MJ-HZ21WI (44MM)

MJ-HZ21WI (44MM)
Product Name

MJ-HZ21WI (44MM)

  • Model: MJ-HZ21WI 44MM
  • Shipping Weight: 0.08kg
  • Units in Stock: 89993

Price:   $6.00

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Electrical characteristic

 

Item

Examination requirement

 Appearance

Clean and beautiful, smooth without burr, without off color

Water pressure resistance performance

1.75 MPa 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

1-30L/Min

Operating voltage range

DC4.5-18V

Max operating current

15mA

The output pulse high level

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

The output pulse low level

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

The output pulse duty ratio

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

Flow pulse characteristics

F=[11Q-3]±10%, F for instantaneous pulse value (HZ), Q for transient flow (L/min)

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

 

 

 

Remark

  1. Don’t disassemble when the product is found to have quality problems .
  2. For dry air sensor within the residual water should pay attention to the blowing pressure <0.3MPa and intermittent output impeller.Can not be rotated at high speed in the anhydrous state .

 

 

Connection mode:

  1. RED line for power+
  2. BLACK line for power-

YELLOW line for signal output

 

 

Installation instructions

1、When magnetic materials or to flow switch a magnetic force materials near water flow switch, its characteristics may change.

2、In order to avoid particles, sundry into the flow switch, in the inlet must install screen pack.

3、In the use of the water flow switch before please read the parameters that if there are still questions please to our factory technical personnel consultation.

4、In the process of installation and use must cooperate relays (power in 3 W below), lest because of switch power small and dry reed pipe burn out.

5、The water flow switch installation use environment to avoid strong vibration and shaking place, in order to avoid water flow switch produce false action.

 

 

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