Hi
Guy's
I brought home a new mag
tube & transmitter, which I tested first against a calibration standard, so
I'm certain of it's accuracy. I ran a full set of tests tonight and was somewhat
surprised at the results.
I
ran the first test with the Ford evap cores in the system, plumbed in
parallel.
- Max flow 9.3 usg/m 35 l/m
- 12.07 volt battery supply voltage
- .49 amps current draw
- 1.8 amps max inrush current
Second test had no evap cores in
the system. Simply recirced water through pump - engine - header tank -
pump.
- max flow 13.0 usg/m 49 l/m
- 12.06 volt battery supply voltage
- .37 amps current draw
- 3 amps max inrush current.
Third test, I plumbed in a set
of GM (Harrison) evap cores in parallel, into the system. I hung them just below
my mounted Ford cores, using they same pipe sizes in an effort to have
comparable test conditions.
- max flow 7.7 usg/m 29 l/m
- 12.4 volts supply voltage (I hooked a trickle
charger to the battery)
- .47 amps max current draw
In each test configuration test
results are with heater valve closed. Heater core added .5 usg/m in each
case.
In all of the above tests the
electronic pump controller was bypassed to give full battery voltage to the
pump. With the pump controller in use, as the water was cold well water,
controller had pump at minimum flow which was measured at .6 usg/m - 2.2
l/m. I suppose I should have dipped the RTD probe into hot water to watch the
flow increase, however all test equipment is packed up and system is back
together.