Durag D-FL 220T Ultrasonic Flow Velocity Monitor 1

Durag D-FL 220T Ultrasonic Flow Velocity Monitor 2

Durag D-FL 220T Ultrasonic Flow Velocity Monitor

Rp. 100

Update Terakhir

02 Mei 2023

Negara Asal

Germany

Pembelian Min

1 Unit

Kategori

INSTRUMENT

Subkategori

Durag

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Deskripsi Produk

Durag D-FL 220T Ultrasonic Flow Velocity Monitor Alat Ukur Lainnya

Measuring system for continuous evaluation of flow velocity and flow direction in tunnels. Ultrasonic sensors for tunnel ventilation control system. Reliable measurement across the tunnel profile. Two identical sensors alternately transmit and receive ultrasonic pulses. The system evaluates the transition times dependant on direction and calculates flow speed. D-FL 220T requires extremely low maintenance. Overview

stand-alone system, no control unit required
simple configuration
corrosion resistant against aggressive tunnel atmosphere
sensors can be replaced quickly, no tools, no re-alignment required
signal transmission
– per 4-20mA analog signal and 2 relays
– per RS 485 bus via MODBUS RTU protocol
minimized spare requirements
extremely low maintenance

Technical Data

measuring principle	evaluation of transition times of ultrasonic pulses dependant on direction and subsequent calculation of flow speed
measuring path	1.2 - 25 m
orientation of measuring path	30 - 60°C to tunnel axis, typically 45°
measuring range	-40 to 40 m/s any interval can be assigned to analog output default: 0-20 m/s
response time	> 1s … 180s, programmable
resolution	0,1 m/s, accuracy depends on: installation, path length, flow profile, typ. < +- 0,2m/s bei 3m/s