Fluke II Series Operator's Manual page 22

Front Panel Keys (cont.)
0 - 9
(Numeric Keypad)
Used to enter the digits of the output amplitude
and frequency, as well as other data such as the
time and date. The proper sequence for entering a
value is to enter the digits, then any necessary
multipliers, an output function key, then E.
For example, to obtain an output of 20 mV, you
would press the following sequence of keys:
2 0 m V E. The . key is
available for decimal places.
+
If the output function is dc voltage, current, ac
voltage entered in dBm, or a wideband output
entered in dBm, pressing + E toggles the
polarity of the output. If the output function is ac
voltage or current, pressing + E changes
the output to dc.
20