IntelliTrace ITC1 & ITC2 Digital Heat Trace Controller

Manufacturer: Chromalox

IntelliTrace ITC1 & ITC2 Digital Heat Trace Controller

Manufacturer: Chromalox

The Chromalox IntelliTrace ITC series is de- signed for line or ambient sensing heat trace applications such as freeze protection and/or process temperature control. This controller may be used with constant wattage, mineral insulated or self-regulating heating cables. The ITC is intended for use in industrial locations in either hazardous (Class I, Division 2) or non-hazardous environments.

The ITC Series is offered in either a single circuit or an independently controlled and monitored dual circuit platform. They provide a unique, industry-leading combination of heating capacity, application flexibility and technology.

The ITC is a microprocessor-based system with SSR (Solid State Relay) power control which switches an impressive 40 Amps per circuit at 100-277 VAC.

There are three user-selectable control modes available on the ITC: Manual, Off or Auto. An output of 1% to 100% is available while in Manual Mode and you may choose either PID or ON/OFF control while in the Auto Control Mode.

You may employ one or two RTD sensors for either circuit. When using two RTD sensors, the ITC may be set to Low, High or Average. The ITC may also be configured as a 2-circuit ambient sensing controller that uses only one RTD to control both circuits. This provides the owner with much more flexibility and redundancy to help meet their ever-varying process demands.

The ITC employs a soft start feature that uses a proprietary software algorithm which eliminates the inherent self-regulating in-rush current, resulting in less nuisance tripping at cold temperatures. The soft start feature is selectable which allows this controller to be employed in non-heat trace applications as well.

All process conditions may be monitored and managed both locally and remotely. All process variable, communication and alarm settings and security codes are user-adjust- able via simple page menu navigation.

In terms of system supervision, the ITC controller monitors temperature, current load and ground fault equipment protection leak- age current (GFEP). Additionally, the alarms on the ITC consist of high and low temperature, high and low current, high GFEP current and sensor failure. For GFEP see next page for specifics.

Should the ITC unit realize a failed sensor, the controller automatically switches into a user adjustable manual output duty cycle. To eliminate abrupt current spikes, the Chromalox ITC employs bumpless transfer power switching when switching over from either manual or auto mode.

The ITC unit is housed in a compact wall mountable, NEMA 4X FG or optional 316 SS enclosure and it features a high resolution TFT display, LED indication of Load, Power & Alarm status for each circuit and front panel capacitive touch user interface buttons which are mounted on a hinged door.

 

The ITC enclosure provides electrical connections for the heating cable, the AC Power and the RTD Sensors and it comes complete with stainless steel mounting brackets.

Features
  • ·         1 & 2 Circuit Models
  • 40 Amps per Circuit
  • SSR Control
  • 100 – 277 VAC, 50/60 Hz
  • Hazardous (Class I, Division 2) or Non Hazardous Areas
  • Soft Start Feature
  • Operating Temperature:  -40˚F to 104˚F (-40˚C to 40˚C)
  • Modbus RTU/RS485, RS422 & TCP/Ethernet
  • 10” x 8” x 6” (26cm x 21cm x 15cm) NEMA 4X FG Wall Mount Enclosure
  • High Resolution Color TFT Display
  • LED Indication for Power, Load & Alarm per Circuit
  • Front Panel Capacitive Touch Switches
  • PID, On/Off or Manual Control Modes
  • One or Two Sensor Inputs / Circuit – Min, Max & Averaging
  • 2 Circuit Ambient Control from 1 RTD Sensor
  • Full Monitoring & Alarms
    • High / Low Temperature & Current, GFEP & Sensor Failure
  • Programmable Duty Cycle On Sensor Failure
  • AC & DC Alarms
  • Password Protected Security Levels
  • CE, UL/cUL

Specifications

Manufacturer

Sensor Type

  • 3-wire RTD,
  • 100 W PT
  • 0.00385 W/W/˚C
  • 20 W balanced lead wire

Number of Sensor Inputs

  • 1 or 2 per Circuit

Sensing Configuration

  • Single
  • Low
  • High
  • Average
  • Use RTD1 to control both circuits

Power Switching

  • SSR

Number of Circuits

  • 1 or 2

Capacity

  • 40 Amps per Circuit

Control Types

  • PID; Control mode must be set to Auto
  • Autotune ; On or Off
  • Proportional Band, (˚F) ; Range: 1 – 100
  • Integral (sec/repeat) ; Range: 0 – 9,999
  • Rate or Derivative, (seconds) ; Range: 0 – 500
  • On/Off ; Control mode must be set to Auto
  • Dead band, (˚F) ; Range: 2 – 100
  • Manual ; Range: 0 – 100%
  • Soft Start, Current Clamping ; Enable or Disable

Temperature (PV)

  • Range: -80˚F to +1100˚F (-62˚C to +593˚C)

Low Temperature Alarm

  • Range: -80˚F to +1050˚F, Off (-62˚C to +566˚C, Off)

High Temperature Alarm

  • Range: -80˚F to +1150˚F, Off (-62˚C to +621˚C, Off )

Low Current Alarm

  • Range: 0.1 A – 50.0 A, Off

High Current Alarm

  • Range: 0.1 A – 50.0 A, Off

GFEP

  • Range: 30 mA – 150 mA

GFEP Alarm Condition

  • Alarm Only, Alarm & Trip, Alarm & Latch, Alarm & Trip & Latch

Output on Sensor Failure

  • Range: 0–100%, Bumpless Transfer to Manual Mode

Calendar

  • Year, Month, Day, Date, Hour & Minute

Audible button depress

  • Range: On, Off

Security

  • 3 Levels of password protected security

Alarm State

  • Normally Open
  • Normally Closed

Display

  • 3.5” 320 x 240 RGB Full color graphic TFT module

Human Interface

  • 5 Capacitive Touch Input Buttons

LED Indication

  • Power (Green)
  • Load (Amber)
  • Alarm (Red) – Per Ckt

Alarm Types

  • Low & High Temperature
  • Low & High Current
  • High GFEP
  • Sensor Failure

Alarm Relays

  • 1 x DC Alarm Output, 1.8 Amp, 0 - 50 VDC
  • 1 x AC Alarm Output, 1.8 Amp, 12 - 240 VAC

Alarm Contact State

  • Mode: Normal Operation, Default: Closed, Optional: Open
  • Mode: Alarm Condition, Default: Open, Optional: Closed
  • Mode: Power Off, Default: Open, Optional: Open

Communications Modbus

  • RTU/RS-485 (2 or 4 wire)
  • TCP/Ethernet (optional)

Communications Webserver/Ethernet IP

  • (Optional)

Temperature

  • -40˚F to 104˚F (-40˚C to 40˚C)

Power Supply

  • 100 to 277V 50/60Hz

Protection

  • IEC IP66

Enclosure rating

  • NEMA 4X FG (Optional Stainless Steel)

Approvals

  • UL/cUL Ordinary and Class I
  • Division 2
  • Groups A,B,C,D
  • Hazardous Locations. (UL File: E347725) CE

Documentation

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