Differential Controller
- Panel mount controller: 78 x 35 mm, depth 75.5 mm
- 2 Configurable probe input
- 2 digital inputs
- Absolute or Differential PID or ON/OFF Control
Process inputs:
2 temperature probe inputs
- PTC KTY81-121 (990 Ω @ 25 °C)
- NTC 103AT-2 (10KΩ @ 25 °C)
Overall accuracy: ±(0.5% fs + 1 digit)
2 digital inputs
- Free Voltage
Keyboard
Mechanical: 4 multifunction keys
Process outputs
Up to 4 Digital outputs
OUT1
- RELAY SPDT, 8A
- SSR Drive
- 0/4... 20 mA or 0/2... 10V isolated (power supply 24 VAC/VDC or 100... 240 VAC/VDC ± 10% only and RS485 not available)
OUT2
- RELAY SPDT, 8A
- SSR Drive
OUT3/OUT4
- RELAY SPST-NO, 5A
- SSR Drive
Power supply:
- 12 VAC/VDC (not available in case of analogue output 0/4... 20 mA or 0/2... 10V isolated)
- 24VDC/VAC
- 100… 240 VAC (50/60 Hz)
Transmitter power supply: 10 V DC (±10%), 20 mA max.
Functions
- ON/OFF control with neutral zone
- PID single action or double action (Heat/Cool) with overshoot control
- Absolute or Differential Control between the two channels
- Bumpless ramp to set point change
- Start-up delay
Autotuning
- Adaptive Autotuning
- Oscillatory
- Fast
Alarms
- Up to 3 configurable alarms + loop break alarm
Communication and programming:
Interfaces
Communication on TTL port to:
- Universal programming key
- Remote display
- RS 485 serial interface (not available in case of analogue output 0/4... 20 mA or 0/2... 10V isolated)
RS 485 port with ModBus RTU protocol (optional)
Programming/configuration tools:
- Configurable parameter level “Promotion”
- Configuration software available for PC
Installation
Mounting method: panel mount
Case dimensions: 78 x 35 mm, depth 75.5 mm
Connections
Communication port connection
5 Pole TTL Port
Signals connection
24 poles 2.5 mm² screw terminals block
Front protection: IP 65 (with gasket) according to EN 60070-1 for indoor use
Display and indicators
1 display line, 4 digit, h: 12 mm, red colour
3 LED Bargraph
Connectable to:
- Programming key A01 for PC connection, backup and other functions
- SCADA for monitoring, traceability and remote management
- DX and DY gateways for remote monitoring
Used for:
- Liquid coolers (chillers)
- Natural air-conditioning systems through the recirculation of air
- Heating by solar panels
- Many other applications where two temperature readings are needed
File no. E362268
Ref. UL 61010-1 CSA 61010-1
(supply 24 VAC/VDC)