Nitto - Rotary Flow Meter RS
Outline
This is a rotary-piston flow meter of simple construction, using ceramics as standard
material for the wetted bearing. For the rotor, it adopts a special plastic with excel
lent chemical resistance, abrasion resistance, heat resistance and impact resistance.
In addition, it is a flow meter for liquid service easy to use and highly durable.
Using a large register for the counter unit.
Features
• Sharply improved durability, with adoption of ceramics as standard material for the
wetted bearing.
• Adoption, for the rotor, of a special plastic with excel lent chemical resistance,
abrasion resistance, heat resistance and impact resistance.
• Easy measuring of high-viscosity liquid, with smaller pressure loss compared with
other positive displacement flow meters.
• Less subject to influences of temperature and viscosity, enabling high-accuracy and
stable measurement at all times.
• Large register easy to read.
• Easy expans ion with variety of pulse generators available for loading.
Specifications
Nominal size symbol : 025
Volume symbol : B0
Measured fluid : Chemical solutions, food liquids, petroleum, water, etc.
Nominal size : 25A
Liquid viscosity : 0.5~500 mPa·s (Special 0.2 ~30.000 mPa·s)
Liquid temperature : 0~200°C (special -20~200°C for Material symbol S2)
Liquid pressure : 2.0 Mpa or under (By flange standards)
Measuring accuracy : Within ±0.5% or within ±0.2% (Counter symbol A0 only) Momentary flow rate Within ±2.0%FS
Standard connection
Flange : JIS5K, 10K, 16K, 20K, ANSI class 150, 300 (For the details, see paragraph of "Process connection and face-to-face dimensions")
Indication
Pointer type (A O) :
Pointer Dial Plate
Dial Unit : 0.1 L
Volume per rev. : 10 L
Total counter
Dial Unit : 10 L
Number of digitals : 6 (999,999 x 10L)
Zero resettable register type (Z 8)
Zero-reset counter
Dial Unit : 0.1 L
Number of digitals : 4 (9,999 L)
Continuous total counter
Dial Unit : 1 L
Number of digitals : 7 (9,999,999 L)
Instantaneous flow rate indicator type (I O)
Pointer Dial Plate
Dial unit : 200 L/h
Full scale : 1,000 ~ 5,000 L/h
Total counter
Dial unit : 0.02 L
Number of digitals : 7 (999,999,9 L)
Output
Pulse output
Unit Pulse
Type of signal : (Note) Either one of (1) voltage no-contact signal (high frequency type, photoelectric type). or (2) reed switch contact signal.
Output unit
No-contact pulse output : See "No-contact pulse output" table.
Contact pulse output : See "Contact pulse output" table.
DA conversion pulse : No-contact pulse output possible
Analog output : Direct output impossible (DA converter required outside)
Ambient temperature : −10~60°C
Material : Aluminium die casting
