User Manual

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
3.1 I D

2) Alphanumeric display
3) Analog LED bargraph


6) Sensor type select button
7) Simulate sensor “LEAN” condition
8) Response time test button
9) Test leads with clips
3.2.2 A
Numerical readout
During normal operation, the alphanumeric display shows the number of
crossings per second (cross-count) of the oxygen sensor signal.
Selection and message readout
When selecting the type of sensor, performing functions or during certain error
conditions, the alphanumeric display shows two characters codes that identify
the selection, status of a function, or error condition. Below is a table with display
readouts and their descriptions.
Display Description
Zirconia sensor selected
Titanium sensor selected for 1 Volt systems
Titanium sensor selected for 5 Volt systems

Passed the response time test ( < 100 ms)



Test leads connected to heater wire(s) or circuit with more than 6 Vdc


Open circuit detected: check for loose connections
Ground connection detected: check test leads connections

This message will display momentarily when selecting the demo mode
3.2 DD
3.2.1 A
Real time signal

oxygen sensor in real time.
Maximum


Minimum


Average
-
gen sensor output, in order to detect rich or lean

Maximum
Real time signal
Average
Minimum
.
• If no crossings (cycles) of the input signal are detected for more than 10 sec-

be displayed.
• 



Zirconia sensors, but connected to a Titanium 5 Volt system.


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