Item

Examination requirement

Water pressure resistance performance       

0.35MPa pressure has no slack phenomenon, and parts no crack, relaxation, inflation, and deformation anomaly

Working medium

Water, water standard, use for a long time the temperature is not more than 60 ℃

Flow range

0.2-6L/Min

Operating voltage range

DC4.5-18V

Max operating current

10mA

output pulse high level

In 5 V rated voltage, the output of the high level requirements in 4.5 V above

output pulse low level

In 5 V rated voltage, the output of the low level requirements in 0.5 V the following

output pulse duty ratio

In the rated voltage, the output pulse occupies empties compared to 50%±10%

Flow pulse characteristics

F=25*Q ±10%

Insulating property

Dielectric resistance＞100MΩ

Electrical strength

AC500V 50Hz (Don't breakdown or flash winding)

Electrical strength(80℃)

In +80 ℃ temperature placed in 72 hours, in the environmental temperature back after 1 hour the accuracy of measurement requirements within the plus or minus 5%       

Cold resistance(-20℃)

In- 20 ℃ temperature placed in-72 hours, in the environmental temperature back after 1 hour the accuracy of measurement requirements within the plus or minus 5%

Mode of connection

Red: the positive, black: negative, yellow: pulse signal