What does alarm code 7 mean on Siemens Measuring Instruments?
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Tina McmillanAug 27, 2025
If the display shows active flow on your Siemens Measuring Instruments with Alarm code 7, it could be because the measured transit-time (sound velocity) is outside the allowed range for the entered sensor spacing. If your application involves multiple fluid compositions that may experience a significant variation in sound velocity, ensure that the sensor setup wizard is performed using the nominal fluid sound velocity. Also, optimal performance is achieved when the sensors are spaced correctly based on the actual fluid sound velocity, so perform the sensor setup wizard again using the initially measured sound velocity as the expected sound velocity if possible.
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kingjessicaAug 27, 2025
What does alarm code 28 mean on Siemens Measuring Instruments?
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wbarrettAug 27, 2025
If the display shows active flow on your Siemens Measuring Instruments with Alarm code 28, it could be due to a duplicate assignment of pressure, density, viscosity, or temperature. Check the "inputs and outputs" channels assignment, reassign inputs, or disable unused inputs. It may also be caused by the RTD input conversion indicating an out-of-range temperature. Check the RTD connections, ensure that the selected RTD type matches the resistance of the installed RTD, and verify that the user RTD calibration parameters are set correctly in the RTD setup menu.
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Jonathan SmithAug 27, 2025
What does alarm code 36 on Siemens Measuring Instruments mean?
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Alison BoyerAug 27, 2025
If your Siemens Measuring Instruments display shows no flow and the measured sound velocity is 0 m/s, accompanied by alarm code 36, it indicates that the pipe dimensions are too small for the selected sensor size or frequency. Verify the pipe dimensions, fluid selection, and sensor selection. The application may not be suitable for the purchased sensor size.
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Patricia JohnsonSep 3, 2025
How to fix a dark LCD display on Siemens Sitrans F Measuring Instruments?
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Christina CastanedaSep 3, 2025
If the LCD display on your Siemens Measuring Instruments is dark or partly dark, turn off the power. Check the connections for the power supply PCBA and the flat cable for the display module. If the display is partly dark, start the display test (menu 2.3.2.).
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Adam JeffersonSep 5, 2025
What causes 'Supply voltage above limit' in Siemens Sitrans F?
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Allen TorresSep 5, 2025
If the supply voltage is too high, make sure the input voltage is within the product specification.
The '- - -F- - - Fault Alarm' on your Siemens Measuring Instruments indicates a loss of signal strength (ALC) or a change in Rx signal location (Beam Blowing). Try re-coupling the sensors with fresh couplant or installing the sensors in Direct mount mode.
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Christopher ThompsonSep 22, 2025
What does 'Clr Active Memory?' mean on Siemens Sitrans F?
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Mrs. Stacy MartinSep 22, 2025
The Siemens Measuring Instruments displays 'Clr Active Memory?' because you pressed and held the key during power-up. This function is used to restore operation if a severe event, like a violent power surge, disrupts the system operation.
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Samuel AllenSep 17, 2025
What causes Reverse Flow Limit on Siemens Measuring Instruments?
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Gilbert GoldenSep 17, 2025
If Siemens Measuring Instruments displays 'Reverse Flow Limit', it indicates a water network failure where the non-return valve is broken. The alarm remains active until the reverse flow rate drops below the reverse flow alarm limit.
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rbaileyAug 25, 2025
What to do if Siemens Sitrans F Measuring Instruments display 'Chan Not Setup'?
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Anthony CobbAug 26, 2025
If Siemens Measuring Instruments display 'Chan Not Setup', enable the channel in [Channel Setup - Channel Enable - Yes]. Remember, a channel cannot be enabled until its sensors are operating.
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zsteeleAug 25, 2025
What to do if Siemens Sitrans F Measuring Instruments show 'Memory Full!'?
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Barbara TaylorAug 25, 2025
If your Siemens Measuring Instruments display 'Memory Full!', delete an obsolete site or clear the Datalogger memory. This will create space for new data.
Siemens Sitrans F Series Specifications
General
Measurement Principle
Coriolis, Electromagnetic, Ultrasonic
Communication Protocols
HART, PROFIBUS, Foundation Fieldbus, Modbus
Pressure Range
Varies by model (e.g., up to 400 bar for some models)