Tokyo Keiki UFL-30, Installation & Operation Manual

Page: 114 / 166

III-5
III-2. General Specifications
III-2-1. Overall
Measurement Fluids Homogeneous and sonically conductive fluids
(water, waste water, industrial water, river water, sea water, pure water, etc.)
Temperature
range
-25°C to +115°C (depend on transducer)
Note:
1) above also applicable to ambient temperature
2) For main unit, -10°C to +60°C
Turbidity 10000 mg/L or less
Pipes Material Materials which allow stable transit of ultrasonic waves such as
steel, SUS, castings, ductile casting, PVC, FRPM, etc.
Note: Applicable diameters may vary with material.)
Diameters
DN25mm to DN6000mm
Lining
None, tar epoxy, mortar, etc.
Measurement Range
Converted to flow velocity: -30 m/s to +30 m/s
Measurement Cycle
60 ms
Measurement
Accuracy
D
≧
300mm, ±1% of reading, however ±0.008m/s for velocities less than 0.8m/s.
D<300mm, ±1% of reading, however ±0.02m/s for velocities less than 2m/s.
Note:
1) For volumetric flow rate.
2) Fully developed and rotationally symmetrical flow profile required.
Repeatability ±0.5%
Range ability 1 : 300
Measurement
Method
Ultrasonic pulse transit time difference method
European
Compliance
(CE marking)
EMC Directive 2014/30/EU
Harmonized Standard / EN61326-1:2013
Separation into group / Group I
Division into classes / Class A
Location intended for use / In industrial locations
Low Voltage Directive 2014/35/EU
Harmonized Standard / EN61010-1:2010
Over voltage category II
Pollution degree II
Altitude up to 3000m
Long-term temporary overvoltage of 1200V
Short-term temporary overvoltage of 250V
RoHS Directive 2011/65/EU
Harmonized Standard / EN 50581:2012