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Koyo proximity sensors. CS Series.

Capacitance Type

  • Metal cylinder/Resin cylinder/Square type
  • Non-metal objects such as wood, paper, plastic and water can be detected.
  • The operating distance is adjustable with a potentiometer.
  • DC voltage / NPN output

DC Voltage Output Type/3-wire DC System

Output Form Operating Distance (mm) Output Form Model Number Remarks
Resin Cylinder M22 Non-flush Mount Type NPN NO CS-31-5N*
5
Metal Cylinder M30 Non-flush Mount Type DC voltage CS-85-15T
15
NPN NO CS-85-15N
Square type Non-flush Mount Type DC voltage CS-16-5T
5
NPN NO CS-16-5N
10 NPN NO CS10-34CU-E

DC Voltage Output Type/3-wire DC System       Non-flush Mount Type

Effective Operating Distance 5 mm ±10% 15 mm ±10%
Photo
Remarks Resin Cylinder Type Metal Cylinder Type
Output Form DC
Voltage
Model Number CS-85-15T
Price Open
NPN NO Model Number CS-31-5N* CS-85-15N
Price Open Open
Rated Working Voltage DC Voltage Output Type 12 V DC (10 to 16 V DC) Allowable ripple rate: 10% p-p or less
DC Switching type
(N Type)
24 V DC (20 to 30 V DC)
Full wave rectification power supply can be used. (20 to 30 V DC mean value)
12/24 V DC (10 to 30 V DC)
Full wave rectification power supply can be used. (10 to 30 V DC mean value)
No-load Current T type: 27 mA or lower    N type: 20 mA or lower
Standard Target Object (mm) Iron    50 x 50 x 1 t (Grounding state)
Reaction Material Iron/Non ferrous metal/Non-metal (Operating distance changes depending on materials.)
Effective Operating Distance The operating distance can be changed from a multi-rotation volume.
Hysteresis Approx. 20%
Operating Cycle Frequency 50 Hz
Output T Type Output impedance: 1.8 kK (Output standard: 8P6N)
N Type
Rated Working Current
100 mA (Load voltage: Not more than 50 V)
Voltage Drop (N Type) 2.0 V or lower
Off-state Current (N Type) 200 µA or less
Indicator Lamp Operation indication
Use Ambient Temperature -25 to +70˚C
Temperature Characteristics Within ±20% (At the operating distance at +20˚C)
Withstand Voltage 500 V AC    50/60 Hz (1 minute)
Insulation Resistance 5 MK or higher (500 V DC)
Vibration Resistance Double amplitude: 1.5 mm, 10 to 55 Hz (2 h each for X, Y and Z direction)
Impact Resistance 600 m/s2, within 11 ms (10 times each for X, Y and Z direction)
Protection Level IP65
Case Material Polycarbonate Brass nickel plate
(Detector surface: Polycarbonate)
Lead Wire Oilproof vinyl chloride cable 1.5 m
Outside diameter (Approx. φ4.5) 0.3 mm2, 3 core
Oilproof vinyl chloride cable 2 m
Outside diameter (Approx. φ6) 0.5 mm2, 3 core
Tightening Torque 3 Nm or less 20 Nm or less
Weight (g) Approx. 80 Approx. 250

DC Voltage Output Type/3-wire DC System       Non-flush Mount Type

Effective Operating Distance 10 mm ±10% 5 mm ±10%
Photo
Remarks Square type Square type
Output Form DC
Voltage
Model Number CS-16-5T
Price Open
NPN NO Model Number CS10-34CU-E CS-16-5N
Price Open Open
Rated Working Voltage 12/24 V DC (10 to 30 V DC)
Allowable ripple rate: 3% p-p or less
T type: 12 V DC (10 to 16 V DC)
Allowable ripple rate: 10% p-p or less
N type: 12/24 V DC (10 to 30 V DC)
Full wave rectification power supply can be used. (10 to 30 V DC mean value)
No-load Current 20 mA or lower T type: 27 mA or lower    N type: 20 mA or lower
Standard Target Object (mm) Iron    50 x 50 x 1 t (Grounding state)
Reaction Material Iron/Non ferrous metal/Non-metal (Operating distance changes depending on materials.)
Effective Operating Distance 10 mm ±10% The operating distance can be changed from a multi-rotation volume.
Hysteresis Approx. 20% or less Approx. 20%
Operating Cycle Frequency Up to 10 Hz 50 Hz
Output T Type Output impedance: 1.8 kK (Output standard: 8P6N)
N/E Type Rated Working Current E type: Up to 100 mA N type: 100 mA (Load voltage: Not more than 50 V)
Voltage Drop 2.0 V or lower (Excluding CS-16-5T)
Off-state Current 200 µA or less (Excluding CS-16-5T)
Indicator Lamp Operation indication
Use Ambient Temperature -10 to +55˚C
Temperature Characteristics Within ±15% (At the operating distance at +23˚C) Within ±20% (At the operating distance at +20˚C)
Withstand Voltage 500 V AC    50/60 Hz (1 minute)
Insulation Resistance 50 MK or higher (500 V DC) 5 MK or higher (500 V DC)
Vibration Resistance Double amplitude: 1.5 mm, 10 to 55 Hz (2 h each for X, Y and Z direction)
Impact Resistance 490 m/s2 600 m/s2
Within 11 ms (10 times each for X, Y and Z direction)
Protection Level IP66 IP50 (Dust-resistant)
Case Material PBT Aluminum
(Detector surface: Polycarbonate)
Lead Wire Oilproof vinyl chloride cable 2 m
Outside diameter (Approx. φ3.8) 0.3 mm2, 3 core
Oilproof vinyl chloride cable 1.5 m
Outside diameter (Approx. φ4) 0.3 mm2, 3 core
Tightening Torque 0.4 Nm or less 0.8 Nm or less
Weight (g) Approx. 80 Approx. 100

CS Series
Connection and Operation

Potentiometer  for  Adjusting  the Operating Distance
A multi-rotation potentiometer for adjusting the operating distance is equipped on the back of the main body of capacitance proximity sensors. After the capacitance proximity sensor is installed, use this multi-rotation potentiometer to adjust the operating distance to the standard distance for the grounded metal plate or larger standard target object (50 x 50 x 1 t mm) or below the standard distance, according to the usage. If the multi- rotation potentiometer is turned to the right, the operating distance becomes longer, and if it is turned to the left, the operating distance becomes shorter.
Although the potentiometer can be adjusted 16±5 turns, even if it is turned
too much, there will be no damage because the potentiometer turns idly without stopping at that point.
Note that, if the operating distance is set more than the rated operating distance, operation becomes unstable. (Except for the CS10-34CU-E) Material Characteristics
Even if the same material is detected, the operating distance differs by size and shape of the target object. The table below shows examples of how the operating distance differs by the type of material and shape when detected by a capacitance proximity sensor. (Detection distances differ according to the electrical conductivity, relative permittivity and the water absorption state and volume.)
Precautions
Pay careful attention to the possibility of condensation and freezing of the detector surface and the adhesion of water, oil, and dust to the detector surface because they may cause malfunction.
Note that the adherence of fluid material and powder in a non-metal
container may cause malfunction.  Three M4 screws are used for installing the CS-16-5T and CS-16-5N. Ensure that the screws do not penetrate the case more than 6 mm.
In the case of a 3-wire DC proximity sensor, a load with large making
current (making current of 100 mA or more, such as a lamp, motor, and solenoid) may deteriorate or damage the switching element. In such case, use the sensor via a relay.