Filter
Top Products
If the analyzer operates intermittently on dc power
The analyzer powers down when operating on dc power if no measurement has been
made within 30 minutes.
Check that the dc power source can supply the required power.
The dc power source must have a true range of 10.8 to 30.8 Vdc. At the minimum
voltage of 10.8 Vdc, the dc power source must be able to supply approximately
8.7 amps for a two-channel analyzer and 12.2 amps for a four-channel analyzer. The
voltage loss through an automotive cigarette lighter system can cause the dc voltage to
go below 10.8 Vdc.
Check that power transients are not causing the dc voltage to go below 10.8 Vdc.
The dc voltage provided by an automobile is susceptible to power transients. For
example, power transients may occur when lights or fans turn on or off, when power
door locks engage or disengage, and when windshield wipers operate. If the dc supply
voltage falls below 10.8 V, the analyzer automatically turns off. However, the
analyzer is not affected by power transients that occur within the range of 10.8 to 30.8
Vdc.
Check that the cable connections are not loose.
Obtain Agilent service, if necessary. See ‘’Need Assistance?’’ at the end of this guide.
Preparing the Analyzer for Use Agilent 35670A
If the analyzer operates intermittently on dc power
2-20