Ultrasonic flow transducer 2WR7 "Landis+Gyr"

Ultrasonic flow transducer 2WR7

The device consists of an ultrasonic flow Converter and the electronic module that can be installed directly on the inverter or separately. Cable length between transducer and an electronic module - 3 m Separate installation is required when the temperature of over 90°C.
Electronic module flowmeter has no display.
Interfaces: the transmitter pulse and the optical probe.
Main application: primary Converter of the water flow to the heat.

MAIN TECHNICAL DATA
Accuracy class (according to DSTU 3339-97): 2
Protection class: IP54 (IP65 optional)
Orifice flowmeter DN, mm: 15-100
Medium: cold and hot water (not applicable for glycol mixtures)
The range of nominal expenditure Qn m3/h: 0,6 60...
The minimum flow rate, Qmin: 0,01 Qn
The maximum flow rate, Qmax: 2Qn
The maximum temperature of the medium, °C: 150
Power: lithium battery 3.6 V with a lifetime of 5 years (standard), 9 years (optional)
The output of the accumulated information: via the optical interface and by means of the transmitter pulse
The length of the pulse output cable: 2 m
The pulse duration of the pulse output: 10 MS

THE MAIN ADVANTAGES OF

* High accuracy and stability of flow measurement for a long time.
* Wide measurement range of the flow rate 1 - 200% of Qn).
* The working part of the flow meter is made entirely of metal and contains no wear of the rotating parts.
* Self-powered by a lithium battery 3,6 V
* Ability to install a flow meter in the horizontal, vertical and inclined pipelines.
* The design of the flow meter does not require installation of direct (soothing) plots.
* Archiving monthly values of the instantaneous volume of downtime and maximum flow rate for 36 months.

CALIBRATION INTERVAL set by the state standard of Ukraine - 4 years.