ELECTROMAGNETIC FLOWMETER APLISENS PEM-500

Application and construction

Electromagnetic flowmeter type PEM-500 is applicable to the measurement of flow of the liquids with minimum conductivity of 5ěS/cm. Device measures flow and volume of liquids in both directions of flow. For correct measurement pipe of sensor has to be fully filled by liquid. Sensor doesn’t have any mechanical parts inside flow tube which

ensure undisturbed flow of medium. Flowmeter is able to measure flow of medium like pure liquids but also pastes and chemically aggressive liquids. It’s applicable is in water treatment facilities for flow measure of water and wastewater, chemical industry, food industry or heat plants. Compact construction with ingress protection rating IP68

(special version) allows to bury device underground.

Sensors and control unit of electromagnetic flowmeter PEM-500 can’t be disconnected by user. The casing of the control unit is made of aluminium alloy cast. User has no access to the electronic boards. Electrical connection of flowmeter is provided by the factory assembled cables. Wires in cables are marked by colours or numbers (detailed description available in table). Number of cable depends on version of power supply. Version with power supply 90…260 VAC is equipped with two separate cables – signal cable and power supply cable. Version with power supply 10…36 VDC is equipped with one signal-supply cable. In standard flowmeter is equipped with 3m long cables. Other cable length are available on request. As an option PEM-500 flowmeter can be delivered with junction box PPPEM with ingress protection class IP67 with factory connected flowmeter’s cable which allows users connecting cables to terminals. Flowsensor tube have flanges (which allows to mount sensor in pipeline), inner electrodes and isolating pipe lining (both matched to measured medium). Electrodes in standard are made of stainless steel but as option user can choose other materials

appropriate for chemical characteristic of measured medium.

Low flow rejection Adjustable, any value

Actual flow Both directions (l/s, m3/h, m3/s, other)

Totalizers 3 totalizer: total, positive, negative (m3, l, other)

Low flow alarm Adjustable, any value

Configuration RS485 and Modbus RTU protocol

Empty pipe detection Cyclic, programmable

Analogue outputs 4…20mA/500_, active (passive on request)

Pulse/frequency outputs max. 24V/10mA DC;

0,1...2000 Hz in frequency mode; up to 500Hz in pulse mode

Passive, galvanic insulation, reverse polarity protection

2-state output OC

Open collector. Max. 35V DC /100mA for each output.

Galvanic insulation, reverse polarity protection

Communication output

Modbus RTU/RS 485

Galvanic insulation

2-state input

5...35V DC/2 mA

Passive, galvanic insulation, reverse polarity protection

Power supply 90...260V AC/ 50Hz/15VA

10...36V DC / 15W (reverse polarity protection)

Ingress protection class

Special version

IP67

IP68

Nominal diameters DN 10...300

ANSI 0.5”...12”

Max. static pressure

Special version

1,6 MPa

2,5 MPa, 4 MPa

Process connection

Flanges according to DIN or ANSI

Ambient temperature -20...60°C

Liner temperature range

Hard rubber -5...90°C

Teflon -25...90°C

PFA -10...90°C

Electrodes material

Special version

316L

Hastelloy, Tantalum

Material of lining

Hard rubber DN40...300

Teflon DN15...300

PFA DN10

Material of casing and flanges (sensor) Carbon steel in protection paint

Accessory Grounding rings (stainless steel)

Excitation of coils isolation class E

Measuring principle Electromagnetic

Weight 0,5 kg (control unit) + weight of the sensor