1900/27 Vibration Monitor Operation and Maintenance Manual
10
2.4 Configuration Switch Settings
Use
the
6-position
configuration
switch
on
the
front
panel
of the
monitor
to
program
the
relay
time
delays,
the
alert
relay
alarm condition, English or metric
units
,
and to initiate a monitor self test.
2.4.1 Relay Time Delay
Relay time delay is the amount of time that the vibration must continuously
exceed the setpoint before an alarm occurs. Table 2.4 shows the relay time delay
switch settings.
TABLE 2.4: Relay Time Delay Settings
Switch 1
Switch 2
Time Delay
Off
Off
3 seconds
Off
On
5 seconds
On
Off
10 seconds
On
On
15 seconds
2.4.2 Alert Relay Alarm Conditions
Alert relay alarm settings let you configure the Alert relay to be driven by the
following 4 conditions: the Alert setpoint, the Alert setpoint logically OR'ed with
NOT OK, NOT OK, or the Danger setpoint. If you configure the relay to be driven
from NOT OK or the Danger setpoint, the Alert setpoint is no longer used. Table 2.5
shows the Alert relay drive condition settings.
Table 2.5: Alert Relay Alarm
Condition Settings
Switch 3
Switch 4
Alert Drive
Off
Off
ALERT
Off
On
ALERT OR NOT OK
On
Off
NOT OK
On
On
DANGER
