Standard specifications

Measuring Range

• The velocity range is 0.3m/s to 15m/s. The minimum measurable speed can be one percent(1%) of the full range.

Analog Output

• Current output: Fully-isolated 0~10mA/4~20mA
• Load resistance: O to 1.5k; 4~20mA, 0~750 at 4~20mA
• Base error: Add minus 10uA on top of the measurement error

Frequency Output

Frequency output is proportional to the flow percentage of the full range. It Provides fully isolated transistor open collector frequency output ranged from 1 to 5000Hz, the external DC power supply should not exceed 35V and maximum collector current is 250mA.

Pulse output

The converter can output up to 5000cp/s pulse series, which is dedicated to external totalization. Pulse factor is defined as pulse width is selectable from 16ms, 33ms, 66mm, and so on. Photo-coupler isolated transistor open collector circuit is used for pulse output. The external DC power supply should not exceed 35V and maximum collector current is 250mA

Showing Flow Direction & Range

The converter is capable of measuring both forward and reverse flow and recognizing its direction. The converter output 0Vlow level for forward flow, while 12V high level for reverse flow. Alarm Output Two channel of photo-coupler isolated open collector circuit are used for alarm signal output. There are two alarm outputs: High limit alarm and low limit alarm. The external DC power supply should not exceed 35V and maximum collector current is 25OmA

Communication

RS232C, RS485, HART, PROFIBUS, MODBUS The RS232C, RS485, HART, PROFIBUS, MODBUS Communication interface are embedded in the converter. Surge absorber is optional to protect the interface and converter.

Display Function

Flow rate can be displayed either in engineering units or in percent of span. Totalized volum in any engineering unit can be displayed by setting a totalizing factor.

Input Contact

External contact ON or OFF signal can be used to remotely control the start/stop or reset of internal counter.

Damping Constant

Damping time optional from 0.2 to 100s.

Self Diagnostics Function

• Converter failure, flow tube failure, erroneous setting, etc. Can be diagnosed and displayed.
• Data Security During power Failure:
• Data storage by EEPROM-no back-up battery required.

Case Material

Aluminum alloy

Sensor Material

• Housing: Stainless steel(SUS304), Carbon steel(SPCC)
• Flange: Stainless steel(SUS304) Carbon steel(SS304)
• Pipe: Stainless steel(SUS304)

Wetted Part Material

• Lining: Rubber, PTFE, PFA
• Electrode: Stainless steel(SUS316), Hastelloy B,HastelloyC, Titanium, Tantalum, Platinum
• Normal Operating Conditions:
• Ambient temperature: -20 to 60
• Ambient Humidity: 5 to 95%RH
• Power Supply Voltage: 85 to 265VAC
• Power Supply Frequency: 47 to 63Hz
• Fluid Conductivity: 20Us/cm at least