ES63x – Lambda modules

The ES630/ES635 (single-channel) and ES631/ES636 (dual-channel) Lambda Modules support Bosch’s broadband oxygen sensors, including Bosch’s LSU ADV sensor with expanded measurement range and fast response characteristics, Bosch’s LSU 5.1 lambda lean sensor, and NTK’s ZFAS®-U2 broadband lambda sensor. They measure lambda values in the range between 0.6 and 16. Thanks to adjustable limitation of Nernst and pump voltages, the LSU ADV and LSU 5.1 sensors can be operated with optimum effectiveness using the ETAS Lambda Modules.

The algorithm used by the ES63x modules to regulate the pumping current can be adapted to suit the specific sensor. Thanks to a TEDS code inside the sensor or wiring connection, the devices recognize the sensor type, preventing improper sensor operation. The devices automatically detect sensor and wiring defects.
From ES63x onward, the Lambda Modules record the pumping current at a rate of 2 kHz. In the same phase, they use this measurement to calculate the oxygen content in the exhaust gas as well as the values and reciprocals of the ƛ and air-fuel ratio variables. For the conversion, it is also possible to specify and store application-specific characteristic curves. The fast scan rate enables the devices to respond to sensor signal changes with fast displays and fine timeline resolution.

Your benefits

ETAS Lambda Module for the precise determination of lambda values, air-fuel ratios, and oxygen concentrations in exhaust gas
Available in single- or dual-channel versions
Compatible with Bosch broadband lambda sensors, including Bosch’s LSU ADV sensor with expanded measurement range and fast response characteristics, Bosch’s LSU 5.1 lambda lean sensor, and NTK’s ZFAS®-U2 broadband lambda sensor
Integrated measurement of air pressure
Optional measurement of exhaust gas pressure
Automatic compensation of lambda sensor signal when pressure changes
Bright display for standalone operation
Measurement, ECU calibration, and diagnostics using INCA
Open interfaces and documented drivers for integration into existing tool landscapes
Can be used in existing measuring installations instead of ETAS’s LA4 Lambda Module

Technical data

Size and weight
Size and weight Dimensions (H/W/D)	72 x 128 x 174 mm / 2.8 x 5 x 6.9 in
Size and weight Weight	905 g / 2.0 lb (ES630), 920 g / 2.03 lb (ES635)
Size and weight	1055 g / 2.33 lb (ES631), 1085 g / 2.39lb (ES636)
Size and weight Environment
Size and weight Temperature range	-40 °C to +70 °C (-40 °F to +158 °F) (operation)
Size and weight	-40 °C to +85 °C (-40 °F to +185 °F) (storage)
Size and weight Altitude	Up to 5.000 m / 16,400 ft
Size and weight Tested for	Mechanical shock, vibration, fall, temperature shock, temperature alteration according to DIN EN 60068 res. ISO 16750
Size and weight Power supply module
Size and weight Operating voltage	6 V to 50 V DC
Size and weight Power consumption (at 13.5 V DC)	6.5 W typ. (ES630/ES635)
Size and weight	7.5 W typ. (ES631/ES636)
Size and weight Power supply sensor heater
Size and weight Operating voltage	9 V to 28 V DC
Size and weight Power consumption (at 13.5 V DC)	9 W typ. (one LSU 4.9 sensor exposed to air, ES630/ES635) 18 W typ. (two LSU 4.9 sensors exposed to air, ES631/ES636)
Size and weight Sensor interface
Size and weight Channels	1 (ES630/ES635) / 2 (ES631/ES636), including control and supply of sensor heater
Size and weight Supported lambda oxygen sensors	Bosch LSU 4.2, LSU 4.7, LSU 4.9, LSU 5.1, LSU ADV-G, and NTK ZFAS®-U2
Size and weight Sensor connection	The different oxygen sensors are connected by different adapter cables to the ES63x modules. The sensor type is coded in the adapter cable or the sensors of type LSU ADV and LSU 5.1 delivered by ETAS. The sensor type will be automatically detected by the modules.
Size and weight Measurement signals and ranges[1]	Lambda λ: 0.6 to 16
Size and weight	1/λ: 1.67 to 0.0625
Size and weight	Air-fuel ratio A/F: 8.5 to 200
Size and weight	Fuel-air ratio F/A: 0.005 to 0.118
Size and weight	Oxygen content O2: 0 % to 25 %
Size and weight	Pump current Ip of the λ sensor: -10 mA to 10 mA
Size and weight	Ambient pressure Pamb: 600 hPa to 1150 hPa
Size and weight	External pressure sensor Pext (ES635/ES636): 500 hPa to 3000 hPa
Size and weight Measurement sampling rates	0.5 Samples/s to 2 kSamples/s
Size and weight	Pamb: 1 Sample/s
Size and weight Monitoring signals and ranges	Internal resistance of the Lambda sensor Ri: 0 Ohm to 2000 Ohm[1]
Size and weight	Temperature of sensor ceramic Tcer: 500°C to 1000°C
Size and weight Monitoring sampling rates	0.5 – 20 Samples/s
Size and weight Oxygen sensor supply and control
Size and weight Sensor heater supply and control	Configurable for each channel, possible to keep sensor at operational temperature also when module is off
Size and weight Heater supply	0 V to 18 V / typ. 5 A
Size and weight Heatup curve	Output voltage configurable in equidistant steps by use of a csv-file. Width of the steps is a multiple of 50 ms. Maximum step width: 500 ms
Size and weight Pump current controller	Programmable for adaptation on future sensors
Size and weight Display
Size and weight Type	Dot matrix vacuum fluorescence display (128 x 64 pixels)
Size and weight Layout	Display of 2 signals plus status message
Size and weight Keyboard	On front panel, 6 keys: 4 x softkey, 1 x forward, 1 x backward
Size and weight Analog output
Size and weight Channels	1 (ES630/ES635) / 2 (ES631/ES636), electrically isolated
Size and weight Output voltage	0 V to 10 V
Size and weight Output signal	λ, 1/λ, A/F, F/A, O2, Ip, Pamb, Ri, or Tcer, configurable by software
Size and weight Output impedance	Virtually 0 Ohm, short circuit protected and protected against external voltages of up to 28 V
Size and weight Output current	max. 10 mA
Size and weight Host interface
Size and weight Ethernet	100 Mbit/s Base-T Ethernet, Full-Duplex required, XCP-on-UDP/IP protocol, for each input channel measurement signals of different type can be provided concurrently to host system
Size and weight IP address	Dynamic via INCA or configuration tool (default 192.168.40.44)
Size and weight RS-232, SMB protocol	38400 bit/s, 8 bits in parity, 1 stop bit
Size and weight Support by ETAS Software
Size and weight	Supported by INCA V6.2.1 (ES63x) / INCA V7.1 (ES63x with LSU 5.1 probe) and up by add-on (part of the ES63x delivery), INTECRIO V4.0 (ES63x) and up, ASCET-RP V6.1.3 (ES63x ) and up, HSP V10.5 (support of the LSU 5.1 probe by ES63x) and up, ES63x configuration and integration tool for XCP applications, universal driver for integration into third-party software applications without XCP interface (V1.5.0 and up)
Size and weight Compatible ETAS compact hardware modules
Size and weight	Prototyping and Interface Module ES910, Network and Interface Modules ES51x and ES59x, Network Module ES600, Micro Measurement Modules ES4xx

Notes
[1]Minimum values, actual values depend on the characteristic curve of the individual lambda oxygen sensor.
This product has been developed and released for use in automotive applications. For usage in other domains please contact your ETAS representative.

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