Product specification
Evaluation unit for flow measurement system based on microwaves
Description
The evaluation computer FLOCON 21 forms, together with one of the sensors DR-xxx, a contactless flow measurement system for many applications in the transport of dry solids / bulk materials (sand, powder, dust) in pipes (pneumatic transport or in applications with free-falling material).
The measured variables are speed and mass flow, both can be output at 0 / 4-20mA current outputs.
Depending on the application, the system can also measure the density or the value of the total mass transported.
It is also possible to program the system so that after receiving a start signal it measures the total mass transported and signals that a preset mass value has been reached at the digital output.
The evaluation unit FLOCON 21 is connected to the sensors DR-xxx via a 4-wire RS485 line, whereby the distance between the two units - depending on the quality of the cable used and the interference environment - can be up to 500m. The sensor is also supplied via this line.
This unit takes care of the calculation of the actual delivery rate, integrates these values into a mass and passes them on via the analog output, thus combining a complete control unit with the functions: parameterization, calibration, status display and data output on a PC interface.
DR-xxx
Bulk flow sensor
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Technical data
19 'Euro rack slot:
● Dimensions: 101.4mm (20 HP) x 132.55mm (3U) x 160mm
● Weight: 450 g
● Display: 4 lines x 16 characters alphanumeric LCD display with LED backlight
● Keyboard: 16 membrane keys with audio acknowledgment
● Displays: 5 status LEDs
Casing:
● Degree of protection: IP 65
● Front window: polycarbonate, with slit closure
● Dimensions: DxWxH 249x191x241 mm (including PG sockets)
● Electrical connection height: 90mm (including PG sockets)
● Total weight: approx. 6 kg
Electrical connections:
● Power supply: 110V 50 Hz (90 - 130V 47 - 62Hz or 230V 50 Hz (190 - 250V 47-62Hz), 24 VA
● Fuse: internal mains fuse 5 x20 mm, 1 A, slow blow
● Sensor supply: 22 - 28 Vdc, 0.3A max.
● Sensor data lines: RS485 (GND, A, B), 38400 baud, RGI internal protocol
● Analog output: 0 / 4-20mA, 0-400Ω load range
● PC data access (front): RS232, 9-pin SUB-D, TxD, RxD, GND; 38400 vols, format 8, n, 1
Environmental compatibility:
● Operating temperature range: 0-40 ° C
● Humidity range: 5% to 90%, without condensation
● Operating pressure: 700-1060 mbar
Data storage and data protection:
● Internal battery 2.4V 2.4Ah, consisting of 2 x AA NiMH type
● Holding time: 6 months @ 20 ° C RT
● Charging time: 3 days
