| Supply | 
  
    
            
                | Type | 24 Vdc nom (21.5 to 30 Vdc), reverse polarity protected. | 
        
            
                | Current Consumption | 110 mA @ 24 Vdc with 20 mA input/output and alarm relays energized, typical. | 
        
            
                | Power Dissipation | 2.3 W @ 24 Vdc with 20 mA input/output and alarm relays energized, typical. | 
        
        
            | Input | 
  
    
            
                | Type | 0/4 to 20 mA (separately powered input, voltage drop ≤ 0.5 V) or 4 to 20 mA (2 wires Tx current limited ≈ 25 mA), or voltage input ±12 V. | 
        
            
                | Integration time | 100 ms. | 
        
            
                | Input range | 0 / +25 mA for current, ± 12 V for voltage. | 
        
            
                | Transmitter line voltage | 15.5 V typical, 15.0 V minimum, @ 20 mA. | 
        
        
            | Acknowledgement input | 
  
    
            
                | Type | Logic level reverse polarity protected. | 
        
            
                | Voltage range | 0 V ≤ OFF ≤ 5 V, 18 V ≤ ON ≤ 30 V. | 
        
            
                | Current Consumption | 10 mA @ 24 Vdc, typical. | 
        
        
            | Output | 
  
    
            
                | Type | Fully customizable 0/4 to 20 mA, on max. 300 Ω load source mode, current limited @ 25 mA. | 
        
            
                | Transfer characteristic | linear, direct or reverse, square root. | 
        
            
                | Response time | ≤ 100 ms (10 to 90% step change). | 
        
        
            | Alarm | 
  
    
            
                | Trip point range | within rated limits of input sensor. | 
        
            
                | Output | two voltage free SPDT relay contacts. | 
        
            
                | Contact rating | 4 A 250 Vac 1000 VA, 4 A 250 Vdc 120 W (resistive load). | 
        
            
                | DC and AC load breaking capacity | refer to Instruction Manual. | 
        
        
            | Modbus interface | 
  
    
            
                | Type | Modbus RTU RS-485 up to 115.2 kbps for monitor/configuration/control. | 
        
        
            | Isolation | 
  
    
            
                | Test Voltage | I.S. In/Other 1.5 kV; Alarms/Other 1.5 kV; Alarm/Alarm 1.5 kV; Out/Supply 500 V; Out/Ack 500 V; Ack/Supply 500 V. | 
        
        
            | Environmental conditions  | 
  
    
            
                | Operating temperature | temperature limits –40 to +70 °C. | 
        
            
                | Storage temperature | temperature limits -45 to +80 °C. | 
        
        
            | Safety description | 
  
    
            
                | Equipment | Associated apparatus and non-sparking electrical equipment. | 
        
            
                | Safety parameters | Uo = 26 V, Io = 91 mA, Po = 588 mW at terminals 13-14 Uo = 1.1 V, Io = 56 mA, Po = 16 mW at terminals 14-16 Uo = 1.1 V, Io = 0.012 mA, Po = 0.004 mW at terminals 15-16 Ui = 30 V at terminals 14-16 or 15-16, Ii = 128 mA at terminals 14-16, Ci = 2.1 nF, Li = 0 nH at terminals 13-14-15-16.
Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70 °C. | 
        
        
            | Mounting | 
  
    
            
                | Type | DIN-Rail 35 mm, with or without Power Bus or on custom Term. Board. | 
        
            
                | Weight | about 120 g. | 
        
            
                | Connection | by polarized plug-in disconnect screw terminal blocks to accommodate terminations up to 2.5 mm² (13 AWG). | 
        
            
                | Dimensions | Width 22.5 mm, Depth 123 mm, Height 120 mm. |