This Series is a range of high quality, low cost, compact sensors which measure the temperature of inaccessible or moving objects and materials. They measure temperatures from -20 to 500°C (-4 to 932ºF), accurately and consistently, with an outstanding response time of 240 ms. Infrared (IR) sensors are available as either 2- or 4-wire units. Twowire IR sensors transmit the target temperature as a 4 to 20 mA output and offer a simple solution for most non-contact temperature measurement applications. Four-wire IR sensors transmit the target temperature as a 0 to 50 mV or thermocouple output (Type J, K or T) plus the internal sensor temperature as a 4 to 20 mA output. This second output can be used to ensure that the sensor is being operated within the correct ambient temperature 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. IR sensors are fitted with precision germanium lenses for accurate optics.
SPECIFICATIONS Accuracy: ±1% of reading or ±1ºC whichever is greater Repeatability: ±0.5% of reading or ±0.5ºC whichever is greater Emissivity: Fixed at 0.95 Response Time, t90: 240 ms (90% response) Spectral Range: 8 to 14 µm Supply Voltage: 24 Vdc (28 Vdc max) Min Sensor Voltage: 6 Vdc Max Loop Impedance: 900 O (4 to 20 mA output) Output Impedance: 56 O (voltage/thermocouple output) Mechanical Construction: Stainless steel Dimensions: 103 L x 18 mm D (4.06 x 0.71") Thread Mounting: M16 x 1 mm pitch Cable Length: 1 m (3.3') (included) longer lengths available to order Weight with Cable: 95 g (3.35 oz) Environmental Rating: IP65 Ambient Temperature Range: 0 to 70ºC (32 to 158ºF) Relative Humidity: 95% max non-condensing