MEXA-700 Lambda

Overview

With its wide measurement range and rapid response time, MEXA-700 Lambda is ideal for monitoring dynamic changes in all engine types, including lean-burn. Applications range from R&D to engine tuning.

At one-third the size of previous models, MEXA-700 Lambda can be:

  • Mounted on the dashboard of a vehicle for on-road measurements.
  • Stacked one on top of another for multi-channel measurements.
  • Mounted in a 19-inch rack cabinet with other instrumentation. 

After an initial 1-minute warm-up time, a single key-press starts the measurements. Readings are displayed by an LED on the front of the analyzer. An RS-232 interface and 0-5 V analog output allow data collection by a host computer.

Features

Applications

  •     * Lean-burn and/or diesel engine testing
  •     * Engine research and development matching
  •     * Engine tuning
  •     * Catalyst development
  •     * Exhaust gas adjustment
  •     * On-board evaluation
  •     * ECU adjustment

Features

  • Compact - can be mounted on a dashboard, on a table-top, or in a 19-inch rack.
  • Quick response - typical 80 ms.
  • Wide range measurement - suitable for any engine type, including lean-burn.
  • Accuracy of UEGO sensor guaranteed. Every unit undergoes thorough inspection.
  • Stackable for multi-channel measurement.

Options

  • AC power adapter: Input 100-240 V AC(50/60 Hz), output 13 V DC
  • Rack mounting kit: For one or two MEXA-700 Lambda units, with an AC power adapter
  • Additional cable for sensor: 5/20 m
  • Calibration unit: For generating the calibration gas

Manufactured by HORIBA

Specifications

MEXA-700 Lambda Specifications

Ranges

Air/Fuel ratio: 0.0-99.9 (at H/C=1.85, O/C=0.00)

Excess air ratio (Lambda): 0.00-9.99 (at H/C=1.85, O/C=0.00)

 

Oxygen (O2): 0-25 vol%

 

Response Time

T63 within 80 ms typical; 150 ms maximum

Accuracy>

Model gas of room temperature, atmospheric pressure is used, in from 9.5 to 60 A/F range

 

Within ± 0.3 A/F (at approx. 9.5 A/F)
Within ± 0.1 A/F (at approx. 14.7 A/F)
Within ± 0.3 A/F (at approx. 20 A/F)
Within ± 0.7 A/F (at approx. 30 A/F)
Within ± 1.0 A/F (at approx. 40 A/F)
Within ± 1.5 A/F (at approx. 50 A/F)
Within ± 2.0 A/F (at approx. 60 A/F)

Warm-up>

Approx. 1 minute after start-up of the analyzer

Acceptable>

For sensor:
0-294 m/s2
0-30 G

Calibration>

For lean condition: O2 or atmospheric air
For stoichiometric condition: N2+H2O (mixed gas)
For rich condition: CO+H2+CO2+H2O / N2 (mixed gas)

Sample Gas Conditions

Without water drop and mist
Acceptable temperature: from -7 to 900° C

Ambient Conditions

For main unit: 5 to 45° C; less than 80% R.H.

Dimensions>

W x D x H (excluding protrusions)

130 x 170 x 75 mm
5.1 x 6.7 x 2.9 in

Approx. 1.6 kg / 3.5 lb

Power

10-15 V DC, 50 W

Outputs

Analog: 0-5V DC, 1 channel, full scale is changeable
Digital: RS-232C

Accessories

Included
Cable for sensor (10 m)
DC power/output cable
Recorder cable
2 Fuses

Optional
AC power adapter: input 100-240 V AC, 50/60 Hz; output 13 V DC

Schematics

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