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Basic parameters
Product model YF-G21 Product name
Rated voltage: DC = 5V, maximum working current: 15mA (DC5V)
Production quantity PCS inspection standard
Inspection Item Standard Requirements
1 Appearance The product identification is clear and accurate.
2 Allowable water pressure <1.75MPa
3 Working voltage range DC5 ～ 15V
4 Insulation resistance> 100MΩ
5 Accuracy ﹝ 2 ～ 30L \ MIN ﹞ ± 3%
6 Flow pulse characteristics f = (8.1 * Q) Q = L / Min
7 Output pulse duty cycle 50% ± 10%
8 Output pulse high level> DC 4.7V (input voltage DC 5V)
9 output pulse low level
For third part service:
Water flow sensor: check if there is enough flow, if the water pump is powerful enough, weak or polluted flow may damage the flow sensor
Product model YF-G21 Product name
Rated voltage: DC = 5V, maximum working current: 15mA (DC5V)
Production quantity PCS inspection standard
Inspection Item Standard Requirements
1 Appearance The product identification is clear and accurate.
2 Allowable water pressure <1.75MPa
3 Working voltage range DC5 ～ 15V
4 Insulation resistance> 100MΩ
5 Accuracy ﹝ 2 ～ 30L \ MIN ﹞ ± 3%
6 Flow pulse characteristics f = (8.1 * Q) Q = L / Min
7 Output pulse duty cycle 50% ± 10%
8 Output pulse high level> DC 4.7V (input voltage DC 5V)
9 output pulse low level
For third part service:
Water flow sensor: check if there is enough flow, if the water pump is powerful enough, weak or polluted flow may damage the flow sensor
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