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Performance Characteristics and Technical Index of Pulse Output Turbine Flowmeter
Apr 10, 2017


Pulse output turbine flowmeter performance characteristics and technical indicators:
Features:
1, the measurement range is wide, the lower limit flow rate is less  than 0.5m / s, the pressure loss is small, the impulse shock resistance  is strong.
2, with high resistance to electromagnetic interference and  anti-vibration ability, the use of fully sealed isolation protection  self-lubricating bearings, reliable performance and long service life.
3,  the use of advanced ultra-low power single-chip microcomputer  technology, machine features strong, low power consumption, superior  performance. Intelligent flow display with nonlinear precision compensation. Accuracy is better than ± 0.02%.
4, the instrument coefficient can be set by the button online, and can  be displayed on the LCD screen, LCD screen intuitive clear, high  reliability.
5, the use of EEPROM on the cumulative flow, the instrument factor for power-down protection. Protection time is greater than 10 years.
6, can be measured in a stable state of gas pressure compensation.
Technical indicators:
Nominal caliber: pipe type: DN4 ~ DN200;
Insert: DN100 ~ DN2000;
Accuracy class: pipe type: ± 0.5 level, ± 1.0 level;
Insertion: ± 1.5, ± 2.5;
Ambient temperature: -20 ℃ ~ 50 ℃;
Medium temperature: measuring liquid: -20 ℃ ~ 120 ℃;
Measuring gas: -20 ℃ ~ 80 ℃;
Atmospheric pressure: 86KPa ~ 106KPa;
Nominal pressure: 1.6 Mpa, 2.5Mpa, 6.4Mpa, 25Mpa;
Explosion-proof grade: ExdIIBT4;
Connection: threaded connection, flange clip, flange connection, plug-in, etc.;
Straight pipe section requirements: gas: upstream straight pipe should be ≥ 10DN, downstream straight pipe should be ≥ 5DN;
Liquid: upstream straight pipe should be ≥ 20DN, downstream straight pipe should be ≥ 5DN;
Plug-in: the upstream straight pipe should be ≥ 20DS, downstream  straight pipe should be ≥ 7DS (DS for the pipeline measured diameter);
Display: (1) remote display: pulse output, current output (with display instrument);
(2) Live display: 8-bit LCD display cumulative flow, unit (m3);
4-bit LCD display instantaneous flow, unit (m3 / h), battery power, frequency, flow rate;
(3) temperature and pressure compensation type:
A, display the standard instantaneous flow and standard cumulative flow;
B, showing the current pressure, temperature, battery voltage;
Output function:
1, pulse output, p-p value determined by the power supply;
2,4 ~ 20mA two-wire current output;
3, the unit volume pulse output and the sensor original pulse output;
4, with RS485 communication interface;
Power supply:
1, DC5 ~ 24V;
2, the standard 3V lithium battery installed in the instrument can be used continuously for more than eight years;
3, temperature and pressure compensation type 3V lithium battery  installed inside the instrument can be used continuously for more than  four years;
Transmission distance: the sensor to the display distance of up to 500m.

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