Devices for monitoring the position of modulating control valves.

The K4-20 range generates an accurate 4-20mA signal to monitor the position of rotary or linear modulating control valves. This product is used either where a positioner is not required or where it is preferable to monitor position via a separate linkage. Ex ia and Ex d versions are available together with optional end of travel limit switches.

• Unaffected by cable or temperature resistance changes
• Neat, compact design with highly accessible internals
• Quick and easy "zero" and "span" settings
• Ingress protection to IP677 (7 joules impact)
• Available in coated aluminium or stainless steel
• All internals protected from site damage
• Mechanical or proximity end of travel switches
• ATEX Ex ia and Ex d certified versions
• IECEx Ex d certified versions
• HART and Foundation Fieldbus versions
• "Klearvision" polycarbonate visual indicators
• Suitable for rotary and linear actuators
• Versions for sub sea use to 200 metres
• CE Marked - EMC / Low Voltage / ATEX Directive compliant