No time for temperature measurement instrumentation theory 101 today so
I'll just give you the typical values for the coolant (and oil) temperature
channels. Just plug these values in and see what happens.
Scale factor - 2.151
Low end offset - 100
Sensor offset - 390
Low alarm limit - 0 (or whatever you want)
High alarm limit - 210 for 2 & 3 gen, 225 for
Renesis
If still no joy, disconnect the temp sensor and check reading for
change.
If no change, disconnect wire for coolant temp at EM2
connector and check for change
If still no change, EM2 is bad (not likely since similar
channels on unit are working)
Most likely problem is a short to ground on the sensor line.
Hope this helps.
Tracy (suddenly busy again)
On 8/2/07, Christopher
Barber <CBarber@texasattorney.net>
wrote:
Shocking....Chris
is asking another question about the EM2. Hey, me
asking
questions means I am out there trying to make progress......not
that I am
defensive or anything <g>
Anyway, since my
"buttons" issue the Coolant Temperature on the main screen
has been
showing "0". The oil temp is working ok. I
figured that I must
have inadvertently set it to 0 when I was having my
button problem. I
figured now that the buttons are working
properly I could just go and
calibrate it. Figured a good
starting point would be to use the cold oil
temp as a
guide. However, when I try to calibrate it, it will not
change
from zero. I thought that maybe there was not % change
from zero and I
tried changing other calibration modes but nothing I have
currently tried
has changed it from zero. I admit to very
little current understanding of
the calibration feature at this time
(even though I really like that it is
included in the EM2....I
like options even though they can be a pain
sometimes).
Any
direction on how to get this off of zero would be helpful as I
am
hesitant to start the dang thing 'till I can know how hot the
coolant
is....I know I can get some idea from the oil, but still.
David Staten will probable be much better at figuring this out, but
we have
not been able to meet up for actual progress in the last few
days. TIA.
All the best,
Chris
Christopher
Barber
Attorney and Counselor at Law
5110 Bissonnet, No
418
Bellaire, Texas 77401
Serving the Needs of Senior
Texans
281-464-LAWS (5297)
281-754-4168 Fax
www.TexasAttorney.net
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