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Electronic Actuators & Position Sensors

The document describes the VOS2T and VOS2T-R two-wire position transmitters from M-System. They use a brushless angle sensor to detect the rotating angles of pneumatic and electric actuators and send a 4-20 mA DC signal proportional to the angle. They are compact and lightweight with an IP66 enclosure, suitable for field applications. They can measure positions in various mechanical systems like control valves, motor systems, and film feeders.

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Arvinder Singh
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156 views1 page

Electronic Actuators & Position Sensors

The document describes the VOS2T and VOS2T-R two-wire position transmitters from M-System. They use a brushless angle sensor to detect the rotating angles of pneumatic and electric actuators and send a 4-20 mA DC signal proportional to the angle. They are compact and lightweight with an IP66 enclosure, suitable for field applications. They can measure positions in various mechanical systems like control valves, motor systems, and film feeders.

Uploaded by

Arvinder Singh
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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i Position Sensors /

Four-wire
Signal Conditioners
Valve Positioners / Control Backups
Two-wire
Signal Conditioners n Position Sensors
Power Transducers M-System’s Model VOS2T and VOS2T-R are two-wire position
transmitters incorporating a brushless angle sensor as their key
Indicators sensing component. They detect rotating angles of pneumatic and
electric actuators and send 4 to 20mA DC signal proportional to
Limit Alarms the angles.
Gateway,
They are also widely used in monitoring and automating various
Remote I/O
mechanical systems.
Paperless Recording
System s FEATURES s APPLICATIONS

PC Recorder n Lightweight & compact design n Position transmitter for pneumatic control valve or dampers
n High resolution n Proportional control of an ON/OFF valve
Electronic Actuators
& Position Sensors n Direct and reverse actions are selectable in-field n Position feedback for motor-driven systems or servo
Lightning Surge n IP 66 diecast aluminum enclosure is suitable for control systems
Protectors
field applications n Measuring roller position displacement in paper,
cloth and other types of film feeders
n Upward/downward positioning for boarding bridges
n Rudder direction sensing
n Liquid level sensing in reservoir tanks

s PRODUCTS & SPECIFICATIONS

Linear Motion Type Rotary Motion Type


Diecast aluminum enclosure
Model VOS2T VOS2T-R
Direct/Reverse selector
Electronic Actuators Linearity Assured Range -22.5 to +22.5° -45 to +45°
Effective Rotating Angle approx. -27 to +27° approx. -55 to +55° Terminal block
Lever
Position Sensors
Stopper Strength 1.37 N·m (1.011 ft·lbs) with static load
Valve Positioners Output Action Direct or Reverse
Output Signal 4–20mA DC Indicator
Control Backups
Load Resistance 0–600 Ω with 24V DC supply
Direct drive shaft
Supply Voltage 15–28V DC
Degree of Protection IP 66
Wiring Conduit G 1/2
Operating Temperature -5 to +60°C (23 to 140°F)
Brushless angle sensor Cable gland
Maximum Vibration 2G
Approx. Weight 550 g (1.21 lbs) without lever and cable
Linearity 1.0% within the linearity assured range

n Valve Positioners & Control Backups

Valve Positioners Control Backups


MEX Series ABF Series
Motor position/controller Control backup/manual loading station
n Plug-in construction n Holds and manipulates control signals in case of
n DIN rail/surface mount computer or DCS failure

n 4–20mA DC or potentiometer position feedback n Bargraph indicator

n SSR or AC switch control output n Digital display indicating PV/CAS/


MV selectable
n Analog re-transmission
n External contact closure to switch
operation modes

166 Data sheets available on Web in PDF. Visit M-System Data Library at www.m-system.co.jp ISP1-1

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