IPS SMART RTU ENGLISH 701-4101-01^ 6-14
Page
9
of
24
flowserve.com
provides a visual light indication if any sensors on
the Smart RTU unit are or have been in alarm
status. To define the alarm limits for each sensor,
refer to Section 5 CUSTOM CONFIGURATION
PROGRAMMING.
The table below describes each of the different
types of indications offered by the RTU-OVAL
accessory.
Table 4: RTU-OVAL visual alert description
LED
State
Description
GREEN
Light
flashes on
for 400
milliseconds
Normal operation
– all sensors are
within acceptable limits
RED
Light
flashes on
for 400
milliseconds
Current alarm
– one of the sensor
measurements has exceeded its alarm
limit and has not returned within the
acceptable range
RED &
GREEN
Each color
light flashes
on for 400
milliseconds
Alarm
– one of the sensor measurements
previously exceeded its alarm limit, but has
now returned within the acceptable range
The time period for which the RTU-OVAL lights will
flash to indicate a past alarm event is set to 14
days by default.
3.6 Individual Sensor Alert Light (RTU-
SAL-X) Optional Accessory
The Individual Sensor Alert Lights (RTU-SAL-X)
are an optional accessory for the Smart RTU.
When installed in a Smart RTU, each light
automatically provides a visual light indication if its
particular sensor is in alarm status. Each sensor
on the Smart RTU requires its own Sensor Alert
Light. To define the alarm limits for each sensor,
refer to Section 5 CUSTOM CONFIGURATION
PROGRAMMING.
3.7 Individual Backlit Sensor
Information Display (RTU-SID-X)
Optional Accessory
The Individual Backlist Sensor Information Displays
(RTU-SID-X) are an optional accessory for the
Smart RTU. When installed in a Smart RTU, each
display shows the actual current applicable sensor
reading in the predefined engineering units.
Each sensor on the Smart RTU requires its own
Sensor Information Display. Refer to the Smart
RTU test sheet to determine the engineering units
configured for each sensor.
4 MAINTENANCE
The only field maintenance required on the Smart
RTU is checking the battery and charging system.
The Smart RTU can also be turned off when not in
use for extended periods of time to conserve
battery life.
4.1 Tools required
Set of SAE wrenches
Phillips head screwdriver
Small flat-head screwdriver
Voltmeter
4.2 Turning unit on/off
To power off Smart RTU disconnect the fuse for the
battery cables and the wires coming from the
power supply or solar panel (refer to included
wiring diagram to identify the correct fuse blocks).
This will stop sensor readings and data
transmission.
To power up the Smart RTU again, simply
reconnect the battery and power supply or solar
panel fuses inside the enclosure (refer to included
wiring diagram to identify the correct fuse blocks).
This will activate sensor readings and data
transmission at the pre-configured intervals.
Figure 2: Fuses on inside of Smart RTU
enclosure
4.3 Battery Replacement
EXPLOSION HAZARD:
Do not open
enclosure when an explosive atmosphere may be
present.
The unit must be powered OFF during the
battery installation.
WARNING STATIC HAZARD:
Wipe only with
a damp cloth due to electrostatic discharge hazard.
The substitution of components may
impair intrinsic safety.
