Technical Specifications

Model PCT 020-01: Sci-tech P, PI, PID CONTROLLER SIMULATOR TRAINER

Simulated blocks
– Dead time (transportation lag),
– Integrator,
– Time constant
– Error detector and gain.
PID Controller (Configuration as P, PI, PD or PID)
– Prop. Band : 5% to 50% (Gain 2-20).
– Integral time : 10msec-100msec.
– Derivative time : 2-200msec.
Built-in signal sources.
– Set Value of -1V to +1V.
– Square wave of 1V p-p (min) at 40Hz.
– Triangular of 1V p-p (min) at 40Hz.
– Built-in 3 ½ digit DVM for DC measurements.
Interconnections
– All interconnections are made using 2mm banana Patch cords.
– Test points are provided to analyze signals at various points.
– All ICS are mounted on IC Sockets.
– Bare board Tested Glass Epoxy SMOBC PCB is used.
– In-Built Power Supply of +5V/1.5A, ±12V/250mA with Power ON indication
– Attractive ABS enclosures
– Set of 2mm Patch cords for interconnections
– User’s Manual with sample experimental programs.

Model PCT 020-02:Sci-tech LINEAR SYSTEM SIMULATOR TRAINER

Features
* Simulated first, second and third order system of type-0 and type-1.
* Calibrated variable gain amplifier (Resolution 1:1000).
* Built-in signal sources
– Square wave and Triangular
– Frequency: 45-90Hz.
– Amplitude: 0-2.5V approximately.
* Trigger output for perfectly steady display on CRO.
* Uncommitted amplifier for phase adjustment.
* Provision for disturbance inputs.
* Complete in all respect, except a measuring CRO.

Model PCT 020-03: Sci-tech POTENTIOMETRIC ERROR DETECTOR

Features
– High quality servo-potentiometers of 3600 shaft rotation.
– Requires an external CRO for a.c. Studies.
– Built-in signal and power sources.
– 3½ digits DVM for measurements.

Model PCT 020-04: Sci-tech SYNCHRO TRANSMITTER & RECIEVER

Features
– The input angular displacement displayed
o on anodized dial.
– The output angular displacement displayed
o on anodized dial.
– Two rotor terminals (R1 & R2) three stator
o terminals (S1, S2 and S3) are brought out
o on the front panel.
– Synchro transmitter-receiver pair with calibrated dials provided in Metal see through enclosure.
– Locking system for receiver rotor
– Receiver use as control transformer
– Built-in balanced demodulator circuit
– Panel meter for ac/dc voltages

Model PCT 020-05: Sci-tech TEMPERATURE CONTROLLER TRAINER

Features
– Temperature controller with facilities for P, I D and relay control blocks.
– Operating temperature: Ambient to 900 C.
– Separate controls for P, I, D channel gains.
– Two settings for relay hysteresis.
– Fast 25W oven fitted with IC temperature sensor.
– Digital display of set and measured temperature on 3 ½ digit built-in DVM.
– Buttered output for recorder.
– IC regulation in controlled circuit power supplies

Model PCT 020-06: Sci-tech TEMPERATURE SENSOR TRAINER

Features
– Study of 4 different temperature transducers – NTC thermistors, RTD Platinum, K(Cr-Al) thermocouples, IC temperature sensors.
– Study & comparison of Temperature transducer controlled alarm system.
– PID control: P, P+I, P+D & P+I+D control action
– Instrumentation amplifier, add on amplifier : X1, X100, X235, P controller, I controller, D controller Comparator, Electronic switch, Signal conditioning, Rotary /Slide pots, Heater,
Relay, Buzzer, LED
– Digital meter : Actual/Set temp/mV

Model PCT 020-07: Sci-tech RELAY CONTROL SYSTEM TRAINER

Features
– Study of 4 different temperature
– Simulated electronic relay using high speed IC’s.
– Simulated 2nd order linear plant. Facility for displaying x and x signaling.
– Dead zone variable from 0-600mV.
– Hysteresis variable from 0-500m.
– Built-in Signal source- Sing and Square Amp l i t u d e : 0 – 1V (mi n ) Va r i a b l e Frequency:10, 20, 40, 80, 100, 200, 400, 800 and 1000Hz.
– IC regulated internal power supplies.
– Literature and patch cords included.
– Accessory – a dual beam CRO (Optional).

Model PCT 020-08: Sci-tech DC MOTOR SPEED CONTROL TRAINER

Features
– Speed control of a 12V, 4W permanent magnet d.c. Motor
– Speed range: 0 to 3000 rpm (typical)
– Opto-interrupter based speed sensing.
– 4-digit speed display in rpm.
– Electronic tachogenerator for feedback.
– Separate unit for motor in a see-through cabinet.
– Essential accessory a CRO.
– Smooth, non-contact eddy current brake for loading.
– Built-in 3 ½ digit DVM for signal measurements.
– Built-in regulated internal power supply.
– Supporting literature and patch cords included.

Model PCT 020-09: Sci-tech COMPENSATION DESIGN TRAINER

Features
– Simulated ‘uncompensated’ system having adjustable damping. Peck percent overshoot Mp, variable from 20% to 50%, and steady state error variable from 50% to 0.5%.
– Compensation network implementation through built-in variable gain amplifier. Gain is adjustable from 1 to 11.
– Built-in square and sine wave generators for transient and frequency response studies. Frequency adjustable from 25Hz 800Hz (approx).
– Essential accessory: a CRO

Model PCT 020-10: Sci-tech STEPPER MOTOR STUDY TRAINER

Features
– Signal stepping and free running modes of operating with speed variation and direction reversal – internal TTL circuit.
– 360O mot ion Servo-Potentiometer position-pickup for motor dynamics.
– Operation through microprocessor kit sample control programs provided.
– Stepper motor specification
Torque : 3 Kg-cm.
Step angle : 1.8O.
Power : 12V, 1A/ phase

Model PCT 020-11: Sci-tech DIGITAL CONTROL SYSTEM TRAINER

Features
– Second order simulated process (analog process)
– Built-in D/A and A/D circuit (8-bit)
– 8085 based μP-kit as digital controller with user software in 8K EPROM.
– 16-bit arithmetic for algorithm calculations.
– Square wave test input (internal).
– 16 built-in levels of p. I and D gain each.
– Completed flexibility for the user to develop own software.
– IC regulated internal built-in power supplies.
– Essential accessory – a CRO.

Model PCT 020-12: Sci-tech AC SERVOMOTOR STUDY TRAINER

Features
– 2-phase a.c. servomotor – 12V/50Hz per phase.
– Small generator for loading.
– 4-digit speed display.
– 3-digit time constant display.
– 3 ½ digit r.m.s. voltmeter.
– 3 ½ digit d.c. panel meter.
– Voltmeter regulated internal supplies.
– Detailed literature with sample results.
– Built-in regulated internal power supply.
– Supporting literature and patch cords included

Model PCT 020-13: Sci-tech DC POSITION CONTROL TRAINER

Features
– Position control of a 12V, 1A d.c. gear motor (50rpm)
– Provision for positive and negative tachogenerator feedback.
– Tacho constant: 2V/ 1000 rpm approximately.
– Calibrated dials for reference and output position: resolution 10
– μP based waveform capture card.
– Literature and patch cords included.
– Built-in 3 ½ digit DVM for signal measurements.
– Built-in step signal and IC regulated power supplies for electronic circuit.
– Servo-potentiometer with full 3600 rotation.
– Separate unit for motor in a see-through cabinet.
– Detailed literature with sample results.
– Built-in regulated internal power supply.
– Supporting literature and patch cords included.
– Position control of a 12V, 1A d.c. gear motor (50rpm)

Model PCT 020-14: Sci-tech AC POSITION CONTROL TRAINER

Features
– 2-phase servomotor 12V/ phase, 50Hz, 10W.
– Power amplifier.
– Servo potentiometer type error detector.
– In-built 10.00V (rms) panel meter.
– μP based waveform capture card.
– Detailed literature with sample results.
– Built-in regulated internal power supply.
– Supporting literature and patch cords included.