Triplett 9045 Instruction Manual - Notes:
19
Triplett Model 9045
Notes:
This feature does not work in all measurement modes. For example, it does not
work in the Frequency, Continuity, Diode Test, and Capacitance modes.
When using MAX / MIN, the meter is in a manual ranging mode… i.e. the meter
will not autorange if the signal being measured is above or below the range se-
lected when the MAX / MIN button was pressed.
To return to the normal measurement mode, press and hold the MAX / MIN but-
ton until the meter beeps and the MAX and MIN annunciators turn off.
7.1.7 RANGE Selection
After a measurement mode is chosen by using the rotary FUNCTION switch
and the SELECT button (if necessary), the RANGE may be chosen manually
or automatically. That is, the user has the option to allow the meter to select
its measurement range, or the user may manually select the measurement
range.
To allow the meter to select the range, the user need do nothing . . . its
automatic. The
Auto
annunciator informs the user that the meter will choose
the appropriate measurement range.
To select the range manually, press the RANGE button. The first press of the
button will turn off the
Auto
annunciator, and the meter will be in the range
the meter was on when the Auto annunciator was on. Subsequent presses of
the button will manually select additional ranges. The actual range selected
can be determined by observing the decimal points and range annunciators
on the LCD display.
Notes:
The ranges are arranged in sequence, starting at the lowest range first, and
incrementing to the next higher range with each press of the RANGE button. When
on the highest range, the next RANGE button press will set the meter to the lowest
range, and each subsequent press will increment the meter to the next higher
range.
To exit the manual ranging mode, press and hold the RANGE button until the
meter beeps and the
Auto
annunciator in the display comes on.
Some modes do not allow the ranges to be selected manually. For example, the
Capacitance and Frequency ranges are autoranging only.
7.1.8 Hz / Duty Measurement
Hz (Frequency) and Duty (Duty Cycle) can be measured in two different ways
on the 9045. The method chosen depends on the type of measurement be-
ing made by the user. The Hz / Duty button is used in both methods. See the
following sections for specific information on performing the measurements.