The 531 provides automatic PID control backup for critical loops controlled by PLC, DCS or PC systems. Unlike a single loop controller configured to sense and retransmit a control signal, which adds liability and complexity; the 531 has a simple operator interface, special parameters for control states upon host transfer or failure, and a special pass-through circuit that provides redundancy in the control loop. In HOST mode,
the control signal (4-20mA) is hard wired to pass through the 531 without degradation. In LOCAL mode, the 531 generates the CV (control) signal in AUTO or MANUAL mode. Host CV tracking enables a bumpless transfer to LOCAL mode in either LOCAL AUTO or LOCAL MANUAL mode. A special CV line sense function triggers HOST to LOCAL transfer automatically if host CV signal fails. LOCAL/HOST transfer may also be initiated by a dedicated front panel key or a contact input. The 531's setpoint may be set locally or remotely from the host, ensuring bumpless changeover to LOCAL AUTO mode. The 531 may also be operated as a manual loading station in the LOCAL MANUAL mode.
The Pepperl+Fuchs all-new 5500 Series Ex pz purge and pressurization system is the newest system from Pepperl+Fuchs that provides easy selection, installation, and operation for enclosures located in Zone 2 and 22 hazardous areas.
Our Ex pz purge systems are designed according to European requirements—ATEX directive 94/9/EG. European protection methods allow multiple techniques to be used when designing hazardous area equipment.
5301/5308 SERIES LOAD PINS
NOSHOK LOAD PINS utilize our proven thin film sensor technology laser welded directly to the measuring instrument. This technology gives us the ability to offer accuracies up to ±0.5% and minimize the disadvantages seen in the bonded foil versions (temperature drifts and long term stability). They are available in many different sizes and shapes for the direct replacement of existing bolts where a force measurement may need to be taken. Various output signals are available to integrate with almost any electrical system. Common applications for load pins are force measurement on roller bearings, industrial weighing, measurement of cable tension on hoists and overload protection on cranes. 
4001V ANACONDA INDUSTRIAL HOSE PUMPS. Exceptional self-priming capabilities make the 4001V Series an ideal choice for hard-to-handle chemicals such as sodium hypochlorite, hydrogen peroxide or viscous polymers.
Self priming pump can be run dry without damage. Flow rates from 1 to 330 GPH. Pressures to 100 psi. 
