The ES430 is capable of withstanding the environmental conditions which are typical for exhaust system installations. The ES430 Lambda Module provides lambda (λ) as well as 1/λ, air-fuel ratio (A/F), fuel-air ratio (F/A), oxygen content (O2), and pump current (Ip) measurements through the use of the Bosch LSU 4.9 lambda sensor. The measurement values are calculated from the sensor signal using a sensor- and combustion-specific characteristic curve (linearization). The sampling rate of the signal is software configurable in the range from 0.5 Hz to 2 kHz.
The ES430 provides the host system with multiple types of digital measurement signals simultaneously. In addition, one linearized signal can be put out as analog voltage. The ES430 operates the LSU 4.9 sensor at a constant temperature to ensure measurement accuracy. To prevent damage or degradation of the sensor element, the ES430 provides for heating of the λ sensor even during standby mode. Standby is automatically entered when the module is disconnected from the host PC application. In addition, a mechanism is provided to identify the type of sensor connected via the splitter cable. This eliminates potential errors due to the use of incorrect characteristic parameters.
Functions at a glance
- Supports LSU 4.9 Lambda Sensor
- Measures lambda, 1/lambda, air-fuel ratio, fuel-air ratio, oxygen content, and pump current
- Linearized analog output
- Easily configurable to support different fuels or combustion types
- Automatic detection of sensor or wiring failures
- Operating temperature from -40 °C to 120 °C (-40 °F to 248 °F)
- Rugged waterproof and dustproof housing (IP67)