General Specifications
Inputs
1 input, configurable for J, K, R or S thermocouples; Pt100; Ni100; Pt1000; Pt500; PTC1k; NTC10k (B 3435K); 0 to 10 V; 0/4 to 20 mA; 0 to 40 mV; potentiometer 6kΩ /150kΩ; Current Transformer 50mA (1024 points)
Outputs
ATR243-20ABC: 2 relays 5 A resistive OR 1 relay + 1 logic SSR 12 V 30 mA / 4 to 20 mA / 0 to 10 V for control or retransmission (selectable)
ATR243-21ABC-T: 2 relays 5 A resistive + 1 logic SSR 12 V 30 mA / 4 to 20 mA / 0 to 10 V for control or retransmission + RS485 Modbus RTU (57600 baud max) + Current Transformer Input 50 mA for Loop Break Alarm
ATR243-31ABC: 3 relays 5 A resistive + 1 logic SSR 12 V 30 mA / 4 to 20 mA / 0 to 10 V for control or retransmission + Current Transformer Input 50mA for Loop Break Alarm
ATR243-21ABC-T: 2 relays 5 A resistive + 1 logic SSR 12 V 30 mA / 4 to 20 mA / 0 to 10 V for control or retransmission + RS485 Modbus RTU (57600 baud max) + Current Transformer Input 50 mA for Loop Break Alarm
ATR243-31ABC: 3 relays 5 A resistive + 1 logic SSR 12 V 30 mA / 4 to 20 mA / 0 to 10 V for control or retransmission + Current Transformer Input 50mA for Loop Break Alarm
Control Action
ON/OFF, P, PI, PID, Autotuning
Configuration
Via push buttons, protected by password; optional memory card with battery for repeat configurations; software for configuration via PC.
Display
4-digit dual LED, 8 red status LEDs
Accuracy
0.5% ± 1 digit for TC/RTD; 0.2% ± 1 digit for V/mA
Sampling Time
Selectable (15 ms max)
Supply Voltage
24 to 230 V AC/DC ± 15%, 50/60 Hz
Power consumption
3 W
Operating Temperature
0°C to 45°C
Operating Humidity
35% to 95% RH
Sealing
IP54 front panel (IP65 with gasket), IP30 housing, IP20 terminal blocks
Dimensions
48H x 48W x 122.5D mm
Product Markings
CE, UL, RoHS Compliant