Product Description:

OXY-LC-A25-455 OXY-LC-485 Oxygen Sensor Interface Board Is Used For Measuring Air Pressure

Features:

Provides the electronics necessary to power and

control SST’s range of zirconium dioxide (ZrO2)

sensors

 Built in pressure sensor for barometric pressure

compensation

 Interface mounted screw terminals for easy wiring with

reverse voltage and transient overvoltage

BENEFITS

Adaptive software filtering provides a fast sensor

response coupled with a stable oxygen output

High accuracy linear output

TECHNICAL SPECIFICATIONS

Supply voltage

RS485 variant: 8—28VDC

Analogue variants: 20—28VDC

Supply current 600mA max. at 24VDC

1.2A max. at 12VDC

Digital output RS485 (Modbus RTU)

or PWM

Analogue output 4—20mA; load 600Ω max

or 0—10VDC; load 10kΩ min

Temperature limits

Storage: -40°C to +85°C

Operating: -30°C to +70°C

Operating pressure limits1 260—1260mbar absolute

1) Sensor and interface for correct barometric pressure compensation.

2) Prolonged operation below 0.1% O2 can damage the sensing element.

3) Analogue output variants accuracy stated is valid when calibrated at the default calibration value. RS485 variant

accuracy stated is valid when calibrated at the default 20.7% O2 over the range 0.1 to 25% O2. For maximum accuracy

above 25% O2 the interface and sensor should be calibrated to full scale of the required range using certified gas.

Oxygen range (analogue output) 0.12—25% O2

or 0.12—100% O2

Oxygen range (Modbus RTU) 0.12—100% O2

Accuracy after calibration3 0.5% O2

Repeatability after calibration 0.5% O2

Output resolution 0.01% O2

Response time (step 10—90%)

Fast response sensor connected: 4s

Standard response sensor connected: 15s

Initial warm up time (till stable output) 5—10mins

Output inactive start up delay (heater warm up)

From OFF to ON mode: 60s

From Standby to ON mode (RS485 only): 20s

Manufacturer: SST Sensing
Product Type: Pressure Sensor Development Tools RoHS:
Product: Sensor Interface Boards
Type: Oxygen Sensor
Tools for evaluation: Barometric Pressure
Operating power supply voltage: 8 V to 28 V
Trademark: SST Sensing
Description/Function: Oxygen Sensor Interface Board
Interface type: RS485
Maximum operating temperature: + 70 °C
Minimum operating temperature: - 30 °C
Product type: Pressure Sensor Development Tools 1
Subcategory: Development Tools
Part Number Alias: M-OXY-LC-A25-455
Unit Weight: 46.164 g

Specifications: