WENZHOU VTO AUTOMATIC CONTROL VALVE CO.,LTD
Valve Actuators: Pneumatic Actuators, Hydraulic Actuators, Electric Actuators, ...
Valves: Ball Valves, Butterfly Valves, Gate Valves, Check Valves, Globe Valves, Control Valves, ...
Accessories: limit switch, manual override, solenoid valves, air units (air filter, regulator, air set), ...
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Current Location: vtovalve >> Products >> Accessories >> Limit Switch >> ALS400AS2 Limit Switch Box, ALS400AS2 Series Valve Monitor
ALS400AS2 Limit Switch Box, ALS400AS2 Series Valve Monitor
Product Name
Limit Switch Box, Valve Monitor, As-i Flameproof Top Valve Monitor
Model No.
ALS400AS2
Overview
AS-i Limit Switch Box (Valve Monitor) is a rotary position indication device which can directly comunicated with AS-i master in HAZARDOUS area (Ex d II CT6). Armed with ACHEM I/O+Sensor Module, the device can sense the valve position (On/Off), communicate with ASI master and output voltage (24VDC-1.5W) to operate the solenoid valves or relays based on the command from Master and PC.
Approved
Specifications And Technical Data
| Enclosure | Die-casting aluminum: O-ring sealed |
| Coating | Dichromate conversion with polyester powder coating |
| O-rings | Buna N |
| Environment | Type 4, 4X, IP67 |
| Area Classification | Class I Div 1&2 Group A,B,C and D, Exd II CT6, Ex II 2G Ex d II CT6 |
| Fasteners | Stainless steel |
| Shaft | Stainless steel Namur |
| Conduit Entries | Two 1/2" BSPP |
| Also available with two 1/2" NPT, M20-1.5 | |
| Terminal Strip Contacts | 8~14 |
| Mounting Bracket | MB - 3.4: 30 x 80, 130 H : 20, 30 (Carbon steel) |
| Temperature Rating | -20℃ ~ 85℃ |
| AS-i I/O Modules+Sensors | |
| Model No. | AS2 |
| Address | 1A-31A, 1B-31B(62) |
| Outputs (2) | 28VDC (3 Watts total power available) |
| Inputs (4) |
2-internal inputs, 11.6mA, 28VDC, Hall effect sensors |
| Current Consumption | <10.6mA (with no outputs energized) |
| Operating Voltage | 29.5~31.6VDC AS-INTERFACE |
| Indication | 4 Inputs, 2outputs and network, power LEDs |
| Operating Temp. | -40℃ ~ +85℃ |
Wiring Diagram
DIP Switch Setting for Exchangeability
| Manufacturer | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Achem | ON | ON | ON | ON | ON | |||
| Westlock, Alga | ON | ON | ON | ON | ON | |||
| Sense | ON | ON | ||||||
| Pepperl+fuchs | ON | |||||||
| Stonel | ON | ON | ON | |||||
| Topworx | ON | ON | ON | ON | ON |
Note: By setting a DIP switch above which buit-in ACHEM Asi card brings the benefit of exchanged between products already installed, or in the case of an expansion of networks already installed without requiring any changes to PLC/DCS.
Drawing and Dimension
- Valve Automation
- • Hydraulic Valves
- • Pneumatic Valves
- Actuators
- • Hydraulic Actuators
- • Pneumatic Actuators
- • Electric Actuators
- Valves
- • Ball Valves
- • Butterfly Valves
- • Gate Valves
- • Globe Valves
- • Check Valves
- • Control Valves
- • Plug Valves
- • Solenoid Valves
- • Diaphragm Valves
- • Pinch Valves
- • Angle Seat Valves
- • PVC Valves
- • Safety Valves / Relief Valves
- • Special Valves
- Accessories
- • Manual Override
- • Positioners
- • Limit Switch
- • Solenoid Valves
- • Air Preparation Unit
- • Connectors ┆ Adapters
- Valve Fittings
- • Flanges
- • Ball
- • Valve Stem