Temperature Controller
 
Applications
  • Process Industries.
  • Laboratories.
  • Heat Treatment Plants.
  • Plastic Industries.
Features
  • Bright digital display for easy viewing.
  • Excellent accuracy and repeatability.
  • Dual slope integrating technique with auto zero and auto polarity.
  • Automatic cold junction and line resistance compensation.
  • Minimum effects on performance against temperature, humidity and power flactuations.
  • Digitally linearised scale available optionally.
  • Control setting by push to set method to avoid any error.
  • ON/OFF or proportional control available with multiple relay / control output.
  • S.S.R. output provided optionally for trouble free reliable operation.
 
Specifications
MODEL TC - 4010/11     TC - 4020/21 DTIC - 3510/3511     DTIC - 3520/3521
INDICATION/DISPLAY Calibrated Dial 3 1/2 Digit - 7 Segment RED LED display of 12.5mm character height with auto polarity indication.
INPUT   RESISTANCE/EXCITATION    CURRENT Greater than 100kΩ for Thermocouple input/ 1mA excitation current for RTD input.
SENSOR BREAK   INDICATION -- Three least significant digits Blank and most significant didit On.
COLD JUNCTION & LINE    RESISTANCE   COMPENSATION Automatic cold junction compensation over ambient temperature of 0 to 60°C. Upto 500Ω line resistance for Thermocouple and up to 20Ω line resistance for RTD three wire configuration.
NO. OF CONTROL POINTS ONE OR TWO.
TYPE OF CONTROL ON / OFF Type or Time Proportional Type.
SETTING METHOD Potentiometric.
SETTING ACCURACY ±2% of span. No setting error by push to set type facility.
CONTROL OUTPUT 1 Change Over Relay contact, 3Amp. Resistive Load Capacity at 230V AC.
RELAY STATUS Indicated by RED LED.
OPEN SENSOR   PROTECTION Up scale with Relay Trip.
OPERATING AMBIENT   RANGE 0 to 60°C Temperature & 95% R.H. at 40°C (non - condensing).
EFFECT OF TEMPERATURE ON    ZERO AND SPAN For - DTIC - ±0.05 digit/ °C on zero & ±0.01% of Span/°C on span.
For - TC - ±0.5%/° on zero & ±0.2% of span/°C on span.
POWER   REQUIREMENT 230V ± 10%, 50HZ. 5VA power consumption.
INPUT/OUTPUT   TERMINATION Barrier terminal strip for 0.5 - 1.2mm wire connection.
ENCLOSURE 92x92 (mm) panel cutout with 150mm depth. 92x92 (mm) / 186x92 (mm) panel cutout with 150mm depth.
   ON/OFF type - with 0.1% dead band around set point.

Time Proportional type - with
1. Proportional band of 20% adjustable.  
2. Reset for adjustment of offset.            
3. Proportional period of 10 second fixed.

Code : 3rd digit : 0-ON/OFF, 1-Proportional. 4th digit indicates No. of set points.

Temp. controllers in flameproof enclosures are also available.
INPUT CALIBRATION & RANGE TABLE
 
INPUT TYPE RANGE °C RESO °C
Accuracy
Standard %±digit Linearised (L) %±digit
Fe/Co    T/C J 0-400* 1 ±0.5%±1 ±0.1%±1
    0-700 1 - ±0.1%±1
Cr/Al    T/C K 0-400* 1 ±0.5%±1 ±0.1%±1
      0-1000 1 ±-0.5%±1 ±0.1%±1
     0-1200* 1 ±1%±2 ±0.1%±1
Cu/Co    T/C T 0-200 0.1 - ±0.1%±2
     0-400 1 - ±0.1%±1
PTPTRH   10% S 0-1700 1 - ±0.1%±2
PTPTRH   13% R 0-1400* 1 - ±0.1%±2
    0-1700* 1 - ±0.1%±2
RTD PT-100 -100 to +200 0.1 ±0.5%±1 ±0.1%±1
    -100 to +600 1 ±0.2%±1 ±0.1%±1
 
 
 
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