Proximity Switch Testing

Testers for proximity and photoelectric switches verify the signal output type of dc switches a red light indicates npn and a green light indicates pnp.

Proximity switch testing.

The test voltage is typically 100 volts. This test can be done in ac and or dc voltage. Make sure to put the machine in e stop when testing the switches or solenoids manually to check there diagnostics. A proximity switch is one detecting the proximity closeness of some object.

Pocket sized sensor tester with push type terminals makes wire connections quick and easy. A proximity switch will be in its normal status when it is distant from any detectable object. Dc 2 3 or 4 wire type sensors. By definition these switches are non contact sensors using magnetic electric or optical means to sense the proximity of objects.

The proximity switch generates a small radio frequency field. Testing switches proximity solenoids contactors or relays. For technical drawings and 3 d models click on a part number. The proximity switch usually has 3 specific wires going to the switch.

Confirms operation of inductive photoelectric capacitive and ultrasonic sensors. Insulation resistance this test measures the dc resistance across the open contacts measured in ohms with an ohm meter and the switch in a de energized state. If not you could have uncontrolled motion from other sources due to conditions in the ladder logic.