Features
Softkey Menu Trees
3
3-7
The L and W keys adjust the magnitude of changes by moving the highlighted digit. The
e key allows you to move from voltage or current to frequency and back. In practice, for
voltage and current outputs, the knob and arrow keys are used to adjust output until the UUT
reads correctly. The error display then displays UUT deviation from the reference.
15
The POWER (Primary Power) switch turns the power on and off. The switch is a latching push-
push type. When the switch is latched, power is applied.
16
T
The TRIG OUT (Trigger Out) key sets the external trigger when in the Scope mode. If the 5500A
is not in the scope mode when the Trigger Out key is pressed, the beeper will sound.
17
D
The DIV (Divide) key immediately changes the output to one tenth the reference value (not
necessarily the present output value) if the value is within performance limits. In the SCOPE
mode, the DIV key changes the output to the next lower range.
18
X
The MULT (Multiply) key immediately changes the output to ten times the reference value (not
necessarily the present output value) if the value is within performance limits. This key sets the
5500A to standby if this change is from below 33 V. In the SCOPE mode, the MULT key changes
the output to the next higher range.
19
U
The MEAS TC (Measure Thermocouple) key enables the TC (Thermocouple) input connection
and causes the 5500A to compute a temperature based on the voltage present at the input.
20
Output Units Keys
The output units keys determine the function of the 5500A. Some keys have a second unit if the
SHIFT key is pressed just before the units key. The output units are as follows:
V Voltage or Decibels relative to 1 mW into 600 ohms.
k Watts or Current
Q Resistance
H Frequency or Seconds (Seconds is applicable to the SCOPE functions only)
F Capacitance
l Temperature in Fahrenheit or Centigrade
When a frequency (Hz) value is entered, the 5500A automatically switches to ac. When a new
signed (+ or -) output value is entered without specifying Hz, the 5500A automatically switches
back to dc (or enter “0” Hz to move back to volts dc).
21
Multiplier Keys
Select output value multipliers. Some keys have a second function if the SHIFT key is pressed
just before the multiplier key. For example, if you enter 33, then SHIFT, then
p
m, then F, then
ENTER, the 5500A output value is 33 pF. The multiplier keys are as follows:
c milli (10
-3
or 0.001) or micro (10
-6
or 0.000001)
j kilo (10
3
or 1,000) or nano (10
-9
or 0.000000001)
d mega (10
6
or 1,000,000) or pico (10
-12
or 0.000000000001)
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