
• Flanged bolt-in mount
• Stainless steel sheath
• Mercury heater contactor

CABINETRY/FRAME:
• Stainless steel
• Hinged electrical cabinet door
• Lift-off mechanical cover
• Portable, on casters

LIMIT DEVICES:
• Water supply pressure switch
• Motor overloads
• Pressure relief valve
• High temperate limit
• Control circuit fuse

ELECTRICAL:
• Process pump motor starter
• Fused transformer
• 10' power cord installed
• Nema 1 construction

PRESSURE GAUGES:
· To process
· From process

WARRANTIES:
• Lifetime pump seal
• 4 year control instrument
• 2 year cooling valve
• 2 year mechanical

'HE' SERIES
CONTROL INSTRUMENT

• Continuous To Process temperature display
• Selectable From Process temperature display
• Continuous Setpoint temperature display
• Digital Setpoint selection
• Temperature display in Fahrenheit or Celsius
• Continuous Flow display in GPM or LPM
• Continuous Capacity display in % or Actual
• Out-of-Spec alarms for temperature and flow
• OK-Fault status indicators for Probe,
  Water Pressure, High Temperature,
  Pump Overload, Cooling Valve, and Phase
• Setup display for Temperature, Flow, Network
  and Machine
• RS-485 SPI communications port
  (DB-9 receptacle)

OPTIONS

INSTRUMENTATION
• SPI Communications Cable
• HE Remote display with 20' cable

UNIT:
• Total non ferrous units
• Closed circuit designs
• Mold purge
• Dual zone dolly with water
  and / or electrical manifolds
• Stacking stand with water
  and / or electrical manifolds

CABINETRY:
• Rear panel

SYSTEM ALARMS:
• Audible alarm
• Visual/audible alarm beacon

LARGER COOLING VALVE:
• 3¾" AVT

ELECTRICAL:
• Nema 12 construction
• Special electrics