PID Controllers with Logger Function RP2l, RP4l

The PID controller with logger function RP2l, RP4l is designed for measuring, regulating by proportional-integral-derivative law of the input physical quantity and storing its values in the non-volatile memory (up to 10,000 records) of the device at specified time intervals (from 1 to 9999 minutes) for one, two or four channels.

PID controllers with logger function:

1. PID controllers with discrete control: RP2l, RP4l (types of output devices P, OK, OC);
2. PID controllers with analog control: RP2l (types of output devices AN1, AN2, AN3, AT1, AT2, AT3).

RPXL allows the following functions:

• measuring temperature, humidity, pressure (or other physical parameters) of various objects using standard sensors:
  – thermoresistive converters [TO], thermoelectric converters [PT],
  – sensors with standardized output current signal 0..5 mA, 0(4)..20 mA [AT],
  – sensors with standardized output voltage signal 0..1V, 0..10V [AN];
• measuring humidity based on the psychrometric method using standard TO (function of the second channel RP2l, RP4l);
• displaying current and set temperature values on built-in LED digital indicators for one channel;
• temperature (humidity) regulation of objects by proportional-integral-derivative (PID) law;
• ability to change set temperature values (setpoints) for PID controller on two channels;
• operation in mode of converter "input value – analog signal" (RP1l and RP2l with analog outputs);
• ability for automatic tuning of PID controller coefficients;
• data exchange with personal computer via RS-485 interface;
• light indication of device operation mode, generation of "Error" signal;

Modifications of PID controllers with logger function RP2l, RP4l

• number of channels: 2, 4;
• model with LCD indicator or with four-digit seven-segment indicators;
• power supply from AC 220V mains and from DC source 12..24V;
• types of input signals: UV (universal input), TO, PT, AN and AT;