Compact PID controller 32×74 mm
Universal entry, hot/cold regulation
The compact PID controller ATR121 adapts to a wide range of industrial applications. Its high configurability allows you to standardize a single controller model across your temperature, pressure, humidity, or flow control installations.
The analog input is programmed according to the sensor used:
The hot/cold control algorithm is optimized for both temperature control and transient-fast process control, such as pressure or flow control. This compact PID controller ensures a stable and precise response, regardless of the dynamics of your installation.
The software functions of the ATR121 include dedicated open/closed logic for the control of motorized valves. This solution is suitable for industrial CVC systems (heating, ventilation, and air conditioning) and dosing installations.
Each output can be freely assigned: control commands, multiple alarms or events. This flexibility simplifies wiring and integration into your control cabinet.
DYNATIME SA distributes the ATR121 in Switzerland and assists you in the selection and configuration of your compact PID controller. Contact us for technical advice or a quote tailored to your project.
| Case | 32 x 74 (front side) x 53 mm |
|---|---|
| Nutrition | 12…24 VAC/VDC or 230 VAC ±15%, 50/60 Hz (galvanic isolation 2500 V) |
| Consumption | 2.6 VA (AD code), 4.4 VA (B code) |
| Display | 3 digits, 0.56″ red + 3 signaling LEDs |
| Terms of use | Temperature 0 to 45 °C, humidity 35 to 95 % RH |
| Materials | Housing: polycarbonate; front panel: ABS UL94V0 self-extinguishing |
| Weight | Approx. 100 g |
| Protection index | Front view IP54, IP30 enclosure, IP20 terminals |
| Quick configuration | Memory Card, LABSOFTVIEW software |
| Analog input | 1 input, resolution 16 bits |
|---|---|
| Thermocouples | Types K, S, R, J (automatic compensation for cold welding at 0 to 50 °C) |
| Precision | ±0.2% full scale ±1 digit |
| Thermostatic resistances | PT100, PT500, PT1000, Ni100, PTC1K, NTC10K (β 3435K) |
| Process signals | 0…10 V (40,000 points), 0/4…20 mA (30,000 points) |
| Potentiometer | 6 kΩ, 150 kΩ (40,000 points) |
| Sampling time | 66 ms (15 Hz) |
| Relais | 2 relays: 1 relay 10 A/8 A 250 VAC + 1 relay 5 A 250 VAC (resistive load) |
|---|---|
| Digital release | 1 output: 8 VDC 20 mA (code B) or 12…35 VDC 30 mA (code AD) |
| Auxiliary output | 1 output for sensor power supply: 8 VDC 20 mA (code B) or 12…35 VDC 30 mA (code AD) |
| Regulatory algorithms | ON/OFF with hysteresis, P, PI, PID, PD proportional timing, dead zone |
|---|---|
| Adjustment | Manual or automatic (autotuning) |
| Modes of operation | Indicator, simple instruction, double instruction (parameter selection) |
| Data protection | Locking of the control and alarm settings, access to the parameters via password |
| Alarm modes | Absolute/threshold, band, high/low gap, manual reset option |
| Double PID | PID hot/cold |
| Open/closed logic | For motorized valves |
| Instructions | 2 instructions |
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