Triplett 9045 - Manual (Page 20)

20 Triplett Model 9045
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.
7.2 Rotary FUNCTION Selector Switch
7.2.1 DC Voltage Measurement:
WARNING!!!
Do not rotate the FUNCTION switch with an input applied to the meter.
If the input voltage is higher than 1000V DC (CAT II),
or 600V DC (CAT III), do not attempt to measure!
Use Caution when measuring voltages above 50V DC.
7.2.1.1 Connect the black test lead to the COM jack and the red test lead to the
jack.
7.2.1.2 Set the rotary FUNCTION switch to the position.