RKI Instruments Beacon 200 - Manual (Page 39)

Configure Channel Settings Menu • 39
View System Information Menu
The View System Information Menu consists of only one display screen
which indicates the version number of the firmware that is running the
instrument and the system voltage. The system voltage is the voltage that
is directly running the instrument’s circuitry. When the unit is running from
AC power, this voltage is normally 24.0 volts ± 0.2 volts. When the unit is
running from DC power, this voltage reading can be used as an indication
of the DC voltage powering the unit.
ALARM-2 (activation)
(INCREASING) Indicates if the alarm 2 circuit is activated by gas readings INCREASING
or DECREASING to the ALARM-2 Level.
ALARM-2 Relay (action)
(NORMALLY DE-ENERGIZED) If set as NORMALLY DE-ENERGIZED, the channel’s alarm 2 relay is de-
energized in normal operation and energizes when an alarm 2 condition
is initiated.
If set as NORMALLY ENERGIZED, the channel’s alarm 2 relay is
energized in normal operation and de-energizes when an alarm 2
condition is initiated.
ALARM-2 Relay (reset)
(SELF RESETTING for oxygen,
LATCHING for all other channel types) If set as LATCHING, you must press the RESET button to reset the
alarm 2 circuit after the alarm 2 condition passes.
If set as SELF RESETTING, the Beacon 200 automatically resets the
alarm 2 circuit after the alarm 2 condition passes.
NOISE FILTER
(3) The noise filter feature helps “smooth out” jumpy or noisy signals from
the detector head. You can set the noise filter from 1 to 8.
A setting of 8 produces the greatest amount of smoothing but also
responds slowest to changes in the response reading.
A setting of 1 responds fastest to changes in the response reading but
produces the least amount of smoothing.
ZERO SUPPRESSION
(0.0% of the detection range in terms
of the detection units for carbon
dioxide channel types, 0.5% oxygen
for oxygen channels, 2.0% of the
detection range in terms of the
detection units for all other channel
types) The zero suppression feature helps prevent “jumpy” readings near the
fresh air reading.
For example, if the zero suppression setting on a %LEL channel is 2.0%
and the full scale is 100% LEL, the Beacon 200 will display a reading of
0% LEL for gas readings from -2% LEL to 2% LEL.
Table 9: Channel Setting Parameters (Continued)
Parameter
(Factory-Set Value)
Description