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General| Type | Transmitter |
|---|---|
| Manufacturer | Siemens |
| Model Number | 7ML1201-1EF00 |
| Measurement Principle | Ultrasonic |
| Communication Protocol | HART |
| Output Signal | 4 to 20 mA |
| Process Temperature | -40 to 85 °C |
| Process Pressure | Up to 3 bar (43.5 psi) |
| Enclosure Rating | IP68 |
| Material | PVDF |
| Input | Ultrasonic signal |
Defines who is authorized to operate the equipment according to safety practices.
User responsibility for changes and repairs, and component replacement policy.
Document copyright and reproduction policy.
Describes The Probe as an ultrasonic level monitor for liquid levels in closed vessels.
Mounting area requirements, temperature range, and proximity to electrical interference.
Positioning for clear sound path perpendicular to the liquid surface, avoiding obstructions.
Details available thread types (NPT, BSP, PF2) for installation.
Information on using optional flange adapters for mating to specific flanges.
Instructions for sanitary probe installation and compatibility with cleaning chemicals.
Guides for connecting power supply, mA output, and relay wiring.
Initial power-up sequence and display indications.
Calibrating mA output using material level reference for proportional or inverse spans.
Graphic display elements indicating operational status like Good, Waiting, or LOE/FAULT.
Adjusting calibration values using keys, without material reference.
Setting the zone to ignore false echoes from the sensor face.
Table detailing measurement response, agitator discrimination, filter, and fail-safe timer settings.
Configuring relay functions (LOE/fault, process alarm) and setpoints.
Defining device behavior during fault conditions and loss of echo.
Adjusting the waiting period from fault detection until fail-safe activation.
Choosing between meters (m) and feet (ft) for measurements.
Identifies causes for unreliable echoes and device waiting periods.
States that the product requires no maintenance or cleaning.
Lists patent numbers for instrument housing design and electronics/sensor.
Details power requirements and environmental operating conditions (location, altitude, temp).
Specifies measurement range options and the beam angle at -3 dB.
Information on device memory, programming keys, and display features.
Technical details for mA output (range, accuracy) and relay output (contacts, rating).
Details sensor housing material, and available mounting types (threaded, flanged, sanitary).
Specifies enclosure rating (Type 4X/NEMA 4X/IP65) and device weight.
Lists product certifications like CE, FM, CSA, and 3A (Sanitary model).
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