Triplett 9045 Instruction Manual - 7.1.4 Using The Backlite
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Triplett Model 9045
On the
position of the rotary FUNCTION switch, use the
SELECT button to choose the desired measurement mode.
To determine the measurement mode, observe the LCD display annuncia-
tors while the SELECT button is being pressed.
7.1.4 Using the Backlite
The LCD incorporates a blue LED backlite that aids the user when using the
meter in poorly lit areas. The same button that activates the HOLD is used to
activate the Backlite. To turn on the Backlite, the
button is pressed
and held for 2 seconds or longer. Because the Backlite consumes so much
power (it uses more power than all of the other electronics in the meter), it
only stays on briefly (about 8 to 10 seconds) and automatically turns itself
off. To turn the Backlite off manually, before it goes off automatically, press
and hold the button again until the Backlite turns off.
Since the HOLD feature and Backlite feature share the same button, there is
some interaction in their operation. A few presses of the button will reveal
how to use the button effectively.
7.1.5 REL Mode
Press the
(REL)
button to make subsequent readings RELative to the
present reading, or to “zero out” any zero error. The button is usually used
to zero out a residual resistance reading on the 600
Ω
range, or the residual
stray capacitance reading on the 40nF range. This button does not work in
all ranges or modes. For example, it doesn’t work in the Frequency, Diode
Test, or Continuity modes.
7.1.6 MAX / MIN Mode
The 9045 contains a convenient memory that remembers the Maximum and
Minimum values measured by the meter. The feature can be used for a few
minutes or several hours to memorize the Maximum and Minimum values
measured by the meter.
To activate the feature, press the MAX / MIN button when the meter is in the
desired range. The MAX annunciator will appear in the display, and the Auto
Ranging and Auto Power Off features will deactivate. When the MAX annun-
ciator is displayed, the meter is showing the maximum or “peak” value in its
memory. Another press of the MAX / MIN button will turn off the MAX an-
nunciator and turn on the MIN annunciator. Now the minimum or “valley”
value in the meter’s memory is being displayed. Subsequent presses of the
button will toggle the meter’s display between the MAX and MIN display
modes.