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Automotive Multimeter
HiRes Mode
31
For zero adjustments, set the Meter to the desired
function, short the test leads together, press F; then
connect the leads to the circuit under test. Adjust the
circuit's variable component until the display reads zero.
Only the center segment on the zoom bar graph is lit.
For peak adjustments, set the Meter to the desired
function, connect the leads to the circuit under test; then
press F. The display reads zero. As you adjust for a
positive or negative peak, the bar graph length increases
to the right or left of zero. If an overange symbol lights
(< or >), press
F twice to set a new reference; then
continue with the adjustment.
HiRes Mode
Pressing H for one second causes the Meter to enter the
high-resolution (HiRes), 4-1/2 digit mode. Readings are
displayed at 10 times the normal resolution with a
maximum display of 19,999 counts. The HiRes mode
works in all modes except capacitance, frequency counter
functions, temperature, and the 250 µs (peak) MIN MAX
modes.
To return to the 3-1/2 digit mode, press H again for one
second.
MIN MAX Recording Mode
The MIN MAX mode records minimum and maximum
input values. When the inputs go below the recorded
minimum value or above the recorded maximum value,
the Meter beeps and records the new value. This mode
can be used to capture intermittent readings, record
maximum readings while you are away or record readings
while you are operating the equipment under test and
cannot watch the Meter. MIN MAX mode can also
calculate an average of all readings taken since the MIN
MAX mode was activated. To use MIN MAX mode, refer
to the functions in Table 8.
Response time is the length of time an input must stay at
a new value to be recorded. A shorter response time
captures shorter events, but with decreased accuracy.
Changing the response time erases all recorded
readings. Model 88 V has 100 millisecond, and 250 µs
(peak) response times. The 250 µs response time is
indicated by "p" on the display.
The 100 millisecond response time is best for recording
power supply surges, inrush currents, and finding
intermittent failures.
The true average value (AVG) displayed in the 100 ms
mode is the mathematical integral of all readings taken
since the start of recording (overloads are discarded).
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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