3
1
Description
The SurgeX
®
XR315 is a 120V, 15 Amp AC power quality product incorporating SurgeX
®
Advanced Series Mode
®
power conditioning and surge protection. The surge protection is rated
A-1-1, the highest standard of the Federal Commercial Item Description for Endurance. The one
rack-space steel enclosure is designed to be installed in a 19 inch equipment rack, or placed on a
flat surface. A total of eight 120V receptacles are provided on the rear panel.
SurgeX ICE
®
Inrush Current Elimination circuitry is incorporated into the XR315. This
eliminates problems associated with inrush currents from large loads such as amplifiers. With
SurgeX ICE
®
it is not necessary to take inrush currents into account when designing the AC
power for a system, and special time-delay circuit breakers are not required: you only need to
ensure that the steady-state currents of all products plugged into the XR315 are within the 15
Amp rating.
The front panel houses a two-line back-lit LCD display which provides status information in
normal use and allows interaction with menu items during programming. The character display
intensity is adjusted by either a rotary dimmer knob or a push-button On/Off switch. Also on the
front panel are two screwdriver-accessible rotary encoders which are used to step through and
select from a menu of items which determine the operation of the unit. The power button, when
pressed, causes the unit to power up or power down. This button can be disabled if not required.
The LED incorporated into the button indicates the status of the unit. When the LED is off the
unit is fully powered down; when it is on the unit is fully powered up; when it is flashing the unit
is in the process of powering up or down.
A built-in AC voltmeter indicates the line voltage on the LCD display. The internal voltmeter is
a peak reading type which was chosen because most electronic equipment incorporates a power
supply that charges mostly during the AC peaks. Monitoring the peak of the AC provides a more
useful indication of the real voltage available to the electronic equipment plugged into the
XR315.
A built-in AC ammeter indicates the total current consumption of connected equipment on the
LCD display. The internal ammeter is also a peak reading type.
A calculation of the total power being delivered to connected equipment is displayed on the
second line of the LCD display. Power is calculated as the product of the line voltage and total
current draw, and is displayed with the unit Watts “W”. Volt-Amps (“VA”) is the more correct
unit of power, since the voltage and current measurements are based on a peak reading, but
Watts is displayed for simplicity.
The XR315 is microprocessor controlled and designed to be versatile and expandable. Two or
more XR315s can be connected together to provide control and power conditioning for larger
systems. The XR315 can also control other SurgeX products with its auxiliary relay contacts
and/or its 12V dc output. All options are set via the front panel and all connections are made at
the rear panel. All set-up information is stored in non-volatile memory.
