WET18

Product Features

● Non-contact digital potentiometer

● High precision, long life

● Any electrical Angle choice, customized for you

● Cable discharge mode: Side cable discharge



Electrical Properties

Outgoing terminal name Exit connection
V(+)

Power +: 5VDC

G(-)

Power -: 0VDC

O(OUT)Output pin: PWM 250Hz

 Dimensions

General parameter


Mechanical Travel

360° (endless )

Life Expectancy

Theoretical infinite

Operating Temperature

-40℃~+125℃ 

Rotational speed

<30000RPM



RS


Storage temperature

-40℃~+125℃ 

Shell 

Aluminum

Running torque

<5mN·m 

Shaft 

Stainless iron


Electrical parameter


Electrical Travel

356°

Independent Linearity

±0.3%

Resolution 

4096(12 bits)

Operating voltage

5VDC

Output signal

PWM 250Hz

Max operating current

<10mA

Initial terminal output deviation

<10mV

Load resistance 

>5KΩ



 Optional Features

Electrical part




Output range

Standard output 0~100% (customizable)

Output

direction

The standard is clockwise signal output, but it can also be set to counterclockwise signal output

Other output modes

Current such as :4~20mA output, PWM output...

Special shaft

Special shaft length, special shaft diameter, or special machining on the shaft can be done according to customer requirements

18 e type l digital r potentiometer t test method

1. Required tools, instruments and equipment A small flat-blade screwdriver, a thermal melt gun, a Tektronix oscilloscope, a DC regulated power supply, and an electric rotary digital display indexing table.

2. Measurement

1. First fix the potentiometer to be measured on the electric rotary indexing table, and fix it with hot melt glue to prevent errors caused

by tooling gaps when adjusting the angle;

2. Connect the power lines V and G of the potentiometer to the DC regulated power supply, connect the output signal lines O and G to the first probe of the oscilloscope channel, and turn on the power switch of the oscilloscope to preheat in advance;

3. Turn the output adjustment knob of the DC stabilized power supply to the minimum, then turn on the power supply, and adjust the output voltage to 5VDC;

4. Observe the oscilloscope and record the PWM frequency;

5. Rotate the indexing table to make the potentiometer rotate clockwise, and observe whether the signal duty ratio gradually increases;

6. Rotate the indexing table to find the position with a duty cycle of 5%, and the angle display of the indexing table returns to zero;

7. One test point at 10°, record the angle and duty cycle data;

8. Calculate the angle deviation after the test is completed. If the angle deviation is less than 0.7°, the potentiometer is judged to be

qualified.