Product Specification

Generic Sensor Board
"GSB" (Generic Sensor Board) is a universal electronic module for all sensor types. It can be used both for controlling the amperometric and potentiometric sensors.

At this module, sensor temperature is precisely controlled to a constant temperature by microcontroller. The linearized output signal is available as a voltage signal (0-5V), current signal (4-20mA) or digital via RS232.

Electronic sensor interface for oxygen sensors
? Sensor interface board for direct integration in customer application
? Demonstration board for laboratory sensor evaluations

GSB - Generic Sensor Board Main Features
? Microcontroller based interface circuit
? Compatible O2-Sensor-types:
      Standard: SO-zz-xxx (amperometric sensor type)
      On request: SP-zz-xxx (ampero-potentiometric sensor type)
? External voltage supply: 12Vdc (possible range 6-25Vdc)
      typical current consumption 200mA @ 12Vdc
? Sensor calibration
      Single point calibration at specified O2-concentration
      heater resistance calibration to ensure correct sensor temperature
      Calibration values are stored in nonvolatile memory
      possibility to purchase a factory calibrated set (GSB+sensor)
? Linear sensor output signal according to O2-concentration:
      analog 0-5V (Vout)
      analog 4-20mA (Iout)
      digital via RS232
? Configurable sensor operation parameters
      6 preinstalled settings for different sensor types
      optional: customized parameters, e.g. :
             ? heatup time and heater operation mode
             ? sensor voltage
             ? Measurement range and corresponding output signals
? Heater temperature control:
      4-wire heater resistance measurement
      constant heater resistance control for temperature compensation
      optional: constant heater voltage or constant power control
? Sensor connection:
      connection via 6pol RAST 2.5
      connection via screw terminal
      optional: directly soldered on GSB-PCB

GSB - Generic Sensor Board Advanced options on request
? Configurable digital I/Os, e.g.:
      Open collector outputs to switch external loads
              ? based on programmable O2-concentration thresholds
              ? programmable switching hysteresis
      customized sensor status indication, e.g. error indicator
?  Configuration via RS232
      flexible configuration of sensor operation parameters
      configuration interface for Windows-OS
? Customized GSBs
      to implement customer specific digital or analog interfaces
      customer specific terminals as replacement for screwed terminals
      cost optimization for higher volumes
? Customized firmware

GSB - Generic Sensor Board Basic Specification
Absolute maximum ratings
Values beyond these limits might cause permanent damage