INSTRUCTIONS FOR:
LAMBDA TESTER &
SIMULATOR
MODEL No:
VS925.V2
Thank you for purchasing a Sealey Product. Manufactured to a high standard this product will, if used according to these
instructions and properly maintained, give you years of trouble free performance.
IMPORTANT:
PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS,
WARNINGS AND CAUTIONS. USE THIS PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR
WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE OR PERSONAL INJURY AND WILL
INVALIDATE THE WARRANTY. PLEASE KEEP INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
WARNING!
Ensure Health and Safety, local authority and general workshop practice regulations are
adhered to when using tools.
DO NOT
use tester if damaged.
Maintain tester in good and clean condition for best and safest performance.
Ensure that a vehicle which has been jacked up is adequately supported with axle stands.
Wear approved eye protection. A full range of personal safety equipment is available from your Sealey
dealer.
Wear suitable clothing to avoid snagging. Do not wear jewellery and tie back long hair.
Account for all tools and parts being used and do not leave any on or near the engine.
Ensure the handbrake is applied on the vehicle under test and if the vehicle has automatic transmission,
put it in the
PARK
position.
Always ensure there is adequate ventilation when working with engine running. Emissions of carbon
monoxide (if inhaled) can cause serious damage to health.
WARNING!
Lambda/O
2
sensors are located within the exhaust system, when working on them be well
aware of extremes of heat.
Indicator Panel:
The tester can indicate which wire on the Lambda sensor the unit is
connected. This tells the operator which is the signal wire for
measuring the Lambda output and also identifies the presence of the
heater supply voltage (where applicable) and the sensor ground
condition.
Refer to fig 1.
Tests Zirconia and Titania lambda sensors and ECU. Suitable for 1, 2, 3 and 4 wire sensors, heated and
unheated. LED display shows crossover signal from sensor. Simulates rich or lean mixture signals to check
ECU response. Insulation-piercing clip for quick and easy connection plus display to confirm wire identity.
Features a low battery indicator and powered by 9V battery (supplied).
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V
Operating Temperature . . . . . . . . . . . -10°C to 50°C
Storage Temperature . . . . . . . . . . . . . -20°C to 60°C
Size (L x W x D) . . . . . . . . . . . . . . . . . 147x81x29mm
Weight (main body only) . . . . . . . 250g (inc. battery)
2. INTRODUCTION & SPECIFICATIONS
Original Language Version
VS925.V2 Issue: 1 - 24/06/10
fig.1
