Auto / Manual Range
In auto range the meter will select the best range for the measured
value, and
"AT"
indicate in the lower left of the display. Press
"Range"
to cycle through available ranges for each function.
"AT"
will not be on
the display when locked in a specific range.
When using the record mode it is recommended that you select the
range first. The record function will lock the meter into the range first
measured, and could indicate over-range (
OFL
) for maximum or
minimum values outside this range. Manual range will also provide a
faster response to inputs.
Data Hold
Press data hold “
D/H
” button to activate. This will freeze the
reading and range in the display for your review.
Record and Time Stamp
The meter will record minimum, maximum and elapsed time for all
functions except capacitance. To activate and review recorded events
see figure 1.
Figure 1
Capacitance
NOTE:
Some large capacitors take approximately 10 seconds to settle
on a value.
WARNING!
Capacitors should be completely discharged prior to testing.
Measure AC or DC Volts
Measuring Resistance and continuity
Measuring Frequency / Duty Cycle
Measuring Temperature
Note:
Press
"Mode"
to select ˚C or ˚F.
Temperature adjustment
The DL259 temperature can be adjusted to a known set point. The
best method is in a stirred mix of crushed ice and water. Insert
thermocouple in meter, select temperature, then measure the ice mix.
Adjustment for setting to 32˚F is inside battery compartment. (See
maintenance section)
Measuring µA
Press
"Mode"
to select DC
AC
DC
Press
"Mode"
Press
"Mode"
Press
"Mode"
to Select C˚
DL259-MAN
P. 3
Continuity
Resistance
(Break circuit to
measure µA)
