PyroCouple Series Operators Guide Guide de loprateur pour la srie PyroCouple PyroCouple-Serie Bedienungsanleitung Serie PyroCouple Gua del operario Serie PyroCouple Manuale di istruzioneenglish PyroCouple non-contact infrared sensors measure temperatures from -20C to 500C and provide either a linear 4 to 20 mA output, a voltage output or a thermocouple output. This range of output signals is compatible with almost any indicator, controller, recorder, data logger etc., without the need for special interfacing or signal conditioning. They are suitable for most materials such as food, paper, textiles, plastics, leather, tobacco, pharmaceuticals, chemicals, rubber, coal and asphalt but not materials with a low emissivity, for example polished metals. PyroCouple sensors are available as either two-wire or four-wire units. Two-wire PyroCouple sensors transmit the target temperature as a 4-20 mA output and offer a simple solution for most non-contact temperature measurement applications. Four-wire PyroCouple sensors transmit the target temperature as a 0-50 mV or thermocouple output (type J, K or T) plus the internal sensor temperature as a 4-20 mA output. This second output can be used to ensure that the sensor is being operated within the correct ambient tem- perature limits and prevent damage caused by overheating or overcooling. It can also be used to give an approximate indication of the air temperature surrounding the sensor. Specification Temperature Range vs Field-of-View table Field of View -20C to 100C 0C to 250C 0C to 500C 2:1 PC21LT-X PC21MT-X - 15:1 PC151LT-X PC151MT-X PC151HT-X 30:1 PC301LT-X PC301MT-X PC301HT-X 5mm 100mm PCCFLT-X PCCFMT-X PCCFHT-X Output table Model-X Target Temperature Output Sensor Temperature Output -0 4-20 mA Not available -1 0-50 mV 4-20 mA -2 Type T thermocouple 4-20 mA -3 Type J thermocouple 4-20 mA -4 Type K thermocouple 4-20 mA General Accuracy 1% of reading or 1C whichever is greater Repeatability 0.5% of reading or 0.5C whichever is greater Emissivity 0.95 (fixed) Response Time 240 ms (90% response) Spectral Response 8 to 14 m Supply Voltage 24 V DC (28 V DC max.) Sensor Voltage 6 V DC min. Maximum Loop Impedance 900 ohms (4-20 mA output) Output Impedance 56 ohms (voltage/thermocouple output) Mechanical Construction Stainless Steel Dimensions 18 mm diameter x 103 mm Cable Length 1 m as standard (up to 30 m available on request) Weight with 1 m Cable 95 g environMental Environmental Rating IP65 Ambient Temperature Range 0C to 70C Relative Humidity 95% maximum non-condensing 2