Guest daveoh Posted March 23, 2007 Share Posted March 23, 2007 Hi, Does anyone know the typical voltages the sending units supply to the gauges? I want to bench test my new autometer gauges without frying them. Thanks, David O. Quote Link to comment Share on other sites More sharing options...
MrFancypants Posted March 23, 2007 Share Posted March 23, 2007 The senders dont supply a voltage. The gauge measures the resistance of the sender. The gauge operates on 12V. - Greg - Quote Link to comment Share on other sites More sharing options...
Guest daveoh Posted March 23, 2007 Share Posted March 23, 2007 Would they have roughly the same resistance range of the fuel senders, 10-150ohms, or something different? Is it too much trouble to bench test these or should I just wire it up to a buddy's working 240z with some test clips? Thanks, DJO Quote Link to comment Share on other sites More sharing options...
vashonz Posted March 23, 2007 Share Posted March 23, 2007 All my autometer guages came with sending units, I just installed those. Why do you need to bench test them? are you just making sure the guage works? or are you trying to calibrate it? is there a way to check the cal? (I do some guage cal at work) Quote Link to comment Share on other sites More sharing options...
Guest daveoh Posted March 23, 2007 Share Posted March 23, 2007 Well I'll be dipped in synthetic! A quick trip to the garage confirms that my gauges come with sending units as well. Apparently I hadn't bothered to open oil and temp gauge packages. At least I was thinking ahead! I did just want to test them before getting it all put together and dropped in. Thanks! Quote Link to comment Share on other sites More sharing options...
MrFancypants Posted March 23, 2007 Share Posted March 23, 2007 Ah yes, you'll need to wire in the Autometer sender. 99.9% chance the stock sender will not work with the aftermarket gauge. Now I understand what you were asking... - Greg - Quote Link to comment Share on other sites More sharing options...
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