Vehicle Testing
3-5
Direct Ignition Systems
— Set the RPM selector to 1 if the optional orange capacitive
clamp is connected to one coil primary lead. When
connected to an injector lead, the RPM selector depends on
the injector frequency. Check with the vehicle’s RPM
indicator for correct RPM indication on the analyzer.
Waste Spark Ignition Systems: (one coil per two cylinders)
— Set the RPM selector to two.
Fuel Type
Select the correct fuel type used by the vehicle, i.e. Petrol
(Gasoline), LPG (Liquefied Petroleum Gas) or CNG (Compressed
Natural Gas). Arrow down (
) or press 2 for fuel type then
ENTER. Next, press the up and down arrows (
) to display
fuel types. Press ENTER to select.
✓
This is important for correct Lambda values.
Limits
Set the Emission Limits function to ON. Arrow down (
) to the
item or press 3 then arrow up or down (
) and press ENTER
for ON or OFF when the gas measurements are done using limits
for the measured gases. Set to OFF when no limits are used.
Screen Indicators
If limits are on, arrows appear on the Gas display screen to
indicate if the values are as shown below.
—(
Ï
) Up arrow—measured value is above the limit.
—(
Ð
) Down arrow—measured value is below the limit.
—(
✔
) Check—value is correct.
Edit Limits
There are two different Edit Limits functions in the software. The
procedure in this section describes setting limits and can be used
for either limits function.
•
One set is used when the Setup key ( ) is pressed
— Limits set in the Setup ( ) Menu are stored in memory
and retained when there is no power to the
DGA 1000 Gas
Analyzer
.
•
The second set is used with the TSI procedures function
only
for the Catalyst Testing procedure.
— Limits set in the TSI procedure are only in effect for a single
test on the same vehicle and do not remain in memory.
Once a test is completed the values entered are lost.
✓
The Edit Limits function is
not
used for the Non-Catalyst-2
or Catalyst-1 Test Procedures. These procedures have
other limits that can be changed.
✓
The TSI procedure, Set 2 of the Catalytic Test, only
contain entries for CO% and RPM at idle.
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