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home products PID And Ramp-Soak Program Controllers MICROPROCESSOR BASED SINGLE ZONE 10 PATTERN RAMP/SOAK PROGRAMMABLE PID CONTROLLERS

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MICROPROCESSOR BASED SINGLE ZONE 10 PATTERN RAMP/SOAK PROGRAMMABLE PID CONTROLLERS

Product Details:

Place of Origin	Maharashtra, India
Brand Name	LIBRATHERM
Model Number	PRC-309,PRC-310
Usage	Industrial
Theory	Programmable PID Controller

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Detailed Product Description

MODEL WISE DESCRIPTIONS:

PRC-309	Single input 10 program each of 16 steps Ramp / Soak Programmable PID Controller
PRC-309/2	Two input selectable K or S/R T/C (or any other to specified) with 10 program of 16 steps each Ramp / Soak Programmable PID Controller
PRC-315	Single input 10 program of 16 steps each Ramp / Soak Programmable PID Controller Multi display (3 digit)
PRC-310	Single input 10 program of 16 steps each Ramp / Soak Programmable PID Controller with 16 digit multiple Display
PRC-311	Single input 10 program of 16 steps each Ramp / Soak Programmable PID Controller with 16 digit multiple Display

PRODUCT DESCRIPTION:

Libratherm offers Microprocessor based multiple Ramp / Soak programmable PID temperature controller Models PRC-300, PRC-301,PRC-309, PRC-309/2 and PRC-315, which are designed to improve reliability, accuracy and control for all processing applications. It features Ramp and Soak functions (the capability to control the temperature and its rate of change over a predetermined time span). One to ten different patterns each of sixteen ramp/soak steps can be programmed into the memory with the user-friendly membrane keyboard. Separate displays are provided to monitor simultaneously the Process temperature, Set temperature and the Program number.It can also be used as single set point control when the profile control is notdesired. Inputs can be Thermocouple, IR Thermocouple, RTD Temperature Sensors,Voltage, Current Signals and etc.

It offers both switching outputs in the form of SSR or relay to drive external load contactor and continuous control outputs in the form of (4-20)mA or(0-5)volt etc., which can be used to control heater power through Thyristor power pack (for electrical heating system) or to control the position of a modulating motor valve (for oil or gas fired heating systems).The analog outputs can be directly connected to Libratherm make single phase /three phase SCR phase angle fired power controller which is ideally suitable for both resistive and inductive heating load. Additional 2 relays are also provided for time or temperature dependent event outputs as per the system requirement. The programmed profile and other parameters are retained in the non-volatile memory in the event of power failure. These instruments finds its applications in furnace/ oven control, food and metal processing, jewelry casting, heat treatment plants etc. It is rugged, reliable and field proven over a decade and also economically priced.

TECHNICAL SPECIFICATIONS:

Design	Micrprocessor based 8 bit with 12 bit ADC and 8 bit DAC
Input	Thermocouple type J, K, R, S, B, C, D or RTD(Pt-100)/2 or 3-wire, (4-20)mA, (1000 to 1200)mV, (0-5)V etc. (any one to be specified).
Range	Subject to the full range of the specified input.
Resolution	0.1 / 1^oC Subject to the specified input and range.
Accuracy	Better than ± 0.1% of the specified range.
Display	4 digit 0.5 Red 7-segment LED display for process value 4 digit 0.3 Red 7-segment LED display for set value
Tuning	Manual tuning of PID values.
Control Action	PID or On/Off (for both direct and reverse action).
No. of Profiles / Patterns	1 to 10. (Format1 : SP0 t1 SP1 t2 SP3 t3 till SP16) (Format2 : PL0 Pr1 Pd1, PL1 Pr2 Pd2, till PL16). One or More profile
No. of Ramp/Soak Steps per profile	1 to 16 Steps. (no restriction in programming that ramp should be followed by soak or vice versa)
Set Temperature	Programmable for each steps in the full range of the specified input
Time per Step	1 to 540 mins. (9 Hrs. per step). Or 1 minute to 100 hours (Two or more steps can be combined for longer time duration).
Program Hold Facility	Manual Hold or Auto Hold (Hold back feature for guaranteed Ramp/Soak facility).
Memory Backup	Retention of PID and set values in the non-volatile memory in the event of power failure.
Alarm Output	High or Low or Event Alarm Relay (5A @ 230VAC).
Control Output	DC pulses to drive external SSR, Built in Triac (5A @ 230VAC) or (4-20)mA or (0-5)VDC output with soft start and power limit.
Supply	90 to 240 VAC ± 10% (5VA), 50/60Hz
Size	96 x 96 x 160 mm.
Enclosure	Metal Powder coated.