How to connect: M12 ×1-4 pin connector

You can use this with an input power supply of from 12 to 24 V DC.

Amplifier protection structure conforms to IP67 equivalent.

You can set a lower limit of flow rate. If flow rate falls below the limit, you are warned by a red LED lamp and an output signal.

In case of low pressure spec, you can check flow of fluid by observing rotor rotation from a metal/plastic cap.

In case of high pressure spec, you can measure flow rate at 25MPa.

(Except DFS-1)If you use DFS-2, 3, 6, or 8, You must use an all-metal cap for high pressure. Factory setting: all-metal cap for high pressure.

You can select a position (horizontal, vertical, or tilted) to install.

Rotor can be cleaned by air blow, after taking off a metal cap from a main body.

▷Production of DFS-1-O, DFS-8-O, and DFS-8-W will be discontinued as soon as the materials currently in stock are used up.

※1：You can't visually observe flow, when you use an all-metal cap.
※2：Guaranteed value at 32 cSt about O spec accuracy
※3：Ajustment depends on fluid which you use. Specify it when ordering.
※4：Indicated a value at 32 cSt, when max. flow rate.

※5：You can select non-display mode.
※6：You can set a lower limit of flow rate optionally. Regarding how to set, refer to an instruction manual.

The detection part of a digital flow sensor utilizes rotation of a rotor(turbine) installed in the passage.
The measuring part detects, by means of the external magnetic sensor, the rotational speed of the permanent magnet mounted on the circumference of the rotor.
You can select NPN output or PNP output optionally.

The test at our factory is performed in the condition as follows.
Confirm specifications of each digital flow sensor about accuracy.

• Do not use this sensor in the place to be sprayed with coolant liquid directly to an amplifier.

• An amplifier case is made of ABS. Do not use the ingredients of coolant influencing ABS.

• Be sure to use within the maximum flow rate.

• Do not install this near a machine generating magnetic field like a motor to avoid malfunction.

• Upstream side: 10 times of pipe inner diameter, downstream side: 4 times for straight pipe

  Don't install a curve, confluence, or junction (like an elbow, tee, or throttle valve) near an outlet side.

• The rotor incorporates a magnet. For petroleum oil and lubricant oil, install a filter of 5 to 20 microns; for water and coolant, a filter of 20 to 50 microns.

  ※ Contact our sales staff, for use of a NC lathe for general purpose or grinding machine with coolant containing much cut dust.

  ※ If cut dust sticking to the rotor prevents it from rotating, remove the front cap of the main body and perform air blow to eliminate the cut dust.

• Regarding "O" spec, influence of fluid viscosity may cause "change of measuring value" 

  and "consumption in short time of components". Use fluid at 32cSt ± 50%.