ZrO2-System-V25 SST Sensing

DATA SHEET Zirconia O Sensors 2 Oxygen Measurement System FEATURES Fast response zirconium dioxide (ZrO ) sensor in 2 conjunction with the OXY-LC oxygen sensor interface board Long life, non-depleting technology Integral heating element High accuracy Linear output signal Supply Gas Temp Digital Analogue Response Voltage Output Output Time BENEFITS OUTPUT VALUES Oxygen range (analogue output) 0.125% O 2 No reference gas required or 0.1100% O 2 No need for temperature stabilisation Oxygen range (Modbus RTU) 0.1100% O 2 Variety of probe mounting positions available 28mm, 45mm & 55mm Accuracy after calibration 0.5% O 2 M18x1.5 screw mounting Accuracy after calibration 0.5% O 2 Output resolution 0.01% O 2 TECHNICAL SPECIFICATIONS Response time (1090% step) < 4s Supply voltage Initial warm up time (till stable output) 510mins RS485 output variant: 828V DC Output inactive start up delay (heater warm up) Analogue output variants: 2028V DC From OFF to ON mode: 60s Supply current 600mA max. at 24V DC From Standby to ON mode (RS485 only): 20s 1.2A max. at 12V DC Digital output RS485 (Modbus RTU) Analogue output 420mA load 600 max or 010V load 10k min DC Need help Ask the expert 1 Pump impedance at 700C < 6k Tel: + 44 (0)1236 459 020 Permissible gas temperature -100C to +250C and ask for Technical 2 Gas flow rate 010m/s 3 Operating pressure limits 2601260mbar absolute Mounting thread M18 x 1.5 1) The constant current source used in the pump circuit should be designed to drive a load of up to 6k . 2) With baffle fitted to shield the sensor from direct cooling and pollution by the flue gas refer to DS0122 ZrO Screw Fit 2 NOTES Probe Datasheet for fitment details. 3) Sensor and interface for correct barometric pressure compensation. DESCRIPTION ORDER INFORMATION The Oxygen Measurement System is a complete solution Referring to the tables below will allow you to tailor a system to consisting of a zirconium dioxide oxygen sensor and interface PCB. suit your specific requirements. Dimensional overview given below full specifications for each, For example: Ordering part numbers OXY-LC-A25-455 and including complete outline drawing and electrical interface details O2S-FR-T2-18BM-C will create a system that has a 420mA can be found: analogue output from the board and a sensor probe that has a length of 28mm from the sensor tip to the beginning of the DS0122 ZrO Screw Fit Probe Datasheet 2 M18x1.5 screw mount. DS0058 OXY-LC Oxygen Sensor Interface Datasheet Contact technical sstsensing.com for details. Interface Board Interface Board layout O 2 PCB Output Heater Measure Part Number Type Voltage Always handle the interface board using the correct ESD Range handling precautions. OXY-LC-485 0.1% and 100% Modbus RTU Configurable Current: OXY-LC-A25-455 0.1 to 25% 4.55V DC 420mA Voltage: OXY-LC-V25-455 0.1 to 25% 4.55V DC 010V DC Current: OXY-LC-A100-455 0.1 to 100% 4.55V DC 420mA Voltage: OXY-LC-V100-455 0.1 to 100% 4.55V DC 010V DC Sensor Sensor Part Number Probe Length O2S-FR-T2-18BM-A 55mm O2S-FR-T2-18BM-B 45mm Sensor layout O2S-FR-T2-18BM-C 28mm CAUTION INFORMATION Do not exceed maximum ratings and ensure sensor(s) are operated in As customer applications are outside of SST Sensing Ltd.s control, the accordance with their requirements. information provided is given without legal responsibility. Customers should Carefully follow all wiring instructions. Incorrect wiring can cause test under their own conditions to ensure that the equipment is suitable for permanent damage to the device. their intended application. Zirconium dioxide sensors are damaged by the presence of silicone. For detailed information on the sensor operation refer to application note Vapours (organic silicone compounds) from RTV rubbers and sealants AN0043 Operating Principle and Construction of Zirconium Dioxide Oxygen are known to poison oxygen sensors and MUST be avoided. Sensors. Do NOT use chemical cleaning agents. For technical assistance or advice, please email: Failure to comply with these instructions may result in product technical sstsensing.com damage. General Note: SST Sensing Ltd. reserves the right to make changes to product specifications without notice or liability. All information is subject to SST Sensing Ltd. s own data and considered accurate at time of going to print. DS-0055 REV 5 2016 SST SENSING LTD. 5 HAGMILL CRESENT, SHAW HEAD INDUSTRIAL ESTATE, COATBRIDGE, UK ML5 4NS www.sstsensing.com e: sales sstsensing.com t: +44 (0)1236 459020 f: +44 (0)1236 459026