item: Zeitronix ZT-3 CAN Bus Wideband AFR Air Fuel Ratio Meter w/ZR3 AFR Gauge

The Zeitronix Wideband Air/Fuel ratio meter and datalogging system is a high quality, stand-alone system for use with carbureted and electronic fuel injection engines. The Zt-3 CAN supports CAN Bus communication for easy connection and logging through other CAN Bus devices supporting a wide range of CAN Bus settings.

The new Zt-3 has the same high quality, high precision air fuel ratio readings as our signature Zt-2 wideband. The Zt-3 supports wideband air fuel ratio and lambda readings, adjustable simulated narrowband output and a new configurable linear wideband output for ease of use with engine management systems and 3rd party gauges.

No matter if you have a stand alone engine management system, a piggy back fuel control or a carbureted engine. The Zt-3 Wideband Air Fuel Ratio Meter is a must for serious tuners! Finally you can tune for more power, closer to the edge, precisely monitoring Air/Fuel ratio and datalogging up to 9 hours of data with a blazing rate of 65 samples per second per graph. The Zeitronix Data Logger Software can be utilized as a real time display when using a standard Zt-3 kit with or without the ZR-1 or DashDAQ displays.

The new Zt-3's dimensions are only 3 by 2 by 1 inches.  The case includes slots case for easy zip tie mounting in a tucked away location.

Features:

• 0.1 AFR accuracy
• Operating voltage 10V to 18V
• Switching power supply for oxygen sensor heater
• Precise sensor temperature control
• Reverse polarity protection
• Integrated self resettable fuse
• Positive lock connectors
• Protected inputs and outputs
• Flexible Plug and Play Sensor Harness with a small, easy to route through the fire wall, connector
• Kits available with or without the wideband oxygen sensor included
• Easy to install plug and play kit
• Narrowband Output
• Configurable Wideband Analog Output

Inputs/Outputs:

• Bosch Wideband O2 sensor Input
• Simulated Narrowband Output
• Linear Wideband Output (configurable with a default setup of AFR = Volts * 2 + 9.6
• Serial data output to the Zeitronix ZR-1 AFR, DashDAQ and nGauge displays
• Serial data output for real time datalogging (PC laptop required)
• CAN Bus High and Low

Kit Includes:

• Zt-3 CAN Wideband Controller
• Bosch 5 wire Wideband Oxygen Sensor
• Oxygen Sensor Harness (10 feet length)
• Signal Harness
• Serial datalogging cable with RJ-12 to DB-9 converting plug
• Instructions

Supported CAN Bus Specifications:

• User selectable CAN Bus Speed: 1Mbps, 500 Kbps, 250 Kbps, 125 Kbps
• User selectable CAN Bus ID:  Standard (11 bit) and Extended (29 bit)
• User selectable CAN Bus address: Standard 0x0000 to 0x7FF / Extended 0x0000 to 0x7FFF
• User selectable CAN Bus update rate:  1ms (1000Hz) to 250ms (4 Hz)
• 120 ohm termination: None

CAN Data:

• Data 0, 1 : Lambda 16 bit (Big Endian, Motorola) x 0.001
• Data 2 : Lambda 8 bit x 0.01
• Data 3 : AFR 8 bit x0.1
• Data 7: Lambda sensor status
• 0x00 Sensor OK
• 0x01 Sensor cold (warm up)
• 0x02 Sensor too hot
• 0x04 Sensor heater circuit open
• 0x08 Sensor heater circuit shorted
• 0x10 Sensor maxed at rich lambda

ZR-3 Gauge:

The ZR-3 AFR Gauge works with all Zt-2 and Zt-3 Wideband Systems. The ZR-3 Gauge plugs into the Zt-3/Zt-2 DATA port. Power and serial data is supplied directly through the single connection - there are no additional +12V or ground  wires. The ZR-3 cable length is 5 ft (1.5m).

Mounting Options:

The ZR-3 AFR gauge is only 6/8" (19mm) thick. The back of the gauge is completely flat with cable hidden in a cavity and can be surface mounted almost anywhere inside the car cabin using a piece of Velcro or double sided tape. The ZR-2 base allows the gauge to be mounted in a standard 2” 1/16 (52mm) gauge pod. For additional mounting options the package includes 2 set screws and 2 nuts (4-40 screw size). See the Zeitronix gallery for various gauge installation pictures.

Features:

• Red,  Blue and White digital AFR readout with large 0.4" (10mm) digits
• Stylish, machined, brushed aluminum or black anodized bezel and slim enclosure
• Blue and Red Digits come with black anodized aluminum bezel. White Digits come with natural aluminum bezel.
• Slim 0.75" (19mm) design for flexible 52mm pod or surface mounting options
• High contrast display visible even in direct sunlight