Array Solutions AIM4170 Manual page 4

Antenna Analyzer AIM4170 page 4
Plug the DC power supply that's included with the AIM4170 into an appropriate 120V
AC outlet and insert the connector into the jack on the rear panel of the analyzer.
Press the power switch. The Green LED will blink a few times to indicate the version of
software and then remain on continuously. The Red LED is on only when a measurement
is in progress.
To turn off the power, press the power switch again. If the analyzer does not receive a
command from the PC for 10 minutes, it will power down automatically if it is in the
AutoPwrOff mode. The default is to not power down automatically but if you're using
batteries, the AutoPwrOff mode can be turned on with a menu selection under Setup.
The AIM4170 can be operated on battery power for remote operation with a laptop
computer. The current required is about 250ma while a measurement is in progress and
about 50ma when idle.
Batteries are not included with the AIM4170 but you can make a battery pack using any
type of batteries you like. There is room inside the case for a 9V battery and disconnect
diodes are included so the battery and the AC power supply will not interfere with each
other. There is also a space for an optional resistor to use for trickle charging a battery, if
desired. The main power on/off switch controls the battery power too, so the leakage
current is less than one microamp when the AIM4170 is turned off. Refer to Appendix 6
for more details. (These pictures show an AIM4160, but the AIM4170 is electrically the
same.)
Be sure the maximum input voltage at the DC power connector does not
exceed 15 volts. The minimum input voltage required is 6.0 volts.
NOTE: Low cost power supplies that plug in the wall are usually not regulated and their
maximum output when no load is connected may be several volts higher than their rated
output. Check the output voltage with no load to make sure it does not exceed 15
volts.
Some of the pictures in this manual were taken using an AIM430 or an AIM4160. The
operation of these instruments is equivalent to the AIM4170 (within their operating
ranges) and this manual applies to all three instruments.