High Accuracy Mini PID Temperature Controller – PID-485
₹10,500 – ₹11,550
Prices are inclusive of Delivery Charges.
PID-485 : PID Temperature Controller with 0.01°C resolution for precise control application
Size (mm) : 48 x 48 x 110
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
Technical Specification
| Paramters | Description |
|---|---|
| Input | RTD(Pt-100), RTD(Pt-1000) (User to specify at the time of order). |
| Range | -99.99 to 200.00°C |
| Resolution | 0.01°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 Indication | Front Panel LED indications for SSR output, % Control Output and for Alarm status. |
| Control Algorithm | Linear or Time proportional PID. |
| Memory Backup | In 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 Interface | RS-485 port on MODBUS RTU protocol |
| Supply | (90VAC-250VAC), 50/60 Hz |
| Size | 48 x 48 x 110 mm. |
| Panel Cutout / Terminals | 45 x 45 mm. +/- 0.5 mm. - 16 back panel terminals. |
| Enclosure | ABS plastic with polycarbonate front graphic. |
| Certification | CE certified (Low Voltage Directives – 2014/35/EU and EMC Directives – 2014/30/EU) |
Ordering Information
| Sr. No. | Specifications | Part No. |
|---|---|---|
| 1.1 | 5-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 output | 1512-1-2 |
| 1.3 | 5 digit PID temperature controller with Pt-100 sensor input and SSR control output and RS-485 interface | 1512-1-3 |
| 1.4 | 5 digit PID temperature controller with Pt-100 sensor input and 4-20mA control output and RS-485 interface | 1512-1-4 |
| 2.1 | 5 digit PID temperature controller with Pt-1000 sensor input and SSR control output | 1512-2-1 |
| 2.2 | 5 digit PID temperature controller with Pt-1000 sensor input and 4-20mA control output | 1512-2-2 |
| 2.3 | 5 digit PID temperature controller with Pt-1000 sensor input and SSR control output and RS-485 interface | 1512-2-3 |
| 2.4 | 5 digit PID temperature controller with Pt-1000 sensor input and 4-20mA control output and RS-485 interface | 1512-2-4 |
