12
cursor to the third character and press Key-▲ or Key-▼ for reset. Likewise, perform
revision until the reset of the 8th character is done. Characters from the 2nd to 7th can
choose from the Arabic numerals from 0 to 9 or the 26 capital English letters from A to Z.
After reset of number plate is done, press Key-E for confirmation and cursor shall be at
√BRP12345
（
supposed to be new number plate
）
When cursor is at
IDLE
it may be reset to be Double idle and General
by pressing
Key-▲ or Key-▼.
Note: Prior to starting up test, reset of number plate must be done (if number plate is not
needed sign ‘×’ before number plate must be chosen). And test mode also must be
chosen from general, idle and double idle. before test can be started up.
Press Key-S to choose
ESC
，
and Key-E to return to main menu.
4. Test Procedure
4.0 Preparation prior to test
4.0.1 The instrument has entered into main menu display after 10 minutes’ preheat.
4.0.2. Connect probe with inlet of water trap on the back panel of the instrument with a
5-meter-long plastic tube. Equipped with a speed and oil temperature sensor: speed
sensor head is inserted into the cigarette lighter in the car ( or sleeve crocodile clip, clip in
the car battery on the positive and negative pole ); the oil dipstick out, the oil temperature
probe insert.
The instrument has three kinds of test mode, namely General, idle and double idle.
General, in which instantaneous test data is displayed continuously, applies to observing
and monitoring real-time value of exhaust gas emission from motor vehicle and test under
ASM.
Idle is arranged according to regulations on idling procedure from GB/T3845-93
"measurement method for pollutants at idle speed from vehicle with prefot engine.”.
Double idle is arranged according to regulations on D. idling procedure from Appendix C
of GB/T3845-93 "Test method for pollutants at D. idle from vehicle”.
The instrument also applies to users without tachometer or OIL. T probe.
4.1 Test with Idle speed
