High Accuracy Mini PID Temperature Controller – PID-485

Libratherm Instruments Pvt. Ltd
Libratherm Instruments Pvt. Ltd
Libratherm Instruments Pvt. Ltd

High Accuracy Mini PID Temperature Controller – PID-485

Product Description:

PID-485 : PID Temperature Controller with 0.01°C resolution for precise control application

Size (mm) : 48 x 48 x 110

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Libratherm offers a new high-accuracy PID controller, Model PID-485, for systems requiring exact temperature control. This is designed and developed using the latest microcontroller chip and 24-bit ADC and programmed with the time-tested and field-proven PID algorithm. Typically, standard PID controllers have a 4-digit display, whereas this model uses a 5-digit display for 0.01oC resolution and better control accuracy. PID controllers are used primarily for precise process control. Unlike on/off oscillatory control, PID control action provides smooth and steady state control. This model offers all the useful features required to control the most complex system precisely.


This model accepts a factory-set single fixed input of either Pt-100 or Pt-1000. Control outputs are given as an optically isolated DC pulse to drive external SSR. Alternatively, analogue control output can also be provided to control the thyristor or any other linear control device.


PID-485 is designed mainly for viscosity baths requiring precise and long-term stable temperature control.

Key Features :
  • Microcontroller based Design
  • Single loop PID function.
  • 24-bit ADC for 0.01oC indicating /control accuracy
  • Field proven Algorithm tested successfully for various process control applications.
  • SSR and Analog control output
Applications:
  • Constant temperature oil bath
  • Ultra-low temperature deep freezer / cold storage
ParamtersCertification
InputRTD(Pt-100), RTD(Pt-1000) (User to specify at the time of order).
Range-99.99 to 200.00°C
Resolution0.01°C
Indicating Accuracy +/-0.01°C for Pt-100 / Pt-1000 sensors
(software linearized for accurate indication)
Control Accuracy Better than +/-0.05°C
Display 5-digit 0.25" Red 7-segment display for process value.
5-digit 0.25" Green 7-segment display for set value and PID parameters
Output IndicationFront Panel LED indications for SSR output, % Control Output and for Alarm status.
Control AlgorithmLinear or Time proportional PID.
Memory BackupIn case of power failure, the built-in non-volatile memory retains PID and Set values and automatically resumes control upon power
resumption.
Control Output (Switching)For external SSR, 0 to 10VDC pulse (OUT1 )
Control Output (Analog)Analog Outputs (4-20) mA (RL max = 300 Ohms) or
0-5VDC (RL min = 10KOhms) (12-bit resolution)
Alarm Output Single Relay Output with programmable hysteresis—can be used as High or Low Alarms or as a common alarm for both High and Low Alarms.
Serial InterfaceRS-485 port on MODBUS RTU protocol
Supply(90VAC-250VAC), 50/60 Hz
Size48 x 48 x 110 mm.
Panel Cutout / Terminals45 x 45 mm. +/- 0.5 mm. - 16 back panel terminals.
EnclosureABS plastic with polycarbonate front graphic.
CertificationCE certified (Low Voltage Directives – 2014/35/EU and
EMC Directives – 2014/30/EU)
Sr. No.Specifications Part No.
1.15-digit PID temperature controller with Pt-100 sensor
input and SSR control output		1512-1-1
1.2 5 digit PID temperature controller with Pt-100 sensor input and 4-20mA control output1512-1-2
1.3 5 digit PID temperature controller with Pt-100 sensor input and SSR control output and RS-485 interface1512-1-3
1.45 digit PID temperature controller with Pt-100 sensor input and 4-20mA control output and RS-485 interface1512-1-4
2.1 5 digit PID temperature controller with Pt-1000 sensor input and SSR control output1512-2-1
2.25 digit PID temperature controller with Pt-1000 sensor input and 4-20mA control output 1512-2-2
2.35 digit PID temperature controller with Pt-1000 sensor input and SSR control output and RS-485 interface 1512-2-3
2.45 digit PID temperature controller with Pt-1000 sensor input and 4-20mA control output and RS-485 interface 1512-2-4

Product Category

  • Temperature Indicators
  • Large Display Temperature Indicators
  • Portable Thermometers
  • Ramp/Soak Temperature Controllers
  • Multi Zone Ramp/Soak Controllers
  • PWHT/SR Controllers
  • PID Temperature Controllers
  • On-Off Temperature Controllers
  • Temperature Data Loggers
  • Temperature Scanners
  • Temperature and Humidity Sensors
  • Temperature and Humidity Transmitters
  • Temperature and Humidity Indicators
  • Temperature and Humidity Controllers
  • Clean Room Monitoring Systems
  • Thyristor Triggering Cards
  • Zero Cross Over Triggering Cards
  • Capacitor Bank Switch Cards (RTPFC)
  • Single Phase Thyristor Power Controllers
  • Two Phase Thyristor Power Controllers
  • Three Phase Thyristor Power Controllers
  • Single Phase Thyristor Power Switches
  • Three Phase Thyristor Power Switches
  • Three Phase SSR
  • Single Phase Thyristor DC Rectifier
  • Two Phase Thyristor DC Rectifier
  • Three Phase Thyristor DC Rectifier
  • Capacitor Bank Switches (RTPFC)
  • Signal Isolator DC to DC – AC Operated
  • Signal Isolator DC to DC – 24 VDC Operated
  • Signal Isolator AC to DC – AC Operated
  • Signal Isolator AC to DC – 24 VDC Operated
  • Signal Isolator Temp to DC – AC Operated
  • Signal Isolator Temp to DC – 24 VDC Operated
  • Signal Isolator Frequency to DC Signal
  • Signal Isolator with Display
  • Load Cell Signal Conditioners
  • Temperature Transmitters
  • Process Transmitters
  • DC Motor Controllers
  • Motor Soft Starters
  • Molten Metal Pyrometers
  • IoT Modules
  • Instrumentation Control Panels
  • Product Accessories
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