Process Controller

Process Controller

Send Inquiry

There are many clients across the international market who avail from us a wide gamut of Process Controller. All these controllers are developed and made in compliance with the industry standards using supreme quality of raw materials. Widely used in the industries of machine tools, stone cutting tools and automobiles in order to control the entire process of production, this Process Controller is offered to clients at competitive prices.


  • Suitable for viscosity measurement bath control
  • Easy to program
  • Password protection

TC 307 Process Controller


  • Based On State Of Art Latest Micro controller Technology With Control action Modes ON / OFF or PID
  • Easy Programming With Password Protection
  • Software Calibration with Front Panel Push Buttons
  • Dual L.E.D Display :1)Upper for Process Value Display 2)Lower for Set Point Value Display
  • Input RTD (PT-100), J & K Type, 4-20 mA; factory settable
  • Automatic Wire Length Compensation For 3 Wire RTD (PT-100)
  • Automatic Cold Junction Compensation For Thermocouple
  • One Set Point With Controller Relay Output & Hysteresis Programmable by user
  • Set Point 2 For Relay 2 or 4-20 mA O/P; Programmable by user
  • Adjustable Time Delay For Operation Of The Relays
  • Modbus RTU Protocol with Isolated RS-485 Communication


  • Oven Control
  • Food Processing
  • Cold Storage & Chilling Plant
  • Constant Temperature Bath & Environmental Chamber
  • Plastic / Packaging / Rubber & Metal Industry
  • Engineering Industry like tiles, Machine Tools, Automobile parts, stone cutting tools manufacturing
  • Petroleum Industry for Viscosity measurement bath control



4 - 20mA Input

RTD (PT - 100)

K - Type

J “ Type


-999 To 9999

-50 To 400°C

0 To 1200°C

0 To 750°C


0.001, 0.01, 0.1, 1





±0.25 % of Full Scale

±0.25 % of Full Scale

±0.25 % of Full Scale

±0.25 % of Full Scale


Automatic wire length compensation for Long wire RTD (PT - 100) sensor

Automatic Cold Junction Compensation for Thermocouple (J or K type)


Upper : 4 digit, 0.56 (13 mm), 7 - Segment RED L.E.D display for Process Value indication

Lower : 4 digit, 0.56 (13 mm), 7 - Segment RED L.E.D display for Set Point Value indication of RL1

L.E.D. Indication

RL1 & RL2 for Relays, TX & RX for communication

PRG to show User in Programming mode & O/P to show 4 - 20 mA O/P is selected instead of the Relay 2

Set point

Independent set points setting for RL1 & RL2


1 To 100 counts, Independent setting for RL1 & RL2

Control action

LO -HI, HI-LO, LO- Very LO, HI - Very HI control action for relay; programmable by user

Time delay

0 To 9999 sec, Common setting for RL1 & RL2 to operate after the Process Value crosses the Set Point Value

Relay contact type

1 NO - C - NC Relay Contact Rated 230 VAC/5A for RL1 & RL2

Configuration of relay

RL1 operates for Set point 1, RL2 operates for Set point 2 ( RL2 is optional)

Fault condition

In Under, Over OR Open condition i.e. fault condition, Relay can be made OFF or ON; programmable by user


Setting by 4 keys on front panel i.e. SET / NEXT, UP, DOWN & BACK

Monitoring : Sensor

Open / Under / Over

i) By Display : Sensor Break/ Open shows oPEn, Under range shows Undr & Over range shows ouEr

ii) By Retransmission current O/P : Up scale current : 21 mA, Down scale current : 3 mA; programmable by user

Retransmission output


i) 1 No. 4 - 20 mA output with MAX Load 750 ohms

ii) Range: As per the Input type, Low range / High range: Anywhere in the range (High range > Low range)


Modbus RTU Protocol with Isolated RS-485 Communication

Supply Voltage

230 VAC ± 10% OR 110 VAC ± 10% OR 24 VDC

Operating Temp.

- 40 To 85°C

Relative Humidity

Below 95% non condensing

Enclosure Detail




Protection Class

IP “ 40

IP- 65

IP-65, CMRI for IIA & IIB Gas group

Cabinet Material

ABS Plastic, White Colour

Polycarbonate, Grey colour

Cast Alluminium alloy, LM-6 / C.I. Enclosure

Cable Entry

Terminal connector for connection

Thermoplastic cable gland (IP - 68)

Double compression cable gland (Ex-Proof), ET-type


96 (H) X 96 (W) X 120 (D) in mm

215 (H) X 240 (W) X 120 (D) in mm

300 (H) X 250 (W) X 110 (D) in mm


92 (H) X 92 (W) in mm

- - - -

- - - -


Panel mounting

Wall Mounting / Stand Mounting

Wall Mounting / Stand Mounting


Approx. 1.0 Kg

Approx. 2.5 Kg

Approx. 4.0 Kg