Test Products International 183 - Manual (Page 30)

29 28
m. Two-Hold System
The two-hold system is a data hold feature that will
automatically store a stable reading under the 1
HOLD sub-display in the lower left hand corner of
the LCD. When a new, stable reading is obtained,
the reading under 1 HOLD will be moved to 2 HOLD
and the new reading will be displayed under 1
HOLD.
Depress the HOLD button to activate the feature.
Push the button again to de-activate the feature.
l. Relative % Mode
The Relative % mode takes the actual reading on
the main display and compares it to a reference
value programmed by the user on the right hand
sub-display. The left hand sub-display will show the
percentage the actual reading varies from the refer-
ence value. Activate the function as follows:
1. To use Relative % mode manually select the
range for the function.
2. Depress the REL% button.
3. Depress the EDIT button. The right hand digit
under the REF sub-display will start to flash.
4. Depress REL% or HOLD buttons until correct
number is selected for that display position.
5. Depress the REC button. The next digit to the
right of 3 above will start to flash.
6. Repeat steps 4 and 5 until correct values for
all four digits under REF sub-display are
entered.
7. After the correct REF value is entered, depress
the EDIT button.
8. Measure the circuit or component being com-
pared to the programmed reference value.
Results will be displayed as a percentage in the
lower left hand sub display.
9. Depress the REL% button or turn the rotary
switch to exit the function.