Electromagnetic
Flowmeter LF410/LF620
LF410/LF622
Electromagnetic Flowmeter LF410/LF620 LF410/LF622
General Specificaition
With the "Functional Magnetic Field Distribution" technology, LF410 is strong against unstable flow. From 15mm to 100mm, they are excellent for abrasive fluid because of Ceramic lining.
Combined with a multi-functional converter LF620 (Combined type) or LF622 (Separate type) equipped with its original Noise-suppression Circuit & Advanced Algorithms, The LF410 has a very high tolerance to noise, giving the unit a very stable output even for slurry fluid measurement.
The AF900 Hand-held terminal (HART(*1) Communicator) can be used for remote control. PROFIBUS-PA(*2) or Modbus(*3) interface is available as an option.
- *1 HART protocol (Highway Addressable Remote Transducer) is a communication protocol for industrial sensors recommended by the HCF (HART Communication Foundation).
- *2 PROFIBUS is the communication protocol for factory automation and process automation that the PROFIBUS Organization recommends.
Instead of analog control with a conventional analog signal (4-20mA), it is one kind of the fieldbus which digitizes all signals.
Flowmeters support PROFIBUS-PA. - *3 Modbus is the communication protocol that Modicon Inc. developed.
Physical layer is RS485.
Main Specifications
Main Specifications List
This table can be scrolled horizontally.
| Mounting style | Wafer type |
|---|---|
| Meter size | 15mm, 25mm, 40mm, 50mm, 80mm, 100mm |
| Measuring range in terms of flow velocity | 0-0.3m/s to 0-10m/s (0-0.1m/s to 0-0.3m/s as option) |
| Accuracy | +/-0.2 % of Rate * This pulse output error result is established under standard operating conditions at Toshiba's admitted flow calibration facility. * Individual meter measurement error may vary up to +/-0.5% of Rate at 1.64ft/s (0.5m/s) or more and +/-0.3% of rate +/-0.039 inch/s (1mm/s) at 1.64 ft/s (0.5 m/s) or less. * Current output: plus +/- 8μA (0.05% of span.) * Refer to individual calibration data for each individual meter's measurement error. |
| Lining materials (Meter size: mm) | Ceramic tube: 15 to 100mm |
| Fluid temperature | -10 to +180℃ (Ceramics) *+120℃ above is Separate type |
| Electrode materials | Hastelloy C (Standard) Ti, SUS316L |
| Grounding ring materials | SUS316 (Standard) SUS316L, Ti, Hastelloy C |
| Ambient tempearture | -20 to +60℃ |
| Structure | IP67 |
| Power consumption | 10W (14VA) at AC100V and Excitation current: 0.2A |
| Power supply | AC100V to AC240V, 50/60Hz (Standard) Allowable voltage AC80V to AC264V DC24V (Option) Allowable voltage DC18V to DC36V DC110V (Option) Allowable voltage DC90V to DC130V |
