
Optical Dissolved Oxygen Sensors
High performance optical in-line probes
Product
| 
				 
					 InPro 6860 i  | 
			
				 
					Easy handling – exceptional performance 
				
					• No electrolyte or polarization time 
				
					required 
				
					• Automatic stability control for superior 
				
					measurement stability 
				
					• Plug and Measure for fast, error-free 
				
					start up 
				
					• Pre-calibration in the lab with 
				
					iSense 
				
					• Supports analog (nA / mA) and digital 
				
					(Modbus) direct system integration 
				
					• Improved optical technology ensures 
				
					high accuracy 
			 | 
		
| 
				 
					 InPro 6960 i  | 
			
				 
					Specifically for wort aeration 
				
					• Long maintenance intervals thanks to 
				
					robust design of sensing element 
				
					• One-minute maintenance 
				
					• Full ISM functionality for fast start-up and 
				
					proactive maintenance 
				
					• Customizable internal LED switch-off option 
				
					for extended sensing element lifetime 
				
					• Hygienic design minimizes contamination 
				
					risks 
				
					• No electrolyte or polarization time required 
			 | 
		
| 
				 
					 InPro 6970 i  | 
			
				 
					Top performance and intelligent diagnostics 
				
					• Detection down to 2 ppb in beer and 
				
					water 
				
					• Fast response time minimizes beer losses 
				
					• Sensing element is immune to pressure 
				
					shocks and extreme CIP cycle conditions 
				
					• Plug and Measure simplifies handling 
				
					and ensures fast, flawless start up 
				
					• Predictive diagnostics for proactive maintenance 
				
					• Customizable internal LED switch-off option 
				
					for extended sensing element lifetime 
				
					• No electrolyte or polarization time required 
			 | 
		
Specifications
| InPro 6860i | Inpro 6960i | Inpro 6970i | |
| Measurement principle | optical | ||
| Working conditions | |||
| 
				 Permissible pressure range during measurement  | 
			
				 0.2…6 bar absolute 2.9…87 psi absolute  | 
			
				 0.2…9 bar absolute 2.9…130.5 psi absolute  | 
			
				 0.2…12 bar absolute 2.9…174 psi absolute  | 
		
| Mechanical pressure resistance | 
				 max. 6 bar absolute max. 87 psi absolute  | 
			
				 12 bar absolute 174 psi absolute  | 
		|
| Permissible temperature range during measuring | 
				 0…60°C 32…140°F  | 
			
				 0…40°C 32…104°F  | 
		|
| Mechanical temperature resistance of the sensor shaft | 
				 –20...140°C –4…266°F steam-sterilizable autoclavable  | 
			
				 –20...121°C –4…250°F steam-sterilizable  | 
		|
| Analog/digital Interface | |||
| nA Output: (InPro 6860i /../ nA) | 60 nA at air (25 °C, 1013 mbar) | ||
| mA Output: (InPro 6860i /../mA | 4 to 20 mA (active) | ||
| Analog temperature Output: | NTC 22 kΩ | ||
| Digital Interface: | 
				 Modbus RTU on RS485 – Baudrate: 4800,9600, 19200 (default), 38400, 56600, 115000 – Device address: 1 (default to 32)  | 
		||
| Power requirements | 
				 Umin = 19.5 VDC Umax = ≤25 VDC Pmax = 0.75 W ➝ 33 … 40 mA  | 
		||
| Sensor performance | |||
| Operating range | 8 ppb to 60% O2 saturation | 2 ppb to 2000 ppb | |
| Accuracy in aqueous media | ≤ ±[1%+8 ppb] | ≤ ±[1%+2 ppb] | |
| 
				 Response time at 25°C (77°F) (air › N2  | 
			t 98% < 20 s, < 70 s (InPro 6860i) | ||
| Design features | |||
| Temperature compensation | automatic with built-in RTD | ||
| Cable connection (digital) | data cable 5 pin,VP8 (InPro6860i) | ||
| Wetted O-rings | EPDM FDA approved (other materials on request) | ||
| O2 selective membrane material | silicone, PTFE (InPro 6860i) | ||
| Wetted sensor parts | s / steel 1.4404, [AISI 316L] PPS with material certificate 3.1 (other materials on request) | ||
| Surface roughness of wetted s / steel parts | |||
| (EN1320:1996) | Ra <0.4µm [16µin] | ||
| Certificates (MaxCert™) | |||
| Quality (final inspection certificate) | yes | ||
| FDA/USP Class VI | yes | ||
| Material certificate 3.1 | yes | ||
| Surface finish certificate 2.1 | yes | ||
| ATEX Certificate | InPro 6860i/12/ xxx /mA only | ||