Monitoring shaft seal and stator temperature of a submersible pump motor

Marsh Bellofram launches fully submersible shaft seal and stator temperature monitor and relay for OEM, industrial and wastewater pump motors

The ATC Diversified Electronics division of Marsh Bellofram Corporation has launched the SPM series, a dual function alarm and relay, designed to monitor shaft seal and stator temperature of a submersible pump motor, providing early warning of machinery failure to reduce downtime and maintenance costs.

The Marsh Bellofram SPM series is designed to operate from a 120 VAC supply voltage, with reliable operation over 10 million continuous duty cycles. The series detects leaks by either resistive float switch or a pair of conductive probes installed in the seal cavity, while over-temperature is detected by a normally-closed low-temperature switch that is mounted on the stator, with LED’s that indicate green for “normal” and red for “leak” and “over temperature” condition values. The SPM series also incorporates the use of a bi-stable relay which can retain its position during power failures or energy surges. The relay automatically resets following leakage detection. Sensor voltage is 12 VDC at 50 to 60 Hz. Units are UL listed and include a 10-year comprehensive product warranty.

With more than 85 years of proven, successful experience in the global industrial marketplace, Marsh Bellofram ATC Diversified products are known for their high accuracy, reliability and dependability within a highly diverse array of demanding applications. With its strong performance characteristics, the SPM series is ideal for use in OEM; potable or wastewater sump pump; industrial or municipal pump monitoring; control package manufacturing; and general industrial leak detection applications.

Daily-use industrial timer

The ATC Diversified Electronics division of Marsh Bellofram Corporation has announced the introduction of the 405A series, an economical industrial timer family with on-delay instantaneous relay function, designed for daily-use OEM and control package timing applications.

The Marsh Bellofram 405A series features six individual timing ranges within a single unit, packaged within highly compact 48mm2 standard DIN housing. The housing is watertight when panel mounted with an 8-pin round (octal) socket. A selectable on-delay/interval timing mode version is also available. The timer operates from industry standard 24-240 VAC or 24 VDC power, and features a large and easy-to-read display dial with decimal points. Output contacts are rated 10A 120/240 VAC and 30 VDC. Mode and range select switches are located on the side of the unit, so that when panel mounted, they are no operator accessible, a tamperproof feature that prevents unauthorized or hazardous changes to the timing mode and range. A special LED indicator provides a unique and effective method of cycle progress indication. Units are CE marked and UL-pending, as well as CSA and FM approved, facilitating their use across a variety of industrial environments.

Power alert for enhanced NFPA70E, OSHA compliance

The Diversified Electronics division of Marsh Bellofram Corporation has announced the global market introduction of the UPA-130S series. This newest addition to the popular Marsh Bellofram UPA-130 series, the “S” model, is designed to provide solid-on LED lighting and alert capabilities for those monitoring applications requiring enhanced NFPA70E and OSHA safety compliance, instead of the flashing LED’s found on the standard model.

The UPA-130S series is designed to reduce the risk of electric arc flash by pre-verifying the electrical isolation from outside of a control panel before its re-verification with a meter. The series operates over a standard range of 40 to 750 VAC (30 to 1000 VDC) line-to-line or ground-to-ground, is phase insensitive and offers high surge immunity protection. When hardwired to the load side of a circuit breaker or main disconnects, the UPA-130S series detects stored hazardous AC and DC voltage in any individual phase. After disconnecting power to an enclosure, electricians can pre-verify voltage isolation while an enclosure door is still safely closed.  The compact, UPA-130S series offers a potted construction with six-foot leads and is designed to fit a 30mm knockout. Its design includes redundant circuitry and the incorporation of long-life display panel LEDs for extended use, with components housed in NEMA 4X, 12 and 13 electrical enclosures.

The UPA-130S series is a reliable safety tool for pre-verification of the presence or absence of residual electrical power or charges, or as a zero energy indicator, both before or during mechanical lock out/tag out (LOTO) procedures.  It is particularly ideal for use in government project applications, which are typically characterized by more stringent requirements for solid LED lighting, to avoid triggering certain medical conditions that can result from visual exposure to rapidly flashing lights. The UPA-130S series is also ideal for use in applications such as circuit breaker disconnects, as well as with NFPA 70e Category III and IV high energy panels; or as an added electrical safety tool on other types of frequently accessed electrical panels.

In addition to its hazardous area certifications, the UPA-130 is also compliant to CATIII and CATIV standards, and is CE marked and UL-approved in both the US and Canada.

Air pressure regulators with 0.1% accuracy

Marsh Bellofram has recently introduced the Type 10 series, a family of high-precision air pressure regulators offering 0.1% output accuracy with very low sensitivity to supply pressure, ambient temperature changes and flow changes, making them ideal for use in pipe and vessel air pressure monitoring, industrial processes, inspection procedures and control and analysis instrumentation applications.

This series offers a highly rugged design with unique features. These include high start-up stability, eliminating the need for regulated start pressure readjustment after long downtimes, with automatic return to output setting at start-up; incorporation of a high-gain pneumatic servo amplifier for regulated pressure, ranging from dead end to 20 cubic meters per hour (12 SCFM), held constant over substantial flow changes;  incorporation of an extra-large capacity integral relief valve, for exhaust flow when regulated pressure is reset to a lower value, with automatic high downstream relief under dead end conditions; and incorporation of a high-performance servo-operated control mechanism in the regulator for added pressure stability.

In addition, excellent temperature stability is achieved via a measurement capsule constructed of specially selected stainless steel alloys which minimize regulated pressure shifts over wide temperature variations.  Inadvertent pressure adjustments are possible via tightening of the Type 10’s integral locking nut. Units may be installed in any position and either panel mounted or supported by in-line plumbing.  Where low power requirements may be of concern, it is also offered in a motorized configuration of 2 rpm/4 watts; 6 rpm/6 watts with extremely high accuracy, allowing it to be used in HVAC systems, remote pressure control ventilation systems or other electro-pneumatic system control applications. Its design allows for easy integration into open or closed loop process control systems and programmable controllers. The Marsh Bellofram Type 10 series is also offered in several model variations to meet particular requirements.  The Type 10EXHR is a high-relief regulator with the same rugged construction and high-accuracy performance as the standard model, with the addition of extra fast “blowdown” for the extremely rapid release of downstream pressure typically required within fast exhaust applications such as cylinder return stroke actuation and air hoists.  A low-range version, the Type 10LR, allows for an output pressure range of 0.5 psig to 25 psig (0.03 BAR to 1.7 BAR) over a maximum supply pressure of 50 psig (3.4 BAR).

The exceptional versatility and performance of models within this high-performance air pressure regulator series also make it ideal for use in gas mixing, air gauging, disc and shoe air braking, positioned signaling, valve operation, gate actuation, calibration stands, cylinder loading, force balance hoists, clamp units, web tensioning, press units and roll loading applications.

High-flow air pressure regulator for industrial applications

The Precision Controls Division (PCD) of Marsh Bellofram Corporation, has announced the global market introduction of the Type 78, a direct-acting, high-performance air pressure regulator designed to offer high-accuracy, large flow and exhaust capabilities within OEM and industrial applications.

With available port sizes of ⅜, ½, ¾ and 1 NPT and BPST, with ¼ NPT gauges, their Type 78 air pressure regulator is specifically designed for applications that require large flow capabilities and accurate pressure control.  Available in five different pressure output ranges of up to 125 psig (8.6 BAR), this precision regulator offers low droop, high accuracy and fine adjustment sensitivity with maximum supply pressure rated at 400 psig (27.6 BAR) and achievable flow rates of well over 200 SCFM.  Use of a patented Bellofram rolling diaphragm provides greater sensitivity and improved accuracy, along with low-friction operation and long useful service life. The Type 78 offers a balanced pintle, which minimizes output pressure changes caused by fluctuations in supply pressure.  The unit can be either pipe or rail mounted.

Careful design and use of quality materials in manufacturing the Marsh Bellofram Type 78 air pressure regulator ensures long, trouble-free operation.  In addition, the rugged die-cast zinc and aluminum housings of the Type 78 are pressure tested to assure safe operation and designed to withstand harsh and abusive environments. This durability is attributed to a chemical conversion coating of all cast components and a vinyl paint finish. Additional optional features and accessories for the Type 78 include low-bleed, non-relieving, square head adjustment, T-handle adjustment, tamper resistant cover, epoxy paint, tapped supply gauge port and tapped exhaust.  Mounting brackets and repair kits are also available.

The new Marsh Bellofram Type 78 high-pressure air regulator is ideal for use across a variety of industrial applications, including high-flow actuation; high-flow louvers; slitters, rollers and dewinders; high-flow control loop applications; and calibration loops, among others.

Circuit card electro-pneumatic servo pressure regulators for OEMs

The Precision Controls Division (PCD) of Marsh Bellofram Corporation, a member of the Marsh Bellofram Group of Companies, has announced the global market introduction of Type 3110 and Type 3120, a series of single- (3110) and double-loop (3120) electro-pneumatic analog circuit-card servo pressure transducers, designed to provide compact, high-performance, economical air pressure monitoring capabilities within a variety of OEM applications.

Occupying an overall footprint of just 2 inches x 2.8 inches (50.8 mm x 71.12 mm) and with available analog monitor output ranges from 29” Hg to 600 psig, Marsh Bellofram Types 3110 and 3120 offer user selectable, configurable (zero and span) industry standard 0-10 VDC or 4-20 mA control signals, with custom signal outputs available upon request. Industry-standard analog monitor output signals (0-10 V or 4-20 mA optional) are available for user monitoring of actual output pressure. Industry-standard logic output signals (high or low) are also available for user monitoring of set point status – either ‘at set point’ or ‘still searching’.

Two manifold block configurations are available, one with front ports, to facilitate direct panel mounting or seamless insertion into a DIN-rail adapter tray; and the second with bottom ports, facilitating use within multi-unit manifold system applications. An onboard pressure transducer within the manifold block permits ±0.5% full scale accuracy. Custom multi-unit manifolds are also available upon request. Marsh Bellofram Types 3110 and 3120 are perfect for size-conscious OEMs looking for air pressure monitoring without sacrificing any of the high-end capabilities normally associated with full-size I/Ps.

Typical applications include damper control; gas chromatography; process control; and medical equipment, such as ventilators and blood analyzers

Voltage alert in hazardous areas

The Diversified Electronics division of Marsh Bellofram Corporation has announced that it has achieved hazardous area certifications (Class 1, Division 2, HAZ LOC, Groups A, B, C, D) for its UPA-130 series Universal Voltage Alert.

The Voltage Alert is designed to reduce the risk of electric arc flash by pre-verifying the electrical isolation from outside of a control panel before it is re-verified with a meter. It operates over a standard range of 40 to 750 VAC (30 to 1000 VDC) line-to-line or ground-to-ground, is phase insensitive and offers high surge immunity protection. When hardwired to the load side of a circuit breaker or main disconnects, the UPA-130 series flashes upon detection of hazardous AC and DC voltage in any individual phase. After disconnecting power to an enclosure, electricians can pre-verify voltage isolation while an enclosure door is still safely closed. The compact, eight-detector UPA-130 series offers a potted construction with six-foot leads and is designed to fit a 30mm knockout. Its design includes redundant circuitry and the incorporation of long-life display panel LED’s for extended use, with components housed in NEMA 4X, 12 and 13 electrical enclosures.

The UPA-130 series Universal Voltage Alert is a reliable safety tool for pre-verification of the presence or absence of residual electrical power or charges, or as a zero energy indicator, both before or during mechanical lock out/tag out (LOTO) procedures. It can also be used to enhance NFPA 70E and OSHA regulatory compliance standards. This series is also ideal for use in applications such as circuit breaker disconnects, as well as with NFPA 70e Category III and IV high energy panels; or as an added electrical safety tool on other types of frequently accessed electrical panels. In addition to its hazardous area certifications, it is also compliant to CATIII and CATIV standards, and is CE marked and UL-approved in both the US and Canada.