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								Voltage 115 V, 50/60 Hz (no extra cost) | 
								X2 | 
							
						
							
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								Extended overtemperature protection by additionally integrated Pt100 sensor for independent temperature monitoring for models with SingleDISPLAY | 
								A6 | 
							
						
							
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								Temperature restriction - Temperatures: +50, +55, +60, +65, +70 or +75 °C  (Please, indicate upon ordering) | 
								A8 | 
							
						
							
								
									
	
		
			 
		
	
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								Interior lighting for observing the load | 
								R0 | 
							
						
							
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								Interior socket (can only be ordered with limited temperature range - max. +60 °C), ampacity 230V/2, 2A/500W, can be switched off with the On/Off switch, cannot be switched individually, moisture tight IP68 (only with SingleDISPLAY), (option A8 necessary against surcharge) | 
								R3 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter, for introducing connections at the side, can be closed by flap, position left centre/centre | 
								F0 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter, for introducing connections at the side, can be closed by flap, position left centre top | 
								F1 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter, for introducing connections at the side, can be closed by flap, position right centre/centre | 
								F2 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter, for introducing connections at the side, can be closed by flap, position right centre top | 
								F3 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter for introducing connections at the side, can be closed by flap in special positions (please, state location) - left | 
								F4 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter for introducing connections at the side, can be closed by flap in special positions (please, state location) - right | 
								F5 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 23 mm clear diameter for introducing connections, can be closed by flap in special positions (please, state location) - rear | 
								F6 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 14 mm clear diameter, can be closed by flap, in special positions at the back (please, state location) | 
								D6 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 38 mm clear diameter, can be closed by flap, in special positions at the back (please, state location) | 
								F7 | 
							
						
							
								
									
	
		
			 
		
	
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								Entry port, 57 mm clear diameter, can be closed by flap, in special positions at the back (please, state location; not possible for IF/IFplus/IFm/IFmplus size 30-75) | 
								F8 | 
							
						
							
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								4 – 20 mA current loop interface (0 to +90°C corresponds to 4 – 20 mA), temperature controller actual value | 
								V3 | 
							
						
							
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								4 – 20 mA current loop interface (0 to +90°C corresponds to 4 – 20 mA), temperature of a Pt100 sensor positioned flexibly in chamber for external temperature monitoring (max. 1 SingleDISPLAY, max. 3 TwinDISPLAY) | 
								V6 | 
							
						
							
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								Fan speed monitoring with switching off the heating and with alarm in case of failure – optional for IFplus only | 
								V4 | 
							
						
							
								
									
	
		
			 
		
	
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								Door with lock and key (safety lock) | 
								B6 | 
							
						
							
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								Door hinged on the left | 
								B8 | 
							
						
							
								
									
	
		
			 
		
	
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								Potential-free contact for combination error message (e.g. supply failure, sensor fault, fuse) | 
								H6 | 
							
						
							
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								Door-open-recognition (only for units with TwinDISPLAY) | 
								V5 | 
							
						
							
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								MobileALERT, notification by SMS in case of any error or alarm of the device (Requires option H6) | 
								C3 | 
							
						
							
								
									
	
		
			 
		
	
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								Castor frame (2-part), height 140 mm | 
								R9 | 
							
						
							
								
									
	
		
			 
		
	
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								Fresh-air filter (filtration efficiency 80 %) mounted at the bottom (for UF/UFplus). For model sizes 30 – 260, subframe or subframe on castors obligatory | 
								R8 |