SenSmart 3000 User's Manual
Document: UM-1003
Revision Level B
18
Calibration history records are logged and may be viewed in the
Sensor Information
menu (see
section 5-5).
Figure 4-2: Cal-Mode Flow Chart and Menus
4.2
ALARM OPERATION
SenSmart 3000
’s have front panel LED indicators for Alarm 1, Alarm 2 and Alarm 3. An optional
10-0234 Relay/Modbus board adds K1, K2 & K3 relays for these alarms.
CAUTION:
SenSmart 3000 Alarm LED indicators function even without the presence of the 10-
0234 Relay option. With 2-Wire 4-
20mA operation, to conserve power, alarm LED’s only flash
during alarm events. With 3-Wire 4-
20mA operation, alarm LED’s flash when new, and become
steady after an operator ACKNOWLEDGE - pressing the UP/RESET key.
4.2.1 ALARM 3
– UNDERSTANDING FAULT / LEVEL OPERATION
The “A3” alarm is typically dedicated to FAULT conditions indicating sensor failures or “out of
measurement range” conditions. However, some applications require a third level alarm. The A3
menu is identical to A1 & A2 and may be set to trip at an upscale level value. A3 WILL ALSO
TRIP WITH MISSING OR FAILED SENSORS REGARDLESS OF THE LEVEL VALUE!
CAUTION:
Missing or failed sensors always trip Alarm 3 and relay K3 (if equipped). This is true
even with A3 configured as a level alarm and it must be accepted that A3 level alarm events
might be caused by the monitored level, or, by a missing or failed sensor.
SECTION 5
– SETUP MENU CONFIGURATION
5.1
Menus Database Configuration
All SenSmart 3000 configuration variables are stored in its menu database. Many menu items will
contain default values from the factory and require changes to better match a user’s particular
application. SenSmart 3000 menus may be configured from the magnetic keypad in 5-10
minutes per transmitter. For installations consisting of numerous points, an interface device is
offered to allow
Smart
sensors and SenSmart 3000
’s be configured from a PC’s USB port. This
is useful when SenSmart 3000
’s are not yet installed or if a portable computer may be carried to
each unit.
The SenSmart 3000
’s configuration menus are shown in Figure 5-1.