MODEL: VOS2T

VOS2T SPECIFICATIONS

ES-4767 Rev.8 Page 1/4

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

Position Sensors

2-WIRE POSITION TRANSMITTER

(linear motion type; 45 degrees)

Functions & Features

• Detecting stroke positions of a valve actuator or moving

positions of other mechanisms and transmits 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–[1][2][3][4]

ORDERING INFORMATION

• Code number: VOS2T-[1][2][3][4]

Specify a code from below for each of [1] through [4].

(e.g. VOS2T-11R0)

[1] LEVER

1: Stroke 10 – 30 mm (0.39" – 1.18")

2: Stroke 30 – 100 mm (1.18" – 3.94")

3: Stroke 25 – 60 mm (0.98" – 2.36")

[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

•Clamp set (model: VOCP)

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: -2.2 – +2.2° of input angle

The Zero indicates such input angle where the transmitter

outputs 12 mA.

Span adjustment: 22.5 – 45° 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. -27 – +27° (54°)

Linearity assured range: -22.5 – +22.5° (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 sine of rotating

angle of the lever