Sage RIO SIX, Инструкция по эксплуатации

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O p e r a t i o n s a n d I n s t r u c t i o n M a n u a l
41
S A G E M E T E R I N G , I N C .
REV. 10-SIX/SRX
Common Diagnostics
SYMPTOM: Display failure, or pixels extremely dim.
CORRECTIVE ACTION: Contact Factory. Certain types
of failures are under long term warranty. Please note
that the 4-20 ma will still function normally.
SYMPTOM: Display fading, or partially fading.
CORRECTIVE ACTION:
a) Some fading, particularly with those characters that
are lit up most frequently, is normal. The flow
meter will continue to function properly, and flow
meter accuracy and outputs will not be effected.
b) In extreme cases, contact the factory for display
replacement.
c) Note, in late 2009, the Sage Rio was modified
to incorporate a built-in photocell. The purpose
of the photocell is to adjust the display brightness
with ambient lighting. The brighter the surround-
ing lighting conditions, the brighter the display.
Lower ambient lighting conditions, such as a fac-
tory environment, will dim the display. The dis-
play will be dimmest if operated in low ambient
lighting, or at night. The photocell circuit is
designed to extend the life of the display, and to
minimize fading.
d) Note, in early 2010, a further enhancement was
added to further extend the life of the display.
The above mentioned built-in photocell also
senses motion which automatically switches dis-
play from Screen Saver mode to Normal mode.
SYMPTOM: Erratic Readings.
POSSIBLE CAUSES: If a large Motor or Generator or
Variable Fre quen cy Drive (VFD) is nearby the enclo-
sure, it may be inducing sufficient analog noise into
the circuitry to temporarily corrupt the data.
SUGGESTED CORRECTIVE ACTION:
a) If a Power-Restart temporarily solves the problem,
than it is likely that the source of the noise was
the problem.
b) To prevent subsequent problems, if a Remote
Style Meter, move the enclosure as far away as
possible from the source (the Motor or VFD).
c) If an Integral Style Meter, mount the meter in
a different location (further from the source) or
move the source further from the meter.
SYMPTOM: Erratic Readings on a Remote Meter.
POSSIBLE CAUSE: In some cases, analog noise is
induced into the Remote cable causing erratic, or
climbing readings.
SUGGESTED CORRECTIVE ACTION:
a) Be sure the remote cable is installed in metal con-
duit and grounded on one end (in some cases,
grounding
both ends may be required).
b) Also, avoid coiled cable, especially if not in metal
conduit.
c) Also, if extra cable exists, move the extra cable as
far away as possible from any source of analog
noise, such as large motors or VFDs.
SYMPTOM: Meter reading zero continuously, or Full
Scale continuously, or temperature reading is abnor-
mally low (hundreds of degrees below zero).
POSSIBLE CAUSES/SUGGESTED CORRECTIVE ACTION:
a) It is likely that a wire is loose. But in rare cases,
a sensor could fail (i.e., if a standard sensor, HT01
or HT02 sensor exceeds a process temperature of
450˚F.)
b) Check for continuity to be sure the wiring is
making good contact at the terminals of the
Junction Box.
c) Also, to verify that the electronics and the sensor
serial number are the same, note the following:
The sensor’s serial number will come up upon
power up, right after Initializing on the Display. If
the serial number doesn't agree with the Junction
Box labels, that would affect cali bration (in other
words, sensors and electronics are a matched
pair—mixing them up will cause false readings).
Also metal Serial Number Tags are fastened to both
the electronics and the Junction Box. They must
have identical Serial numbers.
d) To check if a sensor has failed on a remote style
meter, it is easy to use the Junction Box to do so.
You must Power Down (shut off power), but you
do not need to remove the probe from the pipe.
Refer to page 24.