GE Masoneilan digital positioner satellite SVI Series Digital Valve Positioner with display and Hart Communication
Product Introduction
The 496 Series devices are used for indicating positions in the stroke of a control valve on which they are mounted. The detection can be either on-off, in which the housing is fitted with micro-switches or proximity detectors, or continuous, in which the housing is fitted with an opto-electronic unit. Both functions, on-off and continuous, can be combined. These devices may be mounted on rotary valves such as Camflex* II, MiniTork* II, or V-Max*, or on linear motion valves such as the series 21000 and 41005. The body and cover are made of epoxy-painted anodized aluminum. These devices can be explosion-proof and dust- and water-tight in accordance with ATEX 94/9/EC Directive. Some of them are intrinsically safe. (See the following pages for details.) The absence of mechanical contact in the proximity detectors and the opto-electronic position transmitters produces • almost complete insensitivity to vibrations and electrical interference, • very low operating friction, • virtually infinite operating life.
Quick Details
| Place of Origin | America |
| Brand Name | Masoneilan |
| Model Number |
496-157 496-257 496-357 496-457 496-757 496-857 |
| Diagnostics | 5 Pressure Sensors |
| Materials | Case/Cover: - Aluminum ASTM 360 |
| Welded | BW or SW |
| Operating Temperature | Standard Temperature |
| Screwed | NPT 1/4" through 2" (20 through 50 mm) |
| Body Materials | Cast iron PFA lined |
| Actuators | Model 35 spring-opposed rolling diaphragm |
| Trim | Eccentric rotary plug |
| inherent Characteristics | Linear |
Specifications
Internal components for the limit switch and position transmitter are mounted inside an IP66/IP67 enclosure. Performances of position transmitter type 496-857 or 496-857/. and 496-858 or 496-858/. • Output signal: 4-20 mA (2 wires) • Acceptable span on the command axle: from 25° to 90° for rotary or reciprocating valves • Rotation: clockwise or counterclockwise • Linearity: ≤ ± 0.5% for a rotary angle of 25° to 90° (typically ± 0.3% for a rotary angle ≥ 60°) • Hysteresis: ≤ 0.1% • Dead band: ≤ 0.1% • Repeatability: ≤ 0.1% • Total drift in temperature: 0.02 %/°C or 200 ppm/°C (zero and span range) • Operating temperature range: -40°C to +80°C Electrical characteristics and temperature range of the position transmitter with micro-switch(es) or proximity switch(es) are given in the following sections.
Detailed Image
Packaging and Delivery
1. Swift delivery
For common parts, we can deliver the goods within 3 days
2. Original products
All the products we sell are from origin manufacturer. We will submit all the manufacturer documentation while we finish delivery.
3. Quality Assurance
4. Technical Support
Including inspection, repair, and maintenance, we can give all kinds of technical support.
5. Quickly response
Our staff will keep 24h online and answer your question very quickly.
