Oxygen Sensor Interface Board

O2I-Flex Oxygen Sensor Interface Board FEATURES

• Provides the electronics necessary to power and control SST’s range of zirconium dioxide (ZrO2 ) sensors
• Externally triggered automatic or manual calibration. Calibration can also be initiated via an on-board push button
• Power and sensor operating LEDs
• Removable polarised screw terminals for easy wiring


O2I-Flex Oxygen Sensor Interface Board BENEFITS
• Adaptive software filtering provides a fast sensor response coupled with a stable oxygen output
• High accuracy linear output
• Can be calibrated in fresh air (20.7% O2 ) or in any other known O2 concentration


O2I-Flex Oxygen Sensor Interface Board TECHNICAL SPECIFICATIONS

Supply voltage	24V DC ± 10%
Supply current	600mA max. at 24V DC
Digital output	RS232
Analogue output	4 ~ 20mA; load 100 ~ 600Ω or  0 ~ 10V DC ; load 10kΩ min
Temperature limits      Storage:     Operating:	-10°C to +70°C -10°C to +70°C
Oxygen pressure limits	1 ~ 1000mbar

O2I-Flex Oxygen Sensor Interface Board OUTPUT VALUES

Oxygen range (analogue output)	0.1 ~ 25% O2 or 0.1 ~ 100% O2
Oxygen range (RS232 output)	0.1 ~ 100% O2
Accuracy after calibration	1% O2
Repeatability after calibration	0.5% O2
Output resolution:     0 - 10V DC:     4 - 20mA:     RS232:	0.01V 0.01mA 0.01% O2
Response time (step 10 - 90%)     Fast response sensor connected:     Standard response sensor connected:	< 4s < 15s
Initial warm up time (till stable output)	5 ~ 10mins
Output inactive start up delay (heater warm up)	60s