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lt-v: controlling a pressure control valve presentation of the lt-v data logger (march 2014) # 1

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LT-V: controlling a pressure control valve Presentation of the LT-V Data Logger (March 2014) # 1

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Page 1: LT-V: controlling a pressure control valve Presentation of the LT-V Data Logger (March 2014) # 1

LT-V: controlling a pressure control valve

Presentation of the LT-V Data Logger

(March 2014)

# 1

Page 2: LT-V: controlling a pressure control valve Presentation of the LT-V Data Logger (March 2014) # 1

LT-V: controlling a pressure control valve

LT-V Applications

Valve opening / closingIsolate sub-networks to control

water circulation Precise measurement of nighttime flow More precise leak detection …

Pressure variationReduce leaks

Normal pressure during the day / reduced at night Output objective (> 85%)

Increase network longevity Reduce excess pressure at night

Page 3: LT-V: controlling a pressure control valve Presentation of the LT-V Data Logger (March 2014) # 1

LT-V: controlling a pressure control valve

LT-V = LT + 1 solenoid output

Specific product:

LT + 1 Latch solenoid output expansion card, 3 wires, 12 V

Compatible solenoid: Bermad S-985-3W

(model compatible with many different models of valve).

Path 1

Path 3

Path 2: Shared

LT-V

Page 4: LT-V: controlling a pressure control valve Presentation of the LT-V Data Logger (March 2014) # 1

LT-V: controlling a pressure control valve

The hydraulic cabling determines the behaviour of the valve

Opening / closing Transfer between two pressure levels pre-set by the operator

Opening / closing

Operating modes

Solenoid

Transfer Day pressure / Night pressure

Solenoid

Day pressure

Night Pressure

Closure of the valve

Page 5: LT-V: controlling a pressure control valve Presentation of the LT-V Data Logger (March 2014) # 1

LT-V: controlling a pressure control valve

Timed One time slot per day Each day, the solenoid switches:

from path 1 to path 3 at xx:xx (day) from path 3 to path 1 at xx:xx (night)

Remote control by WEB LS

On flow The solenoid switches when the flow threshold is exceeded

Configuration of a threshold for average flow Requires a meter or flow meter

Remote control by WEB LS

Timed and flow Control according to time slot and flow

Overrides timed control if flow is higher than configured threshold (e.g.: intervention of fire brigade at night)

Remote control by WEB LS

Control modes


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