VRC2000 Installation and Operations Manual Page 109
Technical or Setup Assistance
Telephone: 800.945.7730 (USA) or 801.975.7200 (worldwide) • Worldwide Web @ http://www.gentner.com
Each metering channel can be calibrated in a linear numeric value
proportional to input or a power-to-linear conversion of input. Each
metering channel may also be programmed to read indirect power — the
multiplication of two consecutive channels, with the resultant appearing in
the third channel as a new calibrated value. Input impedance on each
metering channel is 100kOhms.
Status Channels
The VRC2000 also contains 16 status-channel inputs. Each of these inputs
has two conditions: the status-channel inputs are either high or low. Either
state may be declared an alarm condition, and any status channel can be
programmed to mute any metering or status channel.
Mute Capability. Any status channel can be programmed to override (defeat)
the alarm limits set on any metering or status channel (any automatic
command associated with such a tolerance limit will also be defeated). A
total of 40 mute functions are available.
Command Channels
Sixteen command channels (with two switches each) are standard in the
VRC2000. This configuration provides you with a total of 32 possible
commands. These command channels allow commands to be sent to
transmitter or other equipment over the telephone lines with a standard
DTMF telephone. The command channel outputs on the VRC2000 are
open-collector drivers, and each command channel may be programmed to be
either latching or momentary. Momentary commands can be set up to last
from .125 to 31.875 seconds in increments of of one-eighth (.125) of a
second.
Commands can be activated manually in real time over the telephone, or they
can be set up to activate automatically based on the condition of selected
metering or status channel. Commands can also be triggered by the built-in
real time clock as time-of-day events.
Automatic Commands. Automatic commands may be initiated by any of
three sources: status-channel conditions (activated or deactivated), exceeded
tolerance limits on any metering channel, or by up to 64 preprogrammed
time-of-day functions.
To Next Page
Loading...