Alarms and System Status
Alarm A - Critical Failure
The system error level follows the Failed message class defined in NAMUR NE107.
Triggered during flow sensing errors or main unit failures. The main screen LED displays Error, and the LCD backlight flashes red.
Alarm A Error Code Definition: Bits are defined from MSB (Bit 7) to LSB (Bit 0), with each bit representing the following:
7
na
na
na
6
na
na
na
5
na
na
na
4
Flowmeter Not on Pipeline
D04
Flowmeter is not on the pipeline or is not correctly installed on the pipeline
3
IC Failure = 1
D15
Iout (0/4–20 mA) IC Failure = 1. Parameter D14 must be in the "on" or "do not disturb" state
2
IC Overheating = 1
D15
Iout (0/4–20 mA) IC Overheating = 1. Parameter D14 must be in the "on" or "do not disturb" state
1
Abnormal Pipe Diameter Sensing Element
D02
Abnormality in the module used to detect pipe diameter
0
Ultrasonic Sensor Communication Error
D01
Triggered when the system detects abnormal ultrasonic component communication. Typical causes include opening the device, rotating the display cover excessively and straining internal wiring, or external forces affecting ultrasonic communication
Alarm B – Out of Specification
The system error level follows the Out of Specification message class defined in NAMUR NE107.
Used for flow beyond the set range or other conditions requiring attention. Configurable under the D parameter category. The main screen LED display is unchanged; the LCD backlight turns solid red when active.
Alarm B Error Code Definition: Bits are defined from MSB (Bit 7) to LSB (Bit 0), with each bit representing the following:
7
Dosing Target Reached
D16
The dosing target set at C04 is reached
6
Totalized Flow Exceeds Target
D09
The totalized counter reaches the preset target value at D11, and the accumulation condition at D10 is met
5
Value Exceeds Analog Output Upper Limit
D12
Flow value exceeds the 20 mA upper limit set at E08. For example, if E08 is set to 100 L, the actual flow is 150 L
4
Value Below Analog Output Lower Limit
D12
Flow value falls below the 4 mA lower limit set at E07. For example, if E07 is set to 0 L, the actual flow is −10 L
3
Flow Velocity > 6 m/s or < −6 m/s
D13
Triggered when absolute flow velocity exceeds 6 m/s; cleared when absolute flow velocity returns to 6 m/s or below
2
OCT Timing Too Slow
D14
In pulse output mode, OCT timing is set too slow, preventing correct pulse output
1
Instantaneous Flow Above Upper Limit
D05
Triggered when instantaneous flow exceeds the upper limit set at D06; cleared when flow drops below D06 minus the hysteresis value
0
Instantaneous Flow Below Lower Limit
D05
Triggered when instantaneous flow falls below the lower limit set at D07; cleared when flow rises above D07 plus the hysteresis value
Alarm C - Maintenance Required
The system error level follows the Maintenance Required message class defined in NAMUR NE107.
Used to indicate that the flowmeter requires maintenance. The main screen LED display is unchanged; the LCD backlight turns solid red when active.
Alarm C Error Code Definition: Bits are defined from MSB (Bit 7) to LSB (Bit 0), with each bit representing the following:
7
na
na
na
6
na
na
na
5
na
na
na
4
na
na
na
3
Poor Ultrasonic Signal
D03
Signal is 0 bars
2
Poor Signal Due to Installation Issue
D04
Poor signal caused by installation issues. Evenly tighten the flowmeter to achieve optimal signal quality
1
Excessive Line Impedance or No Wiring Connection
D15
Iout (0/4–20 mA) excessive line impedance or no wiring connection = 1; normal = 0. Parameter D14 must be in the "on" or "do not disturb" state
0
Battery Low
D09
Alarm D - Function Check
The system error level follows the Function Check message class defined in NAMUR NE107.
When the main unit is being operated manually and is not on a monitoring screen, this bit becomes 1. On the settings screen, the LCD backlight turns solid orange.
Alarm D Error Code Definition: Bits are defined from MSB (Bit 7) to LSB (Bit 0), with each bit representing the following:
7
na
na
na
6
na
na
na
5
na
na
na
4
na
na
na
3
na
na
na
2
na
na
na
1
na
na
na
0
Main Unit Not on Monitoring Screen
na
Becomes 1 in simulation mode or on Setup screens
System Status
Status codes are defined from MSB (Bit 7) to LSB (Bit 0), with each bit representing the following:
7
na
na
na
6
na
na
na
5
na
na
na
4
na
na
na
3
na
na
na
2
na
na
na
1
na
na
na
0
OCT Status
na
NC – Normally Closed (conducting; Close = 1); NO – Normally Open (not conducting; Open = 0). Pulse output status is not included
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