TE-Wideband 1.5 Prebuilt

This unit is no longer offered - refer to the WBo2 pages.

The Tech Edge version 1.5 wideband unit is the second of a growing range of wideband oxygen sensor interfaces. As a pre-built unit it's supplied as shown, and also available as a DIY Kit. Download the version 1.5 User's Manual (700k PDF).

Image shows the (TE-WB 1.5) and to the left is Data Access cable (D/A cable) which provides a convenient connection point for the three (optional) inputs and the simulated narrowband output. Not shown is the optional TE-5301 display, the cable to the sensor and the L1H1 NTK UEGO sensor itself.

The TE-WB 1.1 is similar to 1.5 but without the inbuilt RS232 capability to log AFR, RPM and two other analogue voltages.

ORDER the TE-WB 1.5

Version 1.5 Features

• Accurate AFR measure from below 10 to above 25 (petrol/gasoline stoic=14.7). The inbuilt heater controller (constant voltage) and analogue PID feedback loop provide much greater accuracy than units based on (4 wire) sensors such as the LSM-11.
• Linear voltage output (Vlin) zero to 5 Volts for connection to external logger or dumb visual display. Output voltage defines AFR from formula AFR = 9 + (2 * Vlin). AFR is linearised and updated at least 20 times/sec.
• Works with battery voltages down to 11 Volts (especially convenient for bike and kart usage) using an analogue ULDO (Ultra Low Drop Out) regulator.
• Inbuilt data collection for wideband, RPM and two A/D channels is provided via an RS232 output. Two spare 10 bit A/D converter channels provide inputs that can be connected to engine sensors such as TPS or MAP. An RPM input for connection to a coil or ECM provides a datum when logging. Palm and PC based software allows saving information for later analysis.
• A simulated Narrowband output (with adjustable stoic point) provides a sensor signal for the ECU when the original (narrowband) sensor has been removed. This enables wideband measurements without adding an extra bung in your exhaust system.
• Reverse polarity and inbuilt fuse protection are provided to ensure voltage spikes (from faulty alternator) and inadvertently reversed battery power do not damage the unit.
• Free-air re-calibration adjustment (to set the free-air Vout to 4.00 Volts precisely) and adjustable stoic voltage setting (for 2.50 volts stoic Vout) mean the highest accuracy can be obtained over time, and as the sensor ages.
• Positive power indication (greed LED), and Ip enabled indication (red LED) provide greater user feedback.