MODEL: VOS2T-R

VOS2T-R SPECIFICATIONS

ES-4766 Rev.7 Page 1/4

http://www.m-system.co.jp/

Position Sensors

2-WIRE POSITION TRANSMITTER

(rotary motion type; 90 degrees)

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

• Excellent reliability & durability

• Field selectable direct or reverse action

• Rugged enclosure

mm (inch)

119

(4.69)

MODEL: VOS2T–R–[1][2][3][4]

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)

• Input angle

Shipped with input angle adjusted as specified.

If not specified it is adjusted to -45 - 45°.

[1] LEVER

0: None

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

[3] RETURN SPRING

0: None

L: Counterclockwise return (Seen from the lever side)

R: Clockwise return (Seen from the lever side)

[4] WIRING CONDUIT

0: G 1/2

1: 1/2" NPT fitting

2: G 1/2 with cable connector

4: Cables connected (approx. 1 meter or 3.3 ft)

RELATED PRODUCTS

•Link set (model: VOLK)

When using in combination with link set (model: VOLK),

specify the module with lever.

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

Housing: Cast aluminium

Screw terminals: Nickel-plated steel

Cable connector: Nylon 66

(applicable cable's external dia. 6.5 – 8.5 mm)

Lever: Stainless-steel

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.

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 SPECIFICATIONS

Input: Mechanical rotating angle

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

OUTPUT SPECIFICATIONS

Output: 4 – 20 mA DC

Operational range: 3.5 – 23 mA DC

Load resistance v.s. supply voltage:

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