MODEL: VOS2T-R
Position Sensors
[4] WIRING CONDUIT
0: G 1/2
1: 1/2" NPT fitting
2-WIRE POSITION TRANSMITTER
(rotary motion type; 90 degrees)
2: G 1/2 with cable connector
4: Cables connected (approx. 1 meter or 3.3 ft)
Functions & Features
• Detecting rotating angle of a valve actuator or moving
positions of other rotating machines and transmitting
standard 4 to 20 mA DC proportional to the position
• Light weight and compact design
• High resolution
RELATED PRODUCTS
•Link set (model: VOLK)
When using in combination with link set (model: VOLK),
specify the module with lever.
• Excellent reliability & durability
• Field selectable direct or reverse action
• Rugged enclosure
GENERAL SPECIFICATIONS
Degree of protection: IP66
(Screw torque for cover: 1.2 – 1.6 N·m)
Action: Direct or reverse; field selectable by change of the
jumper pins' positions; factory set to direct action
Wiring conduit: G 1/2
Connection: M3.5 screw terminals (torque 0.8 N·m)
Materials
119
Housing: Cast aluminium
(4.69)
mm (inch)
Screw terminals: Nickel-plated steel
Cable connector: Nylon 66
(applicable cable's external dia. 6.5 – 8.5 mm)
Lever: Stainless-steel
MODEL: VOS2T–R–[1][2][3][4]
Painting color: Silver
Isolation: Output to metal housing
Zero adjustment: -4.5 – +4.5° of input angle
The Zero indicates such input angle where the transmitter
outputs 12 mA.
ORDERING INFORMATION
• Code number: VOS2T-R-[1][2][3][4]
Specify a code from below for each of [1] through [4].
(e.g. VOS2T-R-11L0)
Span adjustment: 45 – 90° of input angle
The Span indicates the absolute difference between such
input angle for 4 mA and that for 20 mA.
• Input angle
Shipped with input angle adjusted as specified.
If not specified it is adjusted to -45 - 45°.
INPUT SPECIFICATIONS
Input: Mechanical rotating angle
[1] LEVER
0: None
Effective rotating angle: Approx. -55 – +55° (110°)
Linearity assured range: -45 – +45° (90°)
Input angle ajustment: Angle for positive and negative with
center 0°. (-22.5 - +22.5° to -45 - +45°)
Stopper strength: 1.37 N·m (1.011 ft·lbf)
with static load
1: Effective radius 15 – 40 mm (0.59" – 1.57")
2: Effective radius 40 – 130 mm (1.57" – 5.12")
3: Effective radius 35 – 80 mm (1.38" – 3.15")
[2] LEVER POSITION
1: Upper side
2: Lower side
OUTPUT SPECIFICATIONS
Output: 4 – 20 mA DC
[3] RETURN SPRING
0: None
Operational range: 3.5 – 23 mA DC
Load resistance v.s. supply voltage:
L: Counterclockwise return (Seen from the lever side)
R: Clockwise return (Seen from the lever side)
Load Resistance (Ω) = (Supply Voltage (V) – 12 (V)) ÷ 0.02
(A) (including leadwire resistance)
(Refer to the graphic on the end of the section)
Output characteristics: Proportional to the input angle
VOS2T-R SPECIFICATIONS
ES-4766 Rev.7 Page 1/4
http://www.m-system.co.jp/