Specifications

Pneumatic Tie Rod Cylinders
Series VE
Parker Hannifin Corporation
Cylinder Division
Des Plaines, Illinois USA
www.parker.com/cylinder
13
Catalog HY08-0948-3/NA
Reed Switches
(Recommended for longer life 125 VAC)
Put a resistor and capacitor in parallel with the load. Select the resistor
and capacitor according to the load.
Typical Example:
CR: Relay coil (under 2W coil rating)
R:  Resistor1K-5K, 1/4 W
C: Capacitor 0.1 F, 600 V
(Required for proper operation 24V DC)
Put Diode parallel to loads following polarity as shown below.
D: Diode: select a Diode with the breakdown voltage and current rating ac-
cording to the load.
Typical Example—100 Volt, 1 Amp Diode
CR: Relay coil (under 0.5W coil rating)
Circuit for Switching Contact Protection (Inductive Loads)
Caution
–Useanampmetertotestreedswitchcurrent.Testingdevicessuch
as incandescent light bulbs may subject the reed switch to high
in-rush loads.
– NOTE: When checking an unpowered reed switch for continuity with
a digital ohmmeter the resistance reading will change from infinity to
 averylargeresistance(2Mohm)whentheswitchisactivated.This
is due to the presence of a diode in the reed switch.
–Anti-magneticshieldingisrecommendedforreedswitchesexposed
to high external RF or magnetic fields.
–Themagneticfieldstrengthofthepistonmagnetisdesignedto
operate with our switches. Other manufacturers’ switches or sensors
may not operate correctly in conjunction with these magnets.
Load
Brown
Blue
DC
D
R
Brown
Blue
C
AC
Load
–Userelaycoilsforreedswitchcontactprotection.
–Theoperationofsome120VACPLC’s(especiallysomeolderAllen-
Bradley PLC’s) can overload the reed switch. The switch may fail to
release after the piston magnet has passed. This problem may be
correctedbytheplacementofa700to1KOHMresistorbetween
the switch and the PLC input terminal. Consult the manufacturer of
the PLC for appropriate circuit.
–Switcheswithlongwireleads(greaterthan15feet)cancause
capacitance build-up and sticking will result. Attach a resistor in
series with the reed switch (the resistor should be installed as close
as possible to the switch). The resistor should be selected such that
R(ohms)>E/0.3.
4
13
Reed Switch – Wiring Connection
Flying Lead or 8 mm Connector
1
Pin Wire Function
1 Brown
Operating
Voltage (+V)
4 Black Not Used
3 Blue
Output Signal
(-V or Ground)
12 mm Connector
2
2
4
13
Pin Wire Function
1 Brown
Operating
Voltage (+V)
2
2
White Not Used
3 Blue
Output Signal
(-V or Ground)
4 Black Not Used
Global Drop-In Reed Switches
Wiring Reed Switch
3m Flying Leads P8S-GRFLX
10m Flying Leads P8S-GRFTX
0.3m Lead with 8mm Connector P8S-GRSHX
0.3m Lead with 12mm Connector P8S-GRMHX
1m Lead with 8mm Connector P8S-GRSCX
2
Pin 2 not present.
6.1
4.3
14
Sensing Face Center
31.5
L = 300
36
M8x1
Specifications
Type..............................................2-Wire Reed
Output Function ............................Normally Open
Operating Voltage.........................10 - 120 VAC
1
10 - 30 VDC
Switching Power ...........................6 W/VA
Continuous Current ......................100 mA max.
Response Sensitivity ....................30 Gauss min.
Switching Frequency ....................400 Hz
Voltage Drop.................................2.5 V max.
Ripple ...........................................10% of Operating Voltage
Hysteresis .....................................1.5 mm max.
Repeatability .................................0.2 mm max.
EMC ..............................................EN60947-5-2
Reverse Polarity Protection ..........Yes
EnclosureRating ..........................IP 68
Shock and Vibration Stress ..........30g, 11 ms, 10 to 55 Hz, 1 mm
Operating Temperature Range.....-25°C to +75°C (-13°F to 167°F)
HousingMaterial...........................PA 12, Black
Connector Cable...........................PVC
Connector .....................................PUR cable with 8 or
12 mm connector
1
8mm connector rated for 50 VAC max.
Global Reed Switch output may be influenced by external magnetic fields.
Care must be taken to avoid external magnetic field exposure. See Parker
Industrial Cylinder Catalogs and Cylinder Safety Guide 0800.01-T1 for
additional product application information.