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PRODUCTS
Format:454FTB, 504FTB, 534FTB, 2444, 2445
Liquid
Gas
Steam
Our Thermal Mass Flowmeters are for gas measurement.
Their measuring principle takes advantage of the fact that calorie amount taken away from the heated sensor by a fluid flow is correlated to the mass flow.
The sensor inserted in the process line samples a representative flowrate across the line to infer the total flowrate.
Full digital control has eliminated the need of a bridge circuit.
Simplified communication with USB interface, HART communication feature, Profibus communication feature, RS-485 (Modbus) communication feature, Error logging feature (keeps a maximum of 200 error events in 16 different alarm types), Min./max. logging feature (records maximum and minimum readings in flowrate, fluid temperature, transmitter temperature), Trend memory feature (stores a maximum of 56 hours of flowrate / temperature trends).
The retractor unit is a device for connecting and disconnecting an insertion type massflow meter without discharging line pressure. This device is used for application for which it is necessary to connect or disconnect a meter while feeding gas such as line whose sensor may be tainted or line that cannot be stopped after it is once operated. It is necessary to carry out selection according to customer's specifications. If you need a retractor unit, please contact our company.
• Wide flow range, high accuracy
• Can display and output the normal flowrate (0°C, 1 atm) directly requiring no compensation of temperature and pressure
• High durability thanks to the absence of moving parts
• Low pressure loss
air
nitrogen
hydrogen
other
Model | Insertion type | In-line type | Flow Straightener Built-in In-line type | Portable type |
---|---|---|---|---|
Nominal size/ Connection size |
65 mm min. | 15 to 100mm (10 types) |
15 to 200mm (24 types) |
80mm and bigger*1 |
Connection system | Screw-mount or flange | Flange | Screw-mount | |
Connection standard | JIS 10K, ASME 150, 300 |
JIS 10K, ASME 150, 300 |
– | |
Current speed/ flow range*2 |
0 to 84 [m/s(normal)] |
0 to 1560 [m3/h(normal)] |
0 to 3640 [m3/h(normal)] |
0.1 to 55 [m/s(normal)] |
Operating temp. range | Standard: –40 to +260°C High temperature: –40 to +500°C*3 |
–40 to +125°C | Standard: –40 to +200°C High temperature: –40 to +500°C |
|
Max. operating pressure | Less than 1MPa | 1MPa | ||
Factory calibrated accuracy | Standard: ±2% of full scale*4 High temperature: ±3% of full scale |
±2% of full scale*4 | ±2% of full scale for flow velocity | |
Power supply | AC-powered or DC-powered | AC-powered | ||
Material | Sensor: Alloy C276 (Hastelloy C276 or equivalent) | |||
Output | Analog, pulse, alarm (Pulse and alarm are optional) | Analog (optional) | ||
Configuration | Basic explosionproof, IP66*5 | Non-explosionproof, non-waterproof |
||
Applicable fluids | Air, nitrogen, oxygen, hydrogen, argon, methane, other | Air, Nitrogen |
*1: For sizes less than 80 mm, consult the factory.
*2: Depends on fluid, temperature, pressure, and bore size.
*3: Only air, nitrogen, and oxygen
*4: ±2% of reading can be corresponded by actual gas flow calibration (only with air or nitrogen)
*5: For requirement of explosionproof, consult the factory.
*You need to fill out the questionnaire to download documents.
Insertion, In-line type and Portable Type