Stationary Vane Anemometer MPP

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MPP

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Origin: Poland

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Contact: +84 904544588

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Catalogue

Anemometer type MPP is a stationary measurement device intended for measurements of air flow in venting systems of underground mining enterprises as well as surface industry.
Vane detector is used as a measuring element in the anemometer. This device is able to detect direction of flow. Device can cooperate with measurement data transmission systems equipped with various electric standards of transmission. It is possible to define operation in the following systems:
• frequency 8 - 10 - 12 kHz,
• voltage 0.4 - 1,2 - 2.0 V,
• current 4 -12 - 20 mA,
• digital RS-485.
Measurement range of the instrument is equal to ±0,20 - 20,00 m/s. There is a possibility to select other, smaller ranges of measured speeds, according to the technical data.

Moreover the anemometer is equipped with two binary, potential-free, galvanically isolated outputs allowing control of external devices. In case when digital output RS 485 is used, the measurement data can be transmitted also to the external display.

Digital output is intended for setting by the user selected parameters of operation of the anemometer also for service purposes. Characteristic feature of the anemometer is a possibility to record measurement data in the memory, after braking of the transmission-supply line.

Real time of carried out measurements and ambient temperature (option) are recorded except measurement data. This operation mode can be used for autonomous measurements of speed in locations without possibility of connection to transmission-supply network.

Supply Power	Intrinsically safe telemetrical line;
	Intrinsically safe power unit DC: 12V±3V, IZAS < 4 mA;
	Intrinsically safe current loop 4-20 mA: UZAS = 24 V
Minimum measured speed	± 0,20 m/s
Measurement ranges for air flow speed	± (0,20 – 5,00) m/s
	± (0,20 – 10,00) m/s
	± (0,20 – 15,00) m/s
	± (0,20 – 20,00) m/s
Measurement error of flow speed	± (0,5 % rdg + 0,05 m/s), rdg = reading = indicated value
Measurements frequency	1 Hz
Serviced signals standards	Frequency 8 – 10 – 12 kHz
	Voltage 0,4 – 1,2 – 2,0 V
	Current 4 – 12 – 20 mA
	Digital RS485
Control outputs	Binary control outputs with optoisolation, potential-free A and B: Ii = 0,1 A, Ui = 60 V, Pi = 0,4 W
Operation time after decay of external supply	(supply autonomy): 1h
Humidity	< 95 % without condensation
Operation temperature	0°C ≤ Ta ≤ + 45°C
Protection level	I M1 Ex ia I, II 1GD Ex ia IIB T6
Ingress protection of the enclosure	IP65
Execution	Acidproof steel 304/304L
External dimensions	135 x 140 x 226 mm (without fastening tab)
External dimensions	157 x 140 x 263 mm (with fastening tab)
Weight	4 kg
Versions of the anemometer	MPP - F - frequency version
	MPP - U - voltage version
	MPP - J - current version
	MPP - U - F - frequency and voltage version
Additional functions	Measurement of external temperature: -50°C to +125°C
	Real-time clock
	Measurements memory: registration of 16384 last measurements of speed and temperature with measurement time. Frequency of registration is equal to 1 second. Recording time 5 h.
	Configuration of modes and methods of operation from the external computer

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