
MTS Sensors
R-Series Temposonics®Linear-Position Sensors - Model RD4 Flexible Housing Option
Product Data Sheet, Document Part No.: 551166, Revision A 04/10, 10/11 2
Product specifications
Product overview
The Temposonics RD4 position sensor provides an added degree of flexibility compared to the standard R-Series rod style sensor package.
The RD4 design utilizes a separate electronics housing and interconnection cable to allow installation of the sensor rod into small spaces.
By relocating the electronics, the head of the sensor rod is reduced to its minimal size. This makes the RD4 ideal for use with clevis mount
cylinders or any space limited cylinder application. Also, the RD4 sensor can be used for applications that require remote mounting of the
sensor electronics due to environmental factors, such as, high temperatures or high levels of shock and vibration.
The RD4 interconnection cable exits the head of the sensor rod and connects to the electronics housing. The electronics housing, along with its
mounting block, can be configured with either a side cable connection or a bottom cable connection. The side cable connection is
for use with threaded rod styles; 'M', 'T', 'C' and 'D'. These threaded rod styles provide for easy sensor installation into a standard
threaded port opening on the top of the cylinder end cap.
The bottom cable connection is for use with the pressure-fit rod style (i.e. style 'S'). The rod style 'S' requires an appropriately machined cavity
in the cylinder end cap to house the head of the sensor rod. Also, a hole going through the end cap is needed to channel the interconnection
cable to the electronics housing that mounts on the side of the end cap. Proper design and careful sensor installation is required to assure
the correct fit and o-ring sealing. MTS factory assistance is recommended when designing for the rod style 'S' in all new RD4 applications.
Output options
R-Series Model RD4
Product Overview, Output and Specifications
The R-Series Model RD4 sensor is available in voltage, current, SSI,
CANbus, DeviceNet, Profibus, EtherCAT®and EtherNet/IP outputs. Important specification note:
For R-Series model specific specifications, consult the individual data
sheets applicable to the sensor output(s) for your application.
Parameters Specifications
OUTPUT
Measured
output
variables:
Position, velocity, simultaneous multi-
position and velocity measurements.
(Measured output variables depend on the
complete sensor model used.)
Resolution: Output dependent
Update times: Output dependent
Linearity
deviation:
< ± 0.02% full stroke (minimum ± 50 μm)‡
‡For rod style 'S' the linearity deviation
can be higher in the first 30 mm (1.2 in.) of
stroke length.
Repeatability: < ± 0.001% full stroke (minimum ± 2.5 μm)
Hysteresis: < 4 μm, 2 μm typical
Outputs: Voltage, current, SSI, CANbus, DeviceNet,
Profibus, EtherCAT and EtherNet/IP
Measuring
range: 25 to 5080 mm (1 to 200 in.)
ELECTRONICS
Operating
voltage:
+24 Vdc nominal: -15% or +20%
Polarity protection: up to -30 Vdc
Over voltage protection: up to 36 Vdc
Current drain: Output dependent
Dielectric withstand voltage: 500 Vdc
(DC ground to machine ground)
ENVIRONMENTAL
Operating
conditions:
Operating temperature:
-40 °C (-40 °F) to +75 °C (+167 °F)
Relative humidity: 90% no condensation
Parameters Specifications
EMC test‡:Electromagnetic emission:
IEC/EN 50081-1
Electromagnetic susceptibility:
IEC/EN 50082-2
IEC/EN 61000-4-2/3/4/6, level 3/4
criterium A, CE qualified
‡Sensor rod and interconnection cable is
mounted inside a hydraulic housing or
metal housing.
Shock rating: 100 g (single hit)/
IEC standard 68-2-27 (survivability)
Vibration rating: 10 g/10 to 2000 Hz, IEC standard 68-2-6
(operational)
WIRING
Connection type: Connector or integral cable (output dependent)
ROD STYLE SENSOR (MODEL RD4)
Electronic head: Aluminum housing with diagnostic LED
display. (LEDs located beside connector/
cable exit)
Sealing: Sensor electronics: IP 67 (with profession-
ally mounted housing and connectors)
Sensor rod head with interconnection
cable: Threaded style (IP 65) and pressure
fit style (IP 30)
Sensor rod: 304L stainless steel
Operating
pressure:
350 bar static, 690 bar peak
(5000 psi, 10,000 psi peak)
Mounting: Any orientation. Threaded flange M18 x
1.5 or 3/4 - 16 UNF-3A or non-threaded
pressure fit
Typical mount-
ing torque: 45 N-m (33 ft. -Lbs.)
Magnet types: Ring magnet, open-ring magnet or magnet
float