Pixsys DRR244
DIN rail or wall mounted indicating controller and signal converter


  • Fully configurable 4-digit PID controller for single control loop
  • DIN rail or wall mount
  • Universal analogue input for current, voltage, thermocouple, RTD, thermistor, potentiometer, or loop break alarm via current transformer
  • Ideal for measurement of temperature, pressure, flow, level, pH, and many other process values
  • Rescalable analogue output for control, retransmission or signal conversion
  • 3 x relay outputs, digital input/output, RS-485 communications
  • Provides temperature indication and emissivity adjustment for PyroEpsilon infrared temperature sensor
  • App-based configuration via NFC

General Specifications

1 Analogue Input
Configurable for J, K, R, S, T, N, B thermocouples; Pt100; Pt500; Pt1000; Ni100; PTC1k; NTC10k; 0 to 10 V; 0/4 to 20 mA; 0 to 60 mV; potentiometer 1...150 kΩ
2 x Digital Inputs
PNP, programmable for Setpoint Change / Hold / Run / Start Tuning, Start-Stop/ Configuration Lock
1 x Current Transformer Input
50 mA, 800 μs, 4096 points
3 x Relay Outputs (Q1, Q2, Q3)
Q1, Q2: 250 V AC, 5 A, resistive loads
Q3: 250 V AC, 2 A, resistive loads
2 x Digital Outputs
12 / 24 V DC, 30 mA max.
1 x Analogue Output
Configurable 4 to 20 mA or 0 to 10 V DC for control or retransmission of process / setpoint value, or emissivity adjustment of PyroEpsilon sensor
Voltage Supply Output
12/24 V DC, 30 mA max, to supply the sensor
Serial communications
RS-485 Modbus RTU Slave
Control Action
On/Off with hysteresis
P., P.I., P.I.D., P.D. time-proportioned, dead band
Manual/automatic control of output
Tuning of PID parameters
Manual or automatic
Via push buttons or phone app via NFC, parameters protected by password
White 4-digit LED 12 mm,
Red 5-digit 8 mm (alphanumeric)
±0.2% full scale ± 1 digit for thermocouple
Sampling Time
Configurable (2.1 ms fastest - frequency up to 470 Hz)
Supply Voltage
24 to 230 V AC/DC ± 15%, 50/60 Hz
Power consumption
9 VA
Product Markings
CE, RoHS Compliant

Mechanical Specifications

Enclosure Size
Size of 4 modules, DIN43880, DIN-rail mount DIN EN50022
Enclosure: Polycarbonate V0; Front: Silicon V0 self-extinguishing
210 g approx
Removable screw terminal blocks

Environmental Specifications

Enclosure and terminal blocks IP20
Operating conditions
Temperature 0 to 45 °C, 35 to 95% RH (non-condensing)

As well as being suitable for process control in a wide range of industries, the DRR244 is ideal for use with the PyroEpsilon infrared temperature sensor.

Push buttons on the front of the unit allow the user to adjust the emissivity setting of the PyroEpsilon sensor, which is controlled by the DRR244’s 4-20 mA analogue output.

The emissivity is quickly and easily adjusted during the process.

3 x alarm relay outputs and RS485 Modbus communications can be used simultaneously.

Electrical Installation

DRR244 electrical connections - for connection to the PyroEpsilon sensor, with simultaneous temperature display and emissivity adjustment, contact Calex.

The following accessories are available for the DRR244:

• Memory card for quick configuration of many controllers

• Configuration software

• MyPixsys app for NFC configuration

Model Description
DRR244-13ABC-T Controller/indicator/signal converter, DIN rail or wall mount

1 x analogue input + 3 x Relays + 2 x SSR + 2 x digital input + 1 x Analogue output V/mA + RS-485 + Current Transformer

Supply 24..230V AC/DC