Cold Weather Catalog - Chromalox Precision Heat and Control
Cold Weather Catalog - Chromalox Precision Heat and Control
Cold Weather Catalog - Chromalox Precision Heat and Control
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<strong>Control</strong>s®HTLSC1D2Series C1D2<strong>Heat</strong> Trace Line Sensing<strong>Control</strong> Panel• Approved for Class 1, Division 2Groups B, C <strong>and</strong> D• Solid State Relay Output Rated30 Amps 40˚C• Universal Inputs• NEMA 4 Enclosure• Ground Fault Alarm• Programmable High/LowTemperature Alarms• Programmable CurrentAlarmApplications• Freeze Protection• Fuel Gas Preheating <strong>and</strong> Superheating• Fuel Oil Preheating• Hydrocarbon <strong>and</strong> Chemical Product Piping• Power Generation Plants152DescriptionThe <strong>Chromalox</strong> HTLSC1D2 series panels aremicroprocessor based temperature control<strong>and</strong> monitoring units for heat tracing used infreeze protection <strong>and</strong> process temperaturecontrol applications.This series of panels can be confi guredfor ambient or line sensing control. TheHTLSC1D2 series implement a scaleabledesign such that they can be confi gured withor without communications, ground faultmonitoring or enclosure heater.This unique format offers a design that canbe tailored both by price <strong>and</strong> features to meetthe most challenging dem<strong>and</strong>s in heat traceapplications. For example: The HTLSC1D2series can be networked together via RS-485MODBUS <strong>and</strong> the <strong>Chromalox</strong> Windows basedChromasoft SpecView software package. Theoptional ground fault monitoring addressesthe national electric code requirements <strong>and</strong>reduces the cost of installing costly groundfaultcircuit breakers. In the event of sub-zerotemperatures the optional enclosure heater isavailable. The <strong>Chromalox</strong> HTLSC1D2 seriesoffers single <strong>and</strong> dual loop designs <strong>and</strong> areapproved for Class 1 Division 2 Areas.The HTLSC1D2 series have programmableinputs (thermocouple, RTD, mA, VDC), On/Offor PID control, Auto-tune function, High/Lowtemperature alarms, current alarm, <strong>and</strong> sensorfailure indication. The heat tracing circuit isswitched by a 30 amp solid state relay rated at40˚C ambient.The <strong>Chromalox</strong> HTLSC1D2 series panel comesready to install <strong>and</strong> includes control <strong>and</strong> powerwiring terminal blocks for fi eld connections.Technical SpecificationsArea of Use: Class 1 Division 2Approvals: UL, cUL, CESupply Voltage: 120, 208, 240, 277, <strong>and</strong>480 Vac.Ambient Operating Temperature: 32 - 104˚F(0 - 40˚C), -32 - 104˚F (-35.5 - 40˚C) withOptional Enclosure <strong>Heat</strong>er.Protection: NEMA 4X Fiberglas ®Communications: RS-485 MODBUSTemperature Sensor Input: J, K, T, E, B, R, S,N, L, PT100, mV, mA, VOutput: Solid State Relay rated 30 amps@ 40˚C.Current Alarm (Low): 0 - 50 Amps in .1 ampresolution.Temperature Alarms: Field selectable Dev.High/Low, Dev. B<strong>and</strong> High/Low, ProcessLow /High, Latching, Non-Latching.<strong>Control</strong> Modes: Field Selectable On/Off, PID,Auto-tune.Ground Fault Alarm: Adjustable Trip Level30 - 300mA; Adjustable Trip Delay 0 - 1 Sec.