Description

LSM-11 Emulator Smart Cable for Bosch LSU4.9

Use an LSU4.9 sensor to emulate LSM-11 output! Larger initial cost paired with inexpensive replacement LSU4.9 sensors means amortization converges at 4 sensor replacements!

The LSM-11 Emulator Smart Sensor Cable applies signal processing methods that have a proven track record of many years in use with lambda controls in automotive engine ECUs. The cable's electronics also feature integrated control of the LSU 4.9 sensor heater and the signal conditioning unit for the lambda sensor signals, emulating the output signal of the LSM 11 sensor in the narrow range between -20 mV and +80 mV.

This Smart cable is equipped with an RB150 connector for direct connection to the LSU 4.9 sensors. Although approved for automotive use, IP44 protection on the main module means it should be placed in a vehicle cabin or indoor environment to prevent damage from dust or liquid ingress. Available value added options are: included connector kits to LSM-11 harness, plug and play connectors to LSM-11 harness pre-wired (we do this in house), and LSU4.9 Sensor included / not included. For those doing their own wiring, pinout information can be found under the specifications tab.



About the LSM-11 sensor: The LSM-11 is no longer produced. The only sensors available are old stock with high prices or non genuine sensors whose use should be avoided. It's an older design that is actually a highly tolerant narrow band sensor. In the late 1990's, this was the sensor of choice for aftermarket tuning because no true wideband uego nernst type pump cell sensors were readily available at a reasonable cost. The only available solution at this time is this specific emulator module using LSU4.9 sensors.
For some applications this is an ideal sensor because it simply generates a voltage (as narrow-band sensors do) and does not require the advanced electronics of the Wideband O2 systems using more modern sensors. As such, this sensor is ideal for older or legacy applications where the tuner does not wish to use or cannot use a more modern wideband system as is the case for many ECUs made in the late 1990s and earlier. The LSM11 sensor is the wideband sensor used in older Motec systems, many other ECUs, some boiler, gas, and oil furnace systems.

**We have verified this emulator will NOT work with Autronic or DynoDynamics AF Module**
It will NOT function with other smart air fuel controllers that monitor the sensor for o2%, temperature and heater control.

Associated & Mating Parts

Applications

This smart cable replaces the following applications when paired with a LSU4.9 sensor:

• Bosch 0 258 104 002 (Bosch 0258104002)
• Bosch 0 258 104 005 (Bosch 0258104005)
• Bosch 0 258 104 007 (Bosch 0258104007)
• Some Motec ECUs
• Motec Part Number: 57001
• Motec [ 57001 ]
• Some Autronic ECUs
• Some Autronic Lambda Meters
• Heating systems - Oil burners, gas burners, coal-fired systems
• Industrial processes- Packaging and refuse incineration, gassification
• process engineering
• Drying installations
• Gas analysis, O2 portable measuring
• Humidity measurement
• Many more applications not listed here

Specifications

This smart cable has the following attributes:

Pinout information:
Color Signal Action
Red AC1 Operating voltage
Black AC2 Operating voltage, ground
Blue AOUT_GND Analog output, ground
White AOUT Analog output
Green CONFIG Configuration input (not used)
Pink ERROR Error output


Voltage Supply
Operating voltage 10 V to 14 V DC or
10 V to 13 V AC, 60 Hz ±1 Hz
Heater supply PWM with approx. 100 Hz
Current consumption (typ.) 1.1 A at 12 V DC
Current consumption (max.) 1.7 A at 12 V DC on cold startup
Typ. heat-up time approx. 20 s at 12 V DC


Output voltage -20 mV to +80 mV; LSM11 emulation
Output impedance typ. 100 ohm
Protection against short circuit, max. external voltage -0.3 V to +3 V
Electrical isolation max. 60 V DC (output to supply volt-age)
Error Function
An optocoupler, an LED or a programmable logic controller (PLC) can be connected directly to the "ERROR" error output for signaling an error state.

State "ERROR" output
Error approx. 4 V to ground, short-circuit current approx. 10 mA, internal resistance approx. 400 ohm
No error High impedance / high-resistance