
ONICON Incorporated 727-447-6140
Page 37
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SYSTEM-40 BTU MEASUREMENT SYSTEM
Message
Description
Solution
Flow RTD Open
This message occurs when the temperature
sensor in the flow body is reading open.
The meter will not calculate energy in this
state.
Verify if both the temperature sensor cables
are properly connected. Otherwise, contact
ONICON technical support for further
assistance.
Flow RTD Short
This message occurs when the temperature
sensor in the flow body is reading as a short
circuit. The meter will not calculate energy
in this state.
Verify if the temperature sensor cables do not
contact each other. Otherwise, contact ONICON
technical support for further assistance.
Remote RTD Open
This message occurs when the remote
temperature sensor is reading open. The
meter will not calculate energy in this state.
Verify if both the temperature sensor cables
are properly connected. Otherwise, contact
ONICON technical support for further
assistance.
Remote RTD Short
This message occurs when the remote
temperature sensor is reading as a short
circuit. The meter will not calculate energy
in this state.
Verify if the temperature sensor cables do not
contact each other. Otherwise, contact ONICON
technical support for further assistance.
Low Flow
This message occurs when the flow reading
is below the minimum flow threshold of
the meter (e.g. 0.03 gpm for ½” meter). The
meter will not calculate energy in this state.
Contact ONICON technical support for further
assistance.
High Flow
This message occurs when the flow reading
is above the maximum flow rate of the
meter (e.g. 15 gpm for ½” meter). The
meter will not calculate energy in this state.
Contact ONICON technical support for further
assistance.
Down Transducer Range
This message occurs when the downstream
transit time being passed through the
transducers is either too low or too high.
Verify if air is trapped in the piping system.
Otherwise, contact ONICON technical support
for further assistance.
Up Transducer Range
This message occurs when the upstream
transit time being passed through the
transducers is either too low or too high.
Verify if air is trapped in the piping system.
Otherwise, contact ONICON technical support
for further assistance.
Low Signal Quality
This message occurs when the transducers
signal is low.
Verify if air is trapped in the piping system.
Otherwise, contact ONICON technical support
for further assistance.
Important Note
Refer to 4.2 COMMISSIONING for more information.
6.1 ALARM (CONTINUED)