Neles™ – Stonel™ Quartz™ limit switch

Highly reliable discrete valve monitor offers exceptional value and versatile platform with full range of capabilities and features
Features

• Wide variety of switching & communication options including solid state proximity and mechanical switches as well as communication and 4-20mA continuous outputs.
• Enclosures optimized for tough process environments
• Rapid enclosure access
• Quick set cams
• Extremely compact with space saving visual indication
• Dual shaft o-ring seals

Benefits

• Switch, sensor, communication options to fit most applications
• Screw-on cover allows quick enclosure access, reduces maintenance and set-up time.
• Touch and tune switch settings allow you to make adjustments in seconds
• Visual indicator offers excellent view ability without sacrificing accessibility or adding to space requirements.
• The oil impregnated bronze bushing maintains smooth operation and eliminates the potential for shaft seizure due to actuator shaft eccentricity.
• Top inner and bottom outer shaft o-rings seal the drive bushing from both external corrosives and internal contaminants

Monitor an automated on/off valve in all process areas

The Quartz monitors and reports valve position with visual indicator and signals to the controller.

Specifications
QX35 / QN35: Universal voltage switching and solenoid termination
QX45 / QN45: Namur sensors (7-24 VDC)
Communication options: AS-Interface, Foundation Fieldbus and DeviceNet
Temperature range: up to -40 °C … +80 °C
Material: Epoxy coated anodized aluminum, optional polycarbonate cover
Hazardous area approvals: Ex d, Ex n, Ex ia (for complete list see technical bulletin)