POWER OUTPUT EVALUATION
Gentherm Global Power Technologi
es
Page 37
7.2
CHECKING V
set
OR SETUP POWER
V
set
, i.e. setup power, can readily be checked by using a voltmeter or multi-meter to measure
the stable setup voltage of the power unit. Use the following procedure, as appropriate, to
check.
Figure 18 - V
set
and Setup Power Versus Ambient Temperature
7.2.1
Examining V
set
Immediately after Ignition
Immediately after ignition the power unit warms, and the resulting temperature rise produces
power.
Follow these steps to check V
set
after ignition:
1.
Disconnect the customer load from the TEG, terminals 7 (+) and 8 (-) of TB-1 and
allow to stabilize for 15 minutes.
2.
Consult the data plate inside TEG door for the reference V
set
voltage and determine
the required V
set
for the present ambient temperature. See Working-out Required V
set
or Setup Power topic above, or Alternative Method of Working-out Required V
set
or
Setup Power.
3.
Connect a voltmeter between terminals 5 (+) and 6 (-). This is the measured V
set
and
should tend towards the required V
set
. It will climb as shown in Figure 19.
