Sensors for Air Cylinders

Features

Sensors for Air Cylinders detect the movement of magnetic field which is emitted from a magnet mounted on air cylinder piston. These sensors are capable of stable and high precision operations because of having a operatong point on steep area of the aperating curve. N-pole and S-pole sensors shall be used in combination.
・No sensor protrusion from cylinder case.
・Because the sensors have a long sensing length, the operating point can be taken even in the middle of the stroke.
・With the bounce time as 5μsec.,capable of accurate position signaling even working in high speed cylinder.

air cylinders

In case of the conventional product

・Fig-1 Operating curve of Hall Effect IC based Sensors    ・Fig-2 Operating Curve of Conventional sensor

cylinder en fig.1cylinder en fig.2

 

Air cylinder sensors are activated / deactivated by sensing the magnetism of a ring magnet installed in a cylinder piston. Since conventional sensor pick up the intensity of the magnetism regardless of the magnetic direction, the operating curve takes a chevron pattern with the magnet center at the peaking point as shown in figure 1. Because the operating points of such sensors are on the gentle slopes of operating curves, a stroke of 5mm or shorter is hard to be detected, which makes a long, stable operation difficult.

 

With an air cylinder sensors employing Hall Effect IC we offer, the operating curve, as shown in figure 2, takes a very different shape from that of a conventional sensors, because a Hall Effect IC switch picks up only the magnetism vertical against the sensing face. The operating points being on the steep slopes of the operating curves allows a Hall Effect IC switch to detect a small stroke without fail, and to perform stable operation for a long time. In a normal use operation, both N-pole and S-pole sensors will be used in combination.

Common specifications

・3-wire systems

Power supply voltage DC5 ~ 24V
Output specifications NPN open collector
:when proximity is turned ON.

*PNP or Normally Closed output 

available with optional cable

Output current Without LED:15mA
With LED:12mA
Consumption current Without LED:15mA
With LED:12mA
Response speed 5μ sec
Cable length 1m
Cable specifications S-pole:Gray
N-pole:Black
Withstand voltage AC1000V

1 minute/packaged part/

between the case

Insulation resistance DC250V
 Over 20MΩ in megohms/between the case 
 Ambient operating temperature  -20 ~ +85℃
Ambient operating humidity 20 ~ 95% RH

・2-wire systems

Power supply voltage DC12 ~ 24V
Output current 50mA
Leakage current Off state under maximum 0.5mA
Response speed 50m sec
Cable length 1m
Cable specifications S-pole:Gray
N-pole:Black
Withstand voltage AC1000V

1 minute/packaged part/

between the case
Insulation resistance DC250V
Over 20MΩ in megohms/between the case
 Ambient operating temperature  -20 ~ +85℃
Ambient operating humidity 20 ~ 95% RH

*Conversion and current amplification are available with optional cables.

・The circuit diagram must be observed to ensure a correct connection. A reverse connection and a short-circuiting output are strictly prohibited.
・When connecting an inductive load such as relay, be sure to use a freewheeling diode. (Some models already include a built-in freewheeling diode.)

・When installing a sensor, use the torque value designated for each sensor.

・When handling / using the product, do not apply an excessive tension to the cable connection part.

ModelDiagrams(mm)Specifications

ACH01

ACH01

ACH01L

ACH01L

 

ACH01 en zu

 

Sensing pole  ACH01□S : S-pole
ACH01□N : N-pole
ACH01L□S : S-pole
ACH01L□N : N-pole
 Magnetic sensitivity  3~4mT
Output specifications NPN (When proximity is turned ON)
 Output current 15mA
Consumption current 4mA
 Response speed  16 μ sec
Cable specifications

S-pole : Gray

N-pole : Black
Case material GF reinforced PBT : Black
 Mounting Attachment screws 0.06N・m
Indicator light Red
Protective structure IP67
Curcuit diagram CNC-24
*For oil resistant products, "G" is attached to the model.

ACH02

ACH02 / ACH02L

 

 

ACH02 en zu

Sensing pole ACH02□S : S-pole
ACH02□N : N-pole
ACH02L□S : S-pole
ACH02L□N : N-pole

Magnetic sensitivity 

 3~4mT
Output specifications NPN (When proximity is turned ON)
Output current 15mA
Consumption current 4mA
Response speed 16 μ sec
Cable specifications S-pole : Gray
N-pole : Black
Case material   GF reinforced PBT:Black
 Mounting Attachment screws 0.06N・m
Indicator light Red

 Protectiv structure

 IP67
 Circuit diagram CNC-24
 *For oil resistant products, "G" is attached to the model.

ah006

AH006

AH006 en zu

Mounting bracket

AH006 en bracket

 Sensing pole AH006-S : S-pole 
AH006-N : N-pole

Magnetic sensitivity

2.5~3.5mT
 Cable specifications

S-pole : Gray

N-pole : Black
 Case material  GF reinforced PBT : Black
 Mounting Dedicated mounting bracket
Indicator light Red
 Protective structure Equivalent to IP67

Circuit diagram

CNC-18
 

ah007

AH007

AH007 en zu

Both S and N sensing are available with this model.

When setting N-pole downside, please reinsert a setscrew from reverse side.

 

 
Sensing pole

Dual use

(Inverted to detect either S or N)

 Magnetic sensitivity

4.5~6mT
 Case material  GF reinforced PBT:Black
 Mounting Attachment screws 0.06N・m
 Indicater light

AH007-LED : Approximately 100mm

from the main unit

 Protective structure  Equivalent to IP67
 Circuit diagram Without LED : CNC-1
With LED : CNC-20

ah008

AH008RAH008U

AH008 en zu
  Sensing pole AH008□-S : S-pole 
AH008□-N : N-pole
 Magnetic sensitivity 4.5~6mT
Cable specifications S-pole : Gray
N-pole : Black
Case material GF reinforced PBT:Black
Mounting Attachment screws 0.06N・m
 Indicator light Red
Protective structure Equivalent to IP67
Curcuit diagram CNC-2

ah009

AH0092

AH0092 en zu
 Sensing pole AH0092-S : S-pole
AH0092-N : N-pole
Magnetic sensitivity 2.5~3.5mT 
Cable specifications S-pole : Gray
N-pole : Black
Case material Zinc die casting
Mounting M3(SUS) tightening torque 1.5N・m
Indicator light Red
Protective structure Equivalent to IP67
Circuit diagram CNC-8

ah009

AH009

ah009e

AH009E

AH009 en zu

 

 

Power supply voltage AH009 : DC12~24V
AH009E : DC5~24V
Sensing pole AH009-S / AH009-SB / AH009E-S : N-pole
AH009-N / AH009-NB / AH009E-N : S-pole
 Magnetic sensitivity 2.5~3.5mT
Output specifications

AH009-S / AH009-N / AH009E-S / AH009E-N

: NPN N.O.

AH009-SB / AH009-NB
: NPN N.C.
OUtput current AH009 : 80mA
AH009E : 15mA
 Cable specifications AH009-S / AH009-N / AH009E-S : Gray 
AH009-SB / AH009-NB / AH009E-N : Black
Case material Zinc die casting
Mounting M3(SUS) tightening torque 1.5N・m
Indicator light AH009 : Red
AH009E : Wihtout indicator light
Protective strucure Equivalent to IP67
Curcuit diagram AH009-S / AH009-N : CNC-10
AH009-SB / AH009-NB : CNC-11
AH009E-S / AH009E-N : CNC-1

ah0012

AH0012

AH0012 en zu

 

Mounting bracket

AH0012 en bracket

Sensing pole AH0012-S : S-pole
AH0012-N : N-pole
Magnetic sensitivity 2.5~3.5mT
Cable specifications S-pole : Gray
N-pole : Black
Case material GF reinforced PBT : Gray
Mounting Dedicated mounting bracket
Indicator light Red
Protective structure Equivalent to IP67
Circuit diagram CNC-8

ah0013

AH0013RAH0013U

AH0013 en zu


 Sensing pole AH0013□-S : S-pole
AH0013□-N : N-pole
Magnetic sensitivity 2.5~3.5mT
Cable specifications S-pole : Gray
N-pole : Black
Case materials GF reinforced PBT : Gray
Mounting Attachment screws 0.06N・m
Indicator light Red
Protective structure Equivalent to IP67
Circuit diagram CNC-8