WDERF 40-300 type prepayment water meters combines by a WDE woltman water meter and a electronic-valve, designed to measure the volume
of cold water at a pressure to 16 bars in the industrial
complex or irrigation department. Installation should be done only in a horizontal position with counter
upwards (H).
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One meter-one card.
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Prepaid function, radio frequency (RF) card prepaid recharge before consume
water.
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Mechanical display and high definition liquid crystal display.
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The data can be saved when the power off.
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Internal clock circuit switches the valve regularly.
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Preventing magnetic interference technology, and resistant to external
magnetic interference.
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Low credit warning by closing the valve and the valve can be opened by swipe
the RF user card.
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The internal electronic valve closes when no balance, and will open after
swiped by re-debited card.
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The lithium batteries work up to six years due to low power consumption of
the meter, and it is convenient to replace.
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Single tariff (single price) and multi tariff (multi price) are available.
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Battery life: >6 years.
