WBo2 3E1/3E2 Wideband with Display

WBo2 version 3E1 and 3E2 units, introduced in November 2006, are feature and performance upgrades of the older 2E0 unit. The 3E1/2 units are equivalent to the 3A1/2 units with the addition of an inbuilt display. The 3A and 3E units even share the same label.

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Tech Edge  3E1/3E2 Features

  • Inbuilt 4 digit display (this is the primary difference with the 3A1/2).
  • Accuracy within 0.1 AFR (Lambda +/- 0.005).
  • 10.5 to 19.5 Volt DC operation (up to 3 Amps).
  • Uses LSU 4.0/4.2 (Bosch 6066/7057 family) or NTK (L1H1/L2H2) sensor.
  • WBlin Configurable wideband 5 Volt output (12 bit accuracy).
  • SVout for LD01 display (10 bit configurable too).
  • NBsim narrowband (10 bit configurable too).
  • 3 analogue 0 to 5 Volt inputs sampled at up to 40/sec.
  • 4 thermocouple inputs (can be converted to analogue inputs).
  • RPM input from Tacho or ECU for logging.
  • PULSE input from VSS sensor or cruise control for logging.
  • ALARM output with configurable software triggers, for shift lights, buzzers etc.
  • 5 volt output for powering external sensors such as MAP or TPS.
  • Auto-cal button, one-touch calibration (with sensor in free-air).
  • Free logging software (optional extra feature upgrade available).

3E2 also includes logging and USB options :

  • USB Full-Speed (12b/s) virtual serial port - designed for modern laptop computers without RS232 ports. 100% compatible with existing PC software.
  • On-board 1 M Byte logging memory downloads via USB and RS232 channels to PC.

Note that the display on the 3E units is a simplified version of the LD02 display and it does not have some of configuration facilities available on that unit. An external display can be connected to the 3E unit.

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The 3A and 3E are equivalent except for the 4 digit inbuilt display of the 3E. Both units are described in the 3A1/3A2 & 3E1/3E2 common description page.