Temperature Controllers
ET4400
PID Digital Temperature Controller 48x48 mm
PID or On-Off temperature controller with SSR or relay output. When SSR is selected as the main output, the relay output can be programmed to a second set value. It can perform heating or cooling control and offers an economical solution for processes requiring general-purpose temperature control.
Technical Specifications
Display and Keypad
- PV Display
- 3 digits, 14 mm, 7-segment red LED
- Status Indicator
- Two red LEDs for the Control, Alarm1 and SSO outputs
- Keypad
- Micro switch
Housing
- Housing Type
- Flush panel mounting with clamps
- Dimensions
- G48xY48xD87 mm
- Weight
- Approx. 250 g (with packaging)
Electrical Characteristics
- Supply Voltage
- 230 Vac +10% -20%, 50/60 Hz; 24 Vac ±10%, 50/60 Hz
- Power Consumption
- 5VA
- Connection
- 2.5 mm² plug-in terminal block
- Input
- J (Fe-CuNi) thermocouple
- Line Resistance
- Max. 100 Ω for thermocouple
- Operating Temperature °C
- 0...50 °C
- Accuracy
- 0.2% (of full scale) ±1 digit
- Data Retention
- EEPROM (minimum 10 years)
Outputs
- Control / Alarm 1 Output
- 1 relay: 250 Vac, 2 A (resistive load), NO+NC
- SSO Output
- Selectable logic control output
Control
- Control Type
- Single set value and alarm control
- Control Method
- On-Off, P, PI, PID (selectable)
- A/D Converter
- 12 bit
- Sampling Time
- 500ms
- Proportional Band
- Adjustable between 0% and 100%
- Control Period
- Adjustable between 1 and 250 s
- Hysteresis
- Adjustable between 1 and 50 °C/°F
- Output Power
- Ratio at the set value adjustable between 0% and 100%
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