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DescriptionThe OS151-USB Series measures temperatures from -40 to 1000°C (-40 to 1832ºF) accurately and consistently, with an outstanding response time of 240 mS. The 4 to 20 mA output is compatible with almost any indicator, controller, recorder, data logger etc. without the need for special interfacing or signal conditioning. OS151-USB has 15:1 optics making it suitable for most applications. OS301-USB is specially designed for distant targets and has an optical resolution of 30:1. OS801-USB is designed for small targets and measures a spot size of 5 mm (0.20") diameter at 100 mm (3.9") distance. All these sensors are fully configurable from a PC using the software and USB cable supplied. This user friendly software enables the user to set the range and emissivity, compensate for reflected energy; apply filtering; select max, min, average or instantaneous readings; and peak or valley hold processing. These features can also be monitored and adjusted by an OPC (open process control) client. Other features include data acquisition, alarms and a scrolling graphical display. The sensor will operate with the 4 to 20 mA cable connected, the USB cable connected, or both. The USB cable has an IP65 connector at the sensor end. An IP65 cap protects the sensor when the USB cable is not connected. † Refer to page J-3 for NIST calibration ordering information.