M3

1/16 DIN heat/cool temperature controller

- Panel mount controller: 48x48 mm
- 1 Configurable input and 1 C/T input
- Up to 3 Digital outputs and 1 analogue output
      (Retransmission)
- PID single action or double action (Heat/Cool)
- RS 485 ModBus RTU port (optional)
- 2 display lines, 4 digits each, green colour

Process inputs:

1 Universal input

- Thermocouples: J, K, L, S, T
- RTD: Pt100
- Voltage (mV): 0/10...50 mV
- Current (mA): 0/4...20 mA (with 2.5 Ω shunt resistor)
- Custom linearisation and IR probes (J.K type)
Accuracy : 0.25% ±1 digit (probes) or 0.1% ±1 digit (mA or mV)

Auxiliary input(Optional)

- 1 current transformer input for load monitoring (optional) 50 or 100 mA jumper selectable

Keyboard

Mechanical: 4 multifunction keys

Process outputs

1 High level analogue output:(optional)

- For PV/SP retransmission
- Current (mA): 0/4...20 mA

Up to 3 Digital outputs

OUT1
- RELAY SPST-NO, 2A/250Vac
- TRIAC 1A 250 VAC
OUT2
- RELAY SPST-NO, 2A/250Vac
- SSR Drive 0...5Vdc, ±20%, 30 mA Max (Note 1)
OUT3
- RELAY SPST-NO, 2A/250Vac
- TRIAC 1A 250 VAC

Power supply:

- 24VDC/VAC
- 100… 240 Vac (50/60 Hz)
Transmitter power supply: 18 Vdc ±20%, 30 mA Max

Functions

- ON/OFF control
- PID single action or double action (Heat/Cool)
- Start-up + Timer (optional)

Autotuning

- Autotuning with natural frequency
- Autotuning with step response

Alarms

- Up to 2 configurable alarms

Communication and programming:

Interfaces

- RS 485 port with ModBus RTU and J-bus (slave) protocols (optional)

Programming/configuration tools:

- Code selection
- Easy to use front interface for configuration
- Configuration software available for PC

Installation

Mounting method: panel mount
Case dimensions: 48 x 48 mm (1/16 DIN)

Connections

Signals connection
18 poles 5.5 mm² screw terminals block
Protection factor: IP 65 front protection

Display and indicators

2 Display lines, 4 digits (PV) h: 10 mm, 4 digits (SP/OP) h: 8 mm, green colour
3 LED Bargraph + 2 Alarm and 1 Transmission LEDs

Connectable to:

- SCADA for monitoring, traceability and remote management
- DX and DY gateways for remote monitoring
1) Second output may be selected as SSR or relay output with an internal jumper

UL Listed

File no. E176452
Ref. UL 504

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