Products Catalog

Features:
• Works with remote/external pulse frequency output sensor (NPN, PNP, Mag Pick-up and TTL)
• Over-speed or under-speed configuration
• 5 RPM to 100 RPM with 8 PPR input or
• 100 RPM to 5000 RPM with 4 PPR input
• 2 SPDT relay outputs
• DIN rail mounting simplifies installation
• 115, 230 VAC (50-60 Hz) and 12, 24 VDC power options

The unit is switch selectable for NPN, PNP, mag sensor and logic level sensor inputs. Two models offer setpoint ranges from 5 - 5000 RPM. The setpoints are adjustable via two (2) 25-turn potentiometers located under the housing cover. Both setpoints are switch selectable for over- or under-speed operation. A viewable LED indicates the relay status for easy trouble shooting. The DMS is typically used to detect a slowdown on conveyors, fans, blowers and other machinery where a reduction in shaft speed rotation could adversely affect plant operations.

Features:
• Works with remote / external pulse frequency output sensor (NPN, PNP, or Mag Pick-up)
• DPDT relay output
• Under-speed setpoint adjustment from
• 0.5-5,000 rpm (at 8 PPR)
• Terminal blocks for easy wiring
• 115, 230 VAC (50-60 Hz) and 12, 24 VDC power options
• Rugged explosion proof / NEMA 4X housing
• UL Listed Class I, Div I (C, D) Class II, Div I (E, F, G)

The DR1000 is ideal for detecting unwanted slowdown or stoppage of process equipment and is commonly applied to drive trains, power driven components, crushers, exhaust fans, screw conveyors, tail pulleys on belt conveyors, and elevators.

The DR1000 features precise setpoint capability over a broad range of speeds starting at 0.5 rpm, making it ideal for super slow speed applications. The DR1000 monitors shaft speeds, detecting shaft slowdown with a 6.6% hysteresis. A DPDT control relay rated at 5 A at 30 VDC/120 VAC resistive, serves as the output.

Features:
• Self-contained system with sensor and switch 
• Relay can be set for over-speed or under-speed
• Housing is explosion proof and water resistant
• 4-20 mA output directly proportional to shaft speed
• Provides real-time preventive maintenance feedback
• Class I, Div I (C, D) Class II (E, F, G)

The FB420 provides a 4-20 mA signal directly proportional to the rotational speed of a monitored shaft and has a 4 digit LCD display capable of displaying from 0.000 to 9,999 rpm or from 4 to 20 mA, the display is also used for calibration and trouble-shooting. The FB420 has one relay that can be programmed for failsafe over-speed alarm or failsafe under-speed alarm. Typical applications include belt conveyors, drag conveyors, bucket elevators, fans, blowers, crushers, and pumps.

Optional Mounting Magnet: MM-2.00
• No Drilling or Tapping Required!
• EZ-100 Mounting Bracket REQUIRED for use

Features:
• Failsafe operation
• Setpoint ranges: 1-100 and 10-1000 rpm 
• Built-in start delay
• DIN rail or stand alone mounting
• Dial-in calibration does not require power
• ETL approved to UL 508 standard

The LRB1000 (single relay, 1 setpoint) and LRB2000 (double relay, 2 setpoints) shaft speed switches are an efficient way to continuously monitor machine rpm and provide relay protection upon detection of an unwanted change in speed or stoppage of the monitored shaft. The LRB1000 and LRB2000 are completely field adjustable while the machinery is at rest; there is no need to run the shaft. They feature visual setpoint adjustment for dial-in ease and the precise digital circuitry provides high accuracy, repeatability, and reliability.

Features:
• Easy installation and calibration
• Rugged - dust, dirt, and grease proof
• 115 VAC, 50-60 Hz only
• Failsafe Operation

Note: Electro-Sensors recommends the new and improved M100T or M5000T design for new designs and when replacing the M100 or M5000. The functionality is the same, but the new technology includes optional voltages and a terminal strip for ease of installation. Learn about the improvements here.  The PVC100 and PVC5000 will continue to be recommended and supported for new designs.

M100 / M5000
• Class I, Div I (D) Class II (E, F, G) Class III
• Explosion proof, cast aluminum housing

PVC100 / PVC5000
• Poly Vinyl Chloride (PVC) UL and CSA approved
• Corrosion-resistant housing

The M100 and PVC100 have a relay setpoint range of between 10 rpm and 100 rpm. The M5000 and PVC5000 have a relay setpoint range of between 100 rpm and 5,000 rpm. This range is where the relay can be set to trip. In the event of rotational failure, such as broken drives, belt slippage, product overloads, clogs and jams, the SPDT 5-Amp control relay can be used to provide equipment shut down and/or alarm.

Optional Mounting Magnet: MM-2.00 (For M100 Only)
• No Drilling or Tapping Required!
• MUST be used with the EZ-100 Mounting Bracket

Features:
• Internal sensor
• SPDT relay output
• 5-100 rpm (M100T), 100-5,000 rpm
• (M5000T) under-speed setting
• Terminal block for easy wiring
• 115, 230 VAC (50-60 Hz) and 12, 24 VDC power options
• Works with Electro-Sensors magnetic pulser discs / wraps
• Optional EZ-100 Mounting Bracket and Mounting Magnet
• Cast aluminum explosion proof (XP) housing
• UL Listed Class I, Div I (C, D) Class II, Div I (E, F, G)

The M100T and M5000T are compact, self-contained shaft rotation monitoring switches ideal for detecting unwanted slow down or stoppage of process equipment. They have a terminal block inside the housing for easy wiring connection, callibration, and installation. The M100T has a relay setpoint range of between 5 rpm and 100 rpm. The M5000T has a relay setpoint range of between 100 rpm and 5,000 rpm; this is the range where the relay can be set to trip.

In the event of rotational failure, such as broken drives, belt slippage, product overloads, clogs and jams, the SPDT 5-Amp control relay can be used to provide equipment shut down and/or alarm. This detection of a developing problem enables proactive maintenance to prevent equipment damage, product waste, and excessive down time.

Commonly used to monitor drive trains, power driven components, crushers, exhaust fans, screw conveyors, or tail pulleys on belt conveyors and elevator legs.

Optional Mounting Magnet: MM-2.00
• No Drilling or Tapping Required!
• EZ-100 Mounting Bracket is REQUIRED for use

The Model CMS is a direct drive control that indicates when rotating equipment has ceased to turn. The output contacts of the Model CMS can control up to two separate circuits, one for machinery shutdown and one for an alarm.

The Model CMS provides a means of protection to prevent compound damage from inoperative or failed equipment due to a lack of rotation.

Technical Specifications:
• The housing is cast aluminum, with optional epoxy or polyester powder coatings available. These coatings will provide protection against corrosion that is equal or greater than cast iron.
• The unit can be connected to rotating equipment by means of a stub shaft and flexible coupling.
• The unit is mounted on the conveyor by drilling (4) 5/16" diameter holes.
• General purpose (weatherproof) units and explosionproof units have (2) 3/4" NPT conduit openings.
• The standard unit has 120 VAC power input (120 VAC transformer). Optional 240 VAC power input (240 VAC transformer) and 24V AC/DC (transformer-less) available upon request.
• The unit has a dry, unpowered DP/DT relay rated for 3A @ 120 VAC, 240 VAC, and 480 VAC.
• The unit is bi-directional, it will detect motion or loss of motion in either direction.
• The operating temperature range is -50ºF to 150ºF (-45ºC to 66ºC).
• The general purpose units are rated NEMA Type 4/4X weatherproof and corrosion-resistant, and explosion proof units are rated NEMA Type 7/9 for vapor explosion proof and dust ignition proof.
• The general purpose controls are IP65 compliant.
• Most models are UL listed and CSA certified

The Model MSD is comprised of two different components, a control unit and a speed sensor. The Model MSD-800 control unit is a programmable unit that has two set points permitting it to indicate two under-speed points or two over-speed points, or one of each. The control unit acts as a digital tachometer that constantly displays the actual speed of the equipment being monitored. The Model MSD-1 speed sensor installs directly to the shaft of the rotating equipment to be monitored and is enclosed in a rugged cast aluminum housing designed to withstand harsh environments.

The Model MSD alerts the operator of a change in rotary speed. It sends a signal to the control unit which can be used to sound an alarm and/or shutdown the equipment completely.  By monitoring speed you can greatly reduce system and equipment downtime by fixing malfunctions such as broken drive gears or belts, overworked motors, belt overload and other problems before serious damage occurs.

Technical Specifications:
• The controller is programmable with two set points. Indicates two under-speed points or two over-speed points, or one of each.
• The controller is easily field adjustable to desired speed set points.
• Controller acts as a tachometer.  LCD display shows shaft RPM.
• Controller Input Power: 100-240 VAC  (24 VDC available).
• Controller is a 1/16 DIN panel mount for eacy access.
• Controller contains one SP/ST relay (Output 1), one Transistor (Output 1), and one SP/DT relay (Output 2) and corresponding output contacts.
• The sensor is enclosed in rugged cast alumnium housing.  Epoxy coating optional.
• The sensor is NEMA Type 3S, 4, 4X weatherproof and dust tight.
• Sensor is available in explosion proof model NEMA Type 7: Class I, Groups C, D; Type 9: Class II, Groups F, G.
• Sensor operating temperature range is 14ºF to 131ºF (-10ºC to 55ºC).
• The sensor is mounted to the shaft by drilling (4) 5/16" diameter holes.
• The sensor has (2) 3/4" NPT conduit openings.
• Maximum separation distance between controller and sensor is 500 feet.
• The sensor and controller are connected via a two conductor shielded cable (Belden 8760), sold seperately.

Features:
• Single or double relay setpoint(s)
• Failsafe operation 
• Built-in start delay
• Selectable under-speed or over-speed 
• Setpoint ranges: 1-100 and 10-1,000 rpm
• Visual setpoint adjustment with digital accuracy
• Class I, Div I (C, D) Class II, Div I (E, F, G)

SCP Series Switches are ideal for applications where speed indication for alarm and shutdown purposes is critical for safe and efficient equipment operation. The SCP1000 (single relay) and SCP2000 (single or double relay) feature rotary dials for precise setpoint adjustment and can be completely calibrated with the machinery at rest. Digital circuitry provides high accuracy, repeatability, and reliability. They are the industry standard for protecting bucket elevators, fans, airlocks, mixers, or virtually any rotating shaft, including overspeed sensing requirements.

PTU-1000 Test Unit
The PTU Test Unit can be used with the SCP Speed Switch to verify shaft speed or to simulate any unwanted condition for test purposes. Each SCP1000 and SCP2000 is equipped with a portable test jack for use with the PTU-1000.

Optional Mounting Magnet: MM-2.00
• No Drilling or Tapping Required!
• For use with the EZ-SCP Mounting Bracket only

Features:
• Real time shaft speed and up to four programmable over/under speed alarms
• Easily integrates into any DeviceNet network
• DeviceNet group 2 slave with Poll, COS and Explicit Message connections
• Network powered from the network cable - no additional power source needed
• ODVA conformance tested
• Rugged NEMA 4X, IP67, stainless steel M18x1 housing with M12 DeviceNet micro connector
• Mounting bracket and two stainless steel jam nuts are included

SpeedTalker-DN(BH) detects passing magnets of a shaft-mounted pulser disc or wrap, calculating shaft speed and alarm functions for access over DeviceNet.

Speed measurement and alarm functions are field-selectable and settable over DeviceNet.

EDS file is included.

Features:
• Real time shaft speed and up to four programmable over/under speed alarms
• Integrates into any DeviceNet network
• DeviceNet group 2 slave with Poll, COS and Explicit
• Message connections
• Network powered from the network cable - no additional power source needed
• ODVA conformance tested
• Rugged cast aluminum explosion-proof housing with internal DeviceNet open-style connector
• UL listed, (XP) Class I, Div I (C, D) and Class II, Div I (E, F, G), NEMA 4X

SpeedTalker-DN(XP) detects passing magnets of a shaft-mounted pulser disc or wrap, calculating shaft speed and alarm functions for access over DeviceNet.

Speed measurement and alarm functions are field-selectable and settable over DeviceNet.

EDS file included.

May be shaft mounted using the optional EZ-mount bracket assembly.

Optional Mounting Magnet: MM-2.00
(See EZ Mounting Magnets Page for More Information)
• No Drilling or Tapping Required!
• EZ-100 Mounting Bracket REQUIRED for use

Features:
• Dial-in calibration does not require power
• Setpoint ranges: 0.01 - 0.99 and 0.1 - 9.9 rpm
• ETL approved to UL 508 standard
• Failsafe operation in under-speed mode
• DIN rail or stand alone mounting

The SS110 is completely field ajustable and has one setpoint for monitoring a single rotating shaft. It is used in slow speed applications, and allows accurate under-speed detection within the 1/100-10 rpm range. The SS110 is an efficient way to continuously track proper machine rpm, and provide a relay output upon detection of an unwanted change in speed or stoppage of the monitored shaft.

Features:
• Relay changes state when shaft direction reverses
• Relay resets when reverse motion stops
• Easy installation and calibration
• Cast aluminum switch housing NEMA 4X, 7, 9 rated
• 115 VAC standard, 12 VDC, 24 VDC, 230 VAC options
• Class I, Div I (C, D) Class II, Div I (E, F, G)

During operation, the UDS1000 energizes its 5 Amp, DPDT relay when the monitored shaft is at rest or turning in the desired direction of rotation. The relay contacts can be used to enable the motor starter circuit, or provide a visual indication that the start up or process commencement is possible. When the monitored shaft turns in reverse (wrong direction) the relay de-energizes, thus preventing the motor or process from starting.