ATR121 | 32x74 mm PID Controller

This compact PID controller features high configurability. The analogue input is programmable for temperature sensors (resistance thermometers, thermocouples) but also for pressure transmitters, humidity and flow sensors.

The heating-cooling PID control algorithm is optimized for both temperature regulation and for processes with quick transitory, like pressure and flow control.

Software features of the ATR121 include open-close logics for valve control in industrial HVAC and dosing systems.

The controller outputs are always freely selectable selectable as command/multiple alarm modes/events.

  • Dimensions
    74 x 32 x 53 mm
  • Material
    Box: polycarbonate, Front: ABS UL94V0 self-extinguishing
  • Weight
    Approx. 100 g
  • Sealing
    Front panel: IP54, Box: IP30, terminal blocks IP20
  • Operating conditions
    Temperature 0-45 °C, humidity 35..95 uR%
  • Certifications
    CE, UL

ORDERING CODES

ATR121-AD

ATR121-B

Power supply

12..24 V AC / DC ±15% 50/60 Hz - galvanic isolation 2,5KV

230 V AC ±15% 50/60 Hz - galvanic isolation 2,5KV

Power consumption

2,4 Watt/VA max

3 Watt/VA max

Display

3 cifre, 0,56” red + 3 signaling leds

Analogue inputs

1 x Ris. 16bit, programmable for thermocouples K, S, R, J (automatic compensation of cold junction 0..50°C, ±0,5% F.S. ±1 digit F.S.), Thermoresistances PT100, PT500, PT1000, Ni100, PTC1K, NTC10K (β 3435K), Process signals 0..10 V (40000 points), 0/4..20mA (30000 points), Potentiometers 6..150 KΩ (40000 points).

Impedence:
0-10V: Ri > 110KΩ
0-20mA: Ri < 4.7Ω
4-20mA: Ri < 4.7Ω

Sampling time

100 ms (frequency 10 Hz)

Digital output

1x 12..35 VDC - 30 mA for SSR command

1x 8 VDC - 20 mA for SSR command

Auxiliary output

12 VDC - 30mA max for sensor supply

12 VDC - 20mA max for sensor supply

Relais Output

1x 8 A - 250 V AC resistive loads

1x 5 A - 250 V AC resistive loads

  • Control algorithms
    ON - OFF with hysteresis, P., P.I., P.I.D., P.D. time proportional
  • Tuning
    Manual or automatic
  • Alarm mode
    Absolute / Threshold, Band, High / Low deviation. Alarm with optional Manual reset. Loop Break Alarm
  • Double P.I.D
    Heating / Cooling with double P.I.D.
  • Soft-Start
    Rising gradient expressed as Degrees / Hour or fixed output percentage
  • Open / Close logics
    Open / Close logics for motorized valves
  • Software parameter configuration
    Memory Card, software LABSOFTVIEW, EASY-UP codes
  • Data protection
    Lock of Command/Alarm Setpoints - Access to parameters by Password
  • ATR121-AD
    DOUBLE SETPOINT CONTROLLER 32X74 3 Digit 1 AI-2 RL-SSR-12/24V
  • ATR121-B
    DOUBLE SETPOINT CONTROLLER 32X74 3 Digit 1 AI-2 RL-SSR-230V